Influence of acute hemodynamic changes on the apex cardiogram in dogs.
D000818:Animals; D001013:Aorta, Thoracic; D001794:Blood Pressure; D002306:Cardiac Volume; D003911:Dextrans / Q000494:pharmacology; D004285:Dogs; D004562:Electrocardiography; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006329:Heart Conduction System / Q000502:physiology; D006439:Hemodynamics; D007545:Isoproterenol / Q000494:pharmacology; D007702:Kinetocardiography; D009638:Norepinephrine / Q000494:pharmacology; D014630:Vagus Nerve / Q000502:physiology; D016276:Ventricular Function
D003911:Dextrans; D007545:Isoproterenol; D009638:Norepinephrine