Résumé

Introduction: Gangrene of the external genitalia (GGE) is a necrotizing fasciitis of the external genitalia and perineum linked to thrombosis of small subcutaneous vessels, resulting in gangrene of the skin. The aim of this study is to describe the epidemiological, clinical, and therapeutic aspects and outcomes of a series of 64 cases of GGE and to identify risk factors. Methodology: We conducted a retrospective study of GOGE cases treated at the urology department of the national reference university hospital in N'Djamena from January 2016 to December 2021. The variables studied were clinical, paraclinical, therapeutic and evolutionary. Results: A total of 64 patients met our inclusion criteria. The mean age of the patients was 43 years. The identified risk factors were: diabetes (35.9%), smoking (20.3%), alcoholism (17.2%), hypertension (7.8%), and HIV (4.7%). Urethral stricture was the main etiology (54.7%). Hyponatremia (7.8%) and hypokalemia (9.2%) were also present. The pathogens identified by cytobacteriological examination of the pus were: E. coli (39.1%), Staphylococcus (23.4%), Pseudomonas (17.2%). Resuscitation measures and necrosectomy were systematic. Colostomy was performed in 17.2% of cases, with secondary suturing in 85.5%. The average length of hospital stay was 31 days. The mortality rate was 10.9%. Conclusion: Gastrointestinal edema (GIE) is common and life-threatening. It complicates urethral strictures and is exacerbated by immunosuppression. Management is multidisciplinary.

Mot-clés :

Necrotizing Fasciitis. Diabetes. Hypertension. Urethral Stricture. Necrosectomy