Response of relatively refractory canine myocardium to monophasic and biphasic shocks.

@article{Daubert1991ResponseOR,
  title={Response of relatively refractory canine myocardium to monophasic and biphasic shocks.},
  author={James P Daubert and D W Frazier and Patrick D. Wolf and Michael R. Franz and William M. Smith and Raymond E. Ideker},
  journal={Circulation},
  year={1991},
  volume={84 6},
  pages={2522-38}
}
BACKGROUND Certain biphasic waveforms defibrillate at lower energies than monophasic waveforms, although the mechanism is unknown. METHODS AND RESULTS The relative ability of monophasic and biphasic shocks to stimulate partially refractory myocardium was compared because defibrillation is thought to involve stimulating relatively refractory myocardial tissue. Shocks of 25-125 V were given during regularly paced rhythm in 11 open-chest dogs. Computerized recordings of shock potentials, and of… CONTINUE READING

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Short duration biphasic defibrillator waveforms inhibit refractory period responses ( abstract )

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