[Ventricullar fibrillation in the acute stage of myocardial infarct. II. The characteristics of the heart functional changes in experimental myocardial infarct complicated by ventricullar fibrillation].
In acute experiments on dogs, occlusion of the anterior descending branch of the left coronary artery induced two-phase changes in the cardiac and stroke output (which increased at first and then decreased), drop in arterial pressure, and decrease in the rate of cardiac contractions. The experiments which terminated in ventricular fibrillation were characterized by a number of peculiarities: a more rapid replacement of the phase of primary increase in the cardiac and stroke output by the phase of their decrease; a sharper drop in arterial pressure as compared with that in experiments without fibrillation; marked decrease in cardiac activity which in experiments without fibrillation underwent two-phase changes, it increased a little at first and then decreased.
D000208:Acute Disease; D000818:Animals; D001794:Blood Pressure; D002302:Cardiac Output; D002306:Cardiac Volume; D004285:Dogs; D006321:Heart / Q000503:physiopathology*; D009203:Myocardial Infarction / Q000150:complications* / Q000503:physiopathology; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000209:etiology* / Q000503:physiopathology
Fibrilliatsiia zheludochkov v ostroĭ stadii infarkta miokarda. Soobshchenie II. Osobennosti izmeneniĭ funktsii serdtsa pri éksperimental'nom infarkte miokarda, oslozhnennom fibrilliatsieĭ zheludochkov.