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心肌缺血或梗塞开始数分钟或数小时内,心室颤动是主要的并发症。为了对可能诱发心室颤动的因素进行评价,本文复习 Belfast 市冠心病救护车收治的48例医院外发生心室颤动患者的资料。方法:冠心病救护车到达时,立即将病人与示波器及双通道磁带录音机相连接,连续记录心电图并记录血压及给药时间,观察第一次见到病人时(最初)的心率、发生心室颤动前即刻的心率(在搬运时发生心室颤动者记录恰在搬动前的心率)以及期外收缩的频度及类型。用前一个正常心搏的 QT 间期除以室性早搏配对时间(RR′),得到室性早搏的早搏指数。早搏指数<1者代表 R 落在 T 波上现象。如≥1则称为长配对或晚期早搏。
Ventricular fibrillation is a major complication within minutes or hours of myocardial ischemia or infarction. In order to evaluate the possible causes of ventricular fibrillation, we review the data of 48 patients with ventricular fibrillation outside the hospital admitted to the Coronary Heart Disease Unit in Belfast. Methods: When ambulance arrived, the patient was connected to the oscilloscope and dual-channel tape recorder. The electrocardiogram was recorded continuously and the blood pressure and administration time were recorded. The heart rate at the first time when the patient was seen was observed and ventricular fibrillation Immediate heart rate (ventricular fibrillation during transport records just before moving the heart rate) and the frequency and type of extrasystoles. The pre-ventricular premature beats premature index was obtained by dividing the QT interval of a previous normal heartbeat by the pre-ventricular contralateral pairing time (RR ’). Premature beats index <1 represents R falls on the phenomenon of T wave. If ≥ 1 is called long matched pairs or advanced premature beats.