Alfonso de la Peña Pineda y el Intercambio urológico por correspondencia / Alfonso de la Peña Pineda and the Urology exchange by correspondence

Introducción: Los hermanos Alfonso y Emilio de la Peña Pineda propusieron en 1943 crear un sistema de comunicación por correspondencia como en Norteamérica, idea bien aceptada por los urólogos españoles, y que llevó por título Intercambio urológico por correspondencia. Material y métodos: Lectura minuciosa y análisis pormenorizado del contenido de 1944 a 1953, con un promedio de 3 páginas tamaño folio de cada ejemplar. Resultado: Se enviaron 105 números que contienen 234 comunicaciones urológicas, firmadas por 67 urólogos españoles, 2 portugueses y un cirujano general, 39 son traducciones de la publicación similar norteamericana. La temática corresponde a casos personales curiosos o raros, sobre situaciones o problemas de la enfermedad urológica más habitual en la época, de los que únicamente destacan una veintena de artículos. En general el contenido es de poca utilidad e interés, motivo por el que decreció paulatinamente la colasiiboración hasta desaparecer. Conclusión: La propuesta fue respondida mayoritariamente por quienes mantenían relación con la cátedra de Urología de la Facultad de Medicina de Madrid, dirigida por Alfonso de la Peña. La temática cifrada en casos clínicos personales, faltos de interés en su mayoría, llevó a disminuir paulatinamente la aportación de comunicaciones hasta su cese. Sobresalen únicamente unos pocos artículos. El mayor valor del trabajo lo constituye recoger y analizar el contenido de la que sea muy probablemente la única colección completa existente, ya que al no ser editada por imprenta y ser su distribución solo como correspondencia no se ha encontrado en las bibliotecas públicas

Introduction: In 1943, the brothers Alfonso and Emilio de la Peña Pineda proposed creating a communication system by correspondence as in North America, an idea welcomed by Spanish urologists, a system that was named the Urology Exchange by Correspondence. Material and methods: A thorough reading and detailed analysis was conducted of content from 1944 to 1953, with an average of 3 pages of folio size of each copy. Result: A total of 105 issues containing 234 urological presentations were sent, signed by 67 Spanish urologists, 2 Portuguese urologists and 1 general surgeon. Thirty-nine of these presentations were translations of a similar U.S. publication. The subject matter corresponded to curious or rare personal cases, concerning conditions or problems of the most common urological diseases in that era, of which only 20 of those articles stand out. In general, the content is of little use and interest, which prompted the gradual decline in the collaboration until it disappeared. Conclusion: The proposal was answered mostly by those who had a professional relationship with the chair of Urology of the Faculty of Medicine of Madrid directed by Alfonso de la Peña. The subject matter of the personal case studies, most of which lacked importance, lead to the gradual decline in the contribution of presentations until its eventual end. Only a few articles stand out. The study's major value consists of collecting and analysing the content of what is highly likely the only complete collection in existence, given that it was not edited for printing and was distributed only as correspondence and cannot therefore be found in public libraries

Alfonso de la Peña Pineda and the Urology exchange by correspondence. / Alfonso de la Peña Pineda y el Intercambio urológico por correspondencia.

INTRODUCTION: In 1943, the brothers Alfonso and Emilio de la Peña Pineda proposed creating a communication system by correspondence as in North America, an idea welcomed by Spanish urologists, a system that was named the Urology Exchange by Correspondence. MATERIAL AND METHODS: A thorough reading and detailed analysis was conducted of content from 1944 to 1953, with an average of 3 pages of folio size of each copy. RESULT: A total of 105 issues containing 234 urological presentations were sent, signed by 67 Spanish urologists, 2 Portuguese urologists and 1 general surgeon. Thirty-nine of these presentations were translations of a similar U.S. publication. The subject matter corresponded to curious or rare personal cases, concerning conditions or problems of the most common urological diseases in that era, of which only 20 of those articles stand out. In general, the content is of little use and interest, which prompted the gradual decline in the collaboration until it disappeared. CONCLUSION: The proposal was answered mostly by those who had a professional relationship with the chair of Urology of the Faculty of Medicine of Madrid directed by Alfonso de la Peña. The subject matter of the personal case studies, most of which lacked importance, lead to the gradual decline in the contribution of presentations until its eventual end. Only a few articles stand out. The study's major value consists of collecting and analysing the content of what is highly likely the only complete collection in existence, given that it was not edited for printing and was distributed only as correspondence and cannot therefore be found in public libraries.

