由TRICS Investigators 与 Perioperative Anesthesia Clinical Trials Group组织参与的多中心研究TRICS-Ⅲ研究已在11月13日的AHA Scientific Sessions 2017 上发布,按照大会的报道稿,这是一个late-breaking(最新爆炸性)级别的研究,并将刊登于NEJM杂志上!从题目上看,这是一个对心外手术患者的不同输血策略的疗效比较的研究。 我们从Pubmed(PMID:29130845)查到对本文的文献著录为 N Engl J Med. 2017 Nov 30;377(22):2133-2144. doi: 10.1056/NEJMoa1711818. Epub 2017 Nov 12.),可以知道11月30日应该是本文的正式出版日,不过,非常有趣的是,本论文虽在NEJM“Online First(在线发布)”栏目上能够看到,但目前却无法进入(http://www./doi/full/10.1056/NEJMoa1711818),不知何故? Restrictive or Liberal Red-Cell Transfusion for Cardiac Surgery. 心脏手术患者的限制性与开放性输血 Mazer CD, Whitlock RP, Fergusson DA,et al. N Engl J Med. 2017 Nov 30;377(22):2133-2144. PMID: 29130845 DOI: 10.1056/NEJMoa1711818 Background The effect of a restrictive versus liberal red-cell transfusion strategy on clinical outcomes in patients undergoing cardiac surgery remains unclear. 背景 限制性与开放性的输血策略对心脏手术患者临床结局的影响尚不清楚。 Methods In this multicenter, open-label, noninferiority trial, we randomly assigned 5243 adults undergoing cardiac surgery who had a European System for Cardiac Operative Risk Evaluation (EuroSCORE) I of 6 or more (on a scale from 0 to 47, with higher scores indicating a higher risk of death after cardiac surgery) to a restrictive red-cell transfusion threshold (transfuse if hemoglobin level was <7.5 g="" per="" deciliter,="" starting="" from="" induction="" of="" anesthesia)="" or="" a="" liberal="" red-cell="" transfusion="" threshold="" (transfuse="" if="" hemoglobin="" level="" was="">7.5><9.5 g="" per="" deciliter="" in="" the="" operating="" room="" or="" intensive="" care="" unit="" [icu]="" or="" was="">9.5><8.5 g="" per="" deciliter="" in="" the="" non-icu="" ward).="" the="" primary="" composite="" outcome="" was="" death="" from="" any="" cause,="" myocardial="" infarction,="" stroke,="" or="" new-onset="" renal="" failure="" with="" dialysis="" by="" hospital="" discharge="" or="" by="" day="" 28,="" whichever="" came="" first.="" secondary="" outcomes="" included="" red-cell="" transfusion="" and="" other="" clinical="">8.5> 方法 在多中心开放性非劣性试验中, 按欧洲心脏手术风险评估系统(EuroSCORE),我们将5243名 EuroSCORE分数≥6(0-47分,分数较高表明心脏手术后死亡风险较高)的成人心脏手术患者随机分入限制性输血阈值组(血红蛋白水平<7.5>7.5><9.5 g/dl,非icu病房血红蛋白水平≤8.5="">9.5> Results The primary outcome occurred in 11.4% of the patients in the restrictive-threshold group, as compared with 12.5% of those in the liberal-threshold group (absolute risk difference, -1.11 percentage points; 95% confidence interval [CI], -2.93 to 0.72; odds ratio, 0.90; 95% CI, 0.76 to 1.07; P<0.001 for="" noninferiority).="" mortality="" was="" 3.0%="" in="" the="" restrictive-threshold="" group="" and="" 3.6%="" in="" the="" liberal-threshold="" group="" (odds="" ratio,="" 0.85;="" 95%="" ci,="" 0.62="" to="" 1.16).="" red-cell="" transfusion="" occurred="" in="" 52.3%="" of="" the="" patients="" in="" the="" restrictive-threshold="" group,="" as="" compared="" with="" 72.6%="" of="" those="" in="" the="" liberal-threshold="" group="" (odds="" ratio,="" 0.41;="" 95%="" ci,="" 0.37="" to="" 0.47).="" there="" were="" no="" significant="" between-group="" differences="" with="" regard="" to="" the="" other="" secondary="">0.001> 结果 限制性输血组患者主要终点事件发生率为11.4%,开放组患者为12.5%(绝对风险差异为-1.11%; 95%置信区间[CI] 2.93-0.72; OR,0.90; 95%CI,0.76至1.07;非劣性P <0.001)。限制组的死亡率为3.0%,开放组的死亡率为3.6%(or 0.85,95%ci:0.62-1.16)。限制输血组中有52.3%的患者输血,而开放组患者输血的比例为72.6%(or="">0.001)。限制组的死亡率为3.0%,开放组的死亡率为3.6%(or> Conclusions In patients undergoing cardiac surgery who were at moderate-to-high risk for death, a restrictive strategy regarding red-cell transfusion was noninferior to a liberal strategy with respect to the composite outcome of death from any cause, myocardial infarction, stroke, or new-onset renal failure with dialysis, with less blood transfused. (Funded by the Canadian Institutes of Health Research and others; TRICS III ClinicalTrials.gov number, NCT02042898 .). 结论 处于中至高度死亡风险的心脏手术的患者中,限制性输血策略在任何原因导致的死亡,心肌梗死,中风、需透析的新发肾衰等复合终点事件方面都不逊色于开放性输血策略,且输血比例减少。 (TRICS III ClinicalTrials.gov,NCT02042898)。 评价(主要内容源自Bottom Line): 背景:
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Newsccm(危通社)的小结:
附:对首席作者Mazer CD的访谈在 https://www./watch?v=IhTsbAPoSsw |
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