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心室前向电力增大,近年来国内外均甚重视,因为这涉及左室內传导系统即中隔支传导阻滞的问题和与一些常见的心电向量现象的诊断和鉴别诊断问题。作者将本院10年来连续作的13,000例,共50,000余例次心电向量图作全面复习,有10例前向传导阻滞是在随访观察中出现的,或先有而后消失的,或间歇出现的,并进行长期随访观察。通过分析和随访,对目前国内外尚未澄清的和有争论的问题作了阐述和评论,并提出五项诊断标准:(1)向右前的起始向量小或向左前,(2)横面最大QRS向量位于左前,在10°~60°,(3)向前QRS面积占总面积的1/2以上,向左前向量>向后向量,(4)有向右后传导延缓<1毫伏
Ventricular forward power increases in recent years, both at home and abroad are very important, because it involves the left ventricular conduction system that is the septal branch block and the diagnosis and differential diagnosis with some common ECG phenomenon. The author reviewed 13,000 consecutive cases of more than 50,000 ECVTs conducted in our hospital over the past 10 years. Ten cases of anterior block were observed during follow-up observation, either before and after disappearance or intermittent Appeared, and long-term follow-up observation. Through analysis and follow-up, the current domestic and international issues that have not yet been clarified and controversial are elaborated and reviewed, and five diagnostic criteria are proposed: (1) the starting vector to the right is small or left, (2) the largest transverse The QRS vector is located on the left front at 10 ° to 60 °, (3) Forward QRS area is more than 1/2 of the total area, left front vector> backward vector, (4) Rightward posterior conduction delay is <1 mV