Prevalence of QRS prolongation in a community hospital cohort of patients with heart failure and its relation to left ventricular systolic dysfunction.

@article{Sandhu2004PrevalenceOQ,
  title={Prevalence of QRS prolongation in a community hospital cohort of patients with heart failure and its relation to left ventricular systolic dysfunction.},
  author={Roopinder Kaur Sandhu and Robert C Bahler},
  journal={The American journal of cardiology},
  year={2004},
  volume={93 2},
  pages={244-6}
}
Adverse outcomes in heart failure occur more frequently with QRS prolongation. The results of our study have shown that 1/4 of community hospital patients with heart failure of sufficient severity leading to hospitalization have a QRS duration of > or =120 ms and that this degree of QRS prolongation is associated with substantially more severe left ventricular (LV) systolic dysfunction, LV dilation, and mitral regurgitation. 

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