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目的研究心电图对冠状动脉慢性完全闭塞病变(CTO)患者血运重建术后左室功能恢复的预测作用。方法选择2005年1月至2007年6月济南市第四人民医院和山东省立医院58例CTO患者用静息12导联心电图来评价Q波及QT离散度等参数,应用实时三维超声心动图(RT-3DE)评价左室局部室壁运动情况。结果在无病理性Q波(无Q波)的患者中,室壁运动记分指数(WMSI)由1.56±0.31降低至1.12±0.21(P<0.05),而存在病理性Q波(有Q波)的患者WMSI无明显变化(1.73±0.12和1.59±0.23,P>0.05)。结论对于血运重建的CTO患者,通过分析心电图的病理性Q波能可靠地预测局部室壁运动的恢复。
Objective To study the predictive value of electrocardiogram (ECG) on left ventricular function recovery after revascularization in patients with chronic coronary artery occlusive disease (CTO). METHODS: From January 2005 to June 2007, 58 patients with CTO in Jinan No.4 People’s Hospital and Shandong Provincial Hospital were evaluated by resting 12-lead electrocardiogram to evaluate Q wave and QT dispersion. Real-time three-dimensional echocardiography RT-3DE) to assess left ventricular regional wall motion. Results In patients without pathological Q waves, the WMSI decreased from 1.56 ± 0.31 to 1.12 ± 0.21 (P <0.05), while the pathological Q wave (with Q wave) Of patients had no significant changes in WMSI (1.73 ± 0.12 and 1.59 ± 0.23, P> 0.05). Conclusions For CTO patients undergoing revascularization, restoration of local wall motion can be reliably predicted by analyzing the pathologic Q wave of the electrocardiogram.