Prevalence and management of urinary incontinece after pelvic organ prolapse surgery (sacrocolpopexy). A literature review.

INTRODUCTION: Stress urinary incontinence (SUI) is frequently associated with pelvic organ prolapse (POP) and may occur after its surgical treatment. AIM: To determine the incidence, risk factors and management of SUI during and after POP surgery through a review of the available literature. MATERIALS AND METHOD: Narrative literature review on the incidence and management of SUI after POP surgery after search of relevant manuscripts indexed in PubMed, EMBASE and Scielo published in Spanish and English between 2013 and 2023. RESULTS: Occult SUI is defined as visible urine leakage when prolapse is reduced in patients without SUI symptoms. De novo SUI develops after prolapse surgery without having previously existed. In continent patients, the number needed to treat (NNT) to prevent one case of de novo SUI is estimated to be 9 patients and about 17 to avoid repeat incontinence surgery. In patients with occult UI, the NNT to avoid repeat incontinence surgery is around 7. Patients with POP and concomitant SUI are the group most likely to benefit from combined surgery with a more favorable NNT (NNT 2). CONCLUSION: Quality studies on combined surgery for treatment SUI and POP repair are lacking. Continent patients with prolapse should be warned of the risk of de novo SUI, although concomitant incontinence treatment is not currently recommended. Incontinence surgery should be considered on an individual basis in patients with prolapse and SUI.

Carcinomatosis peritoneal tras nefrectomía parcial laparoscópica en carcinoma de células renales: nuestra experiencia y revisión de la literatura / Peritoneal carcinomatosis after partial nephrectomy for renal cell carcinoma: Our experience and literature review

Objetivo: La carcinomatosis peritoneal asociada al carcinoma de células renales es una entidad infrecuente, normalmente asociada a grandes masas renales, siendo muy rara su presentación tras la cirugía de tumores renales localizados. Nuestro objetivo es revisar la literatura y analizar los factores implicados en el desarrollo de carcinomatosis peritoneal tras nefrectomía parcial laparoscópica en tumores localizados.Material y métodos: Presentamos nuestra experiencia con 2 casos de carcinomatosis peritoneal tras cirugía parcial laparoscópica. Realizamos revisión de la literatura y analizamos los factores asociados al desarrollo de carcinomatosis peritoneal tras cirugía parcial laparoscópica en carcinoma de células renales.Resultados: Entre 2005-2018 en nuestro servicio fueron sometidos a nefrectomía parcial laparoscópica 225 pacientes por neoplasia renal localizada. Dos pacientes desarrollaron carcinomatosis peritoneal en el seguimiento, uno al año y medio de la cirugía y un segundo caso a los 7 años. Pocos casos de carcinomatosis peritoneal tras cirugías de neoplasia renal han sido descritos en la literatura, estando más frecuentemente asociados a grandes masas renales, con múltiples metástasis al diagnóstico, siendo el pronóstico infausto. Entre los factores implicados en su desarrollo pueden estar la diseminación de células tumorales durante la cirugía, la extensión tumoral directa o la metástasis por vía hematógena.Conclusiones: La carcinomatosis peritoneal tras nefrectomía parcial laparoscópica constituye un evento muy raro, pero que debe ser tenido en cuenta y, dado que es el único factor en el que podemos influir, extremar al máximo las precauciones durante el acto quirúrgico, siguiendo los principios oncológicos. (AU)

Objective: Peritoneal carcinomatosis associated with renal cell carcinoma is an infrequent entity, usually associated with large renal masses, and with a very rare presentation after surgery of localized renal tumors. Our objective is to review the literature and analyze the factors involved in the development of peritoneal carcinomatosis after laparoscopic partial nephrectomy in localized tumors.Material and methods: We present our experience with two cases of peritoneal carcinomatosis after laparoscopic partial nephrectomy. We reviewed the literature and analyzed the factors associated with the development of peritoneal carcinomatosis after laparoscopic partial surgery in renal cell carcinoma.Results: Between 2005-2018, 225 patients underwent laparoscopic partial nephrectomy for localized renal neoplasia in our service. Two patients developed peritoneal carcinomatosis during follow-up, at 1.5 and 7 years after surgery. Few cases of postoperative peritoneal carcinomatosis for renal neoplasia have been described in the literature, being more frequently associated with large renal masses, with multiple metastases at diagnosis, with a poor prognosis. The dissemination of tumor cells during surgery, direct tumor extension or metastasis by hematogenous route, are among the factors involved in the development of this condition.Conclusions: Peritoneal carcinomatosis after laparoscopic partial nephrectomy constitutes a very rare event. However, it should be taken into consideration, and, since it is the only factor we can influence, we must maximize precautions during the surgical act, following oncological principles. (AU)

Peritoneal carcinomatosis after partial nephrectomy for renal cell carcinoma: Our experience and literature review.

OBJECTIVE: Peritoneal carcinomatosis associated with renal cell carcinoma is an infrequent entity, usually associated with large renal masses, and with a very rare presentation after surgery of localized renal tumors. Our objective is to review the literature and analyze the factors involved in the development of peritoneal carcinomatosis after laparoscopic partial nephrectomy in localized tumors. MATERIAL AND METHODS: We present our experience with two cases of peritoneal carcinomatosis after laparoscopic partial nephrectomy. We reviewed the literature and analyzed the factors associated with the development of peritoneal carcinomatosis after laparoscopic partial surgery in renal cell carcinoma. RESULTS: Between 2005-2018, 225 patients underwent laparoscopic partial nephrectomy for localized renal neoplasia in our service. Two patients developed peritoneal carcinomatosis during follow-up, at 1.5 and 7 years after surgery. Few cases of postoperative peritoneal carcinomatosis for renal neoplasia have been described in the literature, being more frequently associated with large renal masses, with multiple metastases at diagnosis, with a poor prognosis. The dissemination of tumor cells during surgery, direct tumor extension or metastasis by hematogenous route, are among the factors involved in the development of this condition. CONCLUSIONS: Peritoneal carcinomatosis after laparoscopic partial nephrectomy constitutes a very rare event. However, it should be taken into consideration, and, since it is the only factor we can influence, we must maximize precautions during the surgical act, following oncological principles.

