Clinical features and treatment outcomes of Fournier's gangrene in a single tertiary emergency hospital: Simplified Fournier's Gangrene Severity Index score is a predictor for death

To assess the predictive reliability of the Simplified Fournier's Gangrene Severity Index Score (SFGSI) for mortality in Japanese patients with Fournier's gangrene (FG), we compared the clinical features and outcomes of a patient sample with the SFGSI. The medical records of 36 patients diagnosed with FG at our hospital between October 2007 and September 2022 were reviewed retrospectively. Clinical and laboratory variables, including SFGSI, were evaluated and predictive factors for fatality were investigated using multivariate logistic regression analysis. The median age and body mass index were 65 and 24.2, respectively. Eight patients had cooccurring chronic kidney disease and 23 had diabetes. None were taking sodium-glucose co-transporter-2 (SGLT-2) inhibitors. The causative organisms were diverse, and no specific trends in causative organisms were observed. 26 patients underwent debridement of necrotic tissue including eight colostomies, two orchiectomies, and one cystectomy. Multivariate logistic regression analysis revealed that SFGSI alone was an independent predictor of case fatality, with an odds ratio of 20.167 (95% CI: 1.66-245.53). In conclusion, the fatality rate was 19.4%, which was comparable to that reported in other studies. The SFGSI was an independent predictor of mortality in this study.