论文部分内容阅读
阵发性室上性心动过速通常是由房室结内的折返激动所引起,然而亦可能是预激综合征的一种表现。但如在窦性节律时心电图上没有δ波,这种病因学往往被忽视。近来,一些报道证明房室旁路可以仅能传导逆行或室房方向的冲动,所以在窦性节律时心电图上并无δ波。本文报道11例阵发性室上性心动过速,窦性节律时没有预激综合征的QRS改变,而电生理研究证明路参与心动过速的机理。11例中有8例经外科手术切断旁路或希氏束而获得治疗成功。 11例中6例女性,5例男性。心动过速(心悸)的症状平均持续15年。只有3例在20岁后开始出现症状。3例有二尖瓣异常,旁路都位于二尖瓣环
Paroxysmal supraventricular tachycardia is usually caused by atrioventricular reentrant activation, but may also be a manifestation of WPW syndrome. However, if there is no δ-wave on the ECG during sinus rhythm, this etiology is often overlooked. Recently, some reports have demonstrated that atrioventricular bypass can only conduct retrograde or ambulatory impulses, so there is no δ wave on the electrocardiogram during sinus rhythm. This article reports 11 cases of paroxysmal supraventricular tachycardia, sinus rhythm without pre-excitation syndrome QRS changes, and electrophysiological studies to prove the road to participate in the mechanism of tachycardia. Eight of 11 patients were successfully treated by surgical bypass or by His bundle. Six of 11 women were women and 5 were men. Tachycardia (palpitations) symptoms last on average 15 years. Only 3 cases started to develop symptoms after age 20. Three patients had mitral valve anomalies and the bypass was located in the mitral valve annulus