急性心肌梗死介入术后无复流患者血清补体4a水平和血小板聚集率的变化

目的 探讨急性心肌梗死(AMI)经皮冠状动脉介入治疗(PCI)术后无复流患者血清补体4a(C4a)水平和血小板聚集率的变化.方法 入选行PCI的AMI患者119例,其中介入术后冠状动脉无复流患者(无复流组)28例,冠状动脉恢复血流患者(复流组)91例和疑似冠心病而行冠状动脉造影检查结果正常者(对照组)30例.检测对照组冠状动脉造影前和无复流组、复流组介入术前30 min,术后即刻、30 min、1 h、2 h、半年的C4a水平和血小板聚集率,并观察其变化.结果 无复流组、复流组和对照组术前30 min C4a水平差异无统计学意义.无复流组和复流组术前30 min血小板聚集率均高于对照组(P均＜0.05).无复流组术后即刻、30min和1 h C4a水平和血小板聚集率均高于术前和术后2 h、半年,同时也均高于复流组术后即刻、30 min和1 h(P均＜0.05).复流组不同时间的C4a水平和血小板聚集率差异无统计学意义.无复流组术后即刻、30 min和1 h,C4a水平与血小板聚集率呈正相关(r值分别为0.91、0.79和0.60,P均＜0.01).结论 C4a水平和血小板聚集率在AMI患者PCI术后早期短暂升高.

Abstract：

Objective To observe serum C4a and platelet aggregation rates changes in acute myocardial infarction (AMI) patients before and after percutaneous coronary intervention (PCI)and association with the development of no-reflow phenomenon. Methods From June 2006 to August 2009, 119 AMI patients underwent PCI (28 cases of no-reflow group, 91 cases of reflow group)and 30 subjects with suspected coronary heart diseases and normal coronary angiography results (control group) were enrolled in this study. C4a and platelet aggregation rate were measured at 30 minutes before PCI, immediately after PCI,30 minutes,l hour,2 hour, and 6 months post PCI in AMI patients and at before coronary angiography in control subjects. Results The levels of serum C4a at 30 minutes prior to PCI in control, no-reflow, and reflow groups were similar(P ＞0. 05). Platelet aggregation rate at 30 minutes prior to PCI was significantly higher in no-reflow group and reflow group than in control group ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were significantly higher in no-reflow group at immediate, 30 minutes and 1 hour after PCI than at 30 minutes prior to PCI, two hours and 6 months after PCI ( all P ＜ 0. 05), and were significantly higher than in reflow group at immediate, 30 minutes and 1 hour after PCI ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were similar at different time points in reflow group ( all P ＞ 0. 05 ). The levels of C4a in no-reflow group at immediate, 30 minutes and 1 hour after PCI were positively correlated with platelet aggregation rates (r=0. 91,0. 79 ,0. 60 ,respectively ,all P＜0.01). Conclusion The transient increase on levels of C4a and platelet aggregation rate early post PCI are verified in no-reflow patients with AMI undergoing PCI.

Time course of C4a and platelet aggregation rates in no-reflow pntients with acute myocardial infarction undergoing percutaneous coronary intervention

Objective To observe serum C4a and platelet aggregation rates changes in acute myocardial infarction (AMI) patients before and after percutaneous coronary intervention (PCI)and association with the development of no-reflow phenomenon. Methods From June 2006 to August 2009, 119 AMI patients underwent PCI (28 cases of no-reflow group, 91 cases of reflow group)and 30 subjects with suspected coronary heart diseases and normal coronary angiography results (control group) were enrolled in this study. C4a and platelet aggregation rate were measured at 30 minutes before PCI, immediately after PCI,30 minutes,l hour,2 hour, and 6 months post PCI in AMI patients and at before coronary angiography in control subjects. Results The levels of serum C4a at 30 minutes prior to PCI in control, no-reflow, and reflow groups were similar(P ＞0. 05). Platelet aggregation rate at 30 minutes prior to PCI was significantly higher in no-reflow group and reflow group than in control group ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were significantly higher in no-reflow group at immediate, 30 minutes and 1 hour after PCI than at 30 minutes prior to PCI, two hours and 6 months after PCI ( all P ＜ 0. 05), and were significantly higher than in reflow group at immediate, 30 minutes and 1 hour after PCI ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were similar at different time points in reflow group ( all P ＞ 0. 05 ). The levels of C4a in no-reflow group at immediate, 30 minutes and 1 hour after PCI were positively correlated with platelet aggregation rates (r=0. 91,0. 79 ,0. 60 ,respectively ,all P＜0.01). Conclusion The transient increase on levels of C4a and platelet aggregation rate early post PCI are verified in no-reflow patients with AMI undergoing PCI.