Determination of the longest intrapatient left ventricular electrical delay may predict acute hemodynamic improvement in patients after cardiac resynchronization therapy.

@article{Zanon2014DeterminationOT,
  title={Determination of the longest intrapatient left ventricular electrical delay may predict acute hemodynamic improvement in patients after cardiac resynchronization therapy.},
  author={Francesco Zanon and Enrico Baracca and Gianni Pastore and Chiara Fraccaro and Loris Roncon and Silvio Aggio and Franco Noventa and Alberto Mazza and Frits W. Prinzen},
  journal={Circulation. Arrhythmia and electrophysiology},
  year={2014},
  volume={7 3},
  pages={377-83}
}
BACKGROUND One of the reasons for patient nonresponse to cardiac resynchronization therapy is a suboptimal left ventricular (LV) pacing site. LV electric delay (Q-LV interval) has been indicated as a prognostic parameter of cardiac resynchronization therapy response. This study evaluates the LV delay for the optimization of the LV pacing site. METHODS AND RESULTS Thirty-two consecutive patients (23 men; mean age, 71±11 years; LV ejection fraction, 30±6%; 18 with ischemic cardiomyopathy; QRS… CONTINUE READING

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