Tres tesis sobre estenosis de uretra / Three Theses on Urethral Disease

Objetivo: Dar a conocer la existencia de tres tesis doctorales sobre estenosis de uretra, presentadas en la Universidades de París y Montpellier por autores españoles. Material y métodos: De los estudiantes canarios que durante el siglo XIX y comienzos del XX estudiaron medicina en Francia destacamos tres que tienen en común el haber elegido el mismo tema para la presentación de su tesis doctoral. Resultados: Analizamos brevemente sus biografías, haciendo especial referencia al contenido de sus tesis doctorales. Conclusiones: La estenosis de uretra fue una patología muy citada durante el periodo estudiado por su alta incidencia. Distinguimos los cambios terapéuticos que se aportaron en las tres tesis estudiadas (AU)

Objective: To inform about three doctorate theses on urethral stenosis, presented in the University of Paris and Montpellier by Spanish authors. Material and methods: Of the Canary Island students who studied medicine in France during the XIX century and beginning of the XX century, three stand out for having chosen the same subject for presentation of their doctorate thesis. Results: We briefly analyze their biographies, placing special emphasis on the content of their doctorate thesis. Conclusions: Urethral stenosis was a very mentioned disease during the period studied due to its high incidence. We distinguish the therapeutic changes contributed in the three theses studied (AU)

[Three theses on urethral disease]. / Tres tesis sobre estenosis de uretra.

OBJECTIVE: To inform about three doctorate theses on urethral stenosis, presented in the University of Paris and Montpellier by Spanish authors. MATERIAL AND METHODS: Of the Canary Island students who studied medicine in France during the xix century and beginning of the xx century, three stand out for having chosen the same subject for presentation of their doctorate thesis. RESULTS: We briefly analyze their biographies, placing special emphasis on the content of their doctorate thesis. CONCLUSIONS: Urethral stenosis was a very mentioned disease during the period studied due to its high incidence. We distinguish the therapeutic changes contributed in the three theses studied.

[An analysis of our experience in cryopreservation of semen from cancer patients]. / Análisis de nuestra experiencia en la criopreservación del semen en pacientes oncológicos.

OBJECTIVE: To analyze the characteristics of patients with oncological problems who were users of the sperm bank, as well as use of cryopreserved semen. MATERIALS AND METHODS: A retrospective analysis was made of all cryopreserved semen samples from males diagnosed with cancer from April 1992 to October 2007 at the province of Las Palmas. RESULTS: One hundred and one male patients with cancer were referred to the sperm bank before cancer therapy. Eighty percent of them were contacted by telephone. Mean freezing age was 25 years. Forty-one percent of patients had testicular tumors. Thirty-three percent had no prior biological children. Only one patient had known fertility problems before treatment. Sixty-seven percent of patients were warned by the healthcare team about the possibility of infertility at the time of cancer diagnosis. Only 1% of samples were not adequate for cryopreservation. The frozen sample was used by 4% of the patients. When patients were asked about future use of semen, 63% of them wanted to continue with semen cryopreservation, as compared to 17% who had no interest in having offspring in the future. CONCLUSION: The number of fertile patients who cryopreserve semen is extremely low. It is very important that the healthcare team warns patients of potential infertility after treatment. A high proportion of patients have valid samples for cryopreservation, but semen is used by a low number of patients. A high proportion of patients want to maintain their semen frozen.

