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Year : 2022  |  Volume : 10  |  Issue : 3  |  Page : 47-51

Acute kidney injury: A potential mortality indicator in the second wave of COVID-19 pandemic in India

1 Department of Physiology, Defense Institute of Physiology and Allied Sciences, Delhi, India
2 Department of Community Medicine, AFMC, Pune, India
3 Department of Medicine, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
4 Department of Radiology, IDS, Delhi, India

Correspondence Address:
Arun Kumar Yadav
Department of Community Medicine, AFMC, Pune, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/mjhs.mjhs_6_22

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Background: Coronavirus disease-2019 (COVID-19) has protean clinical presentation, influencing almost every organ. The number of COVID-19 patients with acute kidney injury (AKI) is expanding, and the incidence of kidney injury in COVID-19 patients with severe disease is higher than in patients with mild disease. Objectives: The objective of the study is to find out the association of AKI with COVID-19 deaths. Methods: A case–control study was designed with a total of 172 patients. This included 92 death cases and 80 discharged cases in a dedicated COVID-19 hospital, critical care and fully intensive care unit equipped, in the peak of the second wave of COVID pandemic. Various biochemical parameters and inflammatory markers were studied to find out the mortality indicators in these severe COVID-19 cases. Results: Significantly elevated AKI markers such as urea (mean 58.5 vs. 37.1, P < 0.05), uric acid (mean 5.67 vs. 4.18, P < 0.05), and blood urea nitrogen (mean 26.9 vs. 17.3, P < 0.05) were detected in the death group compared to discharge group. This was accompanied by significantly elevated markers of inflammation such as total leukocyte count (TLC) (mean 16082 vs. 12100, P < 0.05), interleukin (IL-6) (mean 194.9 vs. 58.7, P < 0.05), C-reactive protein (mean 28.45 vs. 9.73, P < 0.05), and ferritin (mean 761.4 vs. 608.2, P < 0.05) in the death group. Conclusion: Significant AKI was noticed in the death group and AKI was further positively correlated with inflammatory markers C-reactive protein, ferritin, IL-6, d-dimer, and TLC levels.

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