Cardiology: Signs, Symptoms and Diagnosis
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Questions and Answers

Which of the following signs or symptoms is commonly associated with right-sided hear failure?

  • Wheezing and prolonged exhalation
  • Severe chest pain radiating to the left arm
  • Sudden, sharp pain during inhalation
  • Ankle swelling (peripheral oedema) (correct)

A patient reports feeling faint. Which of the following cardiovascular issues could be the cause?

  • Hypertension
  • Increased blood volume
  • Bradycardia
  • Arrhythmia (correct)

What causes the additional heart sound known as a murmur?

  • Turbulent blood flow within the heart (correct)
  • Laminar blood flow through arterial vessels
  • Arterial vasoconstriction
  • Normal closing of the heart valves

In a patient with suspected heart failure, which physical sign indicates elevated jugular venous pressure (JVP)?

<p>Visible pulsation of the jugular vein with the patient reclined at a 45-degree angle (A)</p> Signup and view all the answers

Besides atherosclerosis, what other pathological process contributes to ischaemic heart disease?

<p>Thrombosis (C)</p> Signup and view all the answers

A patient experiencing acute coronary syndrome (ACS) typically does NOT respond to which medication?

<p>GTN (Glyceryl Trinitrate) (A)</p> Signup and view all the answers

What is the physiological rationale for using beta-blockers in the long-term management of Angina Pectoris?

<p>To reduce the heart rate and contractility, thereby decreasing myocardial oxygen demand. (B)</p> Signup and view all the answers

Which of the following is NOT typically used in the initial diagnosis of Atrial Fibrillation (AF)?

<p>Transoesophageal echocardiography (TOE) (D)</p> Signup and view all the answers

A patient with Atrial Fibrillation has a CHA2DS2-VASc score of 3. Which of the following factors could contribute to this score?

<p>Age 77, hypertension, and recent TIA (B)</p> Signup and view all the answers

Which medication strategy primarily focuses on controlling the ventricular rate in a patient with Atrial Fibrillation?

<p>Beta-blockers (e.g., Atenolol) (B)</p> Signup and view all the answers

What is the primary reason Atrial Fibrillation significantly increases the risk of stroke?

<p>Stagnation of blood in the atria leading to thrombus formation (C)</p> Signup and view all the answers

A patient with AF is deemed unsuitable for long-term anticoagulation therapy. Which of the following interventions would be MOST appropriate to reduce their risk of thromboembolic events?

<p>Left Atrial Appendage Closure (B)</p> Signup and view all the answers

What is the primary underlying cause of a myocardial infarction (MI)?

<p>Complete obstruction of coronary arteries. (B)</p> Signup and view all the answers

Which factor is least likely to predispose an individual to angina or atherosclerosis?

<p>Regular exercise. (C)</p> Signup and view all the answers

Which of the following is a modifiable risk factor for angina?

<p>Hyperlipidemia. (D)</p> Signup and view all the answers

Why is general anesthesia (GA) typically avoided in patients with a history of myocardial infarction (MI)?

<p>It increases the risk of another MI. (A)</p> Signup and view all the answers

What immediate action should be taken if a patient experiences chest pain that is not relieved by two sublingual administrations of GTN (glyceryl trinitrate) within 3 minutes?

<p>Summon medical help immediately. (B)</p> Signup and view all the answers

Following a myocardial infarction (MI), what is the significance of the residual deficit?

<p>It marks the severity of the original event, reflecting the amount of tissue damage. (D)</p> Signup and view all the answers

A patient who experienced a myocardial infarction (MI) 5 months ago requires elective dental treatment. According to established guidelines, what is the appropriate ASA (American Society of Anesthesiologists) classification for this patient?

<p>ASA IV (A)</p> Signup and view all the answers

Macrolide antibiotics such as erythromycin and clarithromycin should be used with caution in patients taking statins because of what potential interaction?

<p>Increased risk of rhabdomyolysis. (B)</p> Signup and view all the answers

What is the primary reason ECG is such an important test and should be conducted within 10 minutes of a patient being admitted to the hospital with a suspected MI?

<p>To quickly detect ST segment elevation and diagnose STEMI, the most serious form of heart attack, enabling prompt intervention. (D)</p> Signup and view all the answers

Which condition is characterized by a blockage of blood supply specifically to the brain?

<p>Stroke (B)</p> Signup and view all the answers

The acronym 'FAST' is used as a rapid assessment tool for which medical emergency?

<p>Stroke (B)</p> Signup and view all the answers

In the context of thromboembolism, which term describes a blockage occurring within an artery?

<p>Arterial Thromboembolism (B)</p> Signup and view all the answers

A pulmonary embolism directly compromises the function of which organ?

