The most common type of cardiomyopathy is which?

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Multiple Choice

The most common type of cardiomyopathy is which?

Dilated cardiomyopathy is the most common form of cardiomyopathy. It features enlargement of the left ventricle with impaired systolic function, which leads to heart failure symptoms such as shortness of breath, fatigue, and edema. This prevalence comes from its diverse causes—genetic mutations, viral myocarditis, ischemic disease, alcohol or toxin exposure, and other insults—converging on a dilated, globally weakened ventricle. Hypertrophic cardiomyopathy, while the most common inherited form, is less common overall because it represents a specific genetic pattern of thickened walls and diastolic dysfunction rather than the broader spectrum of acquired or multifactorial causes that produce dilation. Restrictive cardiomyopathy is uncommon and presents with stiff ventricles and impaired filling. Arrhythmogenic cardiomyopathy is also relatively rare and typically involves fibrofatty replacement of myocardium with arrhythmias.

Dilated cardiomyopathy is the most common form of cardiomyopathy. It features enlargement of the left ventricle with impaired systolic function, which leads to heart failure symptoms such as shortness of breath, fatigue, and edema. This prevalence comes from its diverse causes—genetic mutations, viral myocarditis, ischemic disease, alcohol or toxin exposure, and other insults—converging on a dilated, globally weakened ventricle.

Hypertrophic cardiomyopathy, while the most common inherited form, is less common overall because it represents a specific genetic pattern of thickened walls and diastolic dysfunction rather than the broader spectrum of acquired or multifactorial causes that produce dilation. Restrictive cardiomyopathy is uncommon and presents with stiff ventricles and impaired filling. Arrhythmogenic cardiomyopathy is also relatively rare and typically involves fibrofatty replacement of myocardium with arrhythmias.

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