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Saudi Journal of Kidney Diseases and Transplantation
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ORIGINAL ARTICLE Table of Contents   
Year : 2020  |  Volume : 31  |  Issue : 4  |  Page : 759-766
Influenza A (H1N1) Virus Infection Associated Acute Kidney Injury - A Study from a Tertiary Care Center in South India

Department of Nephrology, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Porur, Chennai, Tamil Nadu, India

Correspondence Address:
Elayaperumal Indhumathi
Department of Nephrology, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Ramachandra Nagar, Porur, Chennai - 600 116, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-2442.292309

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Influenza A (H1N1) infection in 2009 spread rapidly all over the world. Mortality was high in patients with H1N1-associated acute kidney injury (AKI). We estimated the incidence, risk factors of AKI and mortality associated with H1N1 infection. This is a prospective observational study, including 158 adult patients with H1N1 infection confirmed with real-time reverse transcriptase-polymerase chain reaction conducted between August 2016 and September 2017. AKIN criteria were used to define AKI. Of 158 patients in this study, 112 were male and the mean age was 46.4. Fifteen patients (9.5%) were found to have AKI. The mean age was higher (56.13 ± 10.02) in the AKI group compared to non-AKI (45.48 ± 16.26) (P = 0.007). Presence of shock, multiple organ dysfunction syndrome (MODS), ventilatory support were observed more in the AKI group (P = 0.000). Among AKI patients, the requirement of dialysis was more than 50% (n = 8/15, 53.3%). Eighteen patients died following H1N1 infection (11.4%).Shock (n = 8/18, 44.4%, P = 0.000), MODS (n = 13/18, 72.2%, P = 0.000), intensive care unit (ICU) care (n = 17/18, 94.4%, P = 0.000), ventilatory support (n = 18/18, 100% P = 0.000), AKI (n = 11/18, 61.1%, P = 0.000), and requiring dialysis (n = 7/18, 38.9%, P = 0.000) were significantly associated with mortality compared to patients who survived. The incidence of H1N1 AKI was 9.5%, with > 50% requiring dialysis. Risk factors for AKI included older age, underlying chronic kidney disease, presentation with sepsis, shock, MODS, ICU care, and mechanical ventilation. Mortality was high in patients with AKI compared to non-AKI patients.

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