Pérdida de resincronización biventricular: Causa inhabitual. Caso clínico

Cardiac resynchronization therapy is a non-pharmacologicaltreatment for patients with dilated cardiomyophaty and congestive heart failure. The success ofthis therapy depends of permanent biventricular stimulation. We report an 84 year-old man,with intermittent loss of biventricular pacemaker stimulation despite having adequate sensingand stimulation thresholds in the right atrium and both ventricles. The problem was solved aftercorrecting some programming parameters (Rev Med Chile 2006; 134: 887-92).(