American heart journal
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American heart journal · Jun 2002
Randomized Controlled Trial Clinical TrialQRS duration and mortality in patients with congestive heart failure.
It has been suggested that prolongation of the QRS duration (>120 ms) is an independent risk factor for mortality in patients with cardiomyopathy. The purpose of this study was to examine the association between QRS duration and survival in patients with heart failure. ⋯ QRS prolongation is an independent predictor of both increased total mortality and sudden death in patients with heart failure.