Nefrectomía parcial y radical laparoscópica en tumores renales cT1. Análisis comparativo de complicaciones y supervivencia / Laparoscopic nephron sparing surgery and radical nephrectomy in cT1 renal tumors. Comparative analysis of complications and survival

Introducción y objetivos: Análisis comparativo de complicaciones postoperatorias y supervivencia entre nefrectomía parcial (NP) y radical (NR) laparoscópica en cáncer de células renales (CCR) cT1.Material y método: Estudio retrospectivo de pacientes birrenos con tumor renal único cT1 tratados en nuestro centro entre los años 2005 y 2018 mediante NP o NR laparoscópica.Resultados: Cumplieron los criterios de inclusión para el estudio 372 pacientes. Fueron tratados mediante NR 156 (41,9%) y 216 (58,1%) mediante NP. En 10 (4,6%) NP y 6 (3,9%) NR hubo complicaciones Clavien Dindo III-V (p = 0,75). El índice de comorbilidad de Charlson (ICC) se identificó como variable predictora independiente de complicaciones (p = 0,02), no influyendo el tipo de cirugía en el análisis multivariante. La estimación de la supervivencia global (SG) fue de 81,2 y de 56,8% a los 5 y 10 años en el grupo de NR y de 90,2 y 75,7% en el grupo de NP, respectivamente (p = 0,0001). Se identificaron como factores predictores de mortalidad global la obesidad (HR 2,77, p = 0,01), el ICC ≥ 3 (HR 3,69, p = 0,001) y el FG<60 mL/min/1,73 m2 al alta (HR 1,87,p = 0,03). El tipo de nefrectomía no demostró influencia en la SG. La estimación de la supervivencia libre de recidiva (SLR) fue de 86,1% a los 5 y 10 años en el grupo de NR y de 93,5 y 83,6% en el grupo de NP respectivamente (p = 0,22).Conclusiones: La NP laparoscópica no es inferior a la NR en términos de seguridad oncológica y quirúrgica en el CCR cT1. El tipo de nefrectomía no influyó en la SG del paciente, sin embargo, sí se comportaron como factores predictores la obesidad, el índice Charlson ≥ 3 y el FG<60 mL/min/1,73 m2 al alta (AU)

Introduction and objectives: Comparative analysis of postoperative complications and survival between laparoscopic partial nephrectomy (PN) and radical nephrectomy (RN) in cT1 renal cell carcinoma (RCC).Material and method: Retrospective study of patients with two kidneys and single renal tumor cT1 treated in our center between 2005 and 2018 by laparoscopic PN or RN.Results: 372 patients met the inclusion criteria for the study. RN was performed in 156 (41.9%) patients and PN in 216 (58.1%). Clavien Dindo III-V complications were observed in 10 (4,6%) PN and 6 (3,9%) RN patients (p = 0.75). The comorbidity Charlson index (CCI) was identified as an independent predictor variable of complications (p = 0.02) and surgical approach did not affect multivariate analysis. Estimated overall survival (OS) was 81.2% and 56.8% at 5 and 10 years in the RN group and 90.2% and 75.7% in the PN group, respectively (p = 0.0001). Obesity (HR 2.77, p = 0.01), CCI ≥ 3 (HR 3.69, p = 0.001) and glomerular filtration rate (GFR) < 60 mL/min/1.73m2 at discharge (HR 1.87, p = 0.03) were identified as predictors of overall mortality. Nephrectomy approach showed no influence on OS. Estimated recurrence-free survival (RFS) was 86.1% at 5 and 10 years in the RN group and 93.5% and 83.6% in the PN group, respectively (p = 0.22).Conclusions: Laparoscopic PN is not inferior to RN in terms of oncologic and surgical safety in cT1 RCC. Nephrectomy approach did not influence patient OS, however, obesity, CCI ≥ 3 and GFR<60 mL/min/1.73m2 at discharge did behave as predictors (AU)

Laparoscopic nephron sparing surgery and radical nephrectomy in cT1 renal tumors. Comparative analysis of complications and survival.

INTRODUCTION AND OBJECTIVES: Comparative analysis of postoperative complications and survival between laparoscopic partial nephrectomy (PN) and radical nephrectomy (RN) in cT1 renal cell carcinoma (RCC). MATERIAL AND METHOD: Retrospective study of patients with two kidneys and single renal tumor cT1 treated in our center between 2005 and 2018 by laparoscopic PN or RN. RESULTS: 372 patients met the inclusion criteria for the study. RN was performed in 156 (41.9%) patients and PN in 216 (58.1%). Clavien Dindo III-V complications were observed in 10 (4,6%) PN and 6 (3,9%) RN patients (p = 0.75). The comorbidity Charlson index (CCI) was identified as an independent predictor variable of complications (p = 0.02) and surgical approach did not affect multivariate analysis. Estimated overall survival (OS) was 81.2% and 56.8% at 5 and 10 years in the RN group and 90.2% and 75.7% in the PN group, respectively (p = 0.0001). Obesity (HR 2.77, p = 0.01), CCI ≥ 3 (HR 3.69, p = 0.001) and glomerular filtration rate (GFR) <60 mL/min/1.73 m2 at discharge (HR 1.87, p = 0.03) were identified as predictors of overall mortality. Nephrectomy approach showed no influence on OS. Estimated recurrence-free survival (RFS) was 86.1% at 5 and 10 years in the RN group and 93.5% and 83.6% in the PN group, respectively (p = 0.22). CONCLUSIONS: Laparoscopic PN is not inferior to RN in terms of oncologic and surgical safety in cT1 RCC. Nephrectomy approach did not influence patient OS, however, obesity, CCI ≥ 3 and GFR <60 mL/min/1.73 m2 at discharge did behave as predictors.

