Podcast
Questions and Answers
Which statement best describes the primary function of inflammatory mediators in vascularized connective tissue following a cell injury?
Which statement best describes the primary function of inflammatory mediators in vascularized connective tissue following a cell injury?
- To immediately halt all biological processes in the injured area to prevent further damage.
- To initiate the inflammatory response by eliminating the cause of cell injury and clearing debris. (correct)
- To directly repair damaged cells by synthesizing new cellular components.
- To induce a state of permanent cellular dormancy to avoid potential complications.
Why are anti-inflammatory drugs indicated for chronic inflammatory conditions?
Why are anti-inflammatory drugs indicated for chronic inflammatory conditions?
- They stimulate inflammatory processes to promote faster healing.
- They enhance the body's natural ability to tolerate chronic pain without addressing the inflammation.
- They directly target and eliminate the underlying cause of the inflammation.
- They control the inflammatory process, reducing pain and inflammation. (correct)
What vascular changes are responsible for the clinical signs of redness and heat associated with inflammation?
What vascular changes are responsible for the clinical signs of redness and heat associated with inflammation?
- Decreased production of local chemical mediators or cytokines by damaged cells.
- Vasodilation, which accommodates an increase in blood flow or hyperemia. (correct)
- Increased blood vessel wall permeability, leading to reduced blood flow.
- Vasoconstriction, which decreases blood flow to the site of injury.
How do local chemical mediators or cytokines contribute to the processes of swelling and pain during inflammation?
How do local chemical mediators or cytokines contribute to the processes of swelling and pain during inflammation?
What is the initial vascular response during the acute phase of inflammation following tissue damage or pathogen introduction?
What is the initial vascular response during the acute phase of inflammation following tissue damage or pathogen introduction?
What is the role of chemotactic mediators in the cellular phase of acute inflammation?
What is the role of chemotactic mediators in the cellular phase of acute inflammation?
How do activated macrophages contribute to the acute-phase response in the tissue healing (granular) phase of inflammation?
How do activated macrophages contribute to the acute-phase response in the tissue healing (granular) phase of inflammation?
What physiological processes can lead to chronic inflammation?
What physiological processes can lead to chronic inflammation?
What role do fibroblasts play in chronic inflammation, and what is the potential consequence of their activity?
What role do fibroblasts play in chronic inflammation, and what is the potential consequence of their activity?
What is a key characteristic found in granulomas associated with chronic inflammation?
What is a key characteristic found in granulomas associated with chronic inflammation?
How do NSAIDs and corticosteroids differ in their mechanism of action regarding the phases of inflammation?
How do NSAIDs and corticosteroids differ in their mechanism of action regarding the phases of inflammation?
How do corticosteroids affect the immune responses of lymphocytes, and why is this clinically important?
How do corticosteroids affect the immune responses of lymphocytes, and why is this clinically important?
How do corticosteroids and NSAIDs differ in their mechanisms of action within the arachidonic acid cascade?
How do corticosteroids and NSAIDs differ in their mechanisms of action within the arachidonic acid cascade?
What physiological response do corticosteroid medications mimic, and when might extra doses be prescribed?
What physiological response do corticosteroid medications mimic, and when might extra doses be prescribed?
How does local administration of corticosteroids, such as injections into a joint, minimize serious side effects, compared to systemic administration?
How does local administration of corticosteroids, such as injections into a joint, minimize serious side effects, compared to systemic administration?
What is the primary mechanism by which corticosteroids reduce inflammation?
What is the primary mechanism by which corticosteroids reduce inflammation?
What are some mechanisms involved in the suppression of inflammation by corticosteroids?
What are some mechanisms involved in the suppression of inflammation by corticosteroids?
Why is tapering required when discontinuing corticosteroid therapy that has lasted longer than 7 days?
Why is tapering required when discontinuing corticosteroid therapy that has lasted longer than 7 days?
What is the potential risk associated with high-dose, long-term corticosteroid use, particularly regarding bone health?
What is the potential risk associated with high-dose, long-term corticosteroid use, particularly regarding bone health?
What could happen if a patient taking exogenous corticosteroids abruptly stops their medication?
What could happen if a patient taking exogenous corticosteroids abruptly stops their medication?
Why are NSAIDs a necessary choice in pain management?
Why are NSAIDs a necessary choice in pain management?
What is a significant concern associated with the use of selective cyclooxygenase-2 (COX-2) inhibitor NSAIDs?
What is a significant concern associated with the use of selective cyclooxygenase-2 (COX-2) inhibitor NSAIDs?
What are the advantages and disadvantages of topical NSAIDs compared to oral NSAIDs?
What are the advantages and disadvantages of topical NSAIDs compared to oral NSAIDs?
How do NSAIDs affect pain pathways, and what is their impact on inflammatory hyperalgesia and allodynia?
How do NSAIDs affect pain pathways, and what is their impact on inflammatory hyperalgesia and allodynia?
Why are NSAIDs generally avoided in patients with advanced hepatic or renal disease?
Why are NSAIDs generally avoided in patients with advanced hepatic or renal disease?
What is the consequence of NSAIDs blocking COX-1 enzymes in the context of stomach health?
What is the consequence of NSAIDs blocking COX-1 enzymes in the context of stomach health?
Why should safety concerns exist for NSAID use in patients with, or at elevated risk for, cardiovascular disease?
Why should safety concerns exist for NSAID use in patients with, or at elevated risk for, cardiovascular disease?
How can corticosteroids affect normal lactation after birth, and is this effect reversible?
How can corticosteroids affect normal lactation after birth, and is this effect reversible?
What are the indications for prescribing short-term administration of corticosteroids?
What are the indications for prescribing short-term administration of corticosteroids?
During post-injury acute inflammation, what is the purpose of chemotaxis?
During post-injury acute inflammation, what is the purpose of chemotaxis?
What distinguishes chronic inflammation from acute inflammation in terms of cellular activity and tissue changes?
What distinguishes chronic inflammation from acute inflammation in terms of cellular activity and tissue changes?
Why is it essential to administer certain corticosteroids with food?
Why is it essential to administer certain corticosteroids with food?
How can chronic opioid use impact the effectiveness of NSAIDs in pain management?
How can chronic opioid use impact the effectiveness of NSAIDs in pain management?
When patients are on long-term corticosteroid therapy, what condition can result from the combination of hypothalamic CRH reduction, ACTH reduction, and the adrenal glands stopping cortisol production?
When patients are on long-term corticosteroid therapy, what condition can result from the combination of hypothalamic CRH reduction, ACTH reduction, and the adrenal glands stopping cortisol production?
How can topical NSAIDs benefit a patient struggling with osteoarthritis over systematic oral medications?
How can topical NSAIDs benefit a patient struggling with osteoarthritis over systematic oral medications?
The NSAID medication Naproxen has what kind of cardiac profile?
The NSAID medication Naproxen has what kind of cardiac profile?
High cortisol levels, fatty (buffalo) hump between the shoulders, a round face, weight gain, irregular menstrual cycles, fatigue and depression are symptoms of what syndrome?
High cortisol levels, fatty (buffalo) hump between the shoulders, a round face, weight gain, irregular menstrual cycles, fatigue and depression are symptoms of what syndrome?
Which of the following accurately describes the role of cytokines in the inflammatory process?
Which of the following accurately describes the role of cytokines in the inflammatory process?
In chronic inflammation, which process directly interferes with normal tissue function due to excessive production of growth factors?
In chronic inflammation, which process directly interferes with normal tissue function due to excessive production of growth factors?
How do corticosteroids primarily influence the inflammatory process to reduce inflammation?
How do corticosteroids primarily influence the inflammatory process to reduce inflammation?
What is the MOST significant risk associated with abruptly discontinuing long-term corticosteroid therapy?
What is the MOST significant risk associated with abruptly discontinuing long-term corticosteroid therapy?
Why are corticosteroids sometimes administered in higher doses during acute stress or surgery for patients on long-term therapy?
Why are corticosteroids sometimes administered in higher doses during acute stress or surgery for patients on long-term therapy?
How do nonselective NSAIDs exert their effects on pain and inflammation?
How do nonselective NSAIDs exert their effects on pain and inflammation?
What is the PRIMARY reason that some highly selective COX-2 inhibitor NSAIDs were withdrawn from the market?
What is the PRIMARY reason that some highly selective COX-2 inhibitor NSAIDs were withdrawn from the market?
Which statement accurately describes the mechanism by which NSAIDs reduce pain and inflammation at the cellular level?
Which statement accurately describes the mechanism by which NSAIDs reduce pain and inflammation at the cellular level?
How does food intake affect the absorption of orally administered NSAIDs, and what is its clinical significance?
How does food intake affect the absorption of orally administered NSAIDs, and what is its clinical significance?
In patients with advanced hepatic or renal disease, what is the PRIMARY concern regarding the use of NSAIDs?
In patients with advanced hepatic or renal disease, what is the PRIMARY concern regarding the use of NSAIDs?
What is the rationale behind co-administration of NSAIDs with opioids for pain management?
What is the rationale behind co-administration of NSAIDs with opioids for pain management?
How do topical NSAIDs compare to oral NSAIDs regarding systemic exposure and potential side effects?
How do topical NSAIDs compare to oral NSAIDs regarding systemic exposure and potential side effects?
Which of the following best explains why NSAIDs are typically ineffective in treating neuropathic pain?
Which of the following best explains why NSAIDs are typically ineffective in treating neuropathic pain?
What is the main difference between acute and chronic inflammation in terms of cellular involvement and tissue changes?
What is the main difference between acute and chronic inflammation in terms of cellular involvement and tissue changes?
What is the underlying mechanism by which chronic use of high-dose corticosteroids can lead to avascular necrosis, particularly in the head of the femur and humerus?
What is the underlying mechanism by which chronic use of high-dose corticosteroids can lead to avascular necrosis, particularly in the head of the femur and humerus?
