Myocardial dynamics, contractility, O2 consumption, and K+ balance during paired stimulation.
D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D006321:Heart / Q000502:physiology*; D006439:Hemodynamics; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009206:Myocardium / Q000378:metabolism*; D010101:Oxygen Consumption; D011188:Potassium / Q000378:metabolism*
D011188:Potassium