摘要
目的:探讨行PTCA+支架治疗对冠心病患者QTc离散度(QTcd)是否有影响。方法:对60例成功地行单支或多支PTCA+支架治疗患者术前及术后24h分别作12导联心电图测量QTc,并计算出QTcd。结果:60例患者中,术后QTcd改善44例,恶化6例,无变化10例,术前QTcd为52±18ms,术后QTcd为43±17ms,提示QTcd明显降低(P<0.01)。结论:有效的PTCA+支架治疗可显著降低冠心病的QTcd,QTcd改善可能是由于PTCA+支架术后增加心肌灌注,从而降低心律失常的危险性。
Objective: To investigate the effect of PTCA + stent on QTc dispersion (QTcd) in patients with coronary artery disease. Methods: A standard 12 - lead electrocardiogram was routinely obtained before and 24 hours after successful PTCA + stent in 60 patients with coronary artery disease. QTc was measured, and QTcd was calculated. Results: Of the 60 patients, QTcd was improved in 44 patients, worsen in 6 patients, and unchanged in 10 patients. QTcd significantly decreased from 52 ± 18 ms before PTCA + stent to 43 ± 17 ms 24 hours after PTCA + stent (P < 0. 01 ). Conclusion: Successful PTCA + stent significantly reduced QTcd. Decreased QTcd may indicate improvement in myocardial perfusion caused by PTCA + stent and may be inherently beneficial by reducing the propensity for arrhythmias.
出处
《中国临床医学》
2000年第4期375-376,共2页
Chinese Journal of Clinical Medicine