What is the primary concern regarding the use of corticosteroids during pregnancy, especially in the third trimester?
What is the primary concern regarding the use of corticosteroids during pregnancy, especially in the third trimester?
Which of the following accurately describes the role of the hypothalamic-pituitary-adrenal (HPA) axis in the context of corticosteroid therapy?
Which of the following accurately describes the role of the hypothalamic-pituitary-adrenal (HPA) axis in the context of corticosteroid therapy?
How do corticosteroids influence the migration of polymorphonuclear leukocytes and capillary permeability to reduce inflammation?
How do corticosteroids influence the migration of polymorphonuclear leukocytes and capillary permeability to reduce inflammation?
How does genetic variation influence the effectiveness of NSAIDs in different individuals?
How does genetic variation influence the effectiveness of NSAIDs in different individuals?
Which key factor differentiates the pharmacokinetics of aspirin from other common NSAIDs?
Which key factor differentiates the pharmacokinetics of aspirin from other common NSAIDs?
What distinguishes ketorolac from other Nonsteroidal Anti-inflammatory Drugs in terms of its route of administration and analgesic properties?
What distinguishes ketorolac from other Nonsteroidal Anti-inflammatory Drugs in terms of its route of administration and analgesic properties?
In which way do NSAIDs affect pain pathways in the spinal cord dorsal horn?
In which way do NSAIDs affect pain pathways in the spinal cord dorsal horn?
In the context of inflammation, what is the primary purpose of inflammatory mediators?
In the context of inflammation, what is the primary purpose of inflammatory mediators?
What is the primary mechanism by which increased vascular permeability contributes to the signs and symptoms of acute inflammation?
What is the primary mechanism by which increased vascular permeability contributes to the signs and symptoms of acute inflammation?
What is a key factor influencing the effectiveness of topical NSAIDs, such as diclofenac gel, in treating musculoskeletal pain?
What is a key factor influencing the effectiveness of topical NSAIDs, such as diclofenac gel, in treating musculoskeletal pain?
What is the primary mechanism by which corticosteroids can exacerbate or prolong viral infections, such as chickenpox or measles?
What is the primary mechanism by which corticosteroids can exacerbate or prolong viral infections, such as chickenpox or measles?
How do vasoactive mediators (cytokines) contribute to the vascular phase of acute inflammation?
How do vasoactive mediators (cytokines) contribute to the vascular phase of acute inflammation?
What is the rationale for tapering corticosteroid medication instead of abrupt cessation?
What is the rationale for tapering corticosteroid medication instead of abrupt cessation?
Which process is directly facilitated by chemotactic mediators during the cellular phase of acute inflammation?
Which process is directly facilitated by chemotactic mediators during the cellular phase of acute inflammation?
Why is it important to consider the sodium-retaining potential of different corticosteroids when prescribing them?
Why is it important to consider the sodium-retaining potential of different corticosteroids when prescribing them?
What characterizes the transition from acute to chronic inflammation in terms of the immune response?
What characterizes the transition from acute to chronic inflammation in terms of the immune response?
Which statement accurately explains how NSAIDs interact with the arachidonic acid cascade?
Which statement accurately explains how NSAIDs interact with the arachidonic acid cascade?
How does fibrosis, resulting from chronic inflammation, potentially impair normal tissue function?
How does fibrosis, resulting from chronic inflammation, potentially impair normal tissue function?
What is the primary mechanism by which corticosteroids exert their anti-inflammatory effects?
What is the primary mechanism by which corticosteroids exert their anti-inflammatory effects?
What is the PRIMARY advantage of using topical NSAIDs over oral NSAIDs for treating localized musculoskeletal pain?
What is the PRIMARY advantage of using topical NSAIDs over oral NSAIDs for treating localized musculoskeletal pain?
How does the route of corticosteroid administration affect the likelihood of systemic side effects?
How does the route of corticosteroid administration affect the likelihood of systemic side effects?
Why are patients with Crohn’s disease or ulcerative colitis advised to exercise caution when using NSAIDs?
Why are patients with Crohn’s disease or ulcerative colitis advised to exercise caution when using NSAIDs?
What is the potential consequence of prolonged suppression of the hypothalamic-pituitary-adrenal (HPA) axis due to long-term corticosteroid use?
What is the potential consequence of prolonged suppression of the hypothalamic-pituitary-adrenal (HPA) axis due to long-term corticosteroid use?
What is the clinical significance of NSAIDs' ability to penetrate synovial joints, particularly in the context of treating arthritis?
What is the clinical significance of NSAIDs' ability to penetrate synovial joints, particularly in the context of treating arthritis?
What is the connection between high doses of exogenous cortisol and Cushing's Syndrome?
What is the connection between high doses of exogenous cortisol and Cushing's Syndrome?
Why is the gradual tapering of corticosteroid dosage recommended after prolonged use?
Why is the gradual tapering of corticosteroid dosage recommended after prolonged use?
What is the primary mechanism by which long-term use of corticosteroids can lead to increased risk of gastric ulcers or gastritis?
What is the primary mechanism by which long-term use of corticosteroids can lead to increased risk of gastric ulcers or gastritis?
What is a significant risk associated with high-dose, long-term corticosteroid use regarding bone health?
What is a significant risk associated with high-dose, long-term corticosteroid use regarding bone health?
Why are corticosteroids sometimes prescribed in extra doses during times of acute stress, such as severe infection or surgery?
Why are corticosteroids sometimes prescribed in extra doses during times of acute stress, such as severe infection or surgery?
What is the best course of action due to major vascular events from diclofenac?
What is the best course of action due to major vascular events from diclofenac?
In regards to inflammation, what does the vascular phase involve?
In regards to inflammation, what does the vascular phase involve?
What is the primary mechanism by which nonsteroidal anti-inflammatory drugs (NSAIDs) exert their effects?
What is the primary mechanism by which nonsteroidal anti-inflammatory drugs (NSAIDs) exert their effects?
Of the following scenarios, when are corticosteroid prescriptions typically used?
Of the following scenarios, when are corticosteroid prescriptions typically used?
What distinguishes selective cyclooxygenase-2 (COX-2) inhibitor NSAIDs from nonselective NSAIDs?
What distinguishes selective cyclooxygenase-2 (COX-2) inhibitor NSAIDs from nonselective NSAIDs?
Which action should be done with caution when considering giving NSAIDS to patients?
Which action should be done with caution when considering giving NSAIDS to patients?
Why are NSAIDs generally avoided or used with caution in patients with advanced hepatic or renal disease?
Why are NSAIDs generally avoided or used with caution in patients with advanced hepatic or renal disease?
How do NSAIDs affect pain pathways?
How do NSAIDs affect pain pathways?
In what primary way does aspirin differ from other NSAIDs in its mechanism of action?
In what primary way does aspirin differ from other NSAIDs in its mechanism of action?
What is the relationship between NSAID dosage and therapeutic effects?
What is the relationship between NSAID dosage and therapeutic effects?
What is the primary advantage of using topical NSAIDs compared to oral NSAIDs?
What is the primary advantage of using topical NSAIDs compared to oral NSAIDs?
Which factor contributes to the variability in metabolism and elimination of NSAIDs among individuals?
Which factor contributes to the variability in metabolism and elimination of NSAIDs among individuals?
What is the typical duration of action for generic oral formulations of prednisone, methylprednisolone, and triamcinolone?
What is the typical duration of action for generic oral formulations of prednisone, methylprednisolone, and triamcinolone?
What is a common symptom of Cushing's syndrome (hypercortisolism) caused by long-term exposure to an excess of cortisol?
What is a common symptom of Cushing's syndrome (hypercortisolism) caused by long-term exposure to an excess of cortisol?
What route of administration ensures NSAIDs, known for their systemic distribution, effectively reach the synovial joints?
What route of administration ensures NSAIDs, known for their systemic distribution, effectively reach the synovial joints?
The acute phase of inflammation is marked by distinct processes. What is the correct sequence of events?
The acute phase of inflammation is marked by distinct processes. What is the correct sequence of events?
The hypothalamic-pituitary-adrenal (HPA) axis can be suppressed in patients who are receiving corticosteroids for prolonged periods, and ACTH stimulates the release of cortisol from the adrenal cortex. What critical action becomes necessary when therapy is stopped abruptly?
The hypothalamic-pituitary-adrenal (HPA) axis can be suppressed in patients who are receiving corticosteroids for prolonged periods, and ACTH stimulates the release of cortisol from the adrenal cortex. What critical action becomes necessary when therapy is stopped abruptly?
What effect do endogenous corticosteroids have?
What effect do endogenous corticosteroids have?
How are NSAIDs effective against inflammatory pain?
How are NSAIDs effective against inflammatory pain?
What is the role of fibroblasts during periods of chronic inflammation?
What is the role of fibroblasts during periods of chronic inflammation?
What is released in order to bring about vascular changes that cause pain and swelling?
What is released in order to bring about vascular changes that cause pain and swelling?
What affect does food intake have on absorption and systemic availability?
What affect does food intake have on absorption and systemic availability?
In certain cases, NSAIDs have proven an effective treatment option for what pain condition?
In certain cases, NSAIDs have proven an effective treatment option for what pain condition?
What is required for the anti-inflammatory effects of corticosteroids?
What is required for the anti-inflammatory effects of corticosteroids?
What kind of medications are NSAIDs?
What kind of medications are NSAIDs?
Findings from the Coxib and traditional NSAID Trialists’ Collaboration suggest an increased risk for what condition?
Findings from the Coxib and traditional NSAID Trialists’ Collaboration suggest an increased risk for what condition?
How do corticosteroids affect lactation?
How do corticosteroids affect lactation?
What process, involving tissue adherence and permeation, is directly associated with chemotaxis?
What process, involving tissue adherence and permeation, is directly associated with chemotaxis?
What can be said of the relationship between inflammation and infection?
What can be said of the relationship between inflammation and infection?
