ASCRS2013:IBD患者术后或应长期预防VTE

2013-07-08 佚名 EGMN

凤凰城——最新研究数据显示,接受腹部大手术的炎症性肠病(IBD)患者术后静脉血栓栓塞(VTE)风险持续升高,需要将预防时间延长到与结直肠癌患者相似的程度。 犹他大学的结直肠外科医生Molly Gross博士在美国结直肠外科医师协会(ASCRS)2013年会上报告,她与同事回顾性分析了来自全国外科质量改善计划(NSQIP)数据库2005~2010年的数据,在近46,000例接受腹

凤凰城——最新研究数据显示,接受腹部大手术的炎症性肠病(IBD)患者术后静脉血栓栓塞(VTE)风险持续升高,需要将预防时间延长到与结直肠癌患者相似的程度。

犹他大学的结直肠外科医生Molly Gross博士在美国结直肠外科医师协会(ASCRS)2013年会上报告,她与同事回顾性分析了来自全国外科质量改善计划(NSQIP)数据库2005~2010年的数据,在近46,000例接受腹部大手术的IBD或结直肠癌患者(包括8,888例IBD患者和37,076例结直肠癌患者)中评估了静脉血栓栓塞(VTE)发病率。

研究结果显示,IBD患者的经校正术后30天VTE(DVT和/或PE)风险比结直肠癌患者相对增高35%(2.7% vs. 2.1%,P<0.001)。多变量分析显示,与同龄的结直肠癌患者相比,IBD患者的30天VTE风险仍然显著增高[比值比(OR),1.35;P=0.005]。而且IBD患者的多数(55%)事件发生在手术1周之后,而此时多数患者已经出院或者即将出院。 

“国立综合癌症网络(NCCN)目前建议,采用皮下肝素或依诺肝素对接受腹部大手术的结直肠癌患者进行多至4周的术后院外预防。而目前对于IBD患者并无此类建议。”基于上述研究结果,研究者总结认为,对于IBD患者术后VTE预防的建议应当参照结直肠癌患者,应当进行更长时间的院外VTE预防。

特邀评论员、布莱顿圣伊丽莎白医疗中心的Justin Lee医生称赞了本项研究在统计学方面的严谨性,但对于本项研究中明显低于其他研究的30天VTE发生率(IBD组2.7%,结直肠癌组2.1%)表示了质疑。NCCN结直肠癌指南的依据是多项大规模前瞻性研究,“这些研究被认为比NSQIP更接近实时数据”,它们显示结直肠癌患者的30天深静脉血栓(DVT)发生率介于7%~12%,即使将术后预防时间延长至30天,也只能使DVT发生率降至4%~4.5%——大约是本项研究中观察到的发生率的2倍。

Gross博士推测,上述研究之间的差异是由多种原因造成的,包括不同的试验设计(随机对照 vs. 回顾性综述)、不同的手术患者群(较早期仅接受开放手术 vs. 当代接受开放或腹腔镜手术),以及不清楚本项研究中有多少结直肠癌患者接受了延长预防。

会议主持人之一的杜克大学医疗中心的John Migaly医生指出,术后大约20天时VTE发生率急剧下降,这时大概是出院后2周。他询问:“你认为VTE预防是否有一个理想的时间跨度,还是说4周就很好?”Gross博士答复称,推荐4周的依据是2002年一项肿瘤患者研究的结论(N. Engl. J. Med. 2002;346:975-80)。“最佳时间应当是因患者的具体情况而异的:活动量大小、状态恢复程度,以及IBD活动度等。所以我认为很难提出一个适用于所有患者的理想时间。我们提出的4周并不适用于所有患者。”

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    2013-11-23 quxin068
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    2013-07-10 bnurmamat
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    2013-07-10 cathymary
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