Peripheral Artery Disease Overview
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Peripheral Artery Disease Overview

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Questions and Answers

Which condition is most likely caused by the compression of the laryngeal nerve due to an aortic aneurysm?

  • Lower back pain
  • Hoarseness (correct)
  • Distended neck veins
  • Difficulty swallowing

    • What is a common risk factor for developing an aortic aneurysm in males over age 50?

  • Regular exercise
  • Hypertension (correct)
  • Low alcohol consumption
  • High cholesterol diet

    • What is a characteristic clinical manifestation of an abdominal aortic aneurysm?

  • Difficulty breathing
  • Hoarseness
  • Palpable mass greater than 4 cm (correct)
  • Substernal pain

    • Which diagnostic test is NOT commonly used for diagnosing an aortic aneurysm?

    <p>Electrocardiogram</p> Signup and view all the answers

    Which complication is associated with a ruptured abdominal aortic aneurysm?

    <p>Lower extremity ischemia</p> Signup and view all the answers

    What is a common symptom of intermittent claudication in patients with Peripheral Artery Disease?

    <p>Calf pain</p> Signup and view all the answers

    Which diagnostic test is NOT used for Peripheral Artery Disease?

    <p>Electrocardiogram (ECG)</p> Signup and view all the answers

    What is the goal of walking as a treatment for Peripheral Artery Disease?

    <p>Improve blood flow to the legs</p> Signup and view all the answers

    What does a true aneurysm involve?

    <p>Weakening of all three layers of the wall</p> Signup and view all the answers

    Which of the following is a cause of aortic aneurysms?

    <p>Atherosclerosis</p> Signup and view all the answers

    What is the primary complication associated with pericardial effusion?

    <p>Cardiac tamponade</p> Signup and view all the answers

    Which symptom is most commonly associated with acute pericarditis?

    <p>Severe chest pain</p> Signup and view all the answers

    What does Beck's triad consist of?

    <p>Low blood pressure, muffled heart sounds, and distended jugular veins</p> Signup and view all the answers

    Which type of cardiomyopathy is characterized by hypertrophied myocardium and is a leading cause of sudden cardiac death in young athletes?

    <p>Hypertrophic cardiomyopathy</p> Signup and view all the answers

    What is the main characteristic of restrictive cardiomyopathy?

    <p>Increased diastolic filling pressure with preserved systolic function</p> Signup and view all the answers

    Which of the following can lead to dilated cardiomyopathy?

    <p>Viral infections</p> Signup and view all the answers

    What diagnostic tests are recommended for identifying cardiomyopathies?

    <p>MRI, genetic testing, and echocardiogram</p> Signup and view all the answers

    Which autoimmune disease could potentially lead to pericarditis?

    <p>Rheumatoid arthritis</p> Signup and view all the answers

    Which type of cardiomyopathy is characterized by an enlarged heart with weakened ability to pump blood?

    <p>Dilated Cardiomyopathy</p> Signup and view all the answers

    What is the primary difference between mitral stenosis and mitral regurgitation?

    <p>Stenosis prevents normal blood flow, while regurgitation entails improper closure allowing backflow.</p> Signup and view all the answers

    What is a common symptom associated with heart failure?

    <p>Dyspnea</p> Signup and view all the answers

    Which diagnostic test is commonly utilized for evaluating cardiomyopathy?

    <p>Echocardiogram</p> Signup and view all the answers

    What is a common symptom of acute kidney injury?

    <p>Oliguria or anuria</p> Signup and view all the answers

    Which type of shock is primarily caused by a severe allergic reaction leading to widespread vasodilation?

    <p>Anaphylactic Shock</p> Signup and view all the answers

    Which of the following is NOT considered a pre-renal cause of kidney injury?

    <p>Acute tubular necrosis</p> Signup and view all the answers

    What diagnostic test is used to distinguish between pre-renal and intrinsic causes of kidney injury?

    <p>Fractional excretion of sodium (FENa)</p> Signup and view all the answers

    Which condition is considered the leading cause of chronic kidney disease (CKD)?

    <p>Diabetes mellitus</p> Signup and view all the answers

    Which of the following symptoms is commonly associated with chronic kidney disease?

    <p>Anemia</p> Signup and view all the answers

    What systemic alteration is often associated with progressive loss of nephron function in chronic kidney disease?

    <p>Alterations in fluid and electrolyte balance</p> Signup and view all the answers

    What is a potential uremic symptom related to chronic kidney disease?

    <p>Nausea</p> Signup and view all the answers

    Which of the following diagnostic tests can provide a definitive diagnosis of kidney disease in certain cases?