How do vasoactive mediators contribute to swelling during the acute phase of inflammation?
How do vasoactive mediators contribute to swelling during the acute phase of inflammation?
What is the primary role of chemokines in the cellular phase of acute inflammation?
What is the primary role of chemokines in the cellular phase of acute inflammation?
How do fibroblasts contribute to the pathology seen in chronic inflammation?
How do fibroblasts contribute to the pathology seen in chronic inflammation?
What is a key difference in the mechanism of action between NSAIDs and corticosteroids in reducing inflammation?
What is a key difference in the mechanism of action between NSAIDs and corticosteroids in reducing inflammation?
In what way do corticosteroids primarily influence the inflammatory process?
In what way do corticosteroids primarily influence the inflammatory process?
Why is tapering the dose of corticosteroids recommended when discontinuing long-term therapy?
Why is tapering the dose of corticosteroids recommended when discontinuing long-term therapy?
What is a potential risk of high-dose, long-term corticosteroid use on bone health?
What is a potential risk of high-dose, long-term corticosteroid use on bone health?
Why should NSAIDs be used with caution in patients with cardiovascular disease?
Why should NSAIDs be used with caution in patients with cardiovascular disease?
How do NSAIDs exert their analgesic effects at the peripheral level?
How do NSAIDs exert their analgesic effects at the peripheral level?
What is the primary mechanism by which NSAIDs can cause gastric ulcers or gastrointestinal bleeding?
What is the primary mechanism by which NSAIDs can cause gastric ulcers or gastrointestinal bleeding?
How does food intake typically affect the absorption of orally administered NSAIDs?
How does food intake typically affect the absorption of orally administered NSAIDs?
What primarily differentiates selective COX-2 inhibitor NSAIDs from nonselective NSAIDs?
What primarily differentiates selective COX-2 inhibitor NSAIDs from nonselective NSAIDs?
Why are NSAIDs generally ineffective in treating neuropathic pain?
Why are NSAIDs generally ineffective in treating neuropathic pain?
In what way does aspirin differ from other NSAIDs in its mechanism of action?
In what way does aspirin differ from other NSAIDs in its mechanism of action?
How do NSAIDs affect pain pathways in the spinal cord dorsal horn?
How do NSAIDs affect pain pathways in the spinal cord dorsal horn?
During post-injury acute inflammation, what is the purpose of the adherence of leukocytes to the endothelium termed margination?
During post-injury acute inflammation, what is the purpose of the adherence of leukocytes to the endothelium termed margination?
Which of the following scenarios MOST accurately describes the mechanism by which chronic inflammation can disrupt normal tissue function?
Which of the following scenarios MOST accurately describes the mechanism by which chronic inflammation can disrupt normal tissue function?
How do corticosteroids like prednisone primarily mediate anti-inflammatory effects at the cellular level?
How do corticosteroids like prednisone primarily mediate anti-inflammatory effects at the cellular level?
What is the underlying mechanism by which the abrupt cessation of long-term corticosteroid therapy can precipitate acute adrenal insufficiency?
What is the underlying mechanism by which the abrupt cessation of long-term corticosteroid therapy can precipitate acute adrenal insufficiency?
Why is the use of NSAIDs avoided or approached with extreme caution in patients with advanced hepatic or renal disease?
Why is the use of NSAIDs avoided or approached with extreme caution in patients with advanced hepatic or renal disease?
What is the PRIMARY reason for prescribing supplemental doses of corticosteroids during periods of acute stress or surgery in patients on long-term corticosteroid therapy?
What is the PRIMARY reason for prescribing supplemental doses of corticosteroids during periods of acute stress or surgery in patients on long-term corticosteroid therapy?
How do nonselective NSAIDs exert their analgesic and anti-inflammatory effects at the molecular level?
How do nonselective NSAIDs exert their analgesic and anti-inflammatory effects at the molecular level?
What is the MOST significant cardiovascular risk associated with highly selective COX-2 inhibitor NSAIDs?
What is the MOST significant cardiovascular risk associated with highly selective COX-2 inhibitor NSAIDs?
What is the underlying mechanism by which prolonged use of high-dose corticosteroids can lead to avascular necrosis (osteonecrosis) of the femoral head?
What is the underlying mechanism by which prolonged use of high-dose corticosteroids can lead to avascular necrosis (osteonecrosis) of the femoral head?
How do NSAIDs modulate pain pathways in the spinal cord dorsal horn to reduce pain perception?
How do NSAIDs modulate pain pathways in the spinal cord dorsal horn to reduce pain perception?
What is the primary concern regarding the use of corticosteroids during pregnancy, particularly in the third trimester?
What is the primary concern regarding the use of corticosteroids during pregnancy, particularly in the third trimester?
During the cellular phase of acute inflammation, what specific processes are directly facilitated by chemotactic mediators?
During the cellular phase of acute inflammation, what specific processes are directly facilitated by chemotactic mediators?
Which statement accurately explains how NSAIDs interact with the arachidonic acid cascade to exert their anti-inflammatory effects?
Which statement accurately explains how NSAIDs interact with the arachidonic acid cascade to exert their anti-inflammatory effects?
How does the route of corticosteroid administration (e.g., oral vs. intra-articular) MOST significantly affect the likelihood of systemic side effects?
How does the route of corticosteroid administration (e.g., oral vs. intra-articular) MOST significantly affect the likelihood of systemic side effects?
What distinguishes ketorolac from other NSAIDs in terms of its route of administration and analgesic properties?
What distinguishes ketorolac from other NSAIDs in terms of its route of administration and analgesic properties?
What underlies the rationale for tapering corticosteroid medication instead of abrupt cessation, particularly after prolonged use?
What underlies the rationale for tapering corticosteroid medication instead of abrupt cessation, particularly after prolonged use?
Why is it essential to consider the sodium-retaining potential of different corticosteroids when prescribing them?
Why is it essential to consider the sodium-retaining potential of different corticosteroids when prescribing them?
In regards to inflammation, what does the vascular phase primarily involve?
In regards to inflammation, what does the vascular phase primarily involve?
What characterizes a granuloma, a hallmark of chronic inflammation?
What characterizes a granuloma, a hallmark of chronic inflammation?
What factor influences the effectiveness of topical NSAIDs, such as diclofenac gel, in treating musculoskeletal pain?
What factor influences the effectiveness of topical NSAIDs, such as diclofenac gel, in treating musculoskeletal pain?
How do vasoactive mediators (cytokines) affect the vascular phase of acute inflammation?
How do vasoactive mediators (cytokines) affect the vascular phase of acute inflammation?
By what mechanism does increased vascular permeability primarily contribute to the signs and symptoms of acute inflammation?
By what mechanism does increased vascular permeability primarily contribute to the signs and symptoms of acute inflammation?
Which statement regarding nonselective NSAIDs describes a disadvantage of their mechanism of action?
Which statement regarding nonselective NSAIDs describes a disadvantage of their mechanism of action?
How does the transition from acute to chronic inflammation change the focus of the immune response?
How does the transition from acute to chronic inflammation change the focus of the immune response?
What distinguishes the mechanism of action of corticosteroids from that of nonsteroidal anti-inflammatory drugs (NSAIDs) in controlling inflammation?
What distinguishes the mechanism of action of corticosteroids from that of nonsteroidal anti-inflammatory drugs (NSAIDs) in controlling inflammation?
How does the body's natural cortisol response relate to the therapeutic use of corticosteroid medications during periods of prolonged stress?
How does the body's natural cortisol response relate to the therapeutic use of corticosteroid medications during periods of prolonged stress?
In the context of musculoskeletal inflammation during pregnancy, what determines the choice between using corticosteroids and NSAIDs?
In the context of musculoskeletal inflammation during pregnancy, what determines the choice between using corticosteroids and NSAIDs?
How does genetic variation impact the therapeutic efficacy and safety profile of NSAIDs in different individuals?
How does genetic variation impact the therapeutic efficacy and safety profile of NSAIDs in different individuals?
What is the rationale behind combining NSAIDs with opioids in pain management, and what are the potential benefits and risks of this approach?
What is the rationale behind combining NSAIDs with opioids in pain management, and what are the potential benefits and risks of this approach?
Why is there significant concern regarding the use of selective COX-2 inhibitor NSAIDs despite their reduced gastrointestinal toxicity compared to nonselective NSAIDs?
Why is there significant concern regarding the use of selective COX-2 inhibitor NSAIDs despite their reduced gastrointestinal toxicity compared to nonselective NSAIDs?
How do NSAIDs exert their analgesic effects at the peripheral level to reduce pain sensation?
How do NSAIDs exert their analgesic effects at the peripheral level to reduce pain sensation?
What is the underlying mechanism by which prolonged use of high-dose corticosteroids can lead to avascular necrosis, particularly in the head of the femur and humerus?
What is the underlying mechanism by which prolonged use of high-dose corticosteroids can lead to avascular necrosis, particularly in the head of the femur and humerus?
How does the hypothalamic-pituitary-adrenal (HPA) axis respond to long-term exogenous corticosteroid administration, and what are the clinical implications of this response?
How does the hypothalamic-pituitary-adrenal (HPA) axis respond to long-term exogenous corticosteroid administration, and what are the clinical implications of this response?
In the context of inflammation, what is the primary purpose of chemotaxis?
In the context of inflammation, what is the primary purpose of chemotaxis?
What is the primary mechanism by which topical NSAIDs reduce pain and inflammation compared to oral NSAIDs?
What is the primary mechanism by which topical NSAIDs reduce pain and inflammation compared to oral NSAIDs?
What are the PRIMARY differences among the traditional nonselective COX inhibitor NSAIDs?
What are the PRIMARY differences among the traditional nonselective COX inhibitor NSAIDs?
How would inappropriate prescription doses of exogenous corticosteroids impact the body?
How would inappropriate prescription doses of exogenous corticosteroids impact the body?
