Risk Factors of Renal Failure in HIV Patients at Initiation of ARV Treatment: Retrospective Study of 3118 Patients Followed in Infectious Diseases Department at Lomé University Hospital

Abstract

HIV infection is a major cause of chronic kidney disease, associated with high morbidity and mortality in sub-Saharan Africa. The objective of this study is to assess the prevalence and risk factors of renal disease at initiation of antiretroviral therapy. This was a descriptive and analytical retrospective study carried out in the infectious and tropical diseases department at Sylvanus Olympio University Hospital. The data have been extracted from the ESOPE software. Kidney disease was defined by a GFR, estimated by MDRD (Modification of Diet in Renal Disease) formula, less than 60 ml/min/1.73 m 2 . Risk factors associated with kidney disease were assessed using univariate and multivariate analysis. There were 3118 HIV-infected patients included in our study. The median estimated filtration rate was 94.7 ml/min/1.73 m 2 : 2.9% had an eGFR < 15 ml/min/1.73 m 2 . 1303 had kidney disease (41.8%). Most patients (30.8%) were in the WHO clinical stage 1. The median CD4 count was 165/μL [IQR = 72 - 274/μL]; the median hemoglobin level was 10.4 g/dL [IQR = 8.8 - 11.9 g/dL]; all patients had thrombocytopenia less than 100.000/mm 3 ; 8.5% had leukocytosis greater than 10.000/mm 3 . Most of patients had HIV1. In the multivariate analysis, age greater than 40 years (p < 0.0001), and female gender and hyperleukocytosis greater than 10,000/mm 3 were significantly associated with renal disease. The prevention of kidney disease must go through the identification of its risk factors in the target populations.