Sistema de puntuación uretral (U-score) simplificado para predecir la uretroplastia anterior compleja / Simplified urethral score system for predicting complex anterior urethroplasty

Objetivo: Evaluar los valores individuales del U-score como factores predictores de la cirugía uretral compleja.Métodos: Estudio transversal que incluye a los pacientes que recibieron una uretroplastia anterior entre 2011 y 2019. Se midieron las variables del U-score (etiología [1-2 puntos], número de estenosis [1-2 puntos], localización anatómica (1-2 puntos) y longitud [1-3 puntos]) de manera individual y total. La complejidad quirúrgica se definió como baja (anastomosis, injerto de mucosa oral y uretroplastia anterior ampliada) y alta (injerto doble de mucosa oral, colgajo y combinación de injerto y colgajo). Los componentes del U-score se incluyeron como predictores de cirugía compleja y como variables principales con estimaciones y comparaciones de los valores de probabilidad individuales. Se establecieron grupos según la probabilidad de riesgo de cirugía compleja.Resultados: Se incluyeron 654 pacientes. La edad media fue de 57,2 años. Se realizó cirugía de baja complejidad en 464 pacientes (259 anastomosis, 144 injertos, 61 uretroplastia anterior aumentada) y de alta complejidad en 190 (53 injerto doble de mucosa oral, 27 colgajo, 110 combinación injerto/colgajo). En el análisis multivariante, la longitud, el número de estenosis y la localización fueron predictores de complejidad. La introducción del U-score como única variable en el modelo univariante predijo una OR de 8,52 (IC 95%: 6,1-11). Los grupos del U-score simplificado obtenidos por probabilidad de complejidad fueron: riesgo bajo (4-5 puntos), riesgo intermedio (6 puntos) y riesgo alto de complejidad (7-9 puntos) La predicción del riesgo de probabilidad de cirugía compleja (IC 95%) para el grupo de riesgo bajo, medio y alto fue de 1,6 (0-2,9), 19,1 (13,8-25,9) y 77,9 (61,6-88,7), respectivamente.Conclusiones: El U-score puede utilizarse como una herramienta predictiva de la cirugía uretral compleja. Presentamos la herramienta de riesgo U-score simplificado para evaluar

Objective: To assess U-score individual values as urethral complex surgery predictors.Methods: Cross-sectional study including patients who received anterior urethroplasty from 2011 to 2019. U-score (etiology (1-2 points), number of strictures (1-2 points), anatomic location (1-2 points) and length (1-3 points)) was measured individually and globally. Surgical complexity was defined as low (anastomotic, buccal mucosal graft, and augmented anterior urethroplasty), and high complexity (double buccal mucosal graft, flap, and graft/flap combination). U-score components were included as complex surgery predictor and as main variable with individual probability values estimations and comparisons. Risk complex surgery probability groups were established.Results: 654 patients were included. Mean age was 57.2 years. Low complexity surgery was performed in 464 patients (259 anastomotic, 144 graft, 61 augmented anterior urethroplasty) and high complexity was done in 190 (53 double buccal mucosa graft, 27 flap, 110 graft/flap comb.). In multivariate analysis length, number of strictures and location were predictors of complexity. Introducing U-Score as only variable in univariate model predicted an OR 8.52 (95%CI 6.1-11). Simplified U-score grouping set obtained by complex probability was: low risk (4-5 points), medium risk (6 points) and high risk of complexity (7-9 points) Predicted risk of complex surgery probability (95%CI) for low, median and high risk group were 1.6 (0-2.9), 19.1 (13.8-25.9) and 77.9 (61.6-88.7), respectively.Conclusions: U-score can be used as a tool to predict complex urethral surgery. We present a simplified U-score risk tool to assess individual complex anterior urethroplasty probability (AU)

Simplified urethral score system for predicting complex anterior urethroplasty.

OBJECTIVE: To assess U-score individual values as urethral complex surgery predictors. METHODS: Cross-sectional study including patients who received anterior urethroplasty from 2011 to 2019. U-score (etiology (1-2 points), number of strictures (1-2 points), anatomic location (1-2 points) and length (1-3 points)) was measured individually and globally. Surgical complexity was defined as low (anastomotic, buccal mucosal graft, and augmented anterior urethroplasty), and high complexity (double buccal mucosal graft, flap, and graft/flap combination). U-score components were included as complex surgery predictor and as main variable with individual probability values estimations and comparisons. Risk complex surgery probability groups were established. RESULTS: 654 patients were included. Mean age was 57.2 years. Low complexity surgery was performed in 464 patients (259 anastomotic, 144 graft, 61 augmented anterior urethroplasty) and high complexity was done in 190 (53 double buccal mucosa graft, 27 flap, 110 graft/flap comb.). In multivariate analysis length, number of strictures and location were predictors of complexity. Introducing U-Score as only variable in univariate model predicted an OR 8.52 (95%CI 6.1-11). Simplified U-score grouping set obtained by complex probability was: low risk (4-5 points), medium risk (6 points) and high risk of complexity (7-9 points) Predicted risk of complex surgery probability (95%CI) for low, median and high risk group were 1.6 (0-2.9), 19.1 (13.8-25.9) and 77.9 (61.6-88.7), respectively. CONCLUSIONS: U-score can be used as a tool to predict complex urethral surgery. We present a simplified U-score risk tool to assess individual complex anterior urethroplasty probability.