Usefulness of prolonged QRS duration to identify high-risk ischemic cardiomyopathy patients with syncope and inducible ventricular tachycardia Academic Article uri icon

Overview

MeSH Major

  • Myocardial Ischemia
  • Syncope
  • Tachycardia, Ventricular
  • Ventricular Dysfunction, Left

abstract

  • We evaluated 61 consecutive patients who had coronary artery disease, decreased left ventricular function, and syncope and underwent implantation of a cardioverter-defibrillator because sustained ventricular tachycardia was inducible at electrophysiologic testing. During a follow-up of 3.0 +/- 1.8 years, 23 patients (38%) developed ventricular tachycardia. Prolonged QRS duration (>/=120 ms) was the only significant predictor of arrhythmia. The 1- and 2-year rates without ventricular arrhythmia were 82% and 77%, respectively, in patients whose QRS duration was <120 ms. In contrast, 1- and 2-year rates without ventricular arrhythmia were only 64% and 51%, respectively, in patients whose QRS duration was >/=120 ms (risk ratio 3.7, 95% confidence interval 1.4 to 9.8, p = 0.0092).

publication date

  • February 2005

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1016/j.amjcard.2004.09.040

PubMed ID

  • 15670551

Additional Document Info

start page

  • 391

end page

  • 4

volume

  • 95

number

  • 3