• Bart Cortjens, Annick A N M Royakkers, Rogier M Determann, Jeroen D E van Suijlen, Stephan S Kamphuis, Jannetje Foppen, Anita de Boer, Cathrien W Wieland, Peter E Spronk, Marcus J Schultz, and Catherine S C Bouman.
• Laboratory of Experimental Intensive Care and Anesthesiology (LEICA), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. bartcortjens@hotmail.com
• J Crit Care. 2012 Jun 1;27(3):261-7.

IntroductionPreclinical and clinical studies suggest that mechanical ventilation contributes to the development of acute kidney injury (AKI), particularly in the setting of lung-injurious ventilator strategies.ObjectiveTo determine whether ventilator settings in critically ill patients without acute lung injury (ALI) at onset of mechanical ventilation affect the development of AKI.Design, Setting, And PatientsSecondary analysis of a randomized controlled trial (N = 150), comparing conventional tidal volume (V(T), 10 mL/kg) with low tidal volume (V(T), 6 mL/kg) mechanical ventilation in critically ill patients without ALI at randomization. During the first 5 days of mechanical ventilation, the RIFLE class was determined daily, whereas neutrophil gelatinase-associated lipocalin and cystatin C levels were measured in plasma collected on days 0, 2, and 4.ResultsEighty-six patients had no AKI at inclusion, and 18 patients (21%) subsequently developed AKI, but without significant difference between ventilation strategies. (Cumulative hazard, 0.26 vs 0.23; P = .88.) The courses of neutrophil gelatinase-associated lipocalin and cystatin C plasma levels did not differ significantly between randomization groups.ConclusionIn the present study in critically patients without ALI at onset of mechanical ventilation, lower tidal volume ventilation did not reduce the development or worsening of AKI compared with conventional tidal volume ventilation.Copyright © 2012 Elsevier Inc. All rights reserved.

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