• Ary Serpa Neto, Victor Galvão Moura Pereira, Daniel Crepaldi Espósito, Maria Cecília Toledo Damasceno, and Marcus J Schultz.
• Medical Intensive Care Unit, ABC Medical School (FMABC), Av, Lauro Gomes, Santo André, 2000, Brazil. aryserpa@terra.com.br.
• Ann Intensive Care. 2012 Jan 1;2(1):33.

BackgroundAcute respiratory distress syndrome (ARDS) is a potentially fatal disease with high mortality. Our aim was to summarize the current evidence for use of neuromuscular blocking agents (NMBA) in the early phase of ARDS.MethodsSystematic review and meta-analysis of publications between 1966 and 2012. The Medline and CENTRAL databases were searched for studies on NMBA in patients with ARDS. The meta-analysis was limited to: 1) randomized controlled trials; 02) adult human patients with ARDS or acute lung injury; and 03) use of any NMBA in one arm of the study compared with another arm without NMBA. The outcomes assessed were: overall mortality, ventilator-free days, time of mechanical ventilation, adverse events, changes in gas exchange, in ventilator settings, and in respiratory mechanics.ResultsThree randomized controlled trials covering 431 participants were included. Patients treated with NMBA showed less mortality (Risk ratio, 0.71 [95 % CI, 0.55 - 0.90]; number needed to treat, 1 - 7), more ventilator free days at day 28 (p = 0.020), higher PaO2 to FiO2 ratios (p = 0.004), and less barotraumas (p = 0.030). The incidence of critical illness neuromyopathy was similar (p = 0.540).ConclusionsThe use of NMBA in the early phase of ARDS improves outcome.

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