<p>Lungs (D)</p> Signup and view all the answers

What is the primary anatomical location of a Deep Vein Thrombosis (DVT)?

<p>Deep veins, typically in the leg (D)</p> Signup and view all the answers

Which of the following best describes the relationship between Deep Vein Thrombosis (DVT) and Pulmonary Embolism (PE)?

<p>DVT in the leg can lead to PE if the clot travels to the lungs. (C)</p> Signup and view all the answers

Which dental consideration is specifically mentioned for patients with a history of Deep Vein Thrombosis (DVT)?

<p>Avoiding treatments if on anticoagulant therapy without GP advice (A)</p> Signup and view all the answers

What is the underlying pathological process described as causing a stroke in the provided text?

<p>Rupture of an atheroma leading to blood vessel occlusion (D)</p> Signup and view all the answers

A patient presents with sudden onset breathlessness and chest pain. Considering thromboembolic conditions, which of the following is the most likely immediate concern?

<p>Pulmonary Embolism (D)</p> Signup and view all the answers

Why are Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) mentioned as a dental consideration for patients with DVT history?

<p>NSAIDs can interfere with anticoagulant medications. (C)</p> Signup and view all the answers

What is the primary action to take based on the 'TIME' component of the stroke recognition mnemonic?

<p>Call 999 immediately to seek emergency medical assistance. (A)</p> Signup and view all the answers

Which of the following is the most prevalent type of stroke?

<p>Ischemic (B)</p> Signup and view all the answers

A patient experiencing slurred speech and unilateral arm weakness is suspected of having a stroke. Why is a CT scan preferred over an MRI scan as the initial diagnostic tool?

<p>CT scans are more readily available and faster to perform. (B)</p> Signup and view all the answers

Which of the following best describes a Transient Ischemic Attack (TIA)?

<p>Temporary interruption of blood supply to the brain, resolving within 24 hours. (D)</p> Signup and view all the answers

Which modifiable risk factor contributes to the highest attributable risk for stroke?

<p>Hypertension (B)</p> Signup and view all the answers

Why is oxygen administered at 15 liters per minute (L/min) in the initial management of a suspected stroke?

<p>To ensure adequate oxygenation to the brain, even in the absence of hypoxia. (B)</p> Signup and view all the answers

Which of the following cardiac arrhythmias is most closely associated with an increased risk of embolic stroke?

<p>Atrial fibrillation (C)</p> Signup and view all the answers

A patient with a history of hypertension and atrial fibrillation presents with sudden onset of right-sided hemiparesis and aphasia. After initial stabilization, which diagnostic imaging modality should be prioritized and why?

<p>CT scan without contrast to rule out hemorrhage. (D)</p> Signup and view all the answers

Which of the following statements best describes the interplay between stroke risk factors and the underlying pathophysiology of stroke?

<p>Risk factors such as hypertension, diabetes, and smoking contribute to atherosclerosis and increased risk of thromboembolic events, while atrial fibrillation promotes cardiogenic embolism. (A)</p> Signup and view all the answers

Consider a patient presenting with acute stroke symptoms who is also taking an anticoagulant medication for a pre-existing condition. Which of the following represents the MOST critical and immediate consideration when interpreting the initial CT scan results?

<p>The presence of even a subtle amount of intracranial hemorrhage will rule out the use of intravenous thrombolytic therapy and prompt consideration of alternative strategies to manage blood pressure and prevent further bleeding. (B)</p> Signup and view all the answers

Which condition involves inflammation of the sac surrounding the heart?

<p>Pericarditis (D)</p> Signup and view all the answers

What is the underlying cause of angina?

<p>Insufficient oxygen supply to the heart muscle (A)</p> Signup and view all the answers

Complete blockage of a coronary artery directly results in which of the following conditions?

<p>Myocardial Infarction (D)</p> Signup and view all the answers

Which heart rhythm abnormality is characterized by completely disorganized electrical activity in the ventricles, leading to cardiac arrest?

<p>Ventricular Fibrillation (A)</p> Signup and view all the answers

Besides disturbances in heart rhythm, which condition is also a type of arrhythmia?

<p>Sinus Tachycardia (D)</p> Signup and view all the answers

A patient presents with a heart rate of 160 bpm originating from the lower heart chambers. What condition is most likely indicated?

<p>Ventricular Tachycardia (A)</p> Signup and view all the answers

Which of the following conditions is most likely to arise as a sequelae to untreated streptococcal infection?

<p>Rheumatic Fever (C)</p> Signup and view all the answers

Consider a patient with a history of rheumatic fever and progressive shortness of breath. Echocardiography reveals thickening and impaired function of the mitral valve. Which of the following cardiac conditions is the most likely underlying cause of the patient’s current presentation?