Análisis de nuestra experiencia en la criopreservación del semen en pacientes oncológicos / An analysis of our experience in cryopreservation of semen from cancer patients

Objetivo: analizar las características de los pacientes con problemas oncológicos, usuarios del banco de semen, así como el uso del semen criopreservado. Material y métodos: de forma restrospectiva se han analizado todas las muestras de semen criopreservadas de varones con el diagnóstico de cáncer, entre abril de 1992 y octubre del 2007, en la provincia de Las Palmas. Resultados: fueron remitidos al banco de semen 101 varones con tumores, previo tratamiento oncológico. Se contactó por vía telefónica con el 80%. La edad media de congelación fue de 25 años. El 41% de los pacientes padecían de tumores testiculares; no tenían hijos biológicos previos el 33%. Sólo un paciente tenía problemas de infertilidad previo al tratamiento. En el momento del diagnóstico del cáncer el equipo sanitario advirtió al 67% de los pacientes de la posibilidad de infertilidad. Sólo el 1% de las muestras no fue apta para la criopreservación. Se usó la muestra congelada en el 4% de las muestras, y cuando se les preguntaba sobre el uso futuro del semen el 63% de los pacientes deseaba continuar con el criopreservado, frente al 17%, que no mostraba interés por tener descendencia en el futuro. Conclusión: el número de enfermos en edad fértil que criopreservan el semen es extremadamente bajo. Advertir a los pacientes de la posibilidad de infertilidad tras el tratamiento, por parte del equipo sanitario, es de una vital importancia. Hay un alto porcentaje de pacientes con muestras válidas para criopreservación, un escaso número de pacientes hacen uso del semen, aunque existe un alto porcentaje de pacientes con deseo de continuar con su semen congelado(AU)

Objective: To analyze the characteristics of patients with oncological problems who were users of the sperm bank, as well as use of cryopreserved semen. Materials and methods: A retrospective analysis was made of all cryopreserved semen samples from males diagnosed with cancer from April 1992 to October 2007 at the province of Las Palmas. Results: One hundred and one male patients with cancer were referred to the sperm bank before cancer therapy. Eighty percent of them were contacted by telephone. Mean freezing age was 25 years. Forty-one percent of patients had testicular tumors. Thirty-three percent had no prior biological children. Only one patient had known fertility problems before treatment. Sixty-seven percent of patients were warned by the healthcare team about the possibility of infertility at the time of cancer diagnosis. Only 1% of samples were not adequate for cryopreservation. The frozen sample was used by 4% of the patients. When patients were asked about future use of semen, 63% of them wanted to continue with semen cryopreservation, as compared to 17% who had no interest in having offspring in the future. Conclusion: The number of fertile patients who cryopreserve semen is extremely low. It is very important that the healthcare team warns patients of potential infertility after treatment. A high proportion of patients have valid samples for cryopreservation, but semen is used by a low number of patients. A high proportion of patients want to maintain their semen frozen(AU)

[Renal artery aneurysm. Laparoscopic nephrectomy, ex-vivo reconstruction and autotrasplantation]. / Aneurisma de arteria renal. Nefrectomía laparoscópica, reconstrucción en banco y autotrasplante.

We report a case of severe hypertensive patient with poor response regardless 5 drugs, that is diagnosed with right renal artery aneurysm, during the study of his HTN. Conservative surgery was performed by extracting laparoscopic kidney graft,ex-vivo pedicle reconstruction, followed by transplant in right iliac fossa utilizing the ilioinguinal incision used for the extraction, without need for two incisions. We perform a brief discussion of surgery indications of surgery in these patients.

Aneurisma de arteria renal. Nefrectomía laparoscópica, reconstrucción en banco y autotrasplante / Renal artery aneurysm. Laparoscopic nephrectomy, ex-vivo reconstruction and autotransplantation

Se presenta un caso de paciente hipertenso severo con mala respuesta a pesar de 5 fármacos, el cual es diagnosticado de aneurisma en arteria renal derecha, durante el estudio de su HTA. Se realiza cirugía conservadora renal haciendo extracción laparoscópica del injerto, reconstrucción en banco del pedículo, y posterior trasplante en fosa ilíaca derecha aprovechado la incisión ilioinguinal empleada para la extracción, sin necesidad de dos incisiones. Se realiza breve discusión de indicaciones de la cirugía en estos pacientes (AU)

