Hirai M
First Department of Internal Medicine, University of Nagoya School of Medicine.
Nihon Rinsho. 1995 Jan;53(1):106-12.
The presence of repolarization abnormalities and the effects of radiofrequency (RF) catheter ablation of the accessory pathway on QRST isointegral maps in patients with WPW syndrome were studied. Locations of the minimum in Rosenbaum types A and B differed significantly from normals. Before ablation, abnormally low QRST area (-2SD area) was located over the back and right mid-chest in types A and B WPW syndrome, respectively. Following ablation, the minimum gradually normalized and the -2SD area gradually disappeared over a week. Conclusions. 1) WPW syndrome is often associated with repolarization abnormalities; 2) RF ablation gradually normalizes the abnormalities; 3) ST-T abnormalities in 12-lead ECGs after ablation may be attributable to "cardiac memory."; and 4) QRST isointegral maps may provide useful information about repolarization properties before and after ablation in patients with WPW syndrome.
研究了预激综合征（WPW）患者复极异常的存在情况以及经导管射频（RF）消融旁路对QRST等积分图的影响。罗森鲍姆A型和B型的最小值位置与正常人有显著差异。消融前，A型和B型WPW综合征患者的异常低QRST面积（-2SD面积）分别位于背部和右胸中部。消融后，最小值逐渐恢复正常，-2SD面积在一周内逐渐消失。结论：1）WPW综合征常伴有复极异常；2）射频消融可使异常逐渐恢复正常；3）消融后12导联心电图中的ST-T异常可能归因于“心脏记忆”；4）QRST等积分图可能为WPW综合征患者消融前后的复极特性提供有用信息。
