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Aim: Acute kidney injury (AKI) is one of the frequent complications of COVID-19 infection. The predictors of progressive kidney disease for patients with COVID-19- associated AKI (COV-AKI) are unclear. In our study, we aimed to demonstrate the risk factors of non-recovery of COV-AKI.
Materials and Methods: COV-AKI developed in 901 of 3,337 patients treated in our hospital for COVID-19 between April 1, 2020 and November 30, 2020. 331 of 901 patients with COV-AKI died at the hospital. Of these patients, 459 patients who met the inclusion criteria were included in the study, while 111 patients were excluded. At 3 months post-AKI, 399 of 459 cases (Group 1) recovered from AKI, and 60 (Group 2) did not.
Results: The median age of the patients included in the study was 68 (59-76), and 44.9% (206) of them were women. Thirty-five of 60 patients in Group 2 developed de novo chronic kidney disease while 25 patients had a history of chronic kidney disease (CKD) and experienced a disease progression. We found that patients with low serum albumin levels (hypoalbuminemia) at admission (P<0.001) were associated with non-recovery of AKI or occurrence of CKD progression, in COV-AKI.
Conclusion: Although the short-term outcomes of COV-AKI are relatively well-known, the long-term outcomes are needed to be clarified more. This study indicates hypoalbuminemia may be indicators of non-recovery in COV-AKI.
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