<p>Valvular Heart Disease (A)</p> Signup and view all the answers

Which of the following best describes the underlying cause of angina?

<p>Reduced blood flow and oxygen supply to the heart muscle. (C)</p> Signup and view all the answers

What is the most immediate danger associated with ventricular fibrillation?

<p>Sudden cardiac arrest due to ineffective cardiac output. (A)</p> Signup and view all the answers

Which of the following mechanisms is most closely associated with valvular heart disease?

<p>Dysfunctional heart valves impairing normal blood flow. (A)</p> Signup and view all the answers

What is the primary pathological mechanism behind myocardial infarction (MI)?

<p>Complete blockage of a coronary artery leading to heart muscle death. (B)</p> Signup and view all the answers

Which condition is an umbrella term encompassing both unstable angina and myocardial infarction?

<p>Acute Coronary Syndrome (B)</p> Signup and view all the answers

What is the primary characteristic of Atrial Fibrillation (AF)?

<p>An irregularly irregular rhythm where the atria quiver instead of contracting effectively. (A)</p> Signup and view all the answers

Which of the following best describes the sequence of events in rheumatic fever that leads to cardiac complications?

<p>Post-streptococcal inflammation affects the heart, joints, skin, and arteries. (D)</p> Signup and view all the answers

In the context of cardiac electrophysiology, what distinguishes Ventricular Tachycardia (VT) from Ventricular Fibrillation (VF)?

<p>VT involves a rapid and relatively organized rhythm from the ventricles, while VF is completely disorganized activity. (B)</p> Signup and view all the answers

Which of the following is an example of an abnormality that falls under the category of 'Arrhythmias'?

<p>Atrial Fibrillation (C)</p> Signup and view all the answers

If a patient presents with a heart rate exceeding 100 bpm due to anxiety before a dental procedure, and the ECG shows a regular rhythm originating from the sinoatrial node, how should this condition be classified?

<p>Sinus Tachycardia (C)</p> Signup and view all the answers

A patient with known Ischaemic Heart Disease (IHD) presents with worsening chest pain. What is the most important IMMEDIATE next step in their management?

<p>Administering sublingual glyceryl trinitrate (GTN) and monitoring their response. (C)</p> Signup and view all the answers

Which of the following best describes the mechanism by which statins reduce the risk of cardiovascular events in patients with Ischaemic Heart Disease (IHD)?

<p>Inhibiting cholesterol synthesis in the liver, leading to lower LDL cholesterol levels. (B)</p> Signup and view all the answers

Which of the following findings on an ECG would be MOST indicative of sinus tachycardia?

<p>Heart rate of 110 bpm with normal P waves preceding each QRS complex (C)</p> Signup and view all the answers

A patient experiences chest pain radiating to the left arm during exercise, relieved by rest. An ECG is normal. What is the MOST likely diagnosis?

<p>Stable angina pectoris (C)</p> Signup and view all the answers

What is the primary reason that aspirin is commonly prescribed for individuals diagnosed with Ischaemic Heart Disease (IHD)?

<p>To prevent the formation of blood clots by inhibiting platelet aggregation. (D)</p> Signup and view all the answers

A patient with a history of anxiety presents with sinus tachycardia. What is the MOST appropriate initial step in managing this patient?

<p>Address and manage the patient's anxiety with calming techniques or anxiolytics (C)</p> Signup and view all the answers

A patient is diagnosed with Atrial Fibrillation. What is the MOST critical long-term management strategy to mitigate a significant risk associated with this arrhythmia?

<p>Anticoagulation therapy with warfarin or a direct oral anticoagulant (DOAC) (D)</p> Signup and view all the answers

Which statement offers the most accurate comparison between stable and unstable angina?

<p>Stable angina is predictable and relieved by rest or medication; unstable angina is new, worsening, or occurs at rest. (D)</p> Signup and view all the answers

While examining a patient, you note an irregularly irregular pulse. Which of the following arrhythmias is MOST likely?

<p>Atrial fibrillation (D)</p> Signup and view all the answers

A patient with a history of angina is about to undergo a dental procedure. Which modification to their dental management is MOST appropriate?

<p>Ensure the patient has access to their glyceryl trinitrate (GTN) spray or tablets. (D)</p> Signup and view all the answers

A patient being treated for angina reports experiencing headaches after taking sublingual glyceryl trinitrate (GTN). What is the likely cause of this side effect?

<p>Vasodilation of cerebral blood vessels. (D)</p> Signup and view all the answers

A patient with known heart disease develops sustained ventricular tachycardia. Which of the following is the MOST concerning potential consequence of this arrhythmia?

