Nirei T, Kasanuki H, Ohnishi S, Tamaki A, Toyoshima Y, Hosoda S
Department of Cardiology, the Heart Institute of Japan, Tokyo Women's Medical College.
J Electrocardiol. 1997 Oct;30(4):323-9. doi: 10.1016/s0022-0736(97)80045-3.
This study used body surface mapping to evaluate the ventricular repolarization process in the absence of delta waves in 13 patients with the intermittent Wolff-Parkinson-White (WPW) syndrome. The findings were compared with data from 30 normal individuals and 50 patients with the overt WPW syndrome. The QRST isointegral maps of patients with the overt WPW syndrome exhibited abnormal areas and the QRST departure maps showed a peculiar distribution to each accessory pathway site. The QRST isointegral map exhibited abnormal areas in 11 of the 13 cases (85%) of the intermittent WPW syndrome in the absence of delta waves. In 8 of these 11 cases (73%), the distribution of the departure map resembled that in the overt WPW syndrome. These findings suggest that abnormal ventricular repolarization due to cardiac memory is present in patients with the intermittent WPW syndrome even in the absence of delta waves.
本研究采用体表标测技术，对13例间歇性预激综合征（Wolff-Parkinson-White syndrome，WPW）患者在无δ波时的心室复极过程进行评估。将研究结果与30名正常个体及50例显性WPW综合征患者的数据进行比较。显性WPW综合征患者的QRST等积分图显示存在异常区域，QRST离散图显示各旁道部位有特殊分布。在13例无δ波的间歇性WPW综合征患者中，11例（85%）的QRST等积分图显示存在异常区域。在这11例中的8例（73%），离散图的分布类似于显性WPW综合征。这些发现提示，即使在无δ波的情况下，间歇性WPW综合征患者也存在因心脏记忆导致的异常心室复极。