Migración intravesical de dispositivo intrauterino / Intravesical migration of intrauterine device

No disponible

Modelo predictivo de mortalidad en pacientes con tumor urotelial de vejiga tras cistectomía radical / Mortality prediction model for patients with bladder urothelial tumor after radical cystectomy

OBJETIVO: Elaborar un modelo predictivo de mortalidad cáncer específica (MCE) a 1, 3, y 5 años basándonos en variables clínicas precirugía y patológicas poscirugía en pacientes con tumor urotelial vesical tratados con cistectomía radical. MATERIAL Y MÉTODOS: Análisis retrospectivo de 517 pacientes diagnosticados de tumor urotelial vesical y tratados con cistectomía radical (1986 y 2009). Se recogieron variables demográficas, clínicas, quirúrgicas y patológicas, así como complicaciones acontecidas y evolución tras cistectomía radical. Análisis comparativo con test de Chi cuadrado y ANOVA. Cálculo de supervivencia con método de Kaplan-Meier y test de log-rank. Análisis univariante y multivariante mediante regresión logística para identificar las variables predictoras independientes de MCE. Se calculó la probabilidad individual de MCE a 1, 3 y 5 años según la ecuación general (función logística). La calibración se obtuvo mediante método de. Hosmer-Lemeshow y la discriminación con elaboración de una curva ROC (área bajo la misma). RESULTADOS: El tumor urotelial vesical fue la causa de muerte en 225 pacientes (45%). Se obtuvo una MCE el 1.°, 3.° y 5.° años del 17%, 39,2% y 46,3% respectivamente. El estadio pT y pN se identificaron como variables pronósticas independientes de MCE al 1.°, 3.° y 5.° años. Se construyeron 3 modelos predictivos. La capacidad predictiva fue del 70,8% (IC95% 65-77%, p = 0,000) para el 1.° año, del 73,9% (IC95% 69,2-78,6%, p = 0,000) para el 3.° año y del 73,2% (IC95% 68,5-77,9%, p = 0,000) para el 5.° año. CONCLUSIONES: El modelo predictivo permite estimar el riesgo de MCE a los 1, 3 y 5 años con fiabilidad del 70,8, 73,9 y 73,2% respectivamente

OBJECTIVE: Based on preoperative clinical and postoperative pathological variables, we aim to build a prediction model of cancer specific mortality (CSM) at 1, 3, and 5 years for patients with bladder transitional cell carcinoma treated with RC. MATERIAL AND METHODS: Retrospective analysis of 517 patients with diagnosis of cell carcinoma treated by RC (1986-2009). Demographic, clinical, surgical and pathological variables were collected, as well as complications and evolution after RC. Comparative analysis included Chi square test and ANOVA technique. Survival analysis was performed using Kaplan-Meier method and log-rank test. Univariate and multivariate analyses were performed using logistic regression to identify the independent predictors of CSM. The individual probability of CSM was calculated at 1, 3 and 5 years according to the general equation (logistic function). Calibration was obtained by the Hosmer-Lemeshow method and discrimination with the elaboration of a ROC curve (area under the curve). RESULTS: BC was the cause of death in 225 patients (45%); 1, 3 and 5-year CSM were 17%, 39.2% and 46.3%, respectively. The pT and pN stages were identified as independent prognostic variables of CSM at 1, 3 and 5 years. Three prediction models were built. The predictive capacity was 70.8% (CI 95% 65-77%, p = .000) for the 1st year, 73.9% (CI95% 69.2-78.6%, p = .000) for the third and 73.2% (CI% 68.5-77.9%, p = .000) for the 5th year. CONCLUSIONS: The prediction model allows the estimation of CSM risk at 1, 3 and 5 years, with a reliability of 70.8%, 73.9% and 73.2%, respectively

Evaluación del abordaje laparoscópico en la cistectomía radical desde la implantación hasta su consolidación: validación interna / Evaluation of laparoscopic approach in radical cystectomy from implementation to consolidation: Internal validation

INTRODUCCIÓN Y OBJETIVOS: Las Guidelines de la AEU de 2017, consideran el acceso laparoscópico o asistido por robot como procedimientos en investigación. La curva de aprendizaje se define por el número mínimo de casos que es necesario realizar para reproducir la técnica considerada como estándar. El objetivo de este estudio es analizar en el mismo servicio, la implantación de un programa de cistectomía laparoscópica (CRL), comparándolo con un programa consolidado y estandarizado de cistectomía abierta (CRA). Material y MÉTODO: Análisis de cohortes retrospectivo de dos grupos de cistectomías: CRL (n = 196) (2006-2016) frente a CRA (n = 96) (2003-2005).comparación de la evolución en el tiempo de los siguientes parámetros: tiempo quirúrgico, las necesidad de transfusión, el estado de los márgenes quirúrgicos de resección, las complicaciones postoperatorias, la duración de la estancia hospitalaria y las recidivas. Se han definido 3 periodos de tiempo para CRL: implantación (2006-09) (CRLI), desarrollo (2010-14) (CRL-D) y consolidación (2015-16) (CRL-C); comparándose cada uno de ellos con el grupo control (CRA). Para el contraste de variables cualitativas se ha utilizado el test de la Chi cuadrado y para las variables numéricas el test de Anova. RESULTADOS: La CRL, en comparación con la CRA, presentó un mayor tiempo quirúrgico en las fases de CRL-I y CRL-D, observando una tendencia de menores tiempos operatorios que la CRA en el periodo de consolidación. La CRL presenta además menor trasfusión intraoperatoria en los 3 periodos y postoperatoria en CRL-D y CRL-C, menos complicaciones totales en CRL-D y CRL-C, menos complicaciones graves (Clavien ≥ 3) en las 3 fases; así como una disminución de la mortalidad y estancia hospitalaria desde la fase de CRL-I, consolidándose esta disminución en los otros dos periodos de estudio. No hemos observado diferencias significativas entre CRA y CRL en cuanto a márgenes quirúrgicos y recurrencias ni en el total de la serie ni en la comparación entre los distintos periodos, lo que avala la seguridad de la CRL, desde su inicio. CONCLUSIONES: La CRL frente a CRA mejora desde su implantación el porcentaje de transfusiones, de complicaciones y la estancia hospitalaria, con seguridad oncológica, a expensas de un mayor tiempo quirúrgico en las fases de implantación y DESARROLLO: Sin embargo, en nuestra serie observamos una tendencia de menores tiempos quirúrgicos que la CRA en el periodo de consolidación. En nuestro servicio el abordaje laparoscópico se ha validado en el tratamiento de la cistectomía radical

