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1974—1983年,我们共发现尖端扭转型心房扑动6例,其中男2例,女4例,年龄25—75(44.6±2.5)岁。临床诊断:风湿性心脏病5例、冠心病1例。2例服用洋地黄。F波尖端扭转全部发现于V_1导联,肢导联未见同时伴有扭转。F波频率为300—400次/min,超过350次/min者5例,F-F间期互差≥0.03s者3例,<0.03s者3例。5例为同次记录显示F波扭转(图1),1例于相隔3天后F波极性相反(图2)。房室传导比例为3—8:1不等,除1例固定于4:1外,有5例传导比例处于变动状态,心室率在100次/min以下。有5例无固定F-R间期,QRS波群形态略有不同,除因呼吸或F波影响胸导联QRS波群形态外,尚有心室内差异性传导因素参与。
From 1974 to 1983, we found a total of 6 cases of torsades de pointes (2 males and 4 females), aged 25-75 (44.6 ± 2.5 years). Clinical diagnosis: 5 cases of rheumatic heart disease, coronary heart disease in 1 case. 2 cases took digitalis. F wave tip torsion all found in the V_1 lead, limb lead not seen at the same time accompanied by twisting. F wave frequency of 300-400 beats / min, more than 350 beats / min in 5 cases, F-F interval of each 0.03s were 3 cases, <0.03s in 3 cases. Five patients had the same F wave torsion (Fig. 1) for the same recording, and one had an opposite polarity of F wave after 3 days (Fig. 2). Atrioventricular conduction ratio ranging from 3-8: 1, except for 1 case fixed at 4: 1, 5 cases of conduction ratio in a state of change, ventricular rate of 100 times / min or less. There were 5 cases of non-fixed F-R interval, QRS complex slightly different shape, except for respiratory or F-wave effect on the morphology of the QRS complex of the thoracic lead, there are still ventricular differential conduction factors involved.