P-wave changes after induced supraventricular tachycardia of constant duration in the pig.
D000818:Animals; D003331:Coronary Vessels / Q000503:physiopathology; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006439:Hemodynamics; D010138:Pacemaker, Artificial; D013552:Swine; D013553:Swine Diseases / Q000503:physiopathology; D013610:Tachycardia / Q000503:physiopathology*; D013997:Time Factors