经皮腔内冠状动脉成形术治疗顽固性心绞痛疗效评价

目的：观察顽固性心绞痛（RUAP）患者的择期与立即经皮腔内冠状动脉成形术（PTCA）效果及安全性。方法：27例RUAP患者，11例内科药物稳定症状后PTCA，16例立即PTCA，观察术后即刻、6个月内症状复发情况和心电图改变。结果：手术成功率100%，即刻症状缓解率96.3%，病情稳定后择期PTCA的6个月内症状复发率（18.2%），明显低于立刻PTCA者的复发率（37.5%）。结论：对RUAP患者行PTCA疗效肯定，但应昼在内科治疗待病情平稳后再PTCA，对不能控制症状者应立即行PTCA。

Effects of percutaneous transluminal coronary angioplasty in refractory unstable angina pectoris

Objective To evaluate the effects of time selection and immediate percutneous transluminal coronary angioplasty (PTCA) in refractory unstable angina pectoris.Methods PTCA was performed in 27 RUAP patients,among which 16 underwent emergency PTCA and 11 patients experienced PTCA after controlling with medicine.ECG and recurrence of symptoms were observed immediately and 6 months after PTCA.Results The procedural success rate was 100%.The immediate relieving rate was 96.3%.The recurrence rate of 11 cases within 6 months (18.2%)was significantly lower than that of 16 cases(37.5%).Conclustion The PTCA for RUAP is relatively safe and effective,but PTCA should be performed after situation is unchanged by use of medicine and PTCA shoulde be carried out immediately if the symptoms can not be controlled by medicine.