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本文分析了原发性心室颤动16例,临床病谱为缺血型、心肌病、心动过缓、QT延长、低钾和药物影响等。室颤发作前心电图可见多种心电不稳表现,如QT间期延长、特早型室早、R落T上、或伴有QRS极性、时限、形态和振幅变化。部分病例在室颤发作前T波终末见一特殊波形,此波频繁出现,振幅增高时其后常出现室早、室速或室颤。其种种表现难以U波解释,可能是心肌延迟后除极电位振荡在体表心电图的反映,故称之为舒张期振荡波。
This article analyzes the 16 cases of primary ventricular fibrillation, clinical disease spectrum is ischemic, cardiomyopathy, bradycardia, QT prolongation, hypokalemia and drug effects. Atrial fibrillation before electrocardiogram showed a variety of ECG instability, such as QT prolongation, especially early premature ventricular contractions, R fall T, or with QRS polarity, timing, shape and amplitude changes. Some cases of T wave before the onset of ventricular fibrillation seen a special end of the waveform, the wave occurs frequently, the amplitude increases later often appear early, ventricular tachycardia or ventricular fibrillation. Its performance is difficult to explain the U wave, may be post-myocardial depolarization potential oscillations in the body surface ECG reflection, so called diastolic shock wave.