INTRODUCTION AND OBJECTIVES: The AEU Guidelines of 2017 consider laparoscopic and robot-assisted approaches as investigational procedures. The surgical learning curve is defined as the minimum number of cases that a surgeon has to perform in order to reproduce a technique considered as standard. The aim of this study is to analyze, within our department, the implementation of a laparoscopic radical cystectomy (LRC) program compared with a well consolidated and standardized open radical cystectomy (ORC) program. MATERIAL AND METHODS: Retrospective cohort analysis of two cystectomy groups: LRC (n = 196) (20062016) vs. ORC (n = 96) (2003-2005).comparison of the evolution over time of the following parameters: operative time, blood transfusion rates, resection margins, postoperative complications, hospital stay and recurrence. Three time periods have been defined for LRC: implementation (2006-09) (LRC-I), development (2010-14) (LRC-D) and consolidation (2015-16) (LRC-C); comparing each of them with the control group (ORC). The chi-square test was used for the comparison of the qualitative variables and the Anova test for the numerical ones. RESULTS: When compared to ORC, LRC presented longer operative times in LRC-I and LRC-D periods. We observed a trend toward shorter operative time than ORC in the consolidation period (LRC-C). LRC also presented lower intraoperative transfusion rates in all periods and lower postoperative rates in CRL-D and CRL-C. Overall complications in LRC-D and LRC-C were lower in LRC, having fewer major complications (Clavien ≥ 3) in the 3 periods. A decrease in mortality and hospital stay after the LRC-I phase was also observed. These results were consolidated during the two last periods of the study. We have not observed significant differences between ORC and LRC when comparing surgical margins and recurrence rates, neither in the total series, nor in the comparison between the different periods. These results endorse the oncologic safety of LRC from the beginning of the implementation process. CONCLUSIONS: When compared to ORC, LRC improves perioperative transfusion rates, complications and hospital stay from its implementation period, maintaining oncological safety. On the contrary, longer operative times during implementation and development were observed. However, in our series, we observed a trend toward shorter operative times than ORC approach in the consolidation period. We have validated the laparoscopic approach for radical cystectomy in our service

Efecto de la quimioterapia adyuvante en el carcinoma urotelial de vejiga localmente avanzado tratado con cistectomía / Effect of adjuvant chemotherapy in locally advanced urothelial carcinoma of the bladder treated with cystectomy

INTRODUCCIÓN: El papel de la quimioterapia adyuvante (QTAdy) en el tumor vesical músculo-invasivo sigue siendo controvertido actualmente. OBJETIVO: Evaluar el efecto de la QTAdy en la supervivencia cáncer específica del tumor vesical músculo-invasivo tras cistectomía radical (CR). MATERIAL Y MÉTODOS: Análisis retrospectivo de 292 pacientes diagnosticados de tumor vesical urotelial tratados con CR entre 1986-2009 con estadio pT3-4pN0/+cM0, divididas en dos cohortes:185(63,4%) pacientes tratados con QTAdy y otra con 107(36,6%) sin QTAdy. Mediana de seguimiento de 40,5 meses (IQR 55-80,5). Análisis comparativo con test Chi cuadrado y t Student/ANOVA. Cálculo de supervivencia con el método de Kaplan-Meier y test de long-rank. Análisis multivariante (regresión de Cox) para identificar variables predictoras independientes de mortalidad cáncer específica (MCE). RESULTADOS: El 42,8% de la serie presentó afectación ganglionar tras CR. Al finalizar el seguimiento, 22,9% estaban libres de tumor vesical y 54,8% habían fallecido por esa causa. La mediana de supervivencia cáncer específica fue de 30 meses. No se observaron diferencias significativas en supervivencia cáncer específica en función del tratamiento con QTAdy en pacientes pT3pN0 (p = 0,25) ni pT4pN0 (p = 0,29), pero sí en pT3-4pN+ (p = 0,001). En el análisis multivariante se identificaron el estadio patológico (p = 0,0001) y el tratamiento con QTAdy (p = 0,007) como factores pronósticos independientes de MCE. La QTAdy redujo el riesgo de MCE (HR:0,59, IC95% 0,40-0,87, p = 0,007). CONCLUSIONES: El estadio pT y pN se identificaron como variables predictoras independientes de MCE tras CR. La administración de QTAdy en nuestra serie se comportó como factor protector reduciendo el riesgo de MCE, aunque en el análisis por estadios, únicamente los pacientes pN+ se vieron beneficiados

INTRODUCTION: Currently, the role of adjuvant chemotherapy (ADJ) in muscle invasive bladder tumor remains controversial. OBJECTIVE:To evaluate the effect of ADJ on cancer specific survival of muscle invasive bladder tumor after radical cystectomy (RC). MATERIAL AND METHODS: Retrospective analysis of 292 patients diagnosed with urothelial bladder tumor pT3-4pN0 / + cM0 stage, treated with RC between 1986-2009. Total cohort was divided in two groups: 185 (63.4%) patients treated with ADJ and 107 (36.6%) without ADJ. Median follow-up was 40.5 months (IQR 55-80.5).comparative analysis was performed with Chi-square test and Student's t test /ANOVA. Survival analysis was carried out with the Kaplan-Meier method and log-rank test. Multivariate analysis (Cox regression) was made to identify independent predictors of cancer-specific mortality (CSM). RESULTS: 42.8% of the series presented lymph node involvement after RC. At the end of follow-up, 22.9% were BC-free and 54.8% had died due to this cause. The median cancer specific survival was 30 months. No significant differences were observed in cancer specific survival regarding the treatment with ADJ in pT3pN0 (p = .25) or pT4pN0 (p = .29) patients, but it was significant in pT3-4pN+ (p = .001). Multivariate analysis showed pathological stage (p = .0001) and treatment with ADJ (p = .007) as independent prognostic factors for CSM. ADJ reduced the risk of CSM (HR:0.59,95% CI 0.40-0.87, p = .007). CONCLUSIONS: pT and pN stages were identified as independent predictors of CSM after RC. The administration of ADJ in our series behaved as a protective factor reducing the risk of CSM, although only pN+ patients were benefited in the stage análisis

Clasificación en grupos de riesgo de recurrencia tras nefrectomía por cáncer renal / Recurrence risk groups after nephrectomy for renal cell carcinoma

