Objective To examine long term efficacy of percutaneous transluminal coronary angioplasty (PTCA),coronary stenting and to assess the factors affecting its efficacy Methods A total of 790 patients who underwent su...Objective To examine long term efficacy of percutaneous transluminal coronary angioplasty (PTCA),coronary stenting and to assess the factors affecting its efficacy Methods A total of 790 patients who underwent successful PTCA and PTCA+stent in this hospital were followed by direct interview or letter The rate of follow up was 84 2% and the period of follow up was 0 9-12 7 (3 5±2 4) years Results During follow up, 4 (0 5%) patients died, 22 (2 8%) had nonfatal acute myocardial infarction, 10 (1 3%) had coronary artery bypass surgery, and 98 (12 4%) had repeat PTCA The rate of recurrent angina pectoris was 31 1% The cardiac event free survival rate calculated by the Kaplan Meier method was 88 2% at 1 year and 80 6% at 12 7 years Cox regression analysis showed that there was a positive correlation between AMI history, stent implantation and the risk of cardiac events, and there was a negative correlation between the number of diseased arteries and the risk of cardiac events Compared to the PTCA group, patients with PTCA+stent had significantly lower rates of total cardiac events Conclusion The long term efficacy of PTCA, especially PTCA + stent in Chinese patients was very satisfactory, suggesting that PTCA+stent therapy should be the major treatment for revascularization in patients with coronary heart disease展开更多
文摘目的:探讨急性心肌梗死(acutermyocardialinfarction,AMI)行直接经皮冠状动脉腔内成形(primarypercutaneoustranslu-minal coronary angioplasty,P-PTCA)前后血小板功能的动态变化,为临床抗血小板治疗提供依据。方法:AMI发病6小时以内成功的进行P-PTCA的患者33例,按PTCA前、后不同时间抽取周围静脉血,用流式细胞仪测定每个病人不同时期的PAC-1和CD61b。以年龄、性别相当的健康体检者10例为对照。结果:33例AMI患者P-PTCA前PAC-1为(1.82±0.73),显著高于正常对照(P<0.01);之后开始下降,至PTCA后8小时为(1.35±0.66),明显低于PTCA前(P<0.01);P-PTCA后24小时PAC-1又升高至(2.28±0.87),显著高于PTCA后8小时(P<0.01);而后PAC-1逐渐下降,至168小时趋于正常。CD61b在P-PTCA前与正常对照无差别(P>0.05),P-PTCA后各不同时间的CD61b相比也无差别(P>0.05)。结论:AMI患者行P-PTCA,在早期开通梗死相关动脉(infarction related artery,IRA)的同时激活了血小板,所以P-PTCA后需要更有效的抗血小板治疗。
文摘Objective To examine long term efficacy of percutaneous transluminal coronary angioplasty (PTCA),coronary stenting and to assess the factors affecting its efficacy Methods A total of 790 patients who underwent successful PTCA and PTCA+stent in this hospital were followed by direct interview or letter The rate of follow up was 84 2% and the period of follow up was 0 9-12 7 (3 5±2 4) years Results During follow up, 4 (0 5%) patients died, 22 (2 8%) had nonfatal acute myocardial infarction, 10 (1 3%) had coronary artery bypass surgery, and 98 (12 4%) had repeat PTCA The rate of recurrent angina pectoris was 31 1% The cardiac event free survival rate calculated by the Kaplan Meier method was 88 2% at 1 year and 80 6% at 12 7 years Cox regression analysis showed that there was a positive correlation between AMI history, stent implantation and the risk of cardiac events, and there was a negative correlation between the number of diseased arteries and the risk of cardiac events Compared to the PTCA group, patients with PTCA+stent had significantly lower rates of total cardiac events Conclusion The long term efficacy of PTCA, especially PTCA + stent in Chinese patients was very satisfactory, suggesting that PTCA+stent therapy should be the major treatment for revascularization in patients with coronary heart disease