<p>Progression to ventricular fibrillation and sudden cardiac death (B)</p> Signup and view all the answers

A patient in the intensive care unit develops ventricular tachycardia. Initial measures to stabilize the patient have been taken. Which medication is MOST likely to be administered intravenously as the first-line treatment for stable VT?

<p>Intravenous amiodarone (D)</p> Signup and view all the answers

What is the primary mechanism of action of beta-blockers in the long-term management of angina?

<p>Reducing heart rate and contractility, thereby decreasing myocardial oxygen demand. (C)</p> Signup and view all the answers

A patient is found unresponsive and pulseless. The ECG shows a chaotic rhythm with no discernible QRS complexes. Which arrhythmia is MOST likely present?

<p>Ventricular fibrillation (D)</p> Signup and view all the answers

During resuscitation of a patient in ventricular fibrillation, defibrillation is performed without success. What is the NEXT MOST appropriate step in advanced cardiac life support?

<p>Administer intravenous adrenaline (epinephrine) and consider amiodarone (D)</p> Signup and view all the answers

A patient experiences sudden cardiac arrest and is found to be in ventricular fibrillation. Which electrolyte imbalance is MOST likely to contribute to this arrhythmia?

<p>Severe hyperkalaemia (C)</p> Signup and view all the answers

Which factor is MOST important to consider when choosing a treatment plan for ventricular tachycardia?

<p>Patient is hemodynamically stable or unstable (C)</p> Signup and view all the answers

In older patients, valvular calcification is commonly caused by what?

<p>Aortic stenosis from degenerative changes (D)</p> Signup and view all the answers

A systolic murmur heard loudest at the apex and radiating to the axilla suggests:

<p>Mitral regurgitation (A)</p> Signup and view all the answers

In which of the following conditions is balloon valvuloplasty often utilized?

<p>Mitral stenosis (D)</p> Signup and view all the answers

A newly detected diastolic murmur in a patient could indicate:

<p>Mitral or aortic valve issue such as stenosis or regurgitation (D)</p> Signup and view all the answers

Why is good dental/oral hygiene important for patients with valvular heart disease?

<p>Reduce risk of infective endocarditis (B)</p> Signup and view all the answers

How long after a streptococcal throat infection does rheumatic fever typically develop?

<p>2–3 weeks (C)</p> Signup and view all the answers

Which of the following areas does rheumatic fever commonly affect?

<p>Heart, joints, skin (C)</p> Signup and view all the answers

What is a significant immunological finding in rheumatic fever?

<p>Antistreptolysin O titre elevation (D)</p> Signup and view all the answers

The cardiac manifestation of rheumatic fever can lead to:

<p>Rheumatic heart disease affecting valves (B)</p> Signup and view all the answers

What histological feature is associated with myocarditis in rheumatic fever?

<p>Aschoff bodies (B)</p> Signup and view all the answers

What is the most effective approach for preventing rheumatic fever?

<p>Immediate antibiotic treatment of streptococcal throat infections (A)</p> Signup and view all the answers

In the context of rheumatic fever, what does 'flitting' polyarthritis refer to?

<p>Arthritis migrating from joint to joint (C)</p> Signup and view all the answers

What is a common long-term complication of rheumatic fever affecting the heart?

<p>Chronic valvular stenosis/regurgitation (A)</p> Signup and view all the answers

Which of the following conditions is NOT typically caused by Rheumatic fever?

<p>Pheochromocytoma (B)</p> Signup and view all the answers

Rheumatic fever is an example of:

<p>Autoimmune cross-reactivity (B)</p> Signup and view all the answers

Which of the following activities is least likely to trigger angina pain?

<p>Being an elite athlete with no coronary artery disease (C)</p> Signup and view all the answers

In addition to GTN spray, what non-pharmacological measure is most appropriate for immediate relief of angina pain?

<p>Rest (B)</p> Signup and view all the answers

Which medication acts as a potassium channel activator and is sometimes prescribed for angina management?

<p>Nicorandil (C)</p> Signup and view all the answers

When angina symptoms change in their frequency, intensity, or duration, and no longer respond to typical treatments, how is this condition classified?

<p>Unstable angina (D)</p> Signup and view all the answers

Which lifestyle modification provides the most significant benefit for managing and improving outcomes in patients with angina?

<p>Engage in regular moderate physical activity (C)</p> Signup and view all the answers

How do nitrates alleviate angina symptoms?

<p>Dilating blood vessels and reducing preload (D)</p> Signup and view all the answers

During a dental procedure, if a patient experiences angina, what is the most appropriate initial action?

