title: His electrocardiographic characterization of terminal arrhythmias of hemorrhagic shock in dogs.
abstract: Pulseless idioventricular rhythm is the agonal arrhythmia identified in three models of hemorrhagic shock used in this study. This arrhythmia is preceded by atrial and then junctional arrest demonstrated by His electrocardiography in all nine dogs studied. Two additional dogs were used as controls. Acid-base and electrolyte changes were not sufficient to cause the progressive failure of conduction system function seen so consistently. Patients receiving cardiopulmonary resuscitation who have profound bradycardia without pulses may have been in shock prior to cardiopulmonary arrest.
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000503:physiopathology* / Q000628:therapy; D002036:Bundle of His; D004285:Dogs; D004562:Electrocardiography; D006323:Heart Arrest / Q000517:prevention & control; D006329:Heart Conduction System / Q000503:physiopathology*; D012151:Resuscitation; D012771:Shock, Hemorrhagic / Q000150:complications / Q000503:physiopathology*