Alejandro Vela-Torres, Servicio de Coloproctología, Hospital General de México “Dr. Eduardo Liceaga”, Ciudad de México, México
Juan A. Villanueva-Herrero, Unidad de Fisiología Anorrectal, Servicio de Coloproctología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México
Eduardo Alvarado-Tamez, Unidad de Fisiología Anorrectal del Servicio de Coloproctología, Hospital General de México “Dr. Eduardo Liceaga”, Ciudad de México, México
Gisela G. Oropeza-Rodríguez, Unidad de Fisiología Anorrectal del Servicio de Coloproctología, Hospital General de México “Dr. Eduardo Liceaga”, Ciudad de México, México
Jeziel K. Ordóñez-Juárez, Unidad de Fisiología Anorrectal del Servicio de Coloproctología, Hospital General de México “Dr. Eduardo Liceaga”, Ciudad de México, México
Juan C. Fernández-Hernández, Dirección de Investigación, Hospital General de Mexico, “Dr. Eduardo Liceaga”, Ciudad de México, México
Xanat Z. Maldonado-Jimenez, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México (UNAM), Estado de México, México
Liset Márquez-Olivar, Escuela Superior de Medicina, Instituto Politécnico Nacional (IPN), Ciudad de México, México
Bertha A. Dimas-Sánchez, Servicio de Coloproctología, Hospital General de México “Dr. Eduardo Liceaga”, Ciudad de México, México
Billy Jiménez-Bobadilla, Servicio de Coloproctología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México
Objective: To evaluate the prognostic value of the CONUT (Controlling Nutritional Status) score as a predictor of morbidity, mortality, and length of hospital stay in patients with anorectal-origin Fournier’s gangrene admitted to a tertiary referral center in Mexico. Methods: An observational, retrospective, analytical study was conducted including 80 patients with Fournier’s gangrene hospitalized between January 2020 and September 2025. The CONUT score was calculated at hospital admission. Patients were stratified into two groups: without nutritional risk (CONUT < 2.0) and with nutritional risk (CONUT ≥ 2.0). Clinical, biochemical, and surgical variables were analyzed, along with primary outcomes: postoperative morbidity, mortality, and length of hospital stay. Results: Mean age was 50.2 ± 11.7 years with male predominance (79.8%). Overall mortality was 5.6%. Patients with elevated CONUT scores exhibited significantly higher postoperative morbidity (49.9 vs. 35.7%; p = 0.041) and prolonged hospital stay (median 18 vs. 13 days; p = 0.024) compared with those without nutritional risk. The CONUT score was associated with elevated neutrophil-to-lymphocyte ratio values (p = 0.016). Although a higher mortality trend was observed in the elevated CONUT group, this difference did not reach statistical significance. Conclusions: The CONUT score constitutes an accessible, reproducible, and cost-effective tool for nutritional assessment and early prognostic stratification in patients with anorectal-origin Fournier’s gangrene, showing significant association with increased postoperative morbidity and prolonged hospital stay.
Keywords: Anal abscess. Anal fistula. Anal pain. Hemorrhoidal disease. Rectal neoplasm.