INTRODUCCIÓN: No existe consenso sobre el seguimiento tras nefrectomía por cáncer renal (CCR), siendo necesario establecer grupos de riesgo de recurrencia (GRR). OBJETIVO: Clasificar en GRR los CCR. MATERIAL Y MÉTODO: Análisis retrospectivo de 696 pacientes con cáncer renal intervenidos entre 1990-2010; 568 (81,6%) pacientes con nefrectomía radical y 128 (18,4%) con nefrectomía parcial. Se clasificaron las variables patológicas como variables de 1. er nivel: estadio pTpN y grado de Fuhrman y variables patológicas de 2. ° nivel (VP2N): diferenciación sarcomatoide (DS), necrosis tumoral (NT), infiltración microvascular y márgenes de resección (MR). Realizamos un análisis multivariante (regresión de Cox) para identificar las variables de 1. er nivel relacionadas con la recurrencia. Clasificamos a los pacientes en 3 GRR según las variables de primer nivel: bajo (GRB) < 25%, intermedio (GRI) 26-50% y alto (GRA) > 50%. Tras ello realizamos un análisis univariante y multivariante con las VP2N para cada GRR. Con estos datos se reclasificaron los pacientes en GRR+. Para la comparación de los GRR con los GRR+ se utilizaron curvas ROC. RESULTADOS: La mediana de seguimiento fue de 105 (IQR 63-148) meses. Recidivaron 177 (25,4%) PACIENTES: 111 (62,7%) con recidiva a distancia, 34 (19,2%) recidiva local y 32 (18%) a distancia y local. Se comportaron como factores predictores independientes de recurrencia el grado de Fuhrman (HR = 2,75; p = 0,0001) y el estadio pTpN (HR = 2,19; p = 0,0001). Se agruparon los pacientes en GRR (ABC = 0,76; p = 0,0001): - GRB (pT1pNx-0 G1-4; pT2pNx-0 G1-2): 456 (65,5%) pacientes. - GRI (pT2pNx-0 G3-4; pT3-4pNx-0 G1-2): 110 (15,8%) pacientes. - GRA (pT3-4pNx-0 G3-4; pT1-4pN+): 130 (18,6%) pacientes. Tras el análisis multivariable con las VP2N, los GRR se reclasificaron (GRR+) (ABC = 0,84; p = 0,0001): -GRB+: GRB sin NT, DS y/o MR(+). -GRI+: GRI; GRB con NT. -GRA+: GRA; GRB con DS y/o MR(+); GRI con NT y/o DS. CONCLUSIONES: La adición de las variables patológicas de segundo nivel a la clasificación, según las variables de primer nivel, mejora la capacidad de discriminación de la clasificación en GRR

INTRODUCTION: There is no consensus on the follow-up protocol after nephrectomy for renal cell carcinoma (RCC), and the identification of recurrence risk groups (RRG) is required. OBJECTIVE: Establish recurrence risk groups (RRG). Material and method: A retrospective analysis of 696 patients with renal cancer submitted to surgery between 1990-2010; 568 (81.6%) patients treated with radical nephrectomy and 128 (18.4%) treated with partial nephrectomy. Pathological variables were classified as: 1st-level variables (1LPV): pTpN stage and Fuhrman grade (FG); and 2nd level pathological variables (2LPV): sarcomatoid differentiation (SD), tumor necrosis (TN), microvascular invasion (MVI) and positive surgical margins (PSM). Univariate and multivariate analysis have been performed using Cox regression to determine 1LPV related to recurrence. Based on 1LPV, we classified patients into three RRG: Low (LRG) < 25%; Intermediate (IRG) 26-50% and High (HRG) > 50%. We performed univariate and multivariate analysis with the 2 LPVs for each RRG. With these data, patients were reclassified as RRG+. ROC curves were used for comparison of RRG and RRG+. RESULTS: The median follow-up was 105 months (range 63 to 148). There were 177 (25.4%) patients with recurrence: 111 (15.9%) distant, 34 (4.9%) local and 32 (4.6%) distant and local. In the multivariable analysis, Fuhrman grade (HR=2,75; P=.0001) and pTpN stage (HR = 2,19; P = .0001) behaved as independent predictive variables of recurrence. Patients were grouped as RRG (AUC = 0,76; p = 0,0001): - LRG (pT1pNx-0 G1-4; pT2pNx-0 G1-2): 456 (65,5%) PATIENTS: - IRG (pT2pNx-0 G3-4; pT3-4pNx-0 G1-2): 110 (15,8%) PATIENTS: - HRG (pT3-4pNx-0 G3-4; pT1-4pN+): 130 (18,6%) PATIENTS: After multivariate analysis with 2LPV, RRG were reclassified (RRG+) (AUC = .84, P = .0001): -LRG+(LRG without TN, SD and/or PSM(+)). -IRG+(IRG; LRG with TN) -HRG+(HRG; LRG with SD and/or PSM(+); IRG with TN and/or SD) CONCLUSIONS: The inclusion of 2LPV to the classification according to VP1N improves the discriminating capacity of RRG classification

Mortality prediction model for patients with bladder urothelial tumor after radical cystectomy. / Modelo predictivo de mortalidad en pacientes con tumor urotelial de vejiga tras cistectomía radical.

OBJECTIVE: Based on preoperative clinical and postoperative pathological variables, we aim to build a prediction model of cancer specific mortality (CSM) at 1, 3, and 5 years for patients with bladder transitional cell carcinoma treated with RC. MATERIAL AND METHODS: Retrospective analysis of 517 patients with diagnosis of cell carcinoma treated by RC (1986-2009). Demographic, clinical, surgical and pathological variables were collected, as well as complications and evolution after RC. Comparative analysis included Chi square test and ANOVA technique. Survival analysis was performed using Kaplan-Meier method and log-rank test. Univariate and multivariate analyses were performed using logistic regression to identify the independent predictors of CSM. The individual probability of CSM was calculated at 1, 3 and 5 years according to the general equation (logistic function). Calibration was obtained by the Hosmer-Lemeshow method and discrimination with the elaboration of a ROC curve (area under the curve). RESULTS: BC was the cause of death in 225 patients (45%). One, three and five-year CSM were 17%, 39.2% and 46.3%, respectively. The pT and pN stages were identified as independent prognostic variables of CSM at 1, 3 and 5 years. Three prediction models were built. The predictive capacity was 70.8% (CI 95% 65-77%, p=.000) for the 1st year, 73.9% (CI95% 69.2-78.6%, p=.000) for the third and 73.2% (CI% 68.5-77.9%, p=.000) for the 5th. CONCLUSIONS: The prediction model allows the estimation of CSM risk at 1, 3 and 5 years, with a reliability of 70.8, 73.9 and 73.2%, respectively.

Recurrence risk groups after nephrectomy for renal cell carcinoma. / Clasificación en grupos de riesgo de recurrencia tras nefrectomía por cáncer renal.