We report a case of severe hypertensive patient with poor response regardless 5 drugs, that is diagnosed with right renal artery aneurysm, during the study of his HTN. Conservative surgery was performed by extracting laparoscopic kidney graft, ex-vivo pedicle reconstruction, followed by transplant in right iliac fossa utilizing the ilioinguinal incision used for the extraction, without need for two incisions. We perform a brief discussion of surgery indications of surgery in these patients (AU)

[Clinical-pathology relationship in bladder cancer]. / Relación clinico-patólogica en cáncer vesical.

OBJECTIVES: Analyze the role of the Computerized Axial Tomography (TAC) like image study of pre-surgery stadification, in the subjected patients to radical cystectomy, for the treatment of muscle infiltrate bladder cancer. METHODS: Retrospective study of cohorts on 63 subjected patients to radical cystectomy for bladder cancer, in oneself service, between january of 1995 and december of 2.005. The capacity of the TAC was determined for the stadification bladder (pT), node (pN) and the results were compared, with the obtained ones in the pathological anatomy after the radical cystectomy, acording to TNM clasification. The possible impact of this image technique was evaluated in the change of surgical attitude in these patients. RESULTS: The estimate of bladder affectation with TAC was correct in 28.6%, sub-estadificate in 50.8%, and up-estadificate in 20.6%. The TAC for the bladder possesses a lower sensibility the more outpost it is this affectation. It specificity is higher the more advanced locally is the cancer, oscillating among 44% in the pT2 and 94% in the pT4. Regarding the estadification node, it is correct in 73.5% of all cases, although this percentage depends almost exclusively on the patients with negative node (N -). These data offer us a sensibility of 28%, specificity of 55%, positive predictive value of 68% and negative predictive of 67%. SUMMARY: The impact of the TAC in the clinical estadification of the infiltrate bladder cancer is relatively low. The biggest benefit is obtained in patient with suspicion of advanced illness. Its limitation to this group would suppose a significant reduction of costs, with low risk of an inappropriate surgical handling.

[Early biochemical failure after radical prostatectomy for prostate cancer. Impact factors?]. / Recidiva bioquímica precoz tras prostatectomía radical retropúbica por cáncer de próstata. Factores implicados. Influye el tiempo de espera entre biopsia y cirugía?

UNLABELLED: Does delay from biopsy to surgery have any influence? OBJECTIVES: To determine wether WT may impact on the EBF (before one year) alter RRP in our series, and to study other factors that may impact on this issue. MATERIAL AND METHODS: We study 310 RRP. Inclusion criteria are: one year follow up, no hormonal manipulation neither previous radiotherapy. Patients are divide in two groups attending WT. Group A < 90 days (n: 148), Group B > 90 days (n: 162). We study EBF (2 or more PSA determinations >= 0.2 ng/ml), and the impact of previous PSA, biopsy Gleason, Gleason of the specimen (G), pT stage (pT), and WT. T of Student or W of Wilcoxon are used to determine the homogeneity of the two groups. Chi Square of Pearson to compare the two group's EBF and pT attending to WT and EBF attending to pT. U of Mann Whitney is used to study EBF attending to G. Multivariate logistic regresion (LR) is used to study the impact of the variables on EBF. RESULTS: There are no differences between the two groups in age (p<0.129), PSA (p<0.479), biopsy's Gleason (p<0.913). There are no differences in EBF nor in pT attending to WT. Significant statystical differences are founded in EBF attending to pT and G. T3 tumors have more chance of recurrence than T2. EBF is more frecuent as G increases. In logistic regresion of the global serie, independent variables for progression are: Previous PSA and pT. Nor biopsy's Gleason nor specimen's Gleason, nor WT, impact on the EBF. CONCLUSIONS: Biopsy Gleason and WT do not impact on EBF. WT do not impact on pT. In our serie differences on EBF are lead by previous PSA and pT. Also Gleason of the especimen seems to impact on EBF, but in lower proportion, with no significance in multivariate analysis.

