摘要
目的探讨慢性冠状动脉完全闭塞病变患者血运重建（CRY）术前、术后的QT间期离散度（QTd）及校正QT间期离散度（QTcd）的变化。方法20例慢性冠状动脉完全闭塞病变患者行经皮冠状动脉介入（PCI）治疗和24例患者行冠状动脉搭桥术（CABG），利用标准同步12导联心电图，对术前、术后1d、术后1周及术后1个月的QTd及QTcd进行测量计算。结果慢性冠状动脉完全闭塞病变患者行PCI治疗与CABG术后的QTd及QTcd较术前均显著缩短（P〈0．01），两组QTd及QTcd缩短程度及时间差异无统计学意义（P〉0．05）。结论慢性冠状动脉完全闭塞病变仍存在存活冬眠心肌或顿抑心肌。血运重建后再灌注心肌可恢复电生理功能，且两种血运重建方法术后1个月内至少在改善心肌电活动程度和时间上是一致的。
objective To study the effect of coronary revascularization（CRV） on QT dispersion QTd and in patients with chronic coronary artery total occlusion （CTO）. Method Using electrocaxdiogram of 12 leads,changes of QT interval dispersion were observed and evaluated in 22 patients with CTO after percutaneous coronary intervention （PCI）therapy and 24 after coronary artery bypass grafting （CABG）. Result After PCI and CABG,QTd and QTcd minished markedly （P 〈0.01）, there were no significant differences in all postoperative groups （P 〉 0.05）, and there were no significant differences between PCI and CABG groups. Conclusions QTd CRV can minish QTd ,QTcd in patients with CTO, which PCI and CABG have an alike effect.Therefore revascu/arization can rescue viable myocadium and resume myocardial electrophysiological function in patients with CTO.
出处
《中国医师进修杂志（内科版）》
2007年第1期35-37,共3页
Chinese Journal of Postgraduates of Medicine
