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Cardiovascular Diseases Lecture 3: Cardiomyopathy

18 Questions

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Cardiovascular Diseases Lecture 3: Cardiomyopathy

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Questions and Answers

What is the result of inflammation and rapid degeneration of myocardial fibers in cardiomyopathy?

Reduced ventricle size and improved heart function

Stagnation of blood in dilated heart chambers

Ventricle hypertrophy and reduction in blood pumping (correct)

Increased ventricle contractility

What is the characteristic of eccentric hypertrophy in dilated cardiomyopathy?

Increased heart rate

Reduced number of sarcomeres

Sarcomeres added in series (correct)

Sarcomeres added in parallel

What is the most common known cause of dilated cardiomyopathy?

Genetic mutations

Myocarditis (correct)

Alcohol consumption

Chronic cocaine use

What is the effect of decreased ventricle contractility in cardiomyopathy?

Reduced blood pumping Signup and view all the answers

What is the characteristic of wet Beriberi, a type of cardiomyopathy?

Edema and congestive heart failure Signup and view all the answers

What is the result of stagnation of blood in dilated heart chambers in cardiomyopathy?

Heart failure Signup and view all the answers

What is the primary cause of fluid accumulation in the tissues in cardiomyopathy?

The heart's inability to pump blood effectively Signup and view all the answers

Which of the following changes is specific to dilated cardiomyopathy?

None of the above Signup and view all the answers

What is the characteristic feature of hypertrophic cardiomyopathy?

Marked ventricular hypertrophy Signup and view all the answers

What is the usual ejection fraction in dilated cardiomyopathy?

55% Signup and view all the answers

What is the result of systolic dysfunction in dilated cardiomyopathy?

Decreased stroke volume Signup and view all the answers

What is the characteristic heart sound finding in dilated cardiomyopathy?

Left- and right-sided S3 and S4 heart sounds Signup and view all the answers

What is the main cause of outflow obstruction in obstructive hypertrophic cardiomyopathy?

Hypertrophy of the interventricular septum Signup and view all the answers

What is the result of muscle thickening in the left ventricle in hypertrophic cardiomyopathy?

Decreased compliance Signup and view all the answers

What is the typical location of obstruction to blood flow in hypertrophic cardiomyopathy?

Below the aortic valve Signup and view all the answers

What is the consequence of aberrant myofibers in the conduction system in hypertrophic cardiomyopathy?

Fatal arrhythmias Signup and view all the answers

What is the result of decreased preload in hypertrophic cardiomyopathy?

Murmur intensity increases Signup and view all the answers

What is the characteristic histological finding in hypertrophic cardiomyopathy?

Muscle fiber hypertrophy and interstitial fibrosis Signup and view all the answers