Relación clinico-patólogica en cáncer vesical / Clinical-pathology relationship in bladder cancer

Objetivos: Analizar el papel de la Tomografía Axial Computerizada (TAC) como estudio de estadificación prequirúrgica, en los pacientes sometidos a cistectomía radical, para el tratamiento del carcinoma vesical infiltrante. Métodos: Estudio de cohortes retrospectivo sobre 63 pacientes sometidos a cistectomía radical por carcinoma urotelial de vejiga, en un mismo servicio, entre enero del 1995 y diciembre del 2005. Se determinó la capacidad de la TAC para el estadiaje vesical, ganglionar y se compararon los resultados, con los obtenidos en la anatomía patológica tras la cistectomia radical, según la clasificación TNM, actual. Se evaluó el posible impacto de esta técnica de imagen en el cambio de actitud quirúrgica en estos pacientes. Resultados: La estimación de afectación perivesical con TAC fue correcta en 28,6%, subestadiada en 50,8%, y sobreestadiada en 20,6%. La TAC para el estadiaje perivesical posee una sensibilidad más baja cuanto más avanzada es dicha afectación. Su especificidad es más elevada cuanto más avanzado localmente sea el tumor, oscilando entre 44% en los pT2 y el 94% en los pT4. En lo referente al estadiaje ganglionar, es correcto en 73,5 % de los casos, aunque este porcentaje depende casi exclusivamente de los pacientes con ganglios negativos (N-). Estos datos nos ofrecen una sensibilidad del 28%, especificidad de 55%, valor predictivo positivo de 68% y predictivo negativo de 67%. Conclusiones: El impacto de la TAC en el estadiaje clínico del cáncer vesical infiltrante es relativamente bajo. El mayor beneficio se obtiene en pacientes con sospecha de enfermedad avanzada. Su limitación a este grupo supondría una significativa reducción de costes, con bajo riesgo de un manejo quirúrgico inapropiado (AU)

Objectives: Analyze the role of the Computerized Axial Tomography (TAC) like image study of pre-surgery stadification, in the subjected patients to radical cystectomy, for the treatment of muscle infiltrate bladder cancer. Methods: Retrospective study of cohorts on 63 subjected patients to radical cystectomy for bladder cancer, in oneself service, between january of 1995 and december of 2.005. The capacity of the TAC was determined for the stadification bladder (pT), node (pN) and the results were compared, with the obtained ones in the pathological anatomy after the radical cystectomy, acording to TNM clasification. The possible impact of this image technique was evaluated in the change of surgical attitude in these patients. Results: The estimate of bladder affectation with TAC was correct in 28,6%, sub-estadificate in 50,8%, and up estadificate in 20,6%. The TAC for the bladder possesses a lower sensibility the more outpost it is this affectation. It specificity is higher the more advanced locally is the cancer, oscillating among 44% in the pT2 and 94% in thepT4. Regarding the estadification node, it is correct in 73,5% of all cases, although this percentage depends almost exclusively on the patients with negative node (N -). These data offer us a sensibility of 28%, specificity of 55%, positive predictive value of 68% and negative predictive of 67%. Summary: The impact of the TAC in the clinical estadification of the infiltrate bladder cancer is relatively low. The biggest benefit is obtained in patient with suspicion of advanced illness. Its limitation to this group would suppose a significant reduction of costs, with low risk of an inappropriate surgical handling (AU)

Recidiva bioquímica precoz tras prostatectomía radical retropúbica por cáncer de próstata. Factores implicados. ¿Influye el tiempo de espera entre biopsia y cirugía? / Early biochemical failure radical prostatectomy for prostate cancer. Impact factors?