<p>Stop the procedure and allow the patient to rest (B)</p> Signup and view all the answers

A myocardial infarction is most directly caused by what condition?

<p>Complete blockage of a coronary artery (C)</p> Signup and view all the answers

What is the most crucial immediate action to undertake when a patient is suspected of having a myocardial infarction?

<p>Aspirin 300 mg, chewed (B)</p> Signup and view all the answers

In the context of myocardial infarction, what does 'STEMI' stand for?

<p>ST-Elevation Myocardial Infarction (D)</p> Signup and view all the answers

Which of the following interventions is a primary component of reperfusion therapy in the management of STEMI?

<p>Primary PCI (angioplasty) if available (B)</p> Signup and view all the answers

Which blood test is most commonly used to confirm myocardial damage, indicating a myocardial infarction?

<p>Troponin (B)</p> Signup and view all the answers

Following a myocardial infarction (MI), what combination of medications is typically prescribed for long-term management to prevent future cardiovascular events?

<p>Antiplatelet agents, statins, ACE inhibitors, and beta blockers (D)</p> Signup and view all the answers

A patient is diagnosed with Non-ST-Elevation Myocardial Infarction (NSTEMI). Which treatment approach is typically included in the initial management?

<p>Antithrombotics, nitrates, and possible angiography (B)</p> Signup and view all the answers

What is the fundamental pathological process that leads to most myocardial infarctions?

<p>Atherosclerotic plaque rupture leading to thrombosis (C)</p> Signup and view all the answers

Which of the following best describes the pain associated with acute pericarditis?

<p>Sharp and stabbing, exacerbated by inspiration and lying supine. (C)</p> Signup and view all the answers

A patient diagnosed with constrictive pericarditis is likely to exhibit which of the following physiological changes?

<p>Restriction in diastolic ventricular filling. (B)</p> Signup and view all the answers

Which condition is a potential complication of pericarditis, requiring close monitoring and potential intervention?

<p>Cardiac tamponade. (C)</p> Signup and view all the answers

What cardiovascular structure is primarily affected in infective endocarditis?

<p>The inner surface of the heart, including valves (endocardium). (B)</p> Signup and view all the answers

Which of the following bacterial groups is most frequently implicated in subacute infective endocarditis affecting previously damaged heart valves?

<p>Streptococcus viridans group. (C)</p> Signup and view all the answers

The presence of Janeway lesions suggests which condition?

<p>Infective endocarditis. (C)</p> Signup and view all the answers

What is the significance of echocardiography in diagnosing Infective Endocarditis (IE) according to the modified Duke criteria?

<p>It provides direct evidence of endocardial involvement. (D)</p> Signup and view all the answers

What is the most likely location of infective endocarditis in an intravenous drug user?

<p>Tricuspid valve. (A)</p> Signup and view all the answers

According to current NICE guidelines, when is antibiotic prophylaxis recommended for dental procedures to prevent infective endocarditis?

<p>Only for specific high-risk patients, not as a routine measure. (D)</p> Signup and view all the answers

Which statement accurately describes the pathophysiology of heart failure?

<p>The heart is unable to pump enough blood to meet the body's metabolic demands. (A)</p> Signup and view all the answers

In a patient with left-sided heart failure, which clinical manifestation is MOST likely to be observed?

<p>Pulmonary congestion. (C)</p> Signup and view all the answers

Which of the following medication classes have demonstrated improved mortality in patients with heart failure?

<p>ACE inhibitors and beta-blockers. (D)</p> Signup and view all the answers

What is the MOST likely effect of chronic fluid retention in a patient with heart failure?

<p>Oedema in the lower extremities and lungs. (D)</p> Signup and view all the answers

What is the primary purpose of an echocardiogram in the evaluation of a patient with heart failure?

<p>To evaluate ejection fraction and valve function. (C)</p> Signup and view all the answers

What is the most typical initial response to an electrolyte imbalance?

<p>Arrhythmias (A)</p> Signup and view all the answers

Flashcards

Chest Pain (Cardiac)

Chest pain, often due to ischaemia (reduced blood flow) in the heart; may radiate to both arms.

Breathlessness (Cardiac)

Difficulty breathing, often a sign of heart failure, but can also be respiratory in origin.

Ankle Swelling (Cardiac)

Swelling in the ankles, often indicative of right-sided heart failure.

Palpitations (Cardiac)

Irregular or forceful heartbeats that a patient is aware of, indicating a possible arrhythmia.

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Raised JVP

A sign of heart failure where pressure in the jugular vein is elevated due to blood backing up.

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Ischaemic Heart Disease

Heart disease caused by narrowing (atherosclerosis) or blockage (thrombosis) of coronary arteries.