What are the therapeutic benefits of administering corticosteroids locally, such as by injection into an inflamed joint or near an irritated nerve?
What are the therapeutic benefits of administering corticosteroids locally, such as by injection into an inflamed joint or near an irritated nerve?
What are the symptoms of acute adrenal insufficiency (also Addison’s disease)?
What are the symptoms of acute adrenal insufficiency (also Addison’s disease)?
How do corticosteroids' immunosuppressant effects relate to leukocyte function?
How do corticosteroids' immunosuppressant effects relate to leukocyte function?
In the context of inflammation, how do chemokines contribute to the cellular phase?
In the context of inflammation, how do chemokines contribute to the cellular phase?
Explain why patients on long-term corticosteroid therapy may need increased doses during acute stress.
Explain why patients on long-term corticosteroid therapy may need increased doses during acute stress.
How do nonselective NSAIDs exert antithrombotic effects, and what is the underlying mechanism?
How do nonselective NSAIDs exert antithrombotic effects, and what is the underlying mechanism?
Describe the role of fibroblasts in chronic inflammation and its potential consequences.
Describe the role of fibroblasts in chronic inflammation and its potential consequences.
How does local administration of corticosteroids minimize systemic side effects?
How does local administration of corticosteroids minimize systemic side effects?
Explain why the HPA axis is a concern during prolonged corticosteroid therapy and how tapering addresses this.
Explain why the HPA axis is a concern during prolonged corticosteroid therapy and how tapering addresses this.
How do NSAIDs reduce inflammatory hyperalgesia and allodynia at the peripheral terminals of nociceptor neurons?
How do NSAIDs reduce inflammatory hyperalgesia and allodynia at the peripheral terminals of nociceptor neurons?
Discuss why certain viral infections may have a more severe course in individuals taking corticosteroids.
Discuss why certain viral infections may have a more severe course in individuals taking corticosteroids.
Describe how the anti-inflammatory effects of corticosteroids differ from those of NSAIDs concerning the phases of inflammation they primarily inhibit.
Describe how the anti-inflammatory effects of corticosteroids differ from those of NSAIDs concerning the phases of inflammation they primarily inhibit.
Explain the mechanism by which corticosteroids can lead to avascular necrosis, particularly in the femoral and humeral heads.
Explain the mechanism by which corticosteroids can lead to avascular necrosis, particularly in the femoral and humeral heads.
How does the use of topical NSAIDs compare to oral NSAIDs in terms of systemic exposure and gastrointestinal side effects?
How does the use of topical NSAIDs compare to oral NSAIDs in terms of systemic exposure and gastrointestinal side effects?
Discuss the role of the intestinal microbiome in the metabolism and elimination of NSAIDs.
Discuss the role of the intestinal microbiome in the metabolism and elimination of NSAIDs.
Explain why NSAIDs are generally not recommended in patients with advanced hepatic or renal disease.
Explain why NSAIDs are generally not recommended in patients with advanced hepatic or renal disease.
How do the cardiovascular effects of selective COX-2 inhibitors compare to those of nonselective NSAIDs, and what are the implications for patient safety?
How do the cardiovascular effects of selective COX-2 inhibitors compare to those of nonselective NSAIDs, and what are the implications for patient safety?
Describe the mechanism by which NSAIDs produce analgesic effects, focusing on their action on cyclooxygenase (COX) enzymes.
Describe the mechanism by which NSAIDs produce analgesic effects, focusing on their action on cyclooxygenase (COX) enzymes.
Explain the significance of the hypothalamic-pituitary-adrenal (HPA) axis in patients undergoing long-term corticosteroid therapy.
Explain the significance of the hypothalamic-pituitary-adrenal (HPA) axis in patients undergoing long-term corticosteroid therapy.
What are the primary mechanisms of action of corticosteroids in reducing inflammation and suppressing the immune system?
What are the primary mechanisms of action of corticosteroids in reducing inflammation and suppressing the immune system?
Explain the role and significance of tumor necrosis factor alpha (TNF-α) in the context of acute inflammation.
Explain the role and significance of tumor necrosis factor alpha (TNF-α) in the context of acute inflammation.
Discuss potential consequences and management strategies for acute adrenal insufficiency in patients discontinuing corticosteroid therapy.
Discuss potential consequences and management strategies for acute adrenal insufficiency in patients discontinuing corticosteroid therapy.
Detail potential considerations regarding the use of corticosteroids during pregnancy. Address both benefits and risks.
Detail potential considerations regarding the use of corticosteroids during pregnancy. Address both benefits and risks.
Detail potential considerations regarding the use of NSAIDs for a patient with diabetes or at elevated risk for thrombotic factors.
Detail potential considerations regarding the use of NSAIDs for a patient with diabetes or at elevated risk for thrombotic factors.
In cases of adrenal insufficiency and HPA axis suppression, why should withdrawal of a corticosteroid be conducted slowly and carefully?
In cases of adrenal insufficiency and HPA axis suppression, why should withdrawal of a corticosteroid be conducted slowly and carefully?
What is the role of equipotent dosing when interchanging corticosteroid preparations, and why is it significant?
What is the role of equipotent dosing when interchanging corticosteroid preparations, and why is it significant?
Compare and contrast the duration of action between standard formulations of prednisone, methylprednisolone, and triamcinolone versus dexamethasone and betamethasone.
Compare and contrast the duration of action between standard formulations of prednisone, methylprednisolone, and triamcinolone versus dexamethasone and betamethasone.
Discuss the implications of plasma protein binding for NSAID distribution and potential drug interactions.
Discuss the implications of plasma protein binding for NSAID distribution and potential drug interactions.
Explain the dose dependent relationship between NSAID concentration and therapeutic effects, and the associated risks such as gastropathy and renal impairment.
Explain the dose dependent relationship between NSAID concentration and therapeutic effects, and the associated risks such as gastropathy and renal impairment.
What specific advice would you provide an athelte on corticosteroid that suffered a severe ankle sprain? Consider dosing adjustments, precautions, and potential adverse effects.
What specific advice would you provide an athelte on corticosteroid that suffered a severe ankle sprain? Consider dosing adjustments, precautions, and potential adverse effects.
How do NSAIDs work to affect pain pathways?
How do NSAIDs work to affect pain pathways?
How can you assess a patient to see ensure no anaphylactoid reactions or other rare adverse effects during corticosteroid administration?
How can you assess a patient to see ensure no anaphylactoid reactions or other rare adverse effects during corticosteroid administration?
What is the role of soluble factors, such as platelet-derived growth factor, fibrogenic cytokines, and angiogenic factors, in chronic inflammation and tissue remodeling?
What is the role of soluble factors, such as platelet-derived growth factor, fibrogenic cytokines, and angiogenic factors, in chronic inflammation and tissue remodeling?
How do corticosteroids inhibit the inflammatory response to tissue injury, and what are the implications of this action for managing inflammation?
How do corticosteroids inhibit the inflammatory response to tissue injury, and what are the implications of this action for managing inflammation?
What distinguishes chronic inflammation from acute inflammation in terms of its causes, cellular composition, and potential outcomes?
What distinguishes chronic inflammation from acute inflammation in terms of its causes, cellular composition, and potential outcomes?
Explain the mechanisms that contribute to acute adrenal insufficiency.
Explain the mechanisms that contribute to acute adrenal insufficiency.
Should athletes with musculoskeletal inflammation late in pregnancy use NSAIDs? Explain why or why not.
Should athletes with musculoskeletal inflammation late in pregnancy use NSAIDs? Explain why or why not.
Why can NSAIDs be a necessary choice in pain management?
Why can NSAIDs be a necessary choice in pain management?
What happens molecularly as a result of corticosteroid administration? Explain the importance of food with administration.
What happens molecularly as a result of corticosteroid administration? Explain the importance of food with administration.
Anaphylactoid reactions are a common side effect in patients receiving corticosteroids. True/False
Anaphylactoid reactions are a common side effect in patients receiving corticosteroids. True/False
What is the primary mechanism of action of NSAIDs, and how does it contribute to their analgesic, antipyretic, and anti-inflammatory effects?
What is the primary mechanism of action of NSAIDs, and how does it contribute to their analgesic, antipyretic, and anti-inflammatory effects?
What are key differences between the topical route of administration for NSAIDs compared to the oral route of administration?
What are key differences between the topical route of administration for NSAIDs compared to the oral route of administration?
Discuss the pharmacokinetics of NSAIDs, with particular emphasis on their absorption, distribution, metabolism, and excretion.
Discuss the pharmacokinetics of NSAIDs, with particular emphasis on their absorption, distribution, metabolism, and excretion.
How does chronic inflammation potentially lead to fibrosis, and what is the primary mechanism behind this process?
How does chronic inflammation potentially lead to fibrosis, and what is the primary mechanism behind this process?
How do corticosteroids affect the hypothalamic-pituitary-adrenal (HPA) axis, and what are the potential consequences of this effect when discontinuing corticosteroid therapy?
How do corticosteroids affect the hypothalamic-pituitary-adrenal (HPA) axis, and what are the potential consequences of this effect when discontinuing corticosteroid therapy?
Explain the mechanism by which NSAIDs exert their analgesic effects, with specific attention to the cyclooxygenase (COX) enzymes.
Explain the mechanism by which NSAIDs exert their analgesic effects, with specific attention to the cyclooxygenase (COX) enzymes.
Compare and contrast the mechanisms of action of corticosteroids and NSAIDs in controlling inflammation.
Compare and contrast the mechanisms of action of corticosteroids and NSAIDs in controlling inflammation.
What are the primary proinflammatory cytokines secreted by activated macrophages during the tissue healing (granular) phase of acute inflammation, and how do these cytokines contribute to the inflammatory response?
What are the primary proinflammatory cytokines secreted by activated macrophages during the tissue healing (granular) phase of acute inflammation, and how do these cytokines contribute to the inflammatory response?
