THE ECHOCARDIOGRAPHIC ASSESSMENT OF VENTRICULAR DYSSYNCHRONY – A POWERFUL TOOL TO SELECT THE CANDIDATES FOR CARDIAC RESYNCHRONIZATION THERAPY

摘要

Cardiac resynchronization therapy (CRT) is a relatively new therapy for the patients with symptomatic heart failure resulting from the systolic dysfunction. CRT is achieved by simultaneously pacing both the left and right ventricles. Biventricular pacing resynchronizes the timing of global left ventricular depolarization and improves mechanical contractility and mitral regurgitation.