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预激综合征患者伴发的室上速是最经典的折返性心动过速。具备折返的三要素时才能发生:①激动传导方向上存在双径路;②一条径路出现前传阻滞;③另一条径路
Worsening syndrome associated with supraventricular tachycardia is the most classic reentrant tachycardia. There are three elements of reentry can occur: ① There are dual channels in the direction of excited conduction; ② A block appears to block; ③ Another track