The culprit in one of every three cases of sudden cardiac death in young athletes is a silent condition called hypertrophic cardiomyopathy (HCM), characterized by____________

Answer: marked ventricular hypertrophy with diastolic dysfunction but without increased afterload (eg, due to valvular aortic stenosis, coarctation of the aorta, systemic hypertension).

Step-by-step explanation: