Fournier's gangrene: a dreadful disease

Abstract

Background: Although there is much consensus, certain controversies still exist regarding the pathology of Fournier's gangrene. The purpose of this study was to determine the prevalence of the disease in the catchment area of the three teaching hospitals, to identify the systemic predisposing factors and local aetiological factors, and to assess the recommended role of aggressive surgical debridement as a part of treatment.

Materials and methods: This prospective study was conducted in the surgical departments of three tertiary care hospitals of the Khyber Medical University, Peshawar, Pakistan, from 1 January 2002 to 30 June 2007. Detailed history and examination of all patients were carried out to reach the diagnosis of Fournier's gangrene. After initial resuscitation, patients were treated aggressively, including surgical debridement.

Results: Sixty patients were studied in the study period. The male to female ratio was 5:1. The age range was 20-75 years with mean 47+17.4 (SD) years. The socioeconomic status of patients was poor (the average income was less than $50 per week) in 36 (60%) and 24 (40%) were middle class (the average income being $50-100 per week). Thirty-nine patients (65%) presented in the hot humid months of the year. Extent of the disease was scrotum in 18 patients (30%), perineum in 30 (50%) and abdominal wall in 12 (20%). Systemic predisposing factors identified in our study were diabetes mellitus in 20 (33.33%) patients, chronic alcohol abuse in two (3.33%) and long-standing steroid therapy in four (6.67%) while in 34 patients (56.67%) no cause was identified. The local aetiological origin of Fournier's gangrene was urogenital in 14 (23.33%) patients, anorectal in 10 (16.67%) and cutaneous in 8 (13.33%) and no local pathologies could be identified in 28 (46.67%) patients. The mean time interval between first symptom and initial treatment was 2.5 days with a range of 1-7 days. Number of debridement sessions per patient was 2-6 (mean, 3.15). Mean hospital stay was 31+7 (SD) with a range of 10-50 days. Morbidity was 80%. Four patients (6.67%) died. Three of these patients presented to hospital 5-6 days too late.

Conclusion: Fournier's gangrene is not an uncommon disease in South Asia. Systemic predisposition such as diabetes mellitus, long-standing steroid therapy, chronic alcoholism and even the hot humid season can contribute to this dreadful disease. Local causes in the form of urogenital, anorectal and cutaneous disorders may trigger this disease in some patients. Early recognition of disease and aggressive surgical debridement are the main treatments.