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- Title
Acute kidney injury in critical ill patients affected by influenza A (H1N1) virus infection.
- Authors
Martin-Loeches, Ignacio; Papiol, Elisabeth; Rodríguez, Alejandro; Diaz, Emili; Zaragoza, Rafael; Granada, Rosa María; Socias, Lorenzo; Bonastre, Juan; Valverdú, Montserrat; Pozo, Juan Carlos; Luque, Pilar; Juliá-Narvaéz, Jose Antonio; Cordero, Lourdes; Albaya, Antonio; Serón, Daniel; Rello, Jordi; H1N1 SEMICYUC Working Group
- Abstract
<bold>Introduction: </bold>Little information exists about the impact of acute kidney injury (AKI) in critically ill patients with the pandemic 2009 influenza A (H1N1) virus infection.<bold>Methods: </bold>We conducted a prospective, observational, multicenter study in 148 Spanish intensive care units (ICUs). Patients with chronic renal failure were excluded. AKI was defined according to Acute Kidney Injury Network (AKIN) criteria.<bold>Results: </bold>A total of 661 patients were analyzed. One hundred eighteen (17.7%) patients developed AKI; of these, 37 (31.4%) of the patients with AKI were classified as AKI I, 15 (12.7%) were classified as AKI II and 66 (55.9%) were classified as AKI III, among the latter of whom 50 (75.7%) required continuous renal replacement therapy. Patients with AKI had a higher Acute Physiology and Chronic Health Evaluation II score (19.2 ± 8.3 versus 12.6 ± 5.9; P < 0.001), a higher Sequential Organ Failure Assessment score (8.7 ± 4.2 versus 4.8 ± 2.9; P < 0.001), more need for mechanical ventilation (MV) (87.3% versus 56.2%; P < 0.01, odds ratio (OR) 5.3, 95% confidence interval (CI) 3.0 to 9.4), a greater incidence of shock (75.4% versus 38.3%; P < 0.01, OR 4.9, 95% CI, 3.1 to 7.7), a greater incidence of multiorgan dysfunction syndrome (92.4% versus 54.7%; P < 0.01, OR 10.0, 95% CI, 4.9 to 20.21) and a greater incidence of coinfection (23.7% versus 14.4%; P < 0.01, OR 1.8, 95% CI, 1.1 to 3.0). In survivors, patients with AKI remained on MV longer and ICU and hospital length of stay were longer than in patients without AKI. The overall mortality was 18.8% and was significantly higher for AKI patients (44.1% versus 13.3%; P < 0.01, OR 5.1, 95% CI, 3.3 to 7.9). Logistic regression analysis was performed with AKIN criteria, and it demonstrated that among patients with AKI, only AKI III was independently associated with higher ICU mortality (P < 0.001, OR 4.81, 95% CI 2.17 to 10.62).<bold>Conclusions: </bold>In our cohort of patients with H1N1 virus infection, only those cases in the AKI III category were independently associated with mortality.
- Publication
Critical Care, 2011, Vol 15, Issue 1, pR66
- ISSN
1364-8535
- Publication type
journal article
- DOI
10.1186/cc10046