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Randomized Controlled Trial
. 2013年6月6日; 368(23):2159-68。
doi: 10.1056/NEJMoa1214103. Epub 2013 May 20.

Prone positioning in severe acute respiratory distress syndrome

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Randomized Controlled Trial

Prone positioning in severe acute respiratory distress syndrome

Claude Guérinet al. N Engl J Med. .
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Abstract

背景:以前的试验涉及急性患者respiratory distress syndrome (ARDS) have failed to show a beneficial effect of prone positioning during mechanical ventilatory support on outcomes. We evaluated the effect of early application of prone positioning on outcomes in patients with severe ARDS.

Methods:In this multicenter, prospective, randomized, controlled trial, we randomly assigned 466 patients with severe ARDS to undergo prone-positioning sessions of at least 16 hours or to be left in the supine position. Severe ARDS was defined as a ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (FiO2) of less than 150 mm Hg, with an FiO2 of at least 0.6, a positive end-expiratory pressure of at least 5 cm of water, and a tidal volume close to 6 ml per kilogram of predicted body weight. The primary outcome was the proportion of patients who died from any cause within 28 days after inclusion.

Results:共有237名患者被分配到俯卧组,并将229名患者分配到仰卧组。俯卧群的28天死亡率为16.0%,仰卧群为32.8%(p <0.001)。俯卧定位的死亡危险比为0.39(95%置信区间[CI],0.25至0.63)。在俯卧群中未经调整的90天死亡率为23.6%,而仰卧群为41.0%(p <0.001),危险比为0.44(95%CI,0.29至0.67)。两组之间并发症的发生率没有显着差异,除了心脏骤停的发生率,仰卧群较高。

Conclusions:In patients with severe ARDS, early application of prolonged prone-positioning sessions significantly decreased 28-day and 90-day mortality. (Funded by the Programme Hospitalier de Recherche Clinique National 2006 and 2010 of the French Ministry of Health; PROSEVA ClinicalTrials.gov number,NCT00527813。)。

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