Measurement of myocardial excitability in cardiac stimulation.
D000818:Animals; D004285:Dogs; D004553:Electric Conductivity; D004558:Electric Stimulation; D004567:Electrodes, Implanted; D004594:Electrophysiology; D006321:Heart / Q000502:physiology*; D006439:Hemodynamics; D008564:Membrane Potentials; D008722:Methods