Describe the significance of localized corticosteroid administration versus systemic administration in terms of side effects and therapeutic efficacy.
Describe the significance of localized corticosteroid administration versus systemic administration in terms of side effects and therapeutic efficacy.
Explain why NSAIDs are generally avoided in patients with advanced hepatic or renal disease. What specific pharmacokinetic alterations contribute to this precaution?
Explain why NSAIDs are generally avoided in patients with advanced hepatic or renal disease. What specific pharmacokinetic alterations contribute to this precaution?
How do NSAIDs affect pain pathways, and what are the distinct mechanisms involved in their analgesic action?
How do NSAIDs affect pain pathways, and what are the distinct mechanisms involved in their analgesic action?
What is the role of histamine, bradykinin, and prostaglandins in the vascular changes associated with the acute inflammatory response?
What is the role of histamine, bradykinin, and prostaglandins in the vascular changes associated with the acute inflammatory response?
Describe the differences between selective and nonselective NSAIDs, including their effects on COX enzymes and the associated risks.
Describe the differences between selective and nonselective NSAIDs, including their effects on COX enzymes and the associated risks.
Explain how the acute inflammatory response differs when it occurs due to tissue injury versus when it is triggered by invading pathogens.
Explain how the acute inflammatory response differs when it occurs due to tissue injury versus when it is triggered by invading pathogens.
What are the potential consequences of long-term use of exogenous corticosteroid therapy?
What are the potential consequences of long-term use of exogenous corticosteroid therapy?
What is the role of genomic variation in determining a person’s success rate with a particular NSAID?
What is the role of genomic variation in determining a person’s success rate with a particular NSAID?
Discuss the impact of food intake and antacids on the absorption and systemic availability of orally administered NSAIDs.
Discuss the impact of food intake and antacids on the absorption and systemic availability of orally administered NSAIDs.
How and why is corticosteroid use preferred over NSAIDs for pregnant women with musculoskeletal inflammation late in pregnancy?
How and why is corticosteroid use preferred over NSAIDs for pregnant women with musculoskeletal inflammation late in pregnancy?
What is acute adrenal insufficiency (Addison’s disease), and what are its symptoms?
What is acute adrenal insufficiency (Addison’s disease), and what are its symptoms?
Which specific NSAID has a neutral-positive cardiac profile, and why is this significant in the context of NSAID-associated cardiovascular risks?
Which specific NSAID has a neutral-positive cardiac profile, and why is this significant in the context of NSAID-associated cardiovascular risks?
What is osteonecrosis, and describe the relationship between corticosteroid use and the development of osteonecrosis?
What is osteonecrosis, and describe the relationship between corticosteroid use and the development of osteonecrosis?
How do corticosteroids bring about the suppression of migration of polymorphonuclear leukocytes and reversal of increased capillary permeability?
How do corticosteroids bring about the suppression of migration of polymorphonuclear leukocytes and reversal of increased capillary permeability?
Compare and contrast the differences between administering NSAIDs via the oral, intravenous, and topical routes.
Compare and contrast the differences between administering NSAIDs via the oral, intravenous, and topical routes.
Based on the information provided, what are some precautions that should be taken when prescribing corticosteroid medication to patients?
Based on the information provided, what are some precautions that should be taken when prescribing corticosteroid medication to patients?
Describe the three major phases of acute inflammation.
Describe the three major phases of acute inflammation.
What is the role of cyclooxygenase enzymes (COX-1 and COX-2) in the body, and how do NSAIDs interact with these enzymes to produce their therapeutic effects?
What is the role of cyclooxygenase enzymes (COX-1 and COX-2) in the body, and how do NSAIDs interact with these enzymes to produce their therapeutic effects?
What is HPA axis suppression?
What is HPA axis suppression?
What are the key differences between acute and chronic inflammation, with specific reference to the types of immune cells involved and the potential long-term consequences?
What are the key differences between acute and chronic inflammation, with specific reference to the types of immune cells involved and the potential long-term consequences?
Explain the significance of first-pass metabolism in the context of oral corticosteroid administration, and how does it impact the bioavailability of the drug?
Explain the significance of first-pass metabolism in the context of oral corticosteroid administration, and how does it impact the bioavailability of the drug?
Which laboratory values are recommended to be monitored in patients on long-term NSAID therapy and why?
Which laboratory values are recommended to be monitored in patients on long-term NSAID therapy and why?
How do corticosteroids affect the production and release of inflammatory mediators, and what are the specific factors involved in this process?
How do corticosteroids affect the production and release of inflammatory mediators, and what are the specific factors involved in this process?
Define the term 'avascular necrosis' in the context of corticosteroid therapy, and explain why the head of the femur and humerus are particularly susceptible to this condition.
Define the term 'avascular necrosis' in the context of corticosteroid therapy, and explain why the head of the femur and humerus are particularly susceptible to this condition.
Explain why NSAIDs are often co-administered with antiemetics in the treatment of migraine attacks.
Explain why NSAIDs are often co-administered with antiemetics in the treatment of migraine attacks.
What is the mechanism by which corticosteroids can lead to fluid retention, and which specific aspect of their structure or function contributes to this effect?
What is the mechanism by which corticosteroids can lead to fluid retention, and which specific aspect of their structure or function contributes to this effect?
Elaborate on the role of chemokines in the cellular phase of acute inflammation, detailing their mechanism of action and significance in directing leukocyte migration.
Elaborate on the role of chemokines in the cellular phase of acute inflammation, detailing their mechanism of action and significance in directing leukocyte migration.
Describe the mechanisms by which chronic inflammation can lead to fibrosis and granuloma formation, highlighting the specific cytokines and growth factors involved.
Describe the mechanisms by which chronic inflammation can lead to fibrosis and granuloma formation, highlighting the specific cytokines and growth factors involved.
Compare and contrast the mechanisms of action of corticosteroids and NSAIDs in controlling inflammation, emphasizing their specific targets within the arachidonic acid cascade.
Compare and contrast the mechanisms of action of corticosteroids and NSAIDs in controlling inflammation, emphasizing their specific targets within the arachidonic acid cascade.
Explain why tapering of corticosteroid dosage is necessary after prolonged use, detailing the underlying physiological mechanisms involved in adrenal insufficiency.
Explain why tapering of corticosteroid dosage is necessary after prolonged use, detailing the underlying physiological mechanisms involved in adrenal insufficiency.
Discuss the potential long-term consequences of corticosteroid use on bone health, including the mechanisms contributing to avascular necrosis and osteoporosis.
Discuss the potential long-term consequences of corticosteroid use on bone health, including the mechanisms contributing to avascular necrosis and osteoporosis.
In what specific scenarios would corticosteroid use be preferred over NSAIDs during pregnancy when managing musculoskeletal inflammation, and why?
In what specific scenarios would corticosteroid use be preferred over NSAIDs during pregnancy when managing musculoskeletal inflammation, and why?
Describe the molecular mechanisms by which NSAIDs exert their analgesic and anti-inflammatory effects, with specific attention to the roles of COX-1 and COX-2 isozymes.
Describe the molecular mechanisms by which NSAIDs exert their analgesic and anti-inflammatory effects, with specific attention to the roles of COX-1 and COX-2 isozymes.
Explain how NSAIDs affect pain pathways beyond reducing prostaglandin synthesis, including their impact on leukocyte recruitment and pain-producing neuromodulators in the spinal cord.
Explain how NSAIDs affect pain pathways beyond reducing prostaglandin synthesis, including their impact on leukocyte recruitment and pain-producing neuromodulators in the spinal cord.
Discuss the factors that contribute to the variability in metabolism and elimination of NSAIDs, and how these variations influence dosing guidelines and potential drug interactions.
Discuss the factors that contribute to the variability in metabolism and elimination of NSAIDs, and how these variations influence dosing guidelines and potential drug interactions.
Why do NSAIDs carry cardiovascular risks, and what are the implications for prescribing NSAIDs in patients with pre-existing cardiovascular conditions or risk factors?
Why do NSAIDs carry cardiovascular risks, and what are the implications for prescribing NSAIDs in patients with pre-existing cardiovascular conditions or risk factors?
Differentiate between acute and chronic inflammation in terms of etiology, cellular components, and the resulting tissue pathology.
Differentiate between acute and chronic inflammation in terms of etiology, cellular components, and the resulting tissue pathology.
Explain the clinical significance of the "first-pass effect" in the context of oral corticosteroid administration and how it impacts drug bioavailability and dosing strategies.
Explain the clinical significance of the "first-pass effect" in the context of oral corticosteroid administration and how it impacts drug bioavailability and dosing strategies.
How can genomic variation influence a patient's response to NSAIDs, and what are the implications for personalized pain management strategies?
How can genomic variation influence a patient's response to NSAIDs, and what are the implications for personalized pain management strategies?
Discuss the role of histamine, bradykinin, and prostaglandins as local chemical mediators in the inflammatory process, detailing their specific effects on vascular changes and pain sensitization.
Discuss the role of histamine, bradykinin, and prostaglandins as local chemical mediators in the inflammatory process, detailing their specific effects on vascular changes and pain sensitization.
Describe the effects of corticosteroids on the hypothalamic-pituitary-adrenal (HPA) axis and explain the potential consequences of abrupt cessation of corticosteroid therapy.
Describe the effects of corticosteroids on the hypothalamic-pituitary-adrenal (HPA) axis and explain the potential consequences of abrupt cessation of corticosteroid therapy.
Explain the concept of functional similarity among NSAIDs despite their chemical diversity, and how this relates to their therapeutic effects and side effect profiles.
Explain the concept of functional similarity among NSAIDs despite their chemical diversity, and how this relates to their therapeutic effects and side effect profiles.
Discuss the advantages and disadvantages of topical NSAID administration compared to oral NSAID administration, with specific reference to systemic exposure, efficacy, and potential side effects.
