Randomised controlled trial of delayed versus undelayed bivalirudin in patients with acute myocardial infarction undergoing primary percutaneous coronary intervention
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摘要:
目的 评价急性心肌梗死(AMI)患者接受经皮冠状动脉介入治疗(PCI)时无延时比伐芦定联合仅冠脉内替罗非班方案的疗效和安全性。 方法 选取2020年4月—2021年3月蚌埠市第二人民医院心内科收治的150例AMI患者,采用随机数字表法随机分为2组: 试验组(无延时组,75例)和对照组(延时组,75例)。观察2组患者术后TIMI血流分级(TFG)及校正的TIMI血流帧数计数(cTFC),术后90 min心电图ST段回落(STR)情况,术后第7天心功能指标,术后30 d内所有出血事件及术后30 d主要不良心血管事件(MACE)。 结果 2组TFG、cTFC、术后90 min心电图STR(Z=0.524,P=0.770)、MACE(1.3% vs. 0,P=0.999)、左心室射血分数[(49.5±6.6) vs. (50.6±5.7),t=-1.092,P=0.276]、左心室舒张末期内径[(50.0±8.9) mm vs. (51.2±7.6) mm,t=-0.888,P=0.376]及室壁运动异常(86.7% vs. 90.1%,χ2=0.597,P=0.440)比较,差异均无统计学意义。试验组30 d内出血事件显著少于对照组,差异有统计学意义(5.3% vs. 18.7%,χ2=6.221,P=0.035)。 结论 对于急性心肌梗死接受直接PCI的患者,无延时比伐芦定联合仅冠脉内替罗非班方案,疗效确定且具有更佳的安全性,是临床实践中可供选择的治疗方案。 -
关键词:
- 比伐芦定 /
- 替罗非班 /
- 经皮冠状动脉介入治疗 /
- 急性心肌梗死
Abstract:Objective To evaluate the efficacy and safety of undelayed bivalirudin combined with intracoronary tirofiban only during primary percutaneous coronary intervention (PCI) in patients with acute elevation myocardial infarction (AMI). Methods A total of 150 patients with AMI admitted to the Department of Cardiology, Bengbu Second People's Hospital from April 2020 to March 2021 were selected and randomly divided into two groups: the experimental group (n=75) and the control group (n=75). Postoperative TIMI flow grade (TFG), corrected TIMI frame count(cTFC), 90 min postoperative ST segment resolution (STR), postoperative cardiac function parameters, any bleeding events and major adverse cardiovascular events (MACEs) after 30 days were recorded and analysed after completion of primary PCI. Results No significant differences between the two groups were found in terms of the TFG, cTFC, STR (Z=0.524, P=0.770), MACE (1.3% vs. 0, P=0.999), left ventricular ejection fraction [(49.5±6.6)% vs. (50.6±5.7) %, t=-1.092, P=0.276], left ventricular end-diastolic dimension [(50.0±8.9) mm vs. (51.2±7.6) mm, t=-0.888, P=0.376] and regional wall motion abnormality (86.7% vs. 90.1%, χ2=0.597, P=0.440). The bleeding events in the experimental group were significantly less than those in the control group, and the difference was statistically significant (5.3% vs. 18.7%, χ2=6.221, P=0.035). Conclusion The undelayed bivalirudin combined with intracoronary tirofiban only strategy, which is associated with good safety demonstrated by reduced bleeding events, is an alternative regimen for patients with AMI undergoing primary PCI. -
表 1 2组急性心肌梗死患者基线情况比较
Table 1. Comparison of baseline conditions of patients with acute myocardial infarction between the two groups
