冠心病支架置入术后接受非心脏外科手术围术期抗栓治疗策略Bridging antiplatelet strategies during temporary withdrawal of antiplatelet therapy for non-cardiac surgery after drug-eluting stent implantation
崔军凯,余阳,周文君,柳梅
摘要(Abstract):
目的比较三种抗栓策略对药物洗脱支架(DES)置入术1年内需接受非心脏外科手术患者的主要不良心血管事件和出血发生率。方法回顾性分析因冠心病行DES置入术且正行双联抗血小板药物治疗(氯吡格雷和阿司匹林)并于置入1年内需行非心脏外科手术的患者42例,根据抗栓策略分为三组。替罗非班组和低分子肝素组患者均于术前5~7 d停用双联抗血小板药物治疗。替罗非班组30 min内以0.4μg/(kg·min)静脉输注替罗非班,30 min后调整速度为0.1μg/(kg·min),继而以0.1μg/(kg·min)的速度维持,肌酐清除率下降的患者减量;低分子肝素组给予低分子肝素钠(克塞)4000 AxaIU皮下注射,每日1次;阿司匹林组仅继续使用阿司匹林75 mg,每日1次。三组患者术后根据分组继续使用替罗非班、低分子肝素钠或阿司匹林直至重新恢复双联抗血小板治疗。比较三组患者围术期主要不良心血管事件和出血发生率。结果替罗非班组和低分子肝素组主要不良心血管事件发生率明显低于阿司匹林组,阿司匹林组有1例支架内血栓形成。三组出血发生率比较,差异无统计学意义(P>0.05)。替罗非班组和低分子肝素组围术期均无患者出现心绞痛或心肌梗死,低分子肝素组有1例患者心电图出现ST-T改变,但无自觉症状,考虑与糖尿病导致的心脏交感神经变性有关。阿司匹林组有3例出现心电图ST-T改变,其中2例为心绞痛发作,1例发生急性ST段抬高型心肌梗死,行急诊经皮冠状动脉介入治疗,诊断为前降支支架内血栓形成,给予血栓抽吸等处理后好转。三组患者均无心血管相关性死亡。三组患者围术期出血量比较,差异无统计学意义(P>0.05)。替罗非班组有1例股骨头置换术后出现伤口渗血,皮下瘀斑,未特殊处理,自行好转。低分子肝素组1例消化道出血,表现为黑便,未见呕血,给予药物治疗后好转。结论替罗非班和低分子肝素可作为中断双联抗血小板药物治疗期间的"过渡治疗",可安全有效地用于DES置入术后需接受外科手术的患者。
关键词(KeyWords): 支架置入术;抗血小板药物治疗;外科手术;围术期
基金项目(Foundation):
作者(Author): 崔军凯,余阳,周文君,柳梅
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