Patterns of Primary Focal Segmental Glomerulosclerosis (FSGS) in Adults Treated in a Dakar Single Center: About 58 Cases

Abstract

Introduction: The evolution of primary FSGS is often marked by the occurrence of relapse and corticosteroid resistance and the therapeutic options are numerous and have limited effectiveness. The objective of our study was to assess our practice in this lesion. Patients and Methods: We carried out a retrospective study of patients treated for primary FSGS the period January 1, 2010 to September 30, 2018. The clinical pathological, therapeutic and evolutive characteristics were studied. Results: Fifty-eight patients were included in the study. The average age was 30.74 ± 11.35 years and the sex ratio (M/F) was 2.41. Edema was found in 86.2% and hypertension in 37.9%. The average creatinine was 20.17 ± 16.06 mg/l and the average GFR according to MDRD was 82.43 ± 69.06 ml/min/1.73 m2. The average albumin level was 15.11 ± 5.78 g/l and the 24-hour proteinuria was 7.8 ± 3.79 g/24 h. Nephrotic syndrome was the main indication for renal biopsy in 84.48% and the classic form of FSGS was found in 90.9%. The average initial corticosteroid dose was 62.68 ± 10.04 mg/d and the average duration of regression was 11.78 ± 7.40 months. Forty-five patients (77.6%) were corticosensitive (27.6% complete remission and 50% partial remission). Corticosteroid resistance was observed in 19% and corticosteroid dependence in 11.1%. The proportion of relapse was 33.3% within an average of 15.4 ± 9.1 months. Cyclosporine was no longer prescribed as a second-line treatment in 8 patients. Infectious complications were more found in 19%. Two patients had progressed to ESRD and we noted 2 death cases. The male gender was correlated with the occurrence of a relapse. However, the impact of certain factors such as hypertension, proteinuria, hematuria and GFR level has not been demonstrated. Conclusion: The evolution of primary FSGS is unpredictable, often marked by relapses, hence the interest in identifying factors associated with therapeutic responses for better management.