Discuss the advantages and disadvantages of topical NSAID administration compared to oral NSAID administration, with specific reference to systemic exposure, efficacy, and potential side effects.
How do NSAIDs affect the production of inflammatory mediators derived from leukocytes, and what is the clinical significance of this effect in managing inflammatory conditions?
How do NSAIDs affect the production of inflammatory mediators derived from leukocytes, and what is the clinical significance of this effect in managing inflammatory conditions?
Explain how the duration of action and anti-inflammatory properties of repository (depot) corticosteroids differ from those of standard oral corticosteroids, and describe specific clinical scenarios where depot formulations may be preferred.
Explain how the duration of action and anti-inflammatory properties of repository (depot) corticosteroids differ from those of standard oral corticosteroids, and describe specific clinical scenarios where depot formulations may be preferred.
Explain why ketorolac (Toradol) is the only NSAID routinely administered via the parenteral route, and describe the specific situations where this route of administration offers a significant advantage.
Explain why ketorolac (Toradol) is the only NSAID routinely administered via the parenteral route, and describe the specific situations where this route of administration offers a significant advantage.
Flashcards
Inflammation
Inflammation
Complex response to cell injury, eliminating cause and clearing debris for tissue repair.
Anti-inflammatory drugs
Anti-inflammatory drugs
Medications that control the inflammatory process and minimize inflammatory pain.
Acute Phase Response
Acute Phase Response
Physiologic response to tissue injury and infection, not a synonym for infection.
Vasodilation in Inflammation
Vasodilation in Inflammation
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Cytokines
Cytokines
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Vascular Phase
Vascular Phase
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Cellular Phase
Cellular Phase
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Tissue Healing (Granular) Phase
Tissue Healing (Granular) Phase
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Chronic Inflammation
Chronic Inflammation
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Fibrosis
Fibrosis
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Granulomas
Granulomas
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NSAIDs Mechanism
NSAIDs Mechanism
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Corticosteroids Mechanism
Corticosteroids Mechanism
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Corticosteroid Medications
Corticosteroid Medications
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Corticosteroids Adverse Effects
Corticosteroids Adverse Effects
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Corticosteroids Therapeutic Effects
Corticosteroids Therapeutic Effects
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Corticosteroids Dosing During Stress
Corticosteroids Dosing During Stress
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Corticosteroids Indications
Corticosteroids Indications
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Acute Adrenal Insufficiency Symptoms
Acute Adrenal Insufficiency Symptoms
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Corticosteroids Common Side Effects
Corticosteroids Common Side Effects
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NSAIDs Mechanism of Action
NSAIDs Mechanism of Action
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NSAIDs Therapeutic Effects
NSAIDs Therapeutic Effects
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Selective NSAIDs
Selective NSAIDs
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NSAIDs Treat
NSAIDs Treat
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Prostaglandins
Prostaglandins
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Topical NSAIDs
Topical NSAIDs
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NSAIDs Absorption
NSAIDs Absorption
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NSAIDs Metabolism and Excretion
NSAIDs Metabolism and Excretion
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Gastrointestinal Risk
Gastrointestinal Risk
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NSAIDs Precautions
NSAIDs Precautions
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Inflammatory Mediators Function
Inflammatory Mediators Function
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Clinical Signs of Inflammation
Clinical Signs of Inflammation
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The Vascular phase result
The Vascular phase result
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Corticosteroids Examples
Corticosteroids Examples
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Corticosteroids Action
Corticosteroids Action
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Corticosteroids Mechanism Detail
Corticosteroids Mechanism Detail
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Corticosteroids Routes
Corticosteroids Routes
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Prednisone
Prednisone
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Corticosteroids with Food
Corticosteroids with Food
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High-Dose Corticosteroids Risk
High-Dose Corticosteroids Risk
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Short-Term Corticosteroid Use
Short-Term Corticosteroid Use
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Corticosteroids in Pregnancy
Corticosteroids in Pregnancy
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Cushing's Syndrome Cause
Cushing's Syndrome Cause
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NSAIDs Effects
NSAIDs Effects
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NSAIDs Pain Relief
NSAIDs Pain Relief
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Nonselective NSAIDs differences.
Nonselective NSAIDs differences.
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Selective COX-2 Inhibitors
Selective COX-2 Inhibitors
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NSAIDs Advantage
NSAIDs Advantage
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NSAIDs Effectiveness
NSAIDs Effectiveness
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NSAIDs and Prostaglandins
NSAIDs and Prostaglandins
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NSAIDs Primary Route
NSAIDs Primary Route
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Oral NSAID Absorption
Oral NSAID Absorption
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NSAIDs Metabolized
NSAIDs Metabolized
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NSAID with Neutral Cardiac Profile
NSAID with Neutral Cardiac Profile
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Inflammation triggers
Inflammation triggers
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Local Corticosteroid Administration
Local Corticosteroid Administration
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Corticosteroids Main Differences
Corticosteroids Main Differences
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Corticosteroids Dosing
Corticosteroids Dosing
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Corticosteroids Instructions
Corticosteroids Instructions
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NSAIDs Action
NSAIDs Action
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NSAID Elimination Dependence
NSAID Elimination Dependence
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NSAIDs Relationship
NSAIDs Relationship
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NSAIDs
NSAIDs
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Corticosteroid use cases
Corticosteroid use cases
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Classic COX inhibitors action
Classic COX inhibitors action
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Common NSAIDs
Common NSAIDs
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Study Notes
- Inflammation is a complex response to cell injury that occurs in vascularized connective tissue.
- Inflammatory mediators eliminate the cause of injury and clear debris for tissue repair.
- Noxious agents, infections, or injuries trigger the inflammatory response by releasing damage- and pathogen-associated molecules.
- Immune system cells recognize these molecules, initiating the response.
- Inappropriate intensity/duration can lead to chronic inflammation.
- Anti-inflammatory drugs control inflammation and minimize pain.
- Two main anti-inflammatory drug classes: corticosteroids (glucocorticoids) and NSAIDs.
Inflammatory Process
- Acute phase response (inflammation) is a physiological response to tissue injury and infection.
- Inflammation is not synonymous with infection, though their physiological responses are similar.
- Vascular changes cause redness, heat, pain, and swelling.
- Vasodilation and increased blood vessel wall permeability are consistent vascular responses.
- Vasodilation increases blood flow (hyperemia), causing redness and heat.
- Increased endothelial permeability allows plasma exudation, causing swelling and pain.
- Local chemical mediators (cytokines) cause vascular changes.
- Cytokines are released by damaged cells or synthesized in injured tissue.
- Cytokine examples: histamine, bradykinin, prostaglandins.
- Some cytokines sensitize sensory nerve endings, enhancing nociception and pain transmission.
Acute Inflammation
- Three major phases: vascular, cellular, and tissue healing (granular).
- Vascular phase: Vasoactive mediators (cytokines) dilate arterioles and shrink endothelial cells, increasing permeability.
- Increased intracellular permeability allows extravasation of plasma, leading to swelling and pain.
- Cellular phase: Chemotactic mediators target leukocytes, which adhere to endothelium (margination).
- Leukocytes squeeze through openings (diapedesis) in capillaries and migrate into tissues (emigration).
- Chemokines attract macrophages to inflammation site.
- Tissue healing (granular) phase: Macrophages arrive at damaged tissue within 6 hours of onset.
- Activated macrophages secrete proinflammatory cytokines: IL-1, IL-6, and TNF-α.
- These cytokines induce coagulation, increase vascular permeability, and promote the acute-phase response.
- Acute inflammation onset is rapid, resolves quickly, and pathology is typically mild and localized.
- Acute inflammatory response is similar whether due to tissue injury or the body's attempt to limit invading pathogens.
Chronic Inflammation
- Chronic inflammation results from continuous or repeated exposure to offending element/process.
- Causes include continued tissue damage, persistent pathogens, autoimmune diseases, and cancers.
- Hallmarks: accumulation/activation of macrophages and lymphocytes, fibroblast replacement of damaged tissue.
- Soluble factors from macrophages and lymphocytes are important in development.
- Fibroblast replacement leads to fibrosis, interfering with function due to excessive growth factors.
- Excessive growth factors: platelet-derived, fibrogenic cytokines (IL-1, TNF-α), angiogenic factors (fibroblast growth factor, vascular endothelial growth factor).
- Chronic inflammation can lead to granulomas: masses of activated macrophages surrounded by activated lymphocytes.
Controlling Inflammation
- Drugs decrease joint pain, swelling, inflammation, and may prevent/minimize progression.
- Two major anti-inflammatory drug categories: corticosteroids and NSAIDs.
- NSAIDs inhibit the vascular phase of inflammation.
- Corticosteroids primarily inhibit the cellular phase.
- Corticosteroids alter the immune responses of lymphocytes.
- Corticosteroid anti-inflammatory use does not address the underlying cause, but suppression is clinically useful.
- Anti-inflammatory medications inhibit parts of arachidonic acid cascade.
- Nonselective NSAIDs target cyclooxygenase (COX).
- Corticosteroids prevent arachidonic acid liberation from plasma-membrane phospholipids, reducing eicosanoid synthesis.
- NSAIDs are widely used for anti-inflammatory and analgesic effects.
- NSAIDs are a necessary choice in pain management because of the integrated role of the COX pathway in the generation of inflammation and the biochemical recognition of pain.
Corticosteroids
- Corticosteroids (glucocorticoids or steroids) are endogenous hormones, such as cortisol, secreted by the adrenal glands.
- Cortisol is released in response to stress and has numerous effects on the body that are essential for life.
- Corticosteroid medications are synthetic versions of cortisol (e.g., cortisone, prednisone, hydrocortisone) that reduce inflammation and suppress the immune system.
- Corticosteroids have historically been used for pain relief in inflammatory conditions.
- Corticosteroids are among the most frequently prescribed classes of drugs.
- Extended administration and rapid withdrawal may cause serious side effects.