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Acute Coronary Syndrome (ACS)

Acute Coronary Syndrome (ACS) includes unstable angina and myocardial infarction, indicating a sudden reduction in blood flow to the heart. Does not respond to GTN spray.

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Myocardial Infarction (MI)

Blockage of coronary arteries, leading to heart muscle damage.

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Myocardial Ischemia

Reduced blood flow to heart muscle, causing chest pain (angina).

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Angina/Atherosclerosis Risk Factors

Unhealthy diet, lack of exercise, smoking, age, alcohol, and family history.

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Modifiable Angina Risk Factors

Smoking, alcohol, hyperlipidemia, hypertension, and diabetes.

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MI Symptoms

Severe chest pain, shortness of breath, altered heart rate, low blood pressure.

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MI Management Steps

Call 999, make comfortable, give GTN & Oxygen, Aspirin 300mg.

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MI/Stroke Prevention

Aspirin, statins, ACE inhibitors.

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Thromboembolism

Blocked artery caused by a blood clot.

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Dental Considerations for MI Patients

NSAIDs impair beta blockers and ACE inhibitors; macrolides with statins increase muscle damage.

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What is thromboembolism?

Blockage of blood supply to a major organ, leading to loss of function.

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Venous thromboembolism

Occurs in veins, including DVT and PE.

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Deep Vein Thrombosis (DVT)

Thrombus (clot) in a deep vein, usually in the leg.

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Pulmonary Embolism (PE)

Blockage of the pulmonary artery, compromising lung function.

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Arterial thromboembolism

Occurs in arteries, causing ischemia, including stroke.

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Stroke

Blockage of blood supply to the brain.

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What is FAST?

Face, Arms, Speech, Time to call for help.

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DVT's Relationship to PE

Blood clot in a deep vein of the leg, a main cause of PE.

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DVT symptoms

Pain, swelling, tenderness, warm/red skin in the calf.

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Stroke Definition

Serious condition when brain's blood supply is cut off.

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Atrial Fibrillation (AF)

Irregular, often rapid heart rhythm starting in the atria.

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AF Risk Factors

Increased age, high blood pressure, alcohol, family history, obesity.

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AF Diagnosis

ECG, Echocardiogram, Chest X-ray, Blood tests (thyroid, anaemia).

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AF Complications

Heart failure and stroke.

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Ischaemic Stroke

Most common type of stroke (85%); caused by a blood clot blocking blood flow to the brain.

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Haemorrhagic Stroke

Stroke caused by a weakened blood vessel bursting and bleeding into the brain.

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Transient Ischaemic Attack (TIA)

Temporary interruption of blood supply to the brain, resolving within 24 hours.

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Stroke Risk Factors

Smoking, Hypertension, Obesity, High cholesterol, Diabetes, Increased alcohol, Atrial fibrillation, Increased age, Family history

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CT Scan for Stroke

Imaging technique used to differentiate between ischaemic and haemorrhagic stroke.

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MRI Scan for Stroke

Imaging method using magnetic radiowaves for stroke diagnosis.

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Stroke Management - ABCDE

Initial steps for managing a stroke patient.

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Arrhythmia

Irregular heartbeat; heart beats out of usual rhythm.

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Ischaemic Heart Disease (IHD)

Disease of reduced blood flow in the coronary arteries, commonly causing angina or myocardial infarction.

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Angina

Chest pain resulting from insufficient oxygen supply to the heart muscle, often on exertion.

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Valvular Heart Disease

Abnormalities of the heart valves (stenosis or regurgitation) that impair normal blood flow.

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Rheumatic Fever

Post‐streptococcal inflammatory condition that can affect heart, joints, skin, and arteries.

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Myocarditis

Inflammation of the heart muscle (myocardium), which can reduce the heart’s pumping ability.

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Pericarditis

Inflammation of the pericardium (the sac around the heart), often causing chest pain.

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Infective Endocarditis

Microbial infection of the heart's inner surface/valves.

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Heart Failure

Heart cannot pump enough to meet body's needs.

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Hypertension

High blood pressure above normal thresholds.

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Sinus Tachycardia

Fast, regular heart rhythm from sinus node (>100 bpm).

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Ventricular Tachycardia (VT)

Rapid rhythm from ventricles (often >140 bpm).

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Ventricular Fibrillation (VF)

Disorganized electrical activity; no cardiac output.

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Bradycardia

Slow heart rate.

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IHD Pathology

Most commonly caused by atherosclerosis, leading to reduced blood flow to the heart muscle.

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Modifiable IHD Risk Factors

Smoking, high cholesterol, and high blood pressure are modifiable factors that increase IHD risk.

