HCM
Also written as: HCM — Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy, a genetic heart disease characterized by abnormal thickening of the heart muscle.
Full Definition
Hypertrophic cardiomyopathy (HCM) is an inherited cardiac disorder characterized by inappropriate myocardial hypertrophy in the absence of an identifiable cause such as hypertension or aortic stenosis. The condition most commonly affects the interventricular septum but can involve any region of the left ventricle. HCM may cause left ventricular outflow tract obstruction, diastolic dysfunction, and increased risk of sudden cardiac death. Cardiac imaging plays a crucial role in diagnosis, with echocardiography typically showing wall thickness ≥15 mm, while cardiac MRI can detect more subtle forms and associated fibrosis.
Usage
Usage note: Specify whether obstructive (HOCM) or non-obstructive when relevant.
In Context
- "The septal thickness of 20 mm was diagnostic of HCM." — Echocardiography report
- "Family screening for HCM was recommended given the genetic nature of the disease." — Clinical consultation note