Objetivos: Estudiar diferentes factores que pueden influir en la recidiva bioquímica precoz (RBP) (primer año tras cirugía), tras prostatectomía radical retropúbica (PRR). Material y métodos: Estudiamos 310 PRR. Criterios de inclusión: al menos un año de seguimiento, ausencia de bloqueo hormonal o radioterapia previa. Los pacientes fueron divididos inicialmente en 2 grupos según el tiempo de espera. Grupo A <90días (n: 148), Grupo B > 90 días (n: 162). Estudiamos RBP (2 o más determinaciones de PSA >= 0,2 ng/ml) y la influencia del PSA previo, el Gleason de la biopsia, el Gleason del espécimen, estadio pT, y tiempo de espera. Para estudiar la homogeneidad existente entre los dos grupos usamos la t de Student o W de Wilcoxon. Estudiamos la RBP y el estadio pT en los dos grupos usando la chi cuadrado de Pearson, que también nos sirve para estudiar en los dos grupos la RBP en relación al estadio pT. El test de la U de mann-Whitney lo usamos para estudiar en la serie global la RBP según el Gleason del espécimen. Por último se realiza una Regresión logística multivariante para estudiar la influencia de todas las variables en la RBP en la serie global. Resultados: No encontramos diferencias entre los dos grupos en edad (p< 0,129), ni PSA (p< 0,479), ni Gleason de biopsia(p<0,913). No se encontraron diferencias en RBP ni en estadio pT según el tiempo de espera. Hallamos diferencias estadísticamente significativas en RBP si estudiamos estadio pT y Gleason de la pieza. Los T3 tienen más incidencia de recurrencia que losT2 y hay más incidencia de RBP según aumenta el Gleason de la pieza. En la regresión logística de la serie global las variables independientes de progresión son: PSA previo y estadio pT. Ni el Gleason de la biopsia ni el Gleason del espécimen, ni el tiempo de espera entre biopsia y cirugía influyen en la RBP. Conclusiones: El Gleason de la biopsia y el tiempo de espera no influyen en la RBP. El tiempo de espera tampoco influye en el estadio T final. En nuestra serie las diferencias en RBP vienen dadas por el PSA previo y pT. El Gleason del espécimen parece influir en la RBP, pero en menor proporción sin significado en el análisis multivariante (au)

Objectives: To determine wether WT may impact on the EBF (before one year) alter RRP in our series, and to study other factors that may impact on this issue. Material and methods: We study 310 RRP. Inclusion criteria are: one year follow up, no hormonal manipulation neither previous radiotherapy. Patients are divide in two groups attending WT. Group A < 90 days (n: 148), Group B > 90 days (n: 162). We study EBF (2 or more PSA determinations >= 0.2 ng/ml), and the impact of previous PSA, biopsy Gleason, Gleason of the specimen (G), pT stage (pT), and WT. T of Student or W of Wilcoxon are used to determine the homogeneity of the two groups. Chi Square of Pearson to compare the two group’s EBF and pT attending to WT and EBF attending to pT. U of Mann Whitney is used to study EBF attending to G. Multivariate logistic regresion (LR) is used to study the impact of the variables on EBF. Results: There are no differences between the two groups in age (p< 0.129), PSA (p< 0.479), biopsy´s Gleason (p<0.913). There are no differences in EBF nor in pT attending to WT. Significant statystical differences are founded in EBF attending to pT and G. T3 tumors have more chance of recurrence than T2. EBF is more frecuent as G increases. In logistic regresion of the global serie, independent variables for progression are: Previous PSA and pT. Nor biopsy´s Gleasonnor specimen´s Gleason, nor WT, impact on the EBF. Conclusions: Biopsy Gleason and WT do not impact on EBF. WT do not impact on pT. In our serie differences on EBF are lead by previous PSA and pT. Also Gleason of the especimen seems to impact on EBF, but in lower proportion, with no significance in multivariate analysis (AU)

Uropatía obstructiva bilateral secundaria a hernia vesical masiva / Bilateral ureterohydronephrosis secondary massive vesical hernia

La hernia vesical no es una patología infrecuente, aparece entre el 0,3 y 3% según los autores. La aparición de hernia vesical masiva constituye una rareza. Presentamos un nuevo caso de fracaso renal secundario a hernia vesical inguinoescrotal con uropatía obstructiva bilateral, analizando la presentación clínica, el esquema diagnostico y el tratamiento de estas hernias (AU)

