[Impact of the Interdisciplinary Chronic Pain Rehabilitation Programme in patients with and without sleep disorders]. / Impacto del Programa de Rehabilitación Interdisciplinario de Dolor Crónico en pacientes sin y con trastornos del sueño.

INTRODUCTION: Sleep disorders and chronic pain are linked to each other bidirectionally. Both are related to affective disorders, fatigue, depression, anxiety and drug abuse, and have a significant effect on quality of life. The Interdisciplinary Pain Programme (IDP) aims to relieve the patients' pain and improve their functionality by incorporating healthy postural, sleep and nutritional habits, relaxation techniques, physical exercise and cognitive-behavioural mechanisms. PATIENTS AND METHODS: A retrospective, observational, cross-sectional study was conducted. A total of 323 patients with chronic pain who completed the IDP were examined. They were assessed at the beginning and at the end of the programme with pain, depression, quality of life and insomnia scales, and were then compared between groups with and without insomnia, that is, with an insomnia severity index (ISI) less than 15 versus greater than or equal to 15. Fifty-eight patients were studied by means of polysomnography. RESULTS: A significant improvement (p < 0.0001) in pain, depression and quality of life, as assessed by the visual analogue scale (VAS), the Beck inventory and the Short Form-36 (SF-36) questionnaire was observed in chronic pain patients with an ISI below 15 and in those with an ISI greater than or equal to 15. The results were superior in the group of patients with insomnia. The presence of a high apnoea and hypopnoea index and periodic lower limb movements in patients was not related to improvements on the Beck, SF-36, ISI and VAS scales. CONCLUSIONS: In conclusion, IDP benefits patients with chronic non-cancer-induced pain in several affected areas, in addition to pain, due to a comprehensive treatment. Polysomnography can help diagnose specific pathologies and individualise pharmacological treatment.

TITLE: Impacto del Programa de Rehabilitación Interdisciplinario de Dolor Crónico en pacientes sin y con trastornos del sueño.Introducción. Los trastornos del sueño y el dolor crónico están relacionados bidireccionalmente. Ambos están relacionados con trastornos afectivos, fatiga, depresión, ansiedad y abuso de fármacos, y afectan significativamente a la calidad de vida. El objetivo del Programa Interdisciplinario de Dolor (PRID) es aliviar el dolor del paciente y mejorar su funcionalidad a través de la incorporación de hábitos posturales, del sueño y nutricionales saludables, técnicas de relajación, ejercicio físico y mecanismos cognitivoconductuales. Pacientes y métodos. Se realizó un estudio retrospectivo, observacional y transversal. Se examinó a 323 pacientes con dolor crónico que completaron el PRID. Se les evaluó al principio y al final del programa con escalas de dolor, depresión, calidad de vida e insomnio, y se les comparó entre grupos con y sin insomnio ­índice de gravedad del insomnio (ISI) menor de 15 frente a mayor o igual a 15­. Se estudió a 58 pacientes con polisomnografía. Resultados. Se observó una mejoría significativa (p < 0,0001) del dolor, la depresión y la calidad de vida evaluados mediante la escala analógica visual (EVA), el inventario de Beck y el cuestionario Short Form-36 (SF-36), tanto en pacientes con dolor crónico con ISI menor de 15 como ISI mayor o igual a 15. Los resultados fueron superiores en el grupo de pacientes con insomnio. La presencia de un índice de apneas e hipopneas elevado y movimientos periódicos de los miembros inferiores en los pacientes no se relacionó con la mejoría de las escalas de Beck, SF-36, ISI y EVA. Conclusiones. En conclusión, el PRID beneficia a los pacientes con dolor crónico no oncológico en varias esferas afectadas, además del dolor, mediante un tratamiento integral. La polisomnografía puede ayudar a diagnosticar patologías específicas e individualizar el tratamiento farmacológico.

A fuzzy approach for feature extraction of brain tissues in Non-Contrast CT / Un enfoque difuso para la extracción de características de tejidos cerebrales en TC no contrastada

Abstract: In neuroimaging, brain tissue segmentation is a fundamental part of the techniques that seek to automate the detection of pathologies, the quantification of tissues or the evaluation of the progress of a treatment. Because of its wide availability, lower cost than other imaging techniques, fast execution and proven efficacy, Non-contrast Cerebral Computerized Tomography (NCCT) is the most used technique in emergency room for neuroradiology examination, however, most research on brain segmentation focuses on MRI due to the inherent difficulty of brain tissue segmentation in NCCT. In this work, three brain tissues were characterized: white matter, gray matter and cerebrospinal fluid in NCCT images. Feature extraction of these structures was made based on the radiological attenuation index denoted by the Hounsfield Units using fuzzy logic techniques. We evaluated the classification of each tissue in NCCT images and quantified the feature extraction technique in synthetic images from real tissues with a sensitivity of 92% and a specificity of 96% for images from cases with slice thickness of 1 mm, and 96% and 98% respectively for those of 1.5 mm, demonstrating the ability of the method as feature extractor of brain tissues.

