Features of the course of the new coronavirus infection COVID-19 in patients with chronic kidney disease

Abstract

BACKGROUND: CKD is one of the main comorbidities in those who die from COVID-19. Renal injury is the most common nonpulmonary infection of SARS-CoV-2 and has a wide range of manifestations, ranging from mild proteinuria and hematuria to progressive acute kidney injury (AKI) requiring renal replacement therapy (RRT).THE AIM: to study the features of the course of the new coronavirus infection COVID-19 in patients with chronic kidney disease.PATIENTS AND METHODS: The study included 79 patients with confirmed new coronavirus infection COVID-19 who hospitalized. The first group consisted of people with a history of CKD (44 people), the second group included people without a history of CKD (35 people). The diagnosis of CKD established based on the calculation of glomerular filtration rate using the CKD-EPI formula. The comorbidity index calculated using two scales: Charlson and CIRS-G. Statistical data analysis carried out using the Statistica 12.0 application package (StatSoft Inc., USA).RESULTS: Patients with COVID-19 and CKD had a higher comorbidity index: according to the Charlson index in one group of patients the indicator was 7 [5.0-9.0], and in group 2 it was 5 [4.0-6.0] (p<0.001). According to the CIRS-G index, in one group the indicator was 9 [7-11.5], in two group it was 4 [2-6] (p <0.001). Patients in one group had a greater degree of damage to the lung tissue according to MSCT of the OGK; in laboratory tests, the levels of CRP, ferritin, LDH, and d-dimer were higher; leukocytosis with a neutrophil shift in the leukocyte count observed.CONCLUSION: Patients with a history of chronic kidney disease (CKD) had more severe COVID-19 and higher mortality.