Relationship between acute kidney injury requiring renal replacement treatment and mortality in patients with COVID-19

Abstract

It has been reported that the most affected organ by the coronavirus disease 2019 (COVID-19) is the lung, closely followed by the kidney. Over the course of the COVID-19, the factors affecting mortality in acute kidney injury requiring renal replacement therapy (AKI-RRRT) have not been known. This study was conducted in order to shed light on this issue. There were 64 patients in total. Subjects were divided into two groups. Group 1 consisted of a control group that comprised 33 subjects who did not have AKI during the time in which they were infected with COVID-19. Group 2 was COVID-19 related AKI requiring renal replacement therapy (COVID-19 AKI-RRRT), which included 31 subjects who were exposed to AKI-RRRT. İn Group 2, 27 (87%) patients died and 4 (13%) patients were recovered. The predominance of comorbidity and presence of more than one additional disease (p < 0.05), the excessive number of inpatients in intensive care unit (ICU) (p < 0.05), high mortality rates (p < 0.05), advanced age (p < 0.05), and long hospitalization periods (p < 0.05) were evident in Group 2. Serum levels of variables such as white blood cells (WBC), neutrophils, C-reactive protein (CRP), procalcitonin (PCT), ferritin, D-dimer, glucose, lactate dehydrogenase (LDH), and prothrombin time (PT) were high for patients in the Group 2 (p < 0.05) group. However, serum levels of lymphocyte, hemoglobin (HGB), and albumin were low. It can be argued that COVİD-19 AKI-RRRT is associated with higher mortality.