Terapias de resincronización cardiaca en pacientes con insuficiencia cardiaca congestiva con fracción de eyección reducida post-estimulación ventricular derecha

Abstract

Heart failure causes a loss of cardiac capacity to maintain the ejection fraction of the left ventricle, a value that we require to determine the need in a patient for cardiac resynchronization therapy. Right ventricular pacing’s have usually been used, however, these are related to a loss of the functional and structural capacity of the heart due to non-physiological conduction used by right ventricular stimulation. Thus, other cardiac resynchronization therapies such as his bundle pacing or left ventricular pacing’s, due to their physiologically appropriate conduction, allow the patient with heart failure to have fewer complications in the future and less possibility of acquiring a pacemaker-induced cardiomyopathy. Therefore, the present study aimed to identify the best cardiac resynchronization therapy in patients with congestive heart failure with reduced ejection fraction after right ventricular pacing. Thus, determining that the best cardiac resynchronization therapy is left bundle branch pacing.