• 论著 •    

非体外循环冠状动脉旁路移植术后阿司匹林抵抗现象的研究

高菲1,魏民新2   

  1. 1. 天津医科大学
    2. 天津医科大学总医院
  • 收稿日期:2009-10-12 修回日期:2009-11-12 出版日期:2010-11-15 发布日期:2010-11-15
  • 通讯作者: 魏民新

Aspirin resistance and off-pump coronary artery bypass grafting surgery

Gao Fei,   

  • Received:2009-10-12 Revised:2009-11-12 Published:2010-11-15 Online:2010-11-15

摘要: 目的: 通过检测非体外循环冠状动脉旁路移植术(OPCAB)后患者血小板聚集率,了解OPCAB术后患者阿司匹林抵抗(AR)发生情况。方法:60名患者接受OPCAB手术,术前常规停用阿司匹林5-7天,术后服用阿司匹林100mg/天,分别于术前、术后服药后第1天、4天以及10天检测花生四烯酸诱导的血小板聚集率,同时记录患者各项临床资料。结果:60例患者中,服用阿司匹林后第1天存在AR者17例(28.3%),第4天存在AR者9例(15%),第10天存在AR者2例(3.3%),血小板聚集率下降水平在服药4天后趋于稳定。结论:OPCAB术后早期,阿司匹林抗血小板聚集的作用受到抑制,部分患者出现AR,这一时期予以更为积极的抗凝治疗有重要临床意义。

关键词: 冠状动脉旁路移植术, 阿司匹林抵抗, 血小板聚集

Abstract: Objective:To assess aspirin efficacy in the early postoperative period. Methods:Sixty patients undergoing OPCAB surgery were enrolled in the study. Functional and biochemical responses to aspirin were evaluated by arachidonic acid (ARA)-induced platelet aggregation and urine 11-DH-TXB2 metabolite excretion. Previous aspirin treatment was terminated 5-7days before OPCAB and continued at the day with food intake after surgery. Samples were collected before and on days 1, 4 and 10 after aspirin intake(100mg/d). Results:Patients with aspirin resistance on days 1,4and 10 were 17,9 and 2, separately, and the level of platelet aggregation was stable on the 4th day after aspirin intake. Conclusion:Aspirin did not sufficiently inhibit platelet aggregation early after OPCAB. It is important to keep potential anti-coagulation therapy in the early postoperative period.

Key words: coronary artery bypass grafting surgery, aspirin resistance , platelet aggregation