项目 试验组(n=75) 对照组(n=75) 统计量 P值 年龄(x ±s,岁) 65.1±7.5 69.6±8.7 -1.392a 0.090 男性[例(%)] 36(48.8) 37(49.3) 0.027b 0.870 体重指数(x ±s) 25.3±5.0 26.5±5.5 -1.398a 0.164 糖尿病[例(%)] 29(38.7) 24(32.0) 0.729b 0.393 吸烟[例(%)] 28(37.3) 30(40.0) 0.112b 0.737 高血压[例(%)] 48(64.0) 55(77.3) 1.518b 0.218 早发冠心病家族史[例(%)] 12(16.0) 10(13.3) 0.213b 0.644 糖化血红蛋白(x ±s,%) 6.1±2.1 5.8±1.9 1.662a 0.246 血肌酐(x ±s,μmol/L) 88.3±32.5 82.1±27.6 0.562a 0.383 血红蛋白(x ±s,g/L) 128.2±19.5 120.6±20.8 1.342a 0.165 血小板计数(x ±s,109/L) 198.3±90.5 205.6±82.3 1.329a 0.175 收缩压(x ±s,mm Hg) 135.5±30.8 132.6±25.7 0.965a 0.326 舒张压(x ±s,mm Hg) 80.6±20.3 77.3±19.8 1.811a 0.091 低密度脂蛋白胆固醇(x ±s,mmol/L) 2.8±0.9 2.9±0.9 -0.680a 0.497 总胆固醇(x ±s,mmol/L) 4.2±0.9 4.1±0.9 0.680a 0.497 KillipⅡ级及以上[例(%)] 13(17.3) 11(14.6) 0.198b 0.656 药物应用[例(%)] β受体阻滞剂 60(80.0) 58(77.3) 0.159b 0.690 ACEI、ARB、ARNI 68(90.6) 65(86.7) 0.597b 0.440 心肌梗死部位[例(%)] 0.109b 0.741 前壁 33(44.0) 31(41.3) 非前壁 42(56.0) 44(58.7) 梗死相关动脉[例(%)] 0.838b 0.658 LAD 33(44.0) 31(41.3) LCX 22(29.3) 19(25.3) RCA 20(26.7) 25(33.3) 基线TIMI血流0/1级[例(%)] 55(73.3) 51(68.0) 0.515b 0.473 发病-球囊扩张时间[M(P25, P75),h] 6.5(2.0,9.8) 5.5(2.0,8.8) 1.858c 0.065 TNI[M(P25, P75),ng/mL] 4.8(2.0,7.3) 4.5(2.0,7.1) 0.717c 0.475 血栓抽吸[例(%)] 8(10.7) 8(10.7) 注:a为t值,b为χ2值, c为Z值。1 mm Hg=0.133 kPa。ACEI为血管紧张素转换酶抑制剂;ARB为血管紧张素受体拮抗剂;ARNI为血管紧张素受体脑啡肽酶抑制剂;LAD为左前降支;LCX为左回旋支;RCA为右冠状动脉;TIMI为心肌梗死溶栓试验;TnI为肌钙蛋白I。 表 2 2组急性心肌梗死患者术后再灌注水平比较
Table 2. Comparison of reperfusion level between two groups of patients with acute myocardial infarction after operation
组别 例数 术后TIMI血流分级(TFG)[例(%)] cTFC(x ±s,帧) STR[例(%)] 0或1 2 3 CR PR NR 试验组 75 0 2(2.7) 73(97.3) 16.2±4.5 46(61.3) 20(26.7) 9(12.0) 对照组 75 0 3(4.0) 72(96.0) 16.3±5.0 43(57.3) 24(32.0) 8(10.7) 统计量 0.453a -0.129b 0.524c P值 0.650 0.898 0.770 注:a为χ2值,b为t值, c为Z值。TIMI为心肌梗死溶栓试验;TFG为TIMI血流分级;cTFC为校正的TIMI帧数;STR为ST段回落;CR为完全ST段回落;PR为部分ST段回落;NR为无ST段回落。 表 3 2组术后心脏功能指标比较
Table 3. Comparison of postoperative cardiac function indexes between the two groups
组别 例数 LVEF(x ±s, %) LVEDD(x ±s,mm) 室壁运动异常[例(%)] 试验组 75 49.5±6.6 50.0±8.9 65(86.7) 对照组 75 50.6±5.7 51.2±7.6 68(90.1) 统计量 -1.092a -0.888a 0.597b P值 0.276 0.376 0.440 注:a为t值,b为χ2值。LVEF为左心室射血分数;LVEDD为左心室舒张末期内径。 表 4 2组术后30 d出血事件及术后30 d的MACE比较[例(%)]
Table 4. Comparison of bleeding events and MACE at 30 d after operation between the two groups [cases (%)]
组别 例数 MACE BARC出血分级 全因死亡 支架内血栓 紧急血运重建 心肌梗死 0 1 2 3 4 5 试验组 75 1(1.3) 0 0 0 71(94.7) 3(4.0) 1(1.3) 0 0 0 对照组 75 0 0 0 0 61(81.3) 11(14.7) 3(4.0) 0 0 0 统计量 6.221b P值 0.999a 0.035 注:a为采用Fisher精确检验,b为χ2值。MACE为主要不良心血管事件;BARC为出血学术研究联合会。 -
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