INTRODUCTION: There is no consensus on the follow-up protocol after nephrectomy for renal cell carcinoma (RCC), and the identification of recurrence risk groups (RRG) is required. OBJECTIVE: Establish recurrence risk groups (RRG). MATERIAL AND METHOD: A retrospective analysis of 696 patients with renal cancer submitted to surgery between 1990-2010; 568 (81.6%) patients treated with radical nephrectomy and 128 (18.4%) treated with partial nephrectomy. Pathological variables were classified as: 1st-level variables (1LPV): pTpN stage and Fuhrman grade (FG); and 2nd level pathological variables (2LPV): sarcomatoid differentiation (SD), tumor necrosis (TN), microvascular invasion (MVI) and positive surgical margins (PSM). Univariate and multivariate analysis have been performed using Cox regression to determine 1LPV related to recurrence. Based on 1LPV, we classified patients into three RRG: Low (LRG)<25%; Intermediate (IRG) 26-50% and High (HRG)>50%. We performed univariate and multivariate analysis with the 2LPVs for each RRG. With these data, patients were reclassified as RRG+. ROC curves were used for comparison of RRG and RRG+. RESULTS: The median follow-up was 105 months (range 63 to 148). There were 177 (25.4%) patients with recurrence: 111 (15.9%) distant, 34 (4.9%) local and 32 (4.6%) distant and local. In the multivariable analysis, Fuhrman grade (HR=2,75; P=.0001) and pTpN stage (HR=2,19; P=.0001) behaved as independent predictive variables of recurrence. Patients were grouped as RRG (AUC=0,76; p=0,0001): - LRG (pT1pNx-0 G1-4; pT2pNx-0 G1-2): 456 (65,5%) patients. - IRG (pT2pNx-0 G3-4; pT3-4pNx-0 G1-2): 110 (15,8%) patients. - HRG (pT3-4pNx-0 G3-4; pT1-4pN+): 130 (18,6%) patients. After multivariate analysis with 2LPV, RRG were reclassified (RRG+) (AUC=.84, P=.0001): -LRG+(LRG without TN, SD and/or PSM(+)). -IRG+(IRG; LRG with TN) -HRG+(HRG; LRG with SD and/or PSM(+); IRG with TN and/or SD) CONCLUSIONS: The inclusion of 2LPV to the classification according to VP1N improves the discriminating capacity of RRG classification.

Evaluation of laparoscopic approach in radical cystectomy from implementation to consolidation: Internal validation. / Evaluación del abordaje laparoscópico en la cistectomía radical desde la implantación hasta su consolidación: validación interna.

INTRODUCTION AND OBJECTIVES: The AEU Guidelines of 2017 consider laparoscopic and robot-assisted approaches as investigational procedures. The surgical learning curve is defined as the minimum number of cases that a surgeon has to perform in order to reproduce a technique considered as standard. The aim of this study is to analyze, within our department, the implementation of a laparoscopic radical cystectomy (LRC) program compared with a well consolidated and standardized open radical cystectomy (ORC) program. MATERIAL AND METHODS: Retrospective cohort analysis of two cystectomy groups: LRC (n=196) (20062016) vs. ORC (n=96) (2003-2005). Comparison of the evolution over time of the following parameters: operative time, blood transfusion rates, resection margins, postoperative complications, hospital stay and recurrence. Three time periods have been defined for LRC: implementation (2006-09) (LRC-I), development (2010-14) (LRC-D) and consolidation (2015-16) (LRC-C); comparing each of them with the control group (ORC). The chi-square test was used for the comparison of the qualitative variables and the Anova test for the numerical ones. RESULTS: When compared to ORC, LRC presented longer operative times in LRC-I and LRC-D periods. We observed a trend toward shorter operative time than ORC in the consolidation period (LRC-C). LRC also presented lower intraoperative transfusion rates in all periods and lower postoperative rates in CRL-D and CRL-C. Overall complications in LRC-D and LRC-C were lower in LRC, having fewer major complications (Clavien≥3) in the 3 periods. A decrease in mortality and hospital stay after the LRC-I phase was also observed. These results were consolidated during the two last periods of the study. We have not observed significant differences between ORC and LRC when comparing surgical margins and recurrence rates, neither in the total series, nor in the comparison between the different periods. These results endorse the oncologic safety of LRC from the beginning of the implementation process. CONCLUSIONS: When compared to ORC, LRC improves perioperative transfusion rates, complications and hospital stay from its implementation period, maintaining oncological safety. On the contrary, longer operative times during implementation and development were observed. However, in our series, we observed a trend toward shorter operative times than ORC approach in the consolidation period. We have validated the laparoscopic approach for radical cystectomy in our service.

Effect of adjuvant chemotherapy in locally advanced urothelial carcinoma of the bladder treated with cystectomy. / Efecto de la quimioterapia adyuvante en el carcinoma urotelial de vejiga localmente avanzado tratado con cistectomía.

INTRODUCTION: Currently, the role of adjuvant chemotherapy (ADJ) in muscle invasive bladder tumor remains controversial. OBJECTIVE: To evaluate the effect of ADJ on cancer specific survival of muscle invasive bladder tumor after radical cystectomy (RC). MATERIAL AND METHODS: Retrospective analysis of 292 patients diagnosed with urothelial bladder tumor pT3-4pN0 / + cM0 stage, treated with RC between 1986-2009. Total cohort was divided in two groups: 185 (63.4%) patients treated with ADJ and 107 (36.6%) without ADJ. Median follow-up was 40.5 months (IQR 55-80.5). Comparative analysis was performed with Chi-square test and Student's t test /ANOVA. Survival analysis was carried out with the Kaplan-Meier method and log-rank test. Multivariate analysis (Cox regression) was made to identify independent predictors of cancer-specific mortality (CSM). RESULTS: 42.8% of the series presented lymph node involvement after RC. At the end of follow-up, 22.9% were BC-free and 54.8% had died due to this cause. The median cancer specific survival was 30 months. No significant differences were observed in cancer specific survival regarding the treatment with ADJ in pT3pN0 (p=.25) or pT4pN0 (p=.29) patients, but it was significant in pT3-4pN+ (p=.001). Multivariate analysis showed pathological stage (p=.0001) and treatment with ADJ (p=.007) as independent prognostic factors for CSM. ADJ reduced the risk of CSM (HR:0.59,95% CI 0.40-0.87, p=.007). CONCLUSIONS: pT and pN stages were identified as independent predictors of CSM after RC. The administration of ADJ in our series behaved as a protective factor reducing the risk of CSM, although only pN+ patients were benefited in the stage analysis.

