Epidemiology of a cohort of 450 urolithiasis at the Yalgado Ouedraogo university hospital of Ouagadougou (Burkina Faso)

Objective. - To report the epidemiological and diagnosis characteristics of urolithiasis in the city of Ouagadougou (Burkina Faso). Patients and methods. - We performed a retrospective and descriptive study of a cohort of urolithiasis patients from January 2009 to December 2011 at the department of urology of the Yalgado Ouedraogo University hospital of Ouagadougou. The minimum required data were: age, gender, occupation, residence, complete medical observation and medical imaging results. Results. - Four hundred and fifty patients with a median age of 35 years were included in this study. Urinary stones prevalence was 12.5%. There was a male predominance with a sex ratio of 1.91. Renal colic found in 32% of patients was the main pattern of consultation. Urinary schistosomiasis was the main etiological factor correlated with the occurrence of urolithiasis (P < 0.05). The majority of urinary stones in this study were located in the upper urinary tract (86.5%). Complications were dominated by urinary tract infections (45.2%) and obstructive renal failure (8.9%). Conclusion. - The characteristics of urolithiasis in our center were similar to those reported in the developing world but seem to evolve toward those of industrialized countries. (C) 2013 Elsevier Masson SAS. All rights reserved.