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2018 年第 5 期 第 13 卷

急性心肌梗死后不同时机行非体外循环冠状动脉旁路移植术后心肌损伤的差异

Impact of different timing of off-pump coronary artery bypass grafting on postoperatiue myocardial injury in patients with acute myocardial infarction

作者:罗子娟柳克晔罗志强韩喆周晓东王洋

英文作者:

单位:071000保定,河北大学医学院(罗子娟);071000保定,河北大学附属医院心脏外科(柳克晔、罗志强、韩喆、周晓东、王洋)

英文单位:

关键词:急性心肌梗死;非体外循环冠状动脉旁路移植术;心肌损伤

英文关键词:

  • 摘要:
  • 目的    观察急性心肌梗死(AMI)后不同时机行非体外循环冠状动脉旁路移植术(OPCABG)后心肌损伤的差异。方法    选取2016年1月至2017年6月就诊于河北大学附属医院、首都医科大学附属北京朝阳医院、首都医科大学附属北京安贞医院的AMI、血流动力学相对稳定、术前心肌酶正常、行OPCABG的患者89例,据其AMI发生至手术的时间间隔分为A组(8~14 d,27例),B组(15~21 d,32例),C组(22~28 d,30例),分别于术前、第1支桥血管贯通1、3、6、12、24 h采集患者静脉血,检测以上时间点血液中心肌肌钙蛋白I(cTnI)、缺血修饰白蛋白(IMA)及心脏型脂肪酸结合蛋白(H-FABP)的水平,并结合左心室射血分数(LVEF)、围术期死亡率等临床观察指标综合分析,比较AMI后第2、3、4周内行OPCABG患者心肌损伤的差异。结果    3组患者第1支桥血管贯通6、12、24 h与术前cTnI水平比较差异有统计学意义(P<0.05);第1支桥血管贯通1、3、6 h与术前IMA水平比较差异有统计学意义(P<0.05);第1支桥血管贯通1、3、6、12 h与术前H-FABP水平比较差异有统计学意义[A组:(5.1±1.2)、(8.2±1.3)、(13.8±2.6)、(10.4±1.8)μg/L比(4.2±0.9)μg/L,B组:(5.0±1.0)、(7.6±0.7)、(13.3±1.0)、(9.9±0.9)μg/L比(4.4±0.9)μg/L,C组:(4.4±1.1)、(7.9±0.7)、(13.2±0.7)、(9.6±1.1)μg/L比(4.0±1.0)μg/L](P<0.05);同一时间点3组患者间的cTnI、IMA、H-FABP水平差异无统计学意义(P>0.05)。H-FABP与cTnI峰值呈正相关关系(r=0.281,P=0.031)。3组术前及术后LVEF比较差异无统计学意义(P>0.05)。3组围术期均无患者死亡。结论    血流动力学相对稳定、术前心肌酶正常的AMI患者,于AMI发生第2、3、4周内行OPCABG都是相对安全可靠的,其术后心肌损伤程度不会因所选手术时机的不同而产生较大差异。

  • 【Abstract】Objective    To observe the effect of different timing of off-pump coronary artery bypass grafting(OPCABG) on postoperatiue myocardial injury in patients with acute myocardial infarction(AMI). Methods    A total of 89 AMI patients with relatively stable hemodynamics and normal myocardial enzyme beofore operation undergoing OPCABG from January 2016 to June 2017 in Affiliated Hospital of Hebei University, Beijing Chaoyang Hospital and Beijing Anzhen Hospital, Capital Medical University were enrolled. According to the infarction onset to operation time, the patients were divided into group A(8-14 d, n=27), group B(15-21 d, n=32) and group C(22-28 d, n=30). Venous blood was sampled before operation and 1, 3, 6, 12, 24 h after the first graft was perfused to test levels of cardiac troponin I(cTnI), ischemia-modified albumin(IMA) and heart-type fatty acid binding protein(H-FABP). Changes of left ventricular ejection fraction(LVEF) and perioperative mortality were observed. Results    In 3 groups, cTnI level 6, 12, 24 h after the first graft perfusion showed significant differences compared to that before operation(P<0.05); IMA level 1, 3, 6 h after the first graft perfusion showed significant differences compared to that before operation(P<0.05); H-FABP level 1, 3, 6, 12 h after the first graft perfusion showed significant differences compared to that before operation[group A:(5.1±1.2),(8.2±1.3),(13.8±2.6),(10.4±1.8)μg/L vs(4.2±0.9)μg/L; group B:(5.0±1.0),(7.6±0.7),(13.3±1.0),(9.9±0.9)μg/L vs (4.4±0.9)μg/L; group C:(4.4±1.1),(7.9±0.7),(13.2±0.7),(9.6±1.1)μg/L vs (4.0±1.0)μg/L](P<0.05). There were no significant differences of cTnI, IMA, H-FABP levels among 3 groups(P>0.05). H-FABP level was positively correlated with cTnI peak value(r=0.281, P=0.031). LVEF showed no significant difference before and after operation(P>0.05). No patients died during perioperative period. Conclusion    It is relatively safe for AMI patients with relatively stable hemodynamics and normal myocardial enzyme beofore operation to have OPCABG in 2, 3 or 4 weeks after infarction onset; the operation timing has no significant impact on postoperative myocardial injury.

    【Key words】Acute myocardial infarction;Off-pump coronary artery bypass;Myocardial injury


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