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随心电图的广泛开展,预激综合征病例报告逐渐增多,约占心电图检查0.1—3.1‰,其心电图表现有: 1.典型预激综合征(A型和B型):P—R<0.12秒,有预激波(△波),QRS时间延长0.12秒以上,P—J间期正常。 2.典型预激综合征变异型:(一) P—R0.12秒,△波小,QRS时间0.10秒。(二) P—R>0.12秒,有△波,ORS时间延长0.12秒以上。 3.Lown-Ganong-Levine综合征:P—R<0.12秒,QRS时间正常。本症多见于健康男性青年。预后良好,约60—70％有阵发性心动过速倾向。因顽固心动过速造成严重血液动力学改变死亡者不多,1968年前资料的
With the extensive development of ECG, WPW syndrome cases reported gradually increased, accounting for about 0.1-3.1 ‰ electrocardiogram, the ECG showed: 1. Typical WPW syndrome (A and B): P-R <0.12 seconds , With pre-shock (△ wave), QRS extended 0.12 seconds or more, P-J interval was normal. 2. Typical WPW syndrome variant: (a) P-R0.12 seconds, △ wave is small, QRS time 0.10 seconds. (B) P-R> 0.12 seconds, a wave, ORS longer than 0.12 seconds. 3. Down-Ganong-Levine syndrome: P-R <0.12 seconds, QRS time was normal. This disease more common in healthy young men. The prognosis is good, about 60-70% have paroxysmal tachycardia tendency. Due to stubborn tachycardia caused by severe hemodynamic changes were not many deaths, 1968 data