Complicaciones posquirúrgicas en los pacientes con cáncer de vejiga tratados con cistectomía: Diferencias entre el abordaje abierto y laparoscópico / Post-surgical complications in patients with bladder cancer treated with cystectomy: Differences between open and laparoscopic approach

Introducción: La cirugía mínimamente invasiva en la cistectomía no ha tenido el mismo desarrollo que en otras cirugías urológicas, entre otros motivos por la falta de estudios publicados que definan las ventajas de este abordaje frente a la cirugía abierta. Objetivos: El principal objetivo de este estudio es establecer el papel de la cirugía mínimamente invasiva, laparoscopia, en la cistectomía radical frente a la cirugía abierta en un análisis de complicaciones perioperatorias. Material y método: Análisis de cohortes retrospectivo de complicaciones perioperatorias de 2series homogéneas de cistectomías: laparoscópica (n = 196) frente a abierta (n = 197). Identificación mediante análisis multivariante de factores independientes predictores de complicaciones perioperatorias. Resultados: En el análisis comparativo entre el abordaje laparoscópico y el abierto observamos una menor tasas de trasfusión perioperatoria (p < 0,0001), una menor tasa de complicaciones postoperatorias globales (p < 0,0001) así como en el subgrupo de complicaciones graves (Clavien > 3; p < 0,001). También una menor tasa de mortalidad en la serie de laparoscópica frente a la abierta (p<0,0001). Identificamos como factor independiente predictor de complicaciones al abordaje quirúrgico y la duración de la cirugía (p < 0,001). Conclusiones: En nuestro estudio identificamos el abordaje laparoscópico como protector de complicaciones en la cistectomía radical. El abordaje abierto casi triplica el riesgo de tener complicaciones

Introduction: Minimally invasive surgery regarding cystectomy has not had the same development as other urological surgeries. This could be due to the lack of published studies defining the advantages of this approach versus open surgery. Objectives: The main objective of this study is to establish the role of minimally invasive surgery, laparoscopic radical cystectomy, versus open surgery by analyzing their perioperative complications. Material and method: Retrospective cohort analysis of perioperative complications of 2 homogeneous series of cystectomies: laparoscopic (n=196) versus open (n = 197). Identification of independent predictors of perioperative complications by multivariate analysis. Results: In the comparative analysis between laparoscopic cystectomies and open cystectomies we observed a lower rate of perioperative blood transfusion (p < 0.0001), a lower rate of global postoperative complications (p < 0.0001) and a lower rate of serious complications (Clavien > 3; p < 0.001) in the LRC group. There was also a lower mortality rate in the laparoscopic series compared to open ones (p < 0.0001). Surgical approach and surgical time (p < 0.001) were identified as independent predictors of complications. Conclusions: We have identified the laparoscopic approach as a complication shield for radical cystectomy. The open approach almost triples the risk of complications

Influencia del acceso laparoscópico en la mortalidad cáncer-específica de los pacientes con cáncer de vejiga en un estadio pTa-2pN0R0 tratados con cistectomía radical / Influence of laparoscopic access in cancer-specific mortality of patients with pTa-2pN0R0 bladder cancer treated with radical cistectomy

Introducción y objetivo: La cirugía mínimamente invasiva representa un abordaje quirúrgico atractivo en la cistectomía radical. Sin embargo, a la espera de estudios definitivos todavía es controvertido el efecto que pudiera tener en los resultados oncológicos. El objetivo de este estudio es evaluar el efecto del abordaje laparoscópico sobre la mortalidad cáncer-específica. Material y método: Estudio de cohortes retrospectivo de dos grupos de pacientes en estadio pT0-2pN0R0 sometidos a cistectomía radical abierta (CRA) (n = 191) y laparoscópica (CRL) (n = 74). Se realizó un análisis mediante regresión de Cox para identificar primero las variables predictoras y posteriormente las variables predictoras independientes relacionadas con la supervivencia. Resultados: El 90,9% fueron varones; la mediana de edad fue de 65 años y la mediana de seguimiento, de 65,5 (IQR 27,75-122) meses. Los pacientes con acceso laparoscópico presentaron de forma significativa un mayor índice ASA (p = 0,0001), un mayor tiempo entre la resección transuretral (RTU) y la cistectomía (p = 0,04), una menor tasa de transfusión intraoperatoria (p = 0,0001), un menor estadio pT (p = 0,002) y una menor incidencia de infección asociada a herida quirúrgica (p = 0,04). Al analizar los distintos factores de riesgo asociados a mortalidad cáncer-específica, solo encontramos el abordaje mediante CRA frente a CRL como factor predictor independiente de mortalidad cáncer-específica (p = 0,007). El acceso abierto a la cistectomía multiplicó el riesgo de mortalidad por 3,27. Conclusiones: En nuestra serie, cuando limitamos los distintos factores identificados asociados a mortalidad cáncer-específica analizando pacientes pT0-2N0R0, el abordaje laparoscópico no representa un factor de riesgo frente al abordaje abierto

Introduction and objective: Minimally invasive surgery represents an attractive surgical approach in radical cystectomy. However, its effect on the oncological results is still controversial due to the lack of definite analyses. The objective of this study is to evaluate the effect of the laparoscopic approach on cancer-specific mortality. Material and method: A retrospective cohort study of two groups of patients in a pT0-2pN0R0 stage, undergoing open radical cystectomy (ORC) (n = 191) and laparoscopic radical cystectomy (LRC) (n = 74). Using Cox regression, an analysis has been carried out to identify the predictor variables in the first place, and consequently, the independent predictor variables related to survival. Results: 90.9% were males with a median age of 65 years and a median follow-up period of 65.5 (IQR27.75-122) months. Patients with laparoscopic access presented a significantly higher ASA index (P = .0001), a longer time between TUR and cystectomy (P = .04), a lower rate of intraoperative transfusion (P = .0001), a lower pT stage (P = .002) and a lower incidence of infection associated with surgical wounds (P = .04). When analyzing the different risk factors associated with cancer-specific mortality, we only found the ORC approach (versus LRC) as an independent predictor of cancer-specific mortality (P = .007). Open approach to cystectomy multiplied the risk of mortality by 3.27. Conclusions: In our series, the laparoscopic approach does not represent a risk factor compared to the open approach in pT0-2N0R0 patients

Post-surgical complications in patients with bladder cancer treated with cystectomy: Differences between open and laparoscopic approach. / Complicaciones posquirúrgicas en los pacientes con cáncer de vejiga tratados con cistectomía: Diferencias entre el abordaje abierto y laparoscópico.