    <p>Kidney biopsy</p> Signup and view all the answers

    Study Notes

    Peripheral Artery Disease

    • Etiology of peripheral artery disease: cigarette smoking and diabetes mellitus.
    • Clinical manifestation: gradual onset of symptoms.
    • Intermittent claudication:
      • calf pain
      • vague aching feeling
      • numbness
      • other signs:
        • weak or missing pulse
        • lower temperature in one leg compared to the other
        • limb color changes based on position
        • ischemic pain: muscle cramps in hips and legs during walking that stops when resting
        • necrosis: due to lack of oxygen
    • Diagnosis:
      • inspection
      • signs of chronic low-grade ischemia
      • palpation
      • Doppler ultrasound
      • ultrasound imaging
      • magnetic resonance imaging (MRI) arteriography
      • invasive contrast angiography
    • Treatment Goals:
      • decrease cardiovascular risk
      • reduce symptoms
      • antiplatelet agents
    • Treatment:
      • statins
      • walking: improves blood flow to legs, develops new, smaller vessels that can alleviate pain and discomfort caused by restricted blood supply to muscles
      • percutaneous or surgical vascular intervention

    Aneurysms

    • Local dilation or outpouching of a vessel wall or cardiac chamber.
    • Can occur in arteries and veins.
    • Most common site: aorta.

    True Aneurysms

    • Weakening of all three layers of the vessel wall.

    False Aneurysms

    • Extravascular hematoma that communicates with the intravascular space.

    • Aorta is most susceptible, especially the abdominal aorta:

      • Causes: atherosclerosis, hypertension
      • Can lead to aortic dissection or rupture.

    Types of Aneurysms

    • Berry: located in a bifurcated area, true aneurysm.

    • Fusiform: involves the entire circumference of the vessel, true aneurysm.

    • Saccular: extends over part of the circumference of the vessel, true aneurysm.

    • Dissecting: a tear in the vessel wall, false aneurysm.

    • Diagnosis of aneurysms: ultrasound, CT scan, MRI.

    Aortic Aneurysm

    • Involve any part of the aorta, true aneurysm.
    • Etiology: atherosclerosis, degeneration of the vessel media, hypertension.
    • More common in males over 50 who smoke.
    • Clinical Manifestation:
      • asymptomatic
      • substernal, back, and neck pain
      • hoarseness: indicated the aortic aneurysm could compress laryngeal nerve
      • difficulty swallowing: indicated the aneurysm could compress the esophagus
      • distended neck veins and edema of the face and neck: suggests superior vena cava syndrome

    Abdominal Aortic Aneurysm

    • Below the level of the renal artery

    • Involved in the bifurcation of the aorta and proximal end of the common iliac arteries

    • Palpable if larger than 4cm

    • Lower back pain radiating to the posterior aspect of the legs: pressure on nearby structures

    • Complications: rupture.

    • Diagnosis and Treatment of Abdominal Aortic Aneurysm:

      • ultrasonography
      • echocardiography
      • CT scan
      • MRI
      • surgical repair

    Disorders of The Pericardium

    • The pericardium surrounds the heart and roots of the great vessels and cushions the heart
    • Inflammation of the pericardium:

      • Acute Pericarditis: associated with severe chest pain.

      • Pericardial Effusion: accumulation of fluid slowly over time. Can progress to circulatory shock and cardiac arrest.

        • Symptoms: chest pain, shortness of breath, compression of nearby structures.
        • Pericardium stretches to accommodate bigger volumes of fluid without compressing the heart.
        • Tamponade:
          • Cardiac tamponade: compresses the heart.

      • Constrictive Pericarditis:

        • Develops due to viral infection, uremia, autoimmune diseases, or after trauma.

    Becks Triad

    • Low blood pressure, muffled heart sounds, and distended jugular veins.

    Cardiomyopathies

    • Disorders of the myocardium (heart muscle).

    • Can develop to compensate for other underlying diseases, or present as primary diseases.

    • Types:

      • Dilated Cardiomyopathy:
        • Dilated and impaired contraction of one or both ventricles.
        • Can be caused by: ischemia, valvular disease, infections, toxicity, or genetic predisposition.
      • Hypertrophic Cardiomyopathy:
        • Thickening of the heart muscle.
        • Usually autosomal dominant.
        • Leading cause of sudden cardiac death in young athletes.
          • Hypertrophic Obstructive Cardiomyopathy: asymmetric septal hypertrophic cardiomyopathy.
          • Hypertensive (Valvular) Hypertrophic Cardiomyopathy.
      • Restrictive Cardiomyopathy:
        • Walls of the ventricles become stiff but not necessarily thickened.
        • Impaired diastolic filling, preserved systolic function.
        • Causes: infiltrative, storage, or endomyocardial fibrosis.

