Guidry O F, Glass D D
South Med J. 1977 Jan;70(1):62-4, 76. doi: 10.1097/00007611-197701000-00026.
Pulsus alternans is a pulse pattern in which the beats occur at constant intervals but with the regular alternation of the peak of the pressure pulse. Pulsus alternans frequently indicates heart failure due to disease of the left ventricle and will be seen with increasing frequency as more patients are invasively monitored. This report describes four patients who had pulsus alternans and the interventions that resulted in its disappearance. These cases would seem to support previous findings in experimental animals that the appearance of pulsus alternans may be related to myocardial ischemia. A review of the current concepts on the pathophysiology of pulsus alternans is included.
交替脉是一种脉搏形式，其搏动以恒定的间隔出现，但压力脉冲峰值有规律地交替。交替脉常提示左心室疾病导致的心力衰竭，随着越来越多的患者接受侵入性监测，其出现频率将会增加。本报告描述了4例有交替脉的患者以及导致其消失的干预措施。这些病例似乎支持了实验动物先前的研究结果，即交替脉的出现可能与心肌缺血有关。本文还包括对交替脉病理生理学当前概念的综述。