INTRODUCTION: Minimally invasive surgery regarding cystectomy has not had the same development as other urological surgeries. This could be due to the lack of published studies defining the advantages of this approach versus open surgery. OBJECTIVES: The main objective of this study is to establish the role of minimally invasive surgery, laparoscopic radical cystectomy, versus open surgery by analyzing their perioperative complications. MATERIAL AND METHOD: Retrospective cohort analysis of perioperative complications of 2homogeneous series of cystectomies: laparoscopic (n = 196) versus open (n = 197). Identification of independent predictors of perioperative complications by multivariate analysis. RESULTS: In the comparative analysis between laparoscopic cystectomies and open cystectomies we observed a lower rate of perioperative blood transfusion (P < 0.0001), a lower rate of global postoperative complications (P < 0.0001) and a lower rate of serious complications (Clavien > 3; P < 0.001) in the LRC group. There was also a lower mortality rate in the laparoscopic series compared to open ones (P < 0.0001). Surgical approach and surgical time (P < 0.001) were identified as independent predictors of complications. CONCLUSIONS: We have identified the laparoscopic approach as a complication shield for radical cystectomy. The open approach almost triples the risk of complications.

Influence of laparoscopic access in cancer-specific mortality of patients with pTa-2pN0R0 bladder cancer treated with radical cistectomy. / Influencia del acceso laparoscópico en la mortalidad cáncer-específica de los pacientes con cáncer de vejiga en un estadio pTa-2pN0R0 tratados con cistectomía radical.

INTRODUCTION AND OBJECTIVE: Minimally invasive surgery represents an attractive surgical approach in radical cystectomy. However, its effect on the oncological results is still controversial due to the lack of definite analyses. The objective of this study is to evaluate the effect of the laparoscopic approach on cancer-specific mortality. MATERIAL AND METHOD: A retrospective cohort study of two groups of patients in a pT0-2pN0R0 stage, undergoing open radical cystectomy (ORC) (n=191) and laparoscopic radical cystectomy (LRC) (n=74). Using Cox regression, an analysis has been carried out to identify the predictor variables in the first place, and consequently, the independent predictor variables related to survival. RESULTS: 90.9% were males with a median age of 65years and a median follow-up period of 65.5 (IQR27.75-122) months. Patients with laparoscopic access presented a significantly higher ASA index (P=.0001), a longer time between TUR and cystectomy (P=.04), a lower rate of intraoperative transfusion (P=.0001), a lower pT stage (P=.002) and a lower incidence of infection associated with surgical wounds (P=.04). When analyzing the different risk factors associated with cancer-specific mortality, we only found the ORC approach (versus LRC) as an independent predictor of cancer-specific mortality (P=.007). Open approach to cystectomy multiplied the risk of mortality by 3.27. CONCLUSIONS: In our series, the laparoscopic approach does not represent a risk factor compared to the open approach in pT0-2N0R0 patients.

Influencia del acceso laparoscópico en la mortalidad cáncer específica de los pacientes con cáncer de vejiga en un estadio pT3-4 tratados con cistectomía / Influence of the laparoscopic approach on cancer-specific mortality of patients with stage pt3-4 bladder cancer treated with cystectomy

Introducción y objetivo: El principal objetivo del estudio fue establecer la seguridad oncológica del abordaje laparoscópico en la cistectomía radical de tumores uroteliales de alto riesgo no órgano-confinados. Material y métodos: Estudio de cohortes retrospectivo de 216 cistectomías estadio patológico pT3-4 intervenidos entre 2003 y 2016; con acceso abierto (CRA, n = 108) y laparoscópico (CRL, n = 108). Resultados: Ambos grupos tuvieron similares características patológicas, excepto en grado G3 de la RTU, mayor número de linfadenectomías y con mayor pN+, y mayor número de quimioterapia adyuvante en el grupo de CRL. La mediana de seguimiento de la serie fue de 15 (IQR: 8-10,5) meses. Recidivó el 68,1% de la serie, sin diferencias entre ambos grupos (p = 0,11). La estimación de las diferencias para la supervivencia cáncer específica fue mayor en el grupo de CRL (p = 0,03), al igual que la supervivencia global (p = 0,009). No existieron diferencias entre ambos grupos en estimación de supervivencia libre de recidiva (p = 0,26). El tipo de acceso quirúrgico (p = 0,03), el estadio pTpN (p = 0,0001) y la administración de quimioterapia adyuvante (p = 0,003) se relacionaron con la mortalidad cáncer específica (MCE) en el análisis univariante. Solo el estadio pTpN (p = 0,0001) y la no administración de quimioterapia adyuvante (p = 0,003) se comportaron como factores predictores independientes de MCE. Conclusión: El tipo de acceso quirúrgico a la cistectomía (CRA vs. CRL) no influyó en la MCE. La afectación ganglionar y la ausencia de quimioterapia adyuvante se identificaron como factores predictores de MCE. Nuestro estudio avala la seguridad oncológica del abordaje laparoscópico de la cistectomía en los pacientes con tumores vesicales musculoinvasivos localmente avanzados

Introduction and aim: The main aim of the study was to establish the oncological safety of the laparoscopic approach to radical cystectomy for high-risk, non-organ-confined urothelial tumours. Material and methods: A retrospective cohort study of 216 stage pT3-4 cystectomies operated between 2003 and 2016; using an open approach (ORC, n = 108), and using a laparoscopic approach (LRC, n = 108). Results: Both groups have similar pathological features except, in G3 TUR, there were more lyphadenectomies and greater pN+, and more adjuvant chemotherapies using the LRC. The median follow-up of the series was 15 (IQR: 8-10.5) months. Sixty-eight point one percent of the series relapsed, with no differences between either group (p = .11). The estimated differences for cancer-specific survival was greater in the LRC group (p = .03), as was overall survival (p = .009). There were no differences between either group in estimated recurrence-free survival (p = .26). The type of surgical approach (p = .03), pTpN stage (p = .0001), and administration of adjuvant chemotherapy (p = .003) were related to cancer-specific mortality (CSM) in the univariate analysis. Only the pTpN stage (p = .0001), and not giving adjuvant chemotherapy (p =. 003) behaved as independent predictive factors of CSM. Conclusion: The type of surgical approach to cystectomy (ORC vs. LRC) did not influence CSM. Lymph node involvement and not giving adjuvant chemotherapy were identified as predictive factors of CSM. Our study supports the oncological safety of the laparascopic approach for cystectomy in patients with locally advanced muscle-invasive bladder tumours