Mitral valve infective endocarditis complicating hypertrophic obstructive cardiomyopathy – still a current problem

Infective endocarditis in the course of hypertrophic cardiomyopathy is rare. Literature reports mainly contain descriptions of clinical cases, and therefore the risk assessment of infective endocarditis in patients with hypertrophic cardiomyopathy, both in the adults and children, is difficult. We present a case of infective endocarditis in a teenage boy with obstructive hypertrophic cardiomyopathy, in which the inflammatory process has damaged mitral valve, what required an urgent cardiac surgery and mitral valve replacement with a mechanical valve.