Mechanisms causing sustained ventricular tachycardia with multiple QRS morphologies: results of mapping studies in the infarcted canine heart.

@article{Costeas1997MechanismsCS,
  title={Mechanisms causing sustained ventricular tachycardia with multiple QRS morphologies: results of mapping studies in the infarcted canine heart.},
  author={Constantinos A. Costeas and Nicholas S. Peters and Bernd Waldecker and Edward J. Ciaccio and Andrew L. Wit and James Coromilas},
  journal={Circulation},
  year={1997},
  volume={96 10},
  pages={3721-31}
}
BACKGROUND Sustained reentrant ventricular tachycardias (VTs) with different QRS morphologies have been observed to occur spontaneously and during programmed stimulation in human hearts. We determined mechanisms that can cause tachycardias with multiple morphologies in a canine model of myocardial infarction by mapping reentrant circuits. METHODS AND RESULTS Reentrant VT with multiple QRS morphologies was induced in 11 canine hearts with 4-day-old infarcts. Comparison of activation maps of… CONTINUE READING