• Manish M Sood, Claudio Rigatto, Ryan Zarychanski, Paul Komenda, Amy R Sood, Joe Bueti, Martina Reslerova, Dan Roberts, Julie Mojica, and Anand Kumar.
• St Boniface General Hospital, University of Manitoba, Winnipeg, Manitoba, Canada.
• Am. J. Kidney Dis. 2010 May 1; 55 (5): 848-55.

Background2009 pandemic influenza A(H1N1) has led to a global increase in severe respiratory illness. Little is known about kidney outcomes and dialytic requirements in critically ill patients infected with pandemic H1N1.Study DesignProspective observational study.Setting & Participants50 patients with pandemic H1N1 admitted to any of 7 intensive care units in Manitoba, Canada, were prospectively followed.Outcome & MeasurementsOutcomes were kidney injury and kidney failure defined using RIFLE (risk, injury, failure, loss, end-stage disease) criteria or need for dialysis therapy.ResultsThe pandemic H1N1 group was composed of 50 critically ill patients with pandemic H1N1 with severe respiratory syndrome (47 confirmed cases, 3 probable). Kidney injury, kidney failure, and need for dialysis occurred in 66.7%, 66%, and 11% of patients, respectively. Mortality was 16%. Kidney failure was associated with increased death (OR, 11.29; 95% CI, 1.29-98.9), whereas the need for dialysis was associated with an increase in length of stay (RR, 2.38; 95% CI, 2.13-25.75).LimitationsSmall population studied from single Canadian province; thus, limited generalizability.ConclusionsIn critically ill patients with pandemic H1N1, kidney injury, kidney failure, and the need for dialysis are common and associated with an increase in mortality and length of intensive care unit stay.Copyright 2010 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.

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