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近几年我们收治了6例老年人尖端扭转型室速(Tdp)住院患者,病情介绍详见附表。讨论Horowitz 等提出典型的 Tdp 其心电图特征是:平均心室率200～250次/分,不规则的室性心动过速;QRS 波振幅和极性呈进行性变化,波形围绕等电线扭转;常可自行终止,但极易持续反复发作,偶而演变为形态规则的室性心动过速或室颤。本组6例都有 QT 和QT_c 延长,均符合以上心电图特征。Jackman等按照诱发 Tdp 的特征来区别并划分为两大组,本文例1～5均发生在心室率缓慢之时,其中有4例继发于房室传导阻滞之后,符
In recent years, we admitted 6 cases of elderly patients with Tdp hospitalization, the condition described in the schedule. Discussion Horowitz and other typical Tdp ECG characteristics are: the average ventricular rate of 200 to 250 beats / min, irregular ventricular tachycardia; QRS wave amplitude and polarity showed a progressive change, the waveform around the electric wire to reverse; often Self-termination, but very easy to continue recurrent, occasionally evolved into morphological rules of ventricular tachycardia or ventricular fibrillation. The group of 6 patients have QT and QT_c extended, are in line with the above ECG features. Jackman and so on in accordance with the characteristics of induced Tdp to distinguish and divided into two groups, this article 1 to 5 occurred at a slow ventricular rate, of which 4 cases of secondary to atrioventricular block, the symbol