Bladder hernia is not a rare pathological condition, with a frequency between 0,3 and 3%. Massive bladder hernia is less frequent an very rarely ureterohydronephrosis with this pathology. We will present a case a renal failure secondary to inguinoscrotal bladder hernia with bilateral obstructive uropathy and an analyzed the clinical presentation, the diagnosis and the treatment for those hernias (AU)

[Bladder neoplasm after nephroureterectomy for upper urinary tract tumor. Does distal ureter surgery influx on the evolution?]. / Neoplasia vesical tras nefroureterectomía por tumores de urotelio superior. La cirugía del uréter distal influye en la evolución?

OBJECTIVE: To compare evolution in patients with urothelial upper tract tumor (UUTT) in whom we performed the classic open approach to the distal ureter with those in whom whe performed the endoscopic approach. We study the bladder recurrences in each group and the factors which may influx on the evolution. MATERIAL AND METHODS: Retrospective review of nephroureterectomies in our department in the last 20 years. Group A (n:24): double incision (lumbar and pelvic incision), Group B (n:29): endoscopical approach of the distal ureter and classic lumbar incision. A descriptive study is first performed in which we review: sex, and patients age, background transuretral resection of bladder tumor (TURBT), UUTT side, and UUTT location (calices, pelvis or urether). Pathological stage and tumor grade are also exposed. Secondly, a review of the bladder recurrences in each group is performed. In order to find differences between de groups we used the Fisher's Exact test. RESULTS: We observed that in terms of bladder recurrence there is a statistically significant difference between the two groups favoring Group B (p < 0.036), which means that there are less bladder recidives when perform endoscopic approach of distal ureter. Noneless due to the groups inhomogeneity in tumor stage, grade, and location, this differences seem to be associated to these sigues, more than to the approach to the ureter as an independant variable. In that concerning to the eventual relationship between bladder recidive and background of previous TURBT, we have not found any differences between the two groups but there are statystically significant difference in the global series. The small number of recurrences (13) does not allow us to establish a well based conclusion on this issue, but it seems that the background of previous TURBT is an important factor that may influx in posterior bladder recurrences. CONCLUSIONS: In our results, endoscopic approach of distal ureter in nephroureterectomy for UUTT does seems to positively influx in the posterior chance of bladder recurrences. But the studied sample is small and the two groups have not been aleatorized because of ethical reasons. May the low number of cases affect the test's statistical potency. It seems that previous TURBT may conditionate these recurrences, as we show in global serie. It should be necessary a prospective and statistically analised multicenter trial to understand if distal ureter approach influx on the evolution of these tumors.

Neoplasia vesical tras nefroureterectomía por tumores de urotelio superior. ¿La cirugía del uréter distal influye en la evolución? / Bladder neoplasm after nephroureterectomy for upper urinary tract tumor. Does distal ureter surgery influx on the evolution?

