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KMID : 1144420210360040308
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Acute and Critical Care
2021 Volume.36 No. 4 p.308 ~ p.316
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COVID-19?induced acute kidney injury in critically ill patients: epidemiology, risk factors, and outcome
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Trifi Ahlem
Abdellatif Sami
Masseoudi Yosri
Mehdi Asma
Benjima Oussama
Seghir Eya
Cherif Fatma
Touil Yosr
Jeribi Bedis
Daly Foued
Abdennebi Cyrine
Ammous Adel
Lakhal Salah Ben
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Abstract
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Background: The kidney represents a potential target for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Clinical data about acute kidney injury (AKI) during SARS-CoV-2 infection are lacking. We aimed to investigate the proportion, risk factors, and prognosis of AKI in critical patients affected with SARS-CoV-2.
Methods: A case/control study was conducted in two intensive care units of a tertiary teaching hospital.
Results: Among 109 patients, 75 were male (69%) with median age at 64 years and 48 (44%) developed AKI within 4 days (interquartile range [IQR], 1?9). Of them, 11 (23%), 9 (19%), and 28 (58%) were classified as stage 1, 2, and 3, respectively. AKI patients were older and presented more sepsis, acute respiratory distress syndrome, and rhabdomyolysis; higher initial urea and creatinine; more marked inflammatory syndrome and hematological disorders; and required more mechanical ventilation and vasopressors. An elevated D-dimers level (odds ratio [OR], 12.83; 95% confidence interval [CI], 1.9?85) was an independent factor of AKI. Sepsis was near to significance (OR, 5.22; 95% CI, 0.94?28; P=0.058). AKI was independently related to mortality (OR, 6.8; 95% CI, 1.49?105) and significantly reduced the survival (14.7 days; IQR, 12-17 vs. 19.9 days; IQR, 17-22.7; P=0.011) in AKI and no AKI group respectively). Hypoxemia with the ratio of the arterial partial pressure of oxygen and the inspiratory concentration of oxygen <70, and vasopressors were identified as mortality factors.
Conclusions: AKI occurred in almost half the studied patients and significantly worsened their prognosis. A high D-dimers level and sepsis contributed significantly to its development.
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KEYWORD
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acute kidney injury, coronavirus disease 2019, mechanical ventilation, mortality
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