摘要
目的 研究经皮冠状动脉腔内成形术 (PTCA)及支架植入术对不稳定心绞痛的QT离散度 (QTd)和QTc离散度 (QTcd)的影响。方法 对 5 0例不稳定心绞痛的患者行PTCA及支架植入术 ,于PTCA术前、术后 2 4小时、1周作同步 12导心电图并测量QTd及QTcd ,并与 5 0例稳定劳力型心绞痛和 5 0例正常人对照。结果 不稳定心绞痛组与正常对照组间QTd及QTcd有极显著差异 (P <0 0 1) ,而稳定劳力型心绞痛组与正常对照组无显著差异 ,经PICA术后不稳定心绞痛患者QTd和QTcd下降 (P值均 <0 0 5 )。结论 成功的PTCA及支架植入术可降低不稳定心绞痛患者的QTd和QTcd 。
Objective: To study the effect of PTCA and stent implantation,on QT dispersion(QTd)and QTc dispersion(QTcd).Methods Fifty patients with UAP underwent successful PTCA and stent implantation,QTd and QTcd was defined on each ECG as the difference between the maximal and minimal measurements of QT interval or QTc interval.Maximal and minimal QT interval and QTc interval measured using 12-lead electrocardiography before and 24h and 1week after PTCA and stent implantation,RESULT ①QTd and QTcd in UAP group was longer than normal peson(P<0.01).②QTd and QTcd was significantly reduced with 24h,1 week after successful PTCA(P<0.01),RESULT The QTd and QTcd of UAP patients was increased.PTCA and stent implantation can reduced the QTd and QTcd in patient with UAP and may improve the patients prognosis.
出处
《海南医学》
CAS
2001年第12期9-10,共2页
Hainan Medical Journal
