Correlation between refractory periods and activation-recovery intervals from electrograms: effects of rate and adrenergic interventions.

@article{Millar1985CorrelationBR,
  title={Correlation between refractory periods and activation-recovery intervals from electrograms: effects of rate and adrenergic interventions.},
  author={Cassie Millar and F A Kralios and Robert L. Lux},
  journal={Circulation},
  year={1985},
  volume={72 6},
  pages={1372-9}
}
Unipolar electrograms from ventricular epicardium in dogs were analyzed for the timing of local excitation and repolarization with computer assistance. The most rapid decrease in voltage in the QRS (dV/dt min) was used to determine local excitation time, and the maximum rate of voltage increase (dV/dt max) near the peak of the T wave was used to time local repolarization. The difference between dV/dt min and dV/dt max, the activation-recovery interval, is theoretically related to the net effect… CONTINUE READING

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