- Decisions to institute therapy with systemic corticosteroids require careful consideration of risks and benefits.
- Examples of corticosteroid medications are "the -ones" (e.g., prednisone, hydrocortisone), as their generic names end in "-one".
Corticosteroids - Therapeutic Effects
- Corticosteroids inhibit the inflammatory response to tissue injury.
- Endogenous corticosteroids suppress manifestations of allergic disease due to the release of histamine.
- Anti-inflammatory effects require high levels of circulating corticosteroids.
- The hypothalamic-pituitary-adrenal (HPA) axis can be suppressed in patients receiving corticosteroids for prolonged periods.
- Large doses of exogenous corticosteroids inhibit ACTH release from the pituitary gland.
- ACTH stimulates the release of cortisol from the adrenal cortex.
- Reduced ACTH secretion can cause severe adrenal insufficiency if corticosteroid therapy is stopped abruptly.
- Local administration of corticosteroids produces a high local concentration of the steroid without serious systemic side effects.
- Main differences among corticosteroids are potency (dose), half-life, and propensity for fluid retention (sodium retention).
Steroid Hormones
- Steroids are a large group with many different functions.
- Corticosteroids, used to treat inflammation, are different than anabolic steroids.
Corticosteroids - Mechanism of Action
- The primary mechanism of action of corticosteroids includes anti-inflammatory and immunosuppressive actions.
- These drugs decrease inflammation by suppressing migration of polymorphonuclear leukocytes and reversing increased capillary permeability.
- Multiple mechanisms involved in the suppression of inflammation by corticosteroids:
- Inhibition of the production of factors critical for generating the inflammatory response
- Decreased release of vasoactive and chemoattractive factors
- Diminished secretion of lipolytic and proteolytic enzymes
- Decreased extravasation of leukocytes to areas of injury
- Decreased fibroblast activity at the site of injury
- The anti-inflammatory effects of corticosteroids are largely due to a reduction in the synthesis or release of various inflammatory mediators, including prostaglandins.
- Corticosteroids inhibit certain aspects of leukocyte function, accounting for their immunosuppressant effect.
- The sum of the actions of corticosteriods results in suppression of the vascular changes responsible for the cardinal signs of inflammation.
Corticosteroids - Routes of Administration
- Corticosteroids are used to treat a variety of inflammatory conditions.
- Administration routes include:
- Intravenously
- Orally
- Intra-articularly
- Topically
- Intralesionally
- Transcutaneously
- Corticosteroids marketed as anti-inflammatories are often topical formulations (e.g., nasal sprays for rhinitis or inhalers for asthma).
- Generic oral formulations of prednisone, methylprednisolone, and triamcinolone typically last for 12 to 36 hours in the body, whereas dexamethasone and betamethasone last for 32 to 72 hours.
- Prednisone is one of the most commonly used corticosteroids, available only in oral form, and is low cost.
- These medications should be administered with food to decrease GI upset.
- Depot preparations of methylprednisolone provide anti-inflammatory effects for 1 to 4 weeks.
- Long-acting repository (depot) formulations are intended for intramuscular or intra-articular injection.
Corticosteroids - Pharmacodynamics and Pharmacokinetics
- Corticosteroids are strikingly similar in their molecular structures and clinical effects.
- All oral corticosteroids undergo first-pass metabolism during absorption.
- When dosed equivalently, the various corticosteroids are equivalent in anti-inflammatory efficacy and have similar side-effect profiles, except for fluid retention.
- Preparations are readily interchangeable, provided that equipotent doses are prescribed.
Corticosteroids - Dosing Guidelines
- Dosing depends on the condition being treated and the patient's response.
- For people who are taking corticosteroids long term, administer extra doses during times of acute stress, such as severe infection or surgery.
- Corticosteroids mimic the cortisol surge that is normally produced by the body.
- Discontinuation of therapy that has lasted longer than 7 days may require tapering of the drug to prevent adrenal crisis.
- Standard formulations of prednisone, methylprednisolone, and triamcinolone last for around 12 to 36 hours in the body, whereas dexamethasone and betamethasone last for 32 to 72 hours.
- Dose requirements are variable, individualized doses are based on disease and patient response.
- A methylprednisolone (Medrol Dosepak) is a low-dose oral corticosteroid treatment course used in sports medicine to treat lower back injuries and other musculoskeletal conditions
- Medrol Dosepak contains 21 tablets of methylprednisolone 4 mg that are taken over a 6-day period.
- When corticosteroids are administered at recommended dosages for short durations of time, these potent anti-inflammatories are considered safe.
- More regular or extended dosing has been associated with several severe adverse effects.
- Use of high-dose corticosteroids, particularly long term, can cause avascular necrosis, especially of the head of the femur and humerus.
- One hypothesis for avascular necrosis is that corticosteroids can increase lipid levels in the blood, thereby reducing blood flow.
- Untreated, avascular necrosis worsens with time, and eventually the bone can collapse.
- Avascular necrosis also causes bone to lose its smooth shape, potentially leading to severe arthritis.
Potential Consequences of Corticosteroid Use
- Corticosteroids are used to treat spinal disc herniation, chronic tendinopathy, and autoimmune or inflammatory diseases.
- Multiple studies have linked osteonecrosis of the hip to corticosteroid use.
- High-dose corticosteroid use is the independent factor most frequently associated with the development of osteonecrosis, particularly of the femoral head.
- A methylprednisolone (Medrol) taper pack (MTP) is a low-dose oral corticosteroid treatment. Little evidence exists linking a single course of MTP to osteonecrosis.
- Osteonecrosis is responsible for >10% of all hip arthroplasties in the United States and Europe.
Corticosteroids - Indications and Precautions
- Short-term administration of corticosteroids may be prescribed for acute and subacute bursitis, acute nonspecific tenosynovitis, ankylosing spondylitis, epicondylitis, posttraumatic osteoarthritis, and several types of arthritis.
- During an exacerbation or as maintenance therapy, the prescriber may consider corticosteroids for select cases of acute rheumatic carditis, systemic dermatomyositis, and systemic lupus erythematosus.
- Prolonged use of corticosteroids may result in immunosuppression, increasing the incidence of secondary infection.
- Viral infections, such as chicken pox or measles, may have a more severe course in people taking corticosteroids.
- High levels of exogenous corticosteroids for a prolonged time cause the hypothalamus to secrete less CRH, which reduces ACTH, thereby causing the adrenal glands to stop making cortisol.
- Discontinuation of steroid medication should be withdrawn slowly over several days or weeks to allow the adrenal cortex to fully resume its functioning capacity again.
- Sudden stop of use can cause acute adrenal insufficiency (Addison’s disease), and symptoms include irritability, nausea, joint pain, dizziness, and low blood pressure.
Corticosteroid Injections and Pregnancy
- Corticosteroid use is preferred for pregnant women with musculoskeletal inflammation late in pregnancy because NSAIDs are contraindicated during the third trimester.
- Corticosteroids are used during pregnancy to treat an autoimmune disorder of the mother that could be more harmful to fetal health than high doses of the medication.
- A historical link was found between corticosteroids and cleft lip births; however, contemporary evidence indicates this incidence is modest.
- Corticosteroid risks during pregnancy include preeclampsia, low birth weight, preterm birth, and potential hyperglycemia and ketoacidosis for the patient with gestational diabetes.
- Corticosteroid use following birth can disturb normal lactation, but this is reversible after stopping use of the medication.
Corticosteroids - Adverse Effects
- In cases of adrenal insufficiency, there is suppression of the HPA axis in patients receiving high doses of corticosteroids for prolonged periods of time.
- With prolonged HPA axis suppression, the adrenal glands atrophy and may take months to recover full function after discontinuation of the exogenous corticosteroid.
- Overuse of steroid joint injections may also result in adrenal suppression after their discontinuation.
- HPA axis suppression may lead to acute adrenal crisis, a potentially life-threatening medical condition requiring immediate emergency treatment.
- Withdrawal and discontinuation of a corticosteroid should be conducted slowly and carefully.
- Patients receiving >20 mg per day of prednisone (or equivalent) may be most susceptible.
- Patients prescribed corticosteroids need to follow precise instructions of the daily schedule without deviation.
- Anaphylactoid reactions are rare but have been observed in patients receiving corticosteroids.
- Side effects associated with corticosteroids:
- Agitation and irritability
- Blurred vision
- Difficulty concentrating
- Dizziness
- Facial hair growth in female patients
- Fast or irregular heartbeat
- Fluid retention
- Headache
- High blood pressure
- Increased blood sugar, cholesterol, or triglycerides
- Increased risk of gastric ulcers or gastritis
- Loss of potassium
- Shortness of breath
- Sleeplessness
- Weight gain
- Long-term use of exogenous corticosteroid therapy may cause abnormally high cortisol levels and lead to Cushing’s syndrome (hypercortisolism).
- Typical undesired effects of corticosteroids present quite uniformly as drug-induced Cushing’s syndrome, caused by long-term exposure to an excess of cortisol.
- Symptoms include a fatty (buffalo) hump between the shoulders, a round face, weight gain, irregular menstrual cycles, fatigue, and depression.
- The AT should consult the prescriber with any additional questions or concerns.
Nonsteroidal Anti-Inflammatory Drugs
- Nonsteroidal anti-inflammatory drugs (NSAIDs) are among the most commonly used groups of drugs.
- More than 20 different NSAIDs are available commercially, and these agents are used worldwide.
- All the NSAIDs have analgesic, antipyretic, and anti-inflammatory effects.
- The traditional (nonselective) NSAIDs also have antithrombotic effects.
- These medications relieve pain by blocking the production of pain-signaling molecules.
- By inhibiting the COX enzymes, NSAIDs relieve pain in joints, muscles, and other soft tissues.
- NSAIDs are a choice in pain management because of the integral role of the COX pathway in the generation of inflammation and the biochemical recognition of pain.