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Non-Modifiable IHD Risk Factors

Age, gender, and family history.

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Smoking Cessation & IHD

Stopping smoking is critical because it damages blood vessels and increases clot risk.

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Statins in IHD treatment

Statins reduce cholesterol levels, preventing plaque buildup in arteries.

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Percutaneous Coronary Intervention (PCI)

PCI involves using a balloon and stent to open blocked coronary arteries.

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Stable Angina

Chest pain during exertion, relieved by rest or medication.

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Angina Pectoris Cause

Oxygen supply cannot meet the heart's demand.

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Unstable VT Treatment

Immediate shock to reset the heart rhythm

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Sinus Tachycardia Rate

Heart rate greater than 100 bpm originating from the sinus node.

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Sinus Tachycardia ECG

Normal P wave before each QRS complex.

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Sinus Tachycardia Causes

Hypovolemia, fever, anxiety

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Sinus Tachycardia Treatment

Addressing the underlying cause is the primary treatment

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Atrial Fibrillation Rhythm

Irregularly irregular rhythm.

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Atrial Fibrillation Risk

Increases the risk of stroke

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Digoxin Use in AF

Controls heart rate in atrial fibrillation.

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VT Rate

Rate above 140 bpm originating in the ventricles.

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VT Cause

Post-MI scar tissue

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Angina relief

Chest pain relieved by GTN spray and rest.

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Nicorandil

A potassium channel activator used in angina treatment.

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Angina Lifestyle Modification

Regular moderate physical activity is most beneficial.

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How Nitrates Reduce Angina

Dilating blood vessels and reducing preload.

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Dental Angina First Step

Stop the procedure and allow the patient to rest.

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Myocardial Infarction Cause

Complete blockage of a coronary artery.

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Earliest MI Measure

Aspirin 300mg, chewed.

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STEMI

ST-Elevation Myocardial Infarction.

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STEMI Reperfusion

Primary PCI (angioplasty) if available.

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MI Blood Marker

Troponin

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Post-MI Management

Antiplatelet agents, statins, ACE inhibitors and beta blockers.

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Unstable Angina Characterized

Occurrence at rest or minimal exertion, not relieved by usual measures.

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ACS Management Includes

Beta-blockers, antiplatelets, anticoagulants, nitrates.

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Mechanical valve replacement

Requires life-long anticoagulation to prevent blood clots.

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Common cause of valvular calcification

Aortic stenosis due to age-related degenerative changes in the valve.

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Systolic murmur at apex

Mitral regurgitation – a systolic murmur at the apex radiating to the axilla.

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Balloon valvuloplasty use

Mitral stenosis – balloon valvuloplasty widens the constricted valve opening.

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New diastolic murmur

Mitral or aortic valve issue such as stenosis or regurgitation.

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Good oral hygiene

Reduces the risk of infective endocarditis by limiting bacterial entry into the bloodstream.

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Rheumatic fever onset time

2–3 weeks after a streptococcal throat infection.

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Rheumatic fever affected areas

Heart, joints, and skin.

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Immunological finding in rheumatic fever

Antistreptolysin O (ASO) titre elevation.

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Cardiac manifestation of rheumatic fever

Rheumatic heart disease affecting the valves.

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Myocarditis cause

Aschoff bodies

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Prevent Rheumatic Fever

Immediate antibiotic treatment of streptococcal throat infections.

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Flitting polyarthritis

Arthritis migrating from joint to joint.

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Long-term complication of rheumatic fever

Chronic valvular stenosis/regurgitation.

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What is myocarditis?

Inflammation of the heart muscle.

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Pericarditis First-line treatment

NSAIDs or other anti-inflammatory drugs are often the first line of treatment.

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Constrictive Pericarditis effect

It leads to restriction of ventricular filling during diastole.

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Pericarditis complication

A potential complication is cardiac tamponade, where fluid compresses the heart.

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Rheumatic Fever Pericarditis treatment

It involves anti-rheumatic measures such as antibiotics and anti-inflammatory drugs.

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Pericarditis Pain

It is typically sharp and worsens on inspiration or when lying flat.

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Infective Endocarditis Target

Infective endocarditis primarily infects the endocardial surface and heart valves.

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Subacute IE organisms

The most common organisms are Streptococcus viridans group.

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HACEK and Endocarditis

The HACEK group organisms are typically associated with infective endocarditis.

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IE risk factor

A significant risk factor is having prosthetic heart valves.

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Osler's Nodes

Osler’s nodes are tender nodules found on fingers or toes.

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Janeway Lesions

Janeway lesions are painless erythematous lesions on the palms or soles.

