Pacing-induced increase in QT dispersion predicts sudden cardiac death following cardiac resynchronization therapy.

@article{Chalil2006PacinginducedII,
  title={Pacing-induced increase in QT dispersion predicts sudden cardiac death following cardiac resynchronization therapy.},
  author={Shajil Chalil and Zaheer Yousef and Sarkaw A Muyhaldeen and Russell E A Smith and Paul J. Jordan and Christopher Gibbs and F. H. Ram{\'i}rez Leyva},
  journal={Journal of the American College of Cardiology},
  year={2006},
  volume={47 12},
  pages={2486-92}
}
OBJECTIVES This study was designed to determine whether cardiac resynchronization therapy (CRT) by means of biventricular pacing (BiVP) alters the QT interval (QT(c)) and QT dispersion (QTD), and whether such changes relate to the risk of developing major arrhythmic events (MAE). BACKGROUND Prolonged QT(c) is associated with MAE. Left ventricular pacing and BiVP alter QT(c). METHODS A total of 75 patients with drug-resistant heart failure (New York Heart Association functional class III/IV… CONTINUE READING

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The effect of cardiac resynchronization on morbidity and mortality in heart failure

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