- The agents differ with respect to their side effects, duration of action, degree of platelet antagonism (bleeding), and gastrointestinal toxicity.
- Both traditional nonselective COX inhibitor NSAIDs and the selective cyclooxygenase COX-2 inhibitors are widely used for their anti-inflammatory and analgesic effects
- The NSAIDs are grouped by their chemical similarity, which leads to functional similarity.
- This chemical diversity yields a broad range of pharmacokinetic characteristics.
- Although there are many differences in the kinetics of NSAIDs, the drugs have many general properties in common.
NSAIDS - Categories
- Two major categories of NSAIDs:
- Nonselective (traditional, classic, older) COX inhibitor NSAIDs—Vary primarily in their potency, analgesic and anti-inflammatory effectiveness, and duration of action. Some have better anti-inflammatory effectiveness and others have better analgesic effectiveness.
- Selective (newer) cyclooxygenase-2 (COX-2) inhibitor NSAIDs—All named with the ending -coxib, these medications produce analgesia equivalent to that of the nonselective NSAIDs while decreasing the adverse effects, specifically the GI toxicity associated with chronic NSAID use.
- Postclinical experience involving some of the highly selective COX-2 inhibitors has shown a higher incidence of cardiovascular thrombotic events than with the nonselective drugs.
- Both rofecoxib (Vioxx) and valdecoxib (Bextra) have been withdrawn from the market because of an increased risk of adverse cardiovascular events.
- Withdrawn NSAIDs had increased cardiovascular risks at high doses in the elderly (heart attack, stroke) and skin reactions.
- Only celecoxib (Celebrex) is currently available for use in the United States despite having similar risks.
Cardiovascular Risk Associated With NSAIDs
- Some drugs used to treat noncardiovascular conditions may adversely affect the cardiovascular status of patients both with and without known cardiovascular disease.
- Findings from the Coxib and traditional NSAID Trialists’ (CNT) Collaboration revealed an increase in the incidence of myocardial infarction, stroke, and vascular death.
- Major vascular events were increased by about a third by a coxib (rate ratio [RR] 1.37, 95% confidence interval [CI] 1.14-1.66; p = 0.0009).
- The nonselective COX inhibitor, diclofenac, is primarily prescribed topically chiefly due to an increase in major coronary events
- Diclofenac RR 1.70, CI 1.19-2.41; p = 0.0032.
- Major vascular events and major coronary events were increased by diclofenac.
NSAIDs – Therapeutic Effects
- The NSAIDs are antipyretic, analgesic, and anti-inflammatory medications.
- NSAIDs provide mostly symptomatic relief from pain and inflammation associated with musculoskeletal disorders, such as strains, sprains, and various symptoms associated with rheumatoid arthritis and osteoarthritis.
- Patients with more debilitating disease may require aggressive therapy with second-line agents such as analgesics or corticosteroids.
- Genomic variation may also affect a person’s success rate with a particular NSAID; thus, there are >20 treatment options.
- The NSAIDs are effective against inflammatory pain of low to moderate intensity.
- Although their maximal efficacy is generally less than that of opioids, NSAIDs lack the unwanted adverse effects of opiates in the central nervous system (CNS), including respiratory depression and the potential for the development of physical dependence.
- Coadministration of NSAIDs can reduce the opioid dose needed for sufficient pain control.
- Ibuprofen can be prescribed in combination with hydrocodone to reduce opioid dose needed for sufficient pain control and thus reduce the likelihood of adverse opioid effects.
- Although NSAIDs do not change the perception of sensory modalities other than pain, NSAIDs are particularly effective when inflammation has caused sensitization of pain perception.
- Postoperative pain or pain arising from inflammation, such as arthritic pain, is controlled well by NSAIDs, whereas pain arising from the hollow viscera usually is not relieved.
- Treatment of menstrual pain with NSAIDs is often useful.
- NSAIDs are commonly used to treat migraine attacks and can be combined with antiemetics to aid relief of the associated nausea.
- NSAIDs (and opioids) generally lack efficacy in neuropathic pain, such as diabetic neuralgia or pain associated with shingles (postherpetic neuralgia).
- Ketorolac (Toradol) 60 mg administered intramuscularly (IM) has been shown to produce analgesia equivalent to morphine 10 mg IM for this type of pain.
NSAIDs - Mechanisms of Action
- The classic COX inhibitors are not selective and inhibit all types of COX enzyme activity.
- The classic COX inhibitors impair the ultimate transformation of arachidonic acid to prostaglandins, prostacyclin, and thromboxanes
- Inhibition of prostaglandin and thromboxane synthesis results in reduced inflammation, as well as antipyretic, antithrombotic, and analgesic effects.
- NSAIDs affect pain pathways in at least 3 ways:
- Prostaglandins reduce the activation threshold at the peripheral terminals of primary afferent nociceptor neurons.
- By reducing prostaglandin synthesis, NSAIDs decrease inflammatory hyperalgesia and allodynia.
- NSAIDs decrease the recruitment of leukocytes and, thereby, the production of leukocyte-derived inflammatory mediators.
- NSAIDs that cross the blood-brain barrier prevent the generation of prostaglandins that act as pain-producing neuromodulators in the spinal cord dorsal horn.
NSAIDs - Route of Administration
- NSAIDs are used for the treatment of mild to moderate pain, especially the pain associated with musculoskeletal inflammation.
- The primary route of NSAID administration is oral for both prescription and over-the-counter (OTC) medicines.
- Ketorolac (Toradol) is the only NSAID routinely administered via the parenteral route.
- Topical NSAIDs have decreased systemic exposure compared to the oral and intravenous formulations; therefore, they are expected to cause less serious side effects.
- According to a recent Cochrane systematic review, diclofenac gel, ketoprofen gel, piroxicam gel, and diclofenac plaster work reasonably well for strains and sprains.
- Topical diclofenac and topical ketoprofen rubbed on the skin for ≥6 weeks helped reduce pain by at least half in a modest number of people with hand and knee osteoarthritis
- Methods that enhance transdermal delivery, such as iontophoresis or chemical penetration enhancers, continue to be investigated.
- Although topical and oral NSAIDs may produce similar efficacy, patients receiving topical NSAIDs reported fewer GI side effects compared with those using oral formulations.
- The cardiovascular and renal safety profile of topical NSAIDs remains to be assessed, and the possibility of skin rashes due to topical application of NSAIDs should be kept in mind.
- The lower systemic exposure that is expected from topical usage may result in a better overall safety profile for these routes of administration.
NSAIDs - Pharmacokinetics
- The major differences between NSAIDs are their therapeutic half-lives and safety profiles.
- NSAIDs are systemic drugs that are distributed throughout the body and readily penetrate synovial joints.
NSAID - Absorption and Distribution
- Most NSAIDs are acidic compounds with a relatively high bioavailability.
- After oral administration, the absorption of NSAIDs is generally rapid, and peak plasma concentrations are reached within 3 hours.
- Oral NSAIDs undergo hepatic first-pass metabolism, resulting in reduced bioavailability.
- Food intake may delay absorption and systemic availability.
- Antacids, commonly prescribed to patients on NSAID therapy, variably delay absorption.
- Aspirin begins to acetylate platelets within minutes of reaching the presystemic circulation.
- For distribution, NSAIDs bind to plasma proteins; they are usually metabolized in the liver and excreted in the urine.
- Most NSAIDs are extensively bound (95% to 99%) to plasma proteins, usually albumin
- They achieve sufficient concentrations in the CNS to have a central analgesic effect.
- Most NSAIDs are distributed widely throughout the body and readily penetrate synovial joints, yielding synovial fluid concentrations in the range of half the plasma concentration.
- The volume of distribution of NSAIDs is low, ranging from 0.1 to 0.3 L/kg, suggesting minimal tissue binding.
- NSAID binding in plasma can be saturated when the concentration of the NSAID exceeds that of albumin.
NSAIDs - Metabolism and Excretion
- Hepatic biotransformation and renal excretion are the principal routes of metabolism and elimination of the majority of NSAIDs.
- Common NSAIDs have a variable half-life (t½).
- Aspirin has a t½ of 0.25 to 0.3 hours.
- Ibuprofen has a t½ of about 2 hours, is relatively safe, and is the least expensive of the traditional nonselective NSAIDs.
- Naproxen has a comparatively long but highly variable t½ ranging from 12 to 17 hours.
- Variation in the composition of the intestinal microbiome may contribute to variability in metabolism and elimination.
- In general, NSAIDs are not recommended in patients with advanced hepatic or renal disease due to the drugs’ potential altered pharmacokinetic effects, which can potentiate increased adverse pharmacodynamic effects, including risk of bleeding and acute kidney injury.
- NSAID elimination is dependent on the free (unbound) fraction of the drug within the plasma and the intrinsic enzyme activities of the liver to metabolize the drug to an excretable metabolite.
NSAIDs - Dosing Guidelines
- Most patients take therapeutic doses of NSAIDs for short durations of time and usually tolerate them well.
- NSAIDs have a dose-dependent relationship between concentration and therapeutic effects.
- All NSAIDs pose dose- and age-related risks of gastropathy and renal impairment.
- The enzyme COX-1 plays a role in protecting the stomach lining.
- Because most NSAIDs block COX-1, they all increase the risk of stomach ulcers and GI bleeding.
- Naproxen is the only NSAID with a neutral-positive cardiac profile.
- Some selective NSAIDs, along with some of the nonselective COX-inhibitor NSAIDs, were found to increase the risk of heart attacks.
NSAIDs - Precautions
- Safety concerns exist for NSAID use in patients with, or at elevated risk for, cardiovascular disease, diabetes, or thrombotic events.
- NSAIDs should be avoided in patients with renal insufficiency
- Major vascular events and major coronary events were increased by diclofenac.
- Topical diclofenac and ketoprofen help reduce pain by at least half in people with hand and knee osteoarthritis when rubbed on the skin for at least 6 weeks.
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