Resumen: En neuroimagen, la segmentación de tejidos cerebrales es una parte fundamental de las técnicas que buscan automatizar la detección de patologías, la cuantificación de tejidos o la evaluación del progreso de un tratamiento. Debido a su amplia disponibilidad, menor costo que otras técnicas de imagen, rápida ejecución y eficacia probada, la tomografía computarizada cerebral sin contraste (TCNC) es la técnica mayormente utilizada en emergencias para el examen neurorradiológico, sin embargo, la dificultad inherente que representa la segmentación de los tejidos cerebrales, hace que la mayoría de las investigaciones sobre la segmentación del cerebro se centren en la resonancia magnética. En este trabajo se realizó la caracterización de tres tejidos cerebrales: sustancia blanca, sustancia gris y líquido cefalorraquídeo en imágenes TCNC. Dichas estructuras fueron caracterizadas con base en el índice de atenuación radiológica denotadas por las Unidades Hounsfield utilizando técnicas de lógica difusa. Se evaluó la caracterización de cada tejido en diversos cortes de TCNC y se cuantificó la técnica de extracción de características en imágenes sintéticas a partir de tejidos reales con una sensibilidad de 92% y una especificidad de 96% para tejidos en cortes de 1 mm de grosor y 96% y 98% para los de 1.5 mm demostrando la habilidad del método como extractor de características de los tejidos cerebrales.

Onco-TESE: obtención de espermatozoides tras orquiectomía radical por tumor testicular y azoospermia / ONCO-TESE: Obtaining spermatozoa after radical orchiectomy for testicular tumour and azoospermia

Objetivo: Existe la posibilidad de diagnosticar una azoospermia en caso de tumor testicular en pacientes que desean preservar su fertilidad. Nuestro objetivo es presentar una técnica de obtención de espermatozoides del testículo con tumor ex-vivo con el fin de preservar la fertilidad en estos pacientes. Material y métodos: Paciente de 34 años, remitido por azoospermia. A la exploración física presenta nódulo en polo inferior del testículo izquierdo. En la ecografía escrotal, el testículo presentaba microcalcificaciones dispersas y una masa hipoecoica de 1 cm en el polo inferior. Los marcadores tumorales fueron negativos y el TC no evidenció enfermedad a distancia. Se realizó orquiectomía radical izquierda más colocación de prótesis testicular. Posteriormente se practicó cirugía de banco con extracción de túbulos seminíferos en el polo superior. Resultados: De las muestras remitidas se identificaron 4 espermatozoides móviles progresivos y uno no progresivo por campo, realizando criopreservación de 2 muestras. El informe anatomopatológico informó de la presencia de un seminoma de 1,3 × 1 cm con márgenes libres y sin invasión de la rete testis (estadio I). Se realizó una técnica de reproducción asistida tipo ICSI a su pareja con los espermatozoides congelados con el resultado de embarazo, y posterior nacimiento de un niño vivo y sano. Conclusión: Proponemos que la realización de esta técnica es el método de elección para la obtención de espermatozoides en pacientes que presenten conjuntamente una azoospermia con tumor testicular y que deseen preservar su fertilidad

Objective: There is the possibility of diagnosing azoospermia in cases of testicular tumours in patients who wish to preserve fertility. Our objective is to present a technique for obtaining spermatozoa from testicles with ex vivo tumours in order to preserve fertility in these patients. Material and methods: A 34-year-old patient was referred for azoospermia. The physical examination revealed a node in the lower pole of the left testicle. In the scrotal ultrasound, the testicle presented disperse microcalcifications and a 1-cm hypoechoic mass in the lower pole. The tumour markers were negative, and the CT showed no distant disease. Left radical orchiectomy was performed, along with the placement of a testis prosthesis. Bench surgery was then performed, with extraction of the seminiferous tubules in the upper pole. Results: Of the submitted samples, 4 progressive and 1 nonprogressive motile spermatozoa were identified per field. Two samples were cryopreserved. The pathological report indicated the presence of a seminoma measuring 1.3 × 1 cm, with free margins and with no invasion of the rete testis (stage I). An assisted reproduction technique (intracytoplasmic sperm injection) was performed on the patient's partner with the frozen spermatozoa, which resulted in pregnancy and the subsequent birth of a healthy child. Conclusion: We propose this technique as the method of choice for obtaining spermatozoa from patients who simultaneously present azoospermia and testicular tumours and who wish to preserve their fertility

ONCO-TESE: Obtaining spermatozoa after radical orchiectomy for testicular tumour and azoospermia.