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Duke Criteria Major Finding

Evidence of endocardial involvement from vegetation detected via echocardiogram.

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IV Drug Use and IE

IV drug use predisposes to right-sided infective endocarditis, particularly of the tricuspid valve.

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IE treatment

First-line management is long-term targeted antimicrobial therapy.

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IE prophylaxis

Antibiotic prophylaxis is not routinely recommended for most patients undergoing dental procedures; only specific high-risk cases.

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Study Notes

Symptoms of a Heart Attack

  • Chest Pain as a sign, can feel Tight, Dull or Heavy
  • Chest pain can spread to a patient's Arms, Neck, Jaw or Back
  • Pain is Triggered by Physical Exertion or Stress
  • Chest pain Stops within a Few Minutes of Resting
  • May experience Pain in the Lower Belly, resembling Indigestion
  • Can leave a patient Feeling very tired

Types of Angina

  • Stable Angina presents Angina upon Exertion
  • Can use a Minor LA Treatment if under control
  • Ensure GTN is accessible
  • More common, less serious
  • May need Prophylactic GTN if the pain occurs >1 week and lasts no longer than 10 minutes

Management of Angina

  • Consider if the risk of Angina is prophylactic, if the pain occurs >1 week
  • Unstable Angina presents Angina without Exertion, more serious and less common
  • Treatment is needed in 2nd Care and cardiologist reviewed
  • Requires Pre-operative GTN

Significant Risks

  • There is a Significant Risk of MI, 2nd review it and be approavedl by a cardiologist
  • Do not be given at General Surgery
  • Pre-Operative GTN needed and Avoid Epinephrine in LA

Angina & Exertions

  • Severity is gauged by Exertion required to provoke an Attack and medication
  • Efficacy of Medication to induce relief and can is a diagnosis

Coronary Interventions

  • Diagnosis of ANGINA is Primarily Clinical with GORD that mimics It.
  • Occasionally GORD mimics Angina
  • If ECG is normal, perform Coronary Angiography that can Exercise

Blood Tests:

  • Cardiac Troponin & C-Reactive Protein show no signs of being affected

Managing & Treating Angina

  • Treatment is in Attack and to treat use spray, on floor of mouth
  • Gives rise to Nitric, increases to muscle, rest a moment
  • Oxide causes blood to increase muscle
  • Regular medication is useful
  • Beta and calcium blockers
  • Can use Nicorandil: K channel activator
  • Oral Ulceration
  • Intervention stents by heart to arteries

Treating Attack

  • Treatment prevents Attack:
  • Lifestyle Changes
  • Beta-Blockers and Calcium Channel blockers
  • Vasodilatory Medication for Angina with possible ulceration
  • Cautions with induced oral ulcers
  • Treat patient with Analgesia and oxygen
  • Always consider their heart

Angina Medical Emergency

  • Symptoms consist of Shortness of Breath which is Fast and Slow Rate, has low bpp and altered state
  • Call 999 for quickly management by ABCDE
  • Have a GTN medication which may be under the tongue
  • Give Aspirin orally with oxygen

Myocardial Infraction or Coronary

  • Heart Attack or Coronary Thrombosis:
  • When that Damage is done it then trigger to a Thrombosis blockage
  • It can be similar but can be better with Radiating and breathing
  • It is described with a marker of events

Treatment of Coronary

  • The factor is to have had a heart Attack is the factor need treatment.
  • Take 6 antibiotics, but only when applicable

Heart Attacks:

  • A ruptue cases a clot- trigger Symptoms the same, however, if symptoms is not releif, must monitor A factor Leading causes factor Ihd factors

Procedure

  • Ideal time for an Elective Treatment is to wait 12 months, reduce rate
  • Avoid performing GA, or inducing Ml if can be avoided
  • Follow MI or dont cause it after

Symptoms after Procedure

  • Symptoms are: Prolonged & Severe, High heart rates, poor peripheral perfusion & altered state of mind

Medical Emergency

  • If history known, use treatment procedure , should can call and perform action

Treatment Procedure

  • To stop stroke or prevent

If have had stroke, can call and perform action

Agonal Procedure

  • Speech garbled. Can call 999 What causes blood?
  • Stroke what is to what

The risks of Stroke

  • There can be many factors: Diagnosis: Scan the brain
  • Diagnose types The symptoms
  • Facial
  • Arm
  • Time

Main types, stroke is what causes blood,

  • The symptoms
  • Facial
  • Arm
  • Time

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Description

Overview of cardiology focusing on the signs and symptoms of heart disease. Includes chest pain causes, breathlessness, ankle swelling, and palpitations. Also covers signs in a clothed patient, pulse characteristics and blood pressure.

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