    • Diagnosis: echocardiogram, MRI, genetic testing.

    Acute Kidney Injury (AKI)

    • Sudden decline in renal function.
    • Causes:
      • Pre-renal: Reduced blood flow to the kidneys (e.g., dehydration, heart failure, shock).
      • Intrinsic: Direct damage to the kidney tissue (e.g., acute tubular necrosis, glomerulonephritis).
      • Post-renal: Obstruction of urine flow (e.g., kidney stones, tumors).
    • Pathogenesis: Ischemia or nephrotoxic injury leading to cellular injury, inflammation, and necrosis of renal tubules.
    • Signs/Symptoms:
      • Oliguria or anuria
      • Edema
      • Hypertension
      • Electrolyte imbalances (e.g., hyperkalemia)
      • Nausea and vomiting
      • Fatigue and weakness

    Diagnostic Tests for AKI

    • Blood tests: serum creatinine, blood urea nitrogen (BUN) levels.
    • Urinalysis: looking for casts, protein, etc.
    • Imaging studies: ultrasound, CT scan.
    • Fractional excretion of sodium (FENa): distinguishes between pre-renal and intrinsic causes.

    Chronic Kidney Disease (CKD)

    • Progressive loss of nephron function.

    • Etiology:

      • Diabetes mellitus: leading cause.
      • Hypertension: common contributor.
      • Glomerulonephritis: autoimmune or inflammatory conditions.
      • Polycystic kidney disease: genetic disorders.
      • Chronic urinary tract obstruction.

    • Pathogenesis:

      • Reduced glomerular filtration rate (GFR).
      • Compensatory hyperfiltration in remaining nephrons leads to further injury over time.
      • Systemic effects: alterations in fluid, electrolyte, and acid-base balance.

    • Signs/Symptoms:

      • Fatigue and weakness
      • Anemia
      • Edema
      • Hypertension
      • Changes in urination patterns
      • Uremic symptoms:
        • Nausea
        • Itching
        • Confusion
        • Loss of appetite

    • Diagnosis:

      • Serum creatinine and eGFR
      • Urinalysis: looking for proteinuria, hematuria.
      • Imaging studies: ultrasound, CT scan.
      • Kidney biopsy (in certain cases).

    Mitral Stenosis vs. Mitral Regurgitation

    • Etiology:

      • Mitral Stenosis: rheumatic fever.
      • Mitral Regurgitation: degenerative changes.

    • Pathogenesis:

      • Mitral Stenosis: narrowing prevents normal blood flow.
      • Mitral Regurgitation: backflow of blood due to improper closure of the valve.

    • Signs/Symptoms:

      • Dyspnea
      • Fatigue
      • Palpitations

    • Diagnosis: echocardiogram, chest X-ray.

    Heart Failure

    • Etiology: CAD, hypertension, cardiomyopathy.
    • Pathogenesis: inability of the heart to pump blood effectively.
    • Signs/Symptoms:
      • Shortness of breath
      • Edema
      • Fatigue
    • Diagnosis: Echocardiogram, BNP levels, chest X-ray.

    Infective Endocarditis

    • Etiology: Bacterial or fungal infection.
    • Risk factors: heart valve abnormalities.
    • Pathogenesis: infection of the inner lining of the heart, often leading to vegetations (clumps of bacteria/fungi).
    • Signs/Symptoms:
      • Fever
      • Murmur
      • Petechiae
      • Splinter hemorrhages
    • Diagnosis: blood cultures, echocardiogram.

    Types of Shock

    • Cardiogenic Shock: pump failure (e.g., myocardial infarction).

    • Hypovolemic Shock: decreased blood volume (e.g., hemorrhage).

    • Neurogenic Shock: loss of vascular tone (e.g., spinal injury).

    • Anaphylactic Shock: severe allergic reaction leading to vasodilation.

    • Septic Shock: infection causing systemic inflammation and vasodilation.

    • Signs/Symptoms:

      • Hypotension
      • Tachycardia
      • Altered mental status
      • Diagnostic tests depend on type: blood tests, imaging, or cultures.

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    Description

    This quiz covers essential aspects of Peripheral Artery Disease, including its etiology, clinical manifestations, diagnostic methods, and treatment options. Test your knowledge on symptoms like intermittent claudication and the various diagnostic imaging techniques used. Understand the importance of managing cardiovascular risks to improve outcomes.

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