• Karin E Eriksson, Francesca Campoccia-Jalde, Susanne Rysz, and Claire Rimes-Stigare.
• Dept of Perioperative Medicine and Intensive Care, Karolinska University Hospital, 171 76, Stockholm, Sweden; Dept of Physiology and Pharmacology, Karolinska Institute, Solnavägen 1, 171 77 Stockholm, Sweden. Electronic address: karin.eriksson.1@ki.se.
• J Crit Care. 2021 Aug 1; 64: 125130125-130.

BackgroundOutcome for critically ill patients with COVID-19 treated with continuous renal replacement therapy (CRRT) is largely unknown. We describe mortality and renal outcome in this group.MethodsThis observational study was conducted at a university hospital in Sweden. We studied critically ill adult COVID-19 patients with Acute Kidney injury (AKI) who received CRRT.ResultsIn 451 patients, AKI incidence was 43.7%. 18.2% received CRRT. Median age of CRRT patients was 60 years (IQR 54-65), 90% were male, median BMI was 29 (IQR 25-32), 23.2% had Diabetes, 37.8% hypertension and 6.1% chronic kidney disease prior to admission. 100% required mechanical ventilation. 8.5% received Extra Corporeal Membrane Oxygenation. Median length of stay was 23 days (IQR 15-26). ICU mortality was 39% and 90-day mortality was 45.1%. Age, baseline creatinine values and body weight change were associated with 60 days mortality. Of the survivors, no patients required dialysis at hospital discharge, 73.8% recovered renal function and a median 10.5% of body weight was lost during admission.ConclusionsCritically ill COVID-19 patients with AKI who received CRRT had a 90-day mortality of 45.1%. At follow-up, three quarters of survivors had recovered renal function. This information is important in the clinical management of COVID-19.Copyright © 2021 Elsevier Inc. All rights reserved.

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