自 Lown 等报道正常人可以具有 PQ 间期缩短和 QRS 综合波正常的特征以来,有关报道日多。本文试图从心电图与临床表现将本症与预激(Wolff-Parkinson-White)综合征作一区分,并对其发生机理作一探讨。作者将200例 PQ 期间缩短综合征患 Since Lown et al reported that normal people can have the PQ interval shortening and the normal characteristics of QRS complex since the reported day more. This paper attempts to make a distinction between this syndrome and Wolff-Parkinson-White syndrome from electrocardiogram and clinical manifestations, and to discuss its mechanism. The author will shorten the syndrome of 200 cases of PQ patients