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由体表心电图区别室性心动过速(室速)与伴有室内差异性传导的室上性心动过速(室上速伴差传)是临床工作中常遇到的难题,因为直接关系到治疗和预后,故具有重要意义。作者首先对以往提出的心电图诊断标准进行前瞻性分析(如心电图存在电轴左偏,房室分离QRS>0.14秒,胸导联QRS类似左或右束支阻滞形态时提示室速),结果证明上述使用标准敏感性及特异性很差。在以上分析的基础上,作者参照Kindwall等的观点,提出一个新的阶梯式诊断方法。通过对554例
The difference between ventricular tachycardia (ventricular tachycardia) and supraventricular tachycardia (supraventricular tachycardia) associated with intra-ventricular DIF by surface ECG is a common problem in clinical practice because of the direct relationship between treatment And prognosis, it is of great significance. The authors first conducted a prospective analysis of previously proposed diagnostic criteria for ECG (eg ECG left axis deviation, atrioventricular separation QRS> 0.14 second, chest lead QRS similar left or right bundle branch block morphology prompted VT), the results This demonstrates the use of standard sensitivity and specificity are poor. Based on the above analysis, the author proposes a new stepwise diagnostic method with reference to the view of Kindwall et al. Through to 554 cases