In patients with left ventricular (LV) dysfunction, RV pacing can worsen ... and they were then randomized in a 1:1 fashion to biventricular pacing or RV pacing. A total of 809 patients were ...

whereas with nonischemic cardiomyopathies biventricular dysfunction is more common. Normal RV function has previously been identified as a predictor of greater benefit from β-blocker therapy in ...