Objetivo. Comparar la evolución de los pacientes con tumor de urotelio superior (TUS) en los cuales realizamos, durante la nefroureterectomía, abordaje clásico abierto de desinserción del uréter distal con aquellos en los que realizamos abordaje endoscópico. Estudiamos el índice de recurrencias vesicales en cada grupo y los factores que pueden influir en la evolución. Material y métodos. Se realiza una revisión retrospectiva de las nefroureterectomías realizadas en nuestro Servicio en los últimos 20 años. Se dividen en dos grupos. Grupo A (n: 29): doble incisión (lumbar y pélvica), Grupo B (n: 24): abordaje endoscópico del uréter distal e incisión lumbar clásica. Se realiza en primer lugar un estudio descriptivo en el que se expone: sexo y edad del paciente, antecedentes de resección vesical previa por tumor (RTU-V), lado del TUS, y localización (cálices, pelvis o uréter). También revisamos estadio patológico y grado tumoral. En segundo lugar se realiza una revisión de las recidivas vesicales en cada grupo. Para establecer posibles diferencias utilizamos el Test exacto de Fisher. Resultados. Observamos diferencias estadísticamente significativas en términos de recurrencias vesicales a favor del grupo B (p<0.036), lo que significa que existen menos recidivas vesicales en nuestra serie en el grupo de cirugía endoscópica. Sin embargo debido a la inhomogeneidad de los grupos en estadio, grado y localización tumoral, esta diferencia parece más bien atribuible a estas características, más que a la vía de abordaje como factor independiente. En lo referente a la relación entre la recidiva vesical y antecedentes de RTU-V no hemos encontrado diferencias entre los grupos pero si existe diferencia en la serie global. El escaso número de recurrencias (13) no nos permite establecer una conclusión clara en este problema, aunque parece que el antecedente de neoplasia previa de vejiga influye en la posibilidad de recurrencia vesical. Conclusiones. En nuestro resultado el abordaje endoscópico en la nefroureterectomía por TUS parece influir en la posterior aparición de menos recidivas en vejiga, sin embargo la muestra es corta y los grupos no son homogéneos porque el abordaje del uréter no se ha aleatorizado por razones éticas obvias. Si parece existir relación entre la existencia de antecedentes de RTU-V y la aparición de recidivas posteriores, como mostramos en la serie global. En cualquier caso son necesarios estudios prospectivos randomizados multicéntricos para conocer si el abordaje del uréter distal influye en la posterior aparición de recidivas vesicales

Objective. To compare evolution in patients with urothelial upper tract tumor (UUTT) in whom we performed the classic open approach to the distal ureter with those in whom whe performed the endoscopic approach. We study the bladder recurrences in each group and the factors which may influx on the evolution. Material and methods. Retrospective review of nephroureterectomies in our department in the last 20 years. Group A (n:24): double incision (lumbar and pelvic incision), Group B (n:29): endoscopical approach of the distal ureter and classic lumbar incision. A descriptive study is first performed in which we review: sex, and patients age, background transuretral resection of bladder tumor (TURBT), UUTT side, and UUTT location (calices, pelvis or urether). Pathological stage and tumor grade are also exposed. Secondly, a review of the bladder recurrences in each group is performed In order to find differences between de groups we used the Fisher´s Exact test. Results. We observed that in terms of bladder recurrence there is a statistically significant difference between the two groups favoring Group B (p< 0.036), which means that there are less bladder recidives when perform endoscopic approach of distal ureter. Noneless due to the groups inhomogeneity in tumor stage, grade, and location, this differences seem to be associated to these sigues, more than to the approach to the ureter as an independant variable. In that concerning to the eventual relationship between bladder recidive and background of previous TURBT, we have not found any differences between the two groups but there are statystically significant difference in the global series. The small number of recurrences (13) does not allow us to establish a well based conclusion on this issue, but it seems that the background of previous TURBT is an important factor that may influx in posterior bladder recurrences. Conclusions. In our results, endoscopic approach of distal ureter in nephroureterectomy for UUTT does seems to positively influx in the posterior chance of bladder recurrences. But the studied sample is small and the two groups have not been aleatorized because of ethical reasons. May the low number of cases affect the test´s statistical potency. It seems that previous TURBT may conditionate these recurrences, as we show in global serie. It should be necessary a prospective and statistically analised multicenter trial to understand if distal ureter approach influx on the evolution of these tumors

[Vesico-uterine fistula, a rare complication of cesarean section]. / Fístula vésicouterina, una rara complicación del parto por cesárea.

We present the case of a vesicouterine fistula secondary to a caesarean section indicated due to the disproportion the pelvis and the head of the baby. This kind of fistula is due fundamentally to obstetric causes, especially to caesarean sections in developed countries and to prolonged labour in developing countries. The commonest clinical presentation is urinary incontinence in the form of continuous or intermittent urinary leaks. Surgical treatment is generally the therapy of choice, although, in the case of small fistulas, conservative treatment is feasible. The best form of prevention is correct indication of caesarean section and careful surgical technique.