Which of the following is not listed as a cause of restrictive cardiomyopathy?

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Multiple Choice

Which of the following is not listed as a cause of restrictive cardiomyopathy?

Restrictive cardiomyopathy results from the stiffening of the ventricles due to infiltrative or fibrotic processes that impair diastolic filling. Amyloidosis depositions make the myocardium rigid, hemochromatosis transfers iron into the heart causing stiffness, and sarcoidosis can infiltrate with granulomas that limit filling. Hypertrophic cardiomyopathy, on the other hand, is defined by thickened, disorganized myocardium that causes diastolic dysfunction through reduced chamber size and outflow obstruction, not by infiltration or fibrosis of the ventricles. While both conditions can have diastolic dysfunction, hypertrophic cardiomyopathy is not listed as a cause of restrictive physiology, making it the correct choice.

Restrictive cardiomyopathy results from the stiffening of the ventricles due to infiltrative or fibrotic processes that impair diastolic filling. Amyloidosis depositions make the myocardium rigid, hemochromatosis transfers iron into the heart causing stiffness, and sarcoidosis can infiltrate with granulomas that limit filling. Hypertrophic cardiomyopathy, on the other hand, is defined by thickened, disorganized myocardium that causes diastolic dysfunction through reduced chamber size and outflow obstruction, not by infiltration or fibrosis of the ventricles. While both conditions can have diastolic dysfunction, hypertrophic cardiomyopathy is not listed as a cause of restrictive physiology, making it the correct choice.

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