OBJECTIVE: There is the possibility of diagnosing azoospermia in cases of testicular tumours in patients who wish to preserve fertility. Our objective is to present a technique for obtaining spermatozoa from testicles with ex vivo tumours in order to preserve fertility in these patients. MATERIAL AND METHODS: A 34-year-old patient was referred for azoospermia. The physical examination revealed a node in the lower pole of the left testicle. In the scrotal ultrasound, the testicle presented disperse microcalcifications and a 1-cm hypoechoic mass in the lower pole. The tumour markers were negative, and the CT showed no distant disease. Left radical orchiectomy was performed, along with the placement of a testis prosthesis. Bench surgery was then performed, with extraction of the seminiferous tubules in the upper pole. RESULTS: Of the submitted samples, 4 progressive and 1 nonprogressive motile spermatozoa were identified per field. Two samples were cryopreserved. The pathological report indicated the presence of a seminoma measuring 1.3 × 1 cm, with free margins and with no invasion of the rete testis (stage I). An assisted reproduction technique (intracytoplasmic sperm injection) was performed on the patient's partner with the frozen spermatozoa, which resulted in pregnancy and the subsequent birth of a healthy child. CONCLUSION: We propose this technique as the method of choice for obtaining spermatozoa from patients who simultaneously present azoospermia and testicular tumours and who wish to preserve their fertility.

Afectación vesical metastásica del cáncer de mama / Metastatic urinary bladder involvement in breast cancer

OBJETIVO: Aportar a la literatura tres casos poco habituales de tumor primario de mama con metástasis a vejiga. MÉTODO: Presentación de los tres casos clínicos y revisión de la literatura. RESULTADO: Se trataba de tres mujeres con una edad media de 49,3 años, diagnosticadas de carcinoma mamario lobulillar infiltrante. Dos de ellas presentaron hematuria tras el diagnóstico de cáncer de mama. La tercera se diagnostica como hallazgo incidental tras TAC de control. Al diagnóstico de las metástasis vesicales ya presentaban implantes en otros órganos. El tratamiento en los tres casos fue paliativo. Las pacientes fallecieron por enfermedad cáncer específica. CONCLUSIONES: La presencia de metástasis vesicales por cáncer de mama son infrecuentes. La aparición de síntomas del tracto urinario en estas pacientes requiere de un estudio diagnóstico con el fin de descartar dichas metástasis

OBJECTIVE: To contribute to the literature with three unusual cases of primary breast tumor with metastasis to the urinary bladder. METHODS: Presentation of the three clinical cases and bibliographic review. RESULTS: Three women, with an average age of 49.3 years, were diagnosed with invasive lobular breast carcinoma. Two of them suffered from hematuria after being diagnosed with breast cancer. The third patient was diagnosed incidentally after a routine CT scan. Upon diagnosis of the bladder metastases, they already had metastasis in other locations. The treatment of the three cases was palliative. The cause of death was due to additional pathologies. CONCLUSIONS: The presence of bladder metastases due to breast cancer is infrequent. The appearance of urinary tract symptoms in these patients requires a diagnostic study in order to rule out metastases

Evaluación del impacto de una intervención educativa sobre el conocimiento y los cuidados de enfermería del drenaje ventricular externo / Evaluation of the impact of an educational intervention on the knowledge and nursing care of the external ventricular drain

No disponible

Cálculo del riesgo biológico de multirrecidiva y progresión del carcinoma urotelial no músculo-invasivo mediante nuevos modelos matemáticos / Risk estimation of multiple recurrence and progression of non muscle invasive bladder carcinoma using new mathematical models

Objetivo: El carcinoma urotelial de vejiga no músculo-invasivo (CVNMI) se caracteriza por eventos repetidos en forma de recidiva tumoral o la aparición de progresión tumoral. La aplicación del modelo de Cox para analizar estos eventos no es válido, ya que los tiempos entre recurrencias de un mismo paciente pueden estar fuertemente correlacionados, y se requiere otro tipo de modelización matemática. El objetivo del estudio es aplicar nuevos modelos matemáticos apropiados a las características biológicas del CVNMI. Material y métodos: Novecientos sesenta pacientes con diagnóstico de CVNMI con una media de seguimiento de 48,1 (3-160) meses y validación del modelo con 240 pacientes de otro centro. Se realizó resección transuretral con biopsias aleatorias. Las variables analizadas fueron: número y tamaño tumoral, edad, tratamiento adyuvante y características anatomopatológicas del tumor (grado y estadio). Para el análisis estadístico se utilizaron extensiones del modelo de Cox como el modelo de fragilidad conjunta para la multirrecidiva y progresión tumoral. Para la validación del modelo se utilizó el índice de concordancia. Resultados: Cuatrocientos sesenta y ocho (48,8%) pacientes tuvieron una recidiva tumoral y 52 (5,4%) presentaron progresión tumoral. Las variables que formaron parte del modelo para múltiple recidiva fueron la edad, el grado, el número, el tratamiento empleado y el número previo de recidivas, mientras que para progresión fueron la edad, el estadio y el grado. El índice de concordancia fue 0,64 para la multirrecidiva y 0,85 para la progresión. Conclusión: La alta concordancia obtenida y la validación con una fuente externa permite predecir