JAMA:辛伐他汀不能改善呼吸机相关性肺炎患者第28天时的生存率

2013-10-22 sd3212 dxy

一些重要的观察性研究表明,他汀类药物的使用可能与多种感染的预后改善相关。呼吸机相关性肺炎(VAP)是重症监护病房(ICU)内最常见的感染,且具有较高的死亡率。为了探讨他汀类药物治疗是否可以降低此类VAP患者的死亡率,来自法国马赛市艾克斯-马赛大学附属医院北院的Laurent Papazian及其同事进行了一项研究,研究结果在线发表于2013年10月9日的《美国医学会杂志》(JAMA)上。研究结果显

一些重要的观察性研究表明,他汀类药物的使用可能与多种感染的预后改善相关。呼吸机相关性肺炎(VAP)是重症监护病房(ICU)内最常见的感染,且具有较高的死亡率。为了探讨他汀类药物治疗是否可以降低此类VAP患者的死亡率,来自法国马赛市艾克斯-马赛大学附属医院北院的Laurent Papazian及其同事进行了一项研究,研究结果在线发表于2013年10月9日的《美国医学会杂志》(JAMA)上。研究结果显示:对于怀疑有VAP的成年患者而言,添加辛伐他汀治疗与安慰剂相比不能改善其第28天时的生存率。【原文下载

该研究是一项多中心、随机、双盲、安慰剂对照、平行组别的临床试验。共有来自法国的26个重症监护病房参与了该研究,研究的起止时间为2010年1月至2013年3月。

为了能尽快取得一个第28天病死率8%的绝对减少,研究者计划招募1002名符合以下标准的患者,即:机械通气时间超过2天,且有可疑的VAP。这里,研究者将可疑的VAP定义为:患者改良的临床肺部感染评分≥5分。此外,研究者将确定治疗无效、并终止试验的标准定为:在入选了251例患者后,辛伐他汀组第28天时的死亡率较安慰剂至少绝对增加了2.7%。

研究者让受试者在开始抗生素治疗的同一天,随机开始接受辛伐他汀(60mg)或安慰剂治疗,直到患者转出ICU、死亡、或者用满28天为止(以先发生者为准)。研究的主要终点事件是患者第28天时的死亡率。其它终点事件包括:第14天时的死亡率;ICU内、及医院内的死亡率;机械通气时间;以及第3,第7,和第14天时的序贯器官衰竭(SOFA)评分。

该研究的主要结果为:由于确定治疗无效,研究在第一个计划中的期中分析之后被迫停止,此时总共已入选了300例患者。其中,辛伐他汀组、与安慰剂组分别有93%、与89%的患者,在入住重症监护病房前从没用过他汀类药物治疗。期中分析显示,辛伐他汀组第28天时的死亡率为21.2%,较安慰剂组的15.2%没有降低;组间比较,其危险比、及组间差异分别为1.45、及6%。而那些在入住重症监护病房前从没用过他汀类药物的受试者,其第28天时的死亡率在辛伐他汀组、及安慰剂组则分别为21.5%、与13.8%;组间差异达到了7.7%。

除上述外,其它终点事件,如第14天时的死亡率;ICU内、及医院内的死亡率;机械通气时间;以及SOFA评分变化等,在2组间比较均无统计学上的显著差异。

该研究结果显示:对于怀疑有VAP的成年患者而言,添加辛伐他汀治疗与安慰剂相比不能改善其第28天时的生存率。这一结果不支持为改善VAP患者的预后而使用他汀类药物治疗。

原文检索

Papazian L, Roch A, Charles PE, Penot-Ragon C, Perrin G, Roulier P, Goutorbe P, Lefrant JY, Wiramus S, Jung B, Perbet S, Hernu R, Nau A, Baldesi O, Allardet-Servent J, Baumstarck K, Jouve E, Moussa M, Hraiech S, Guervilly C, Forel JM; for the STATIN-VAP Study Group.Effect of Statin Therapy on Mortality in Patients With Ventilator-Associated Pneumonia: A Randomized Clinical Trial.JAMA. 2013 Oct 9. 【原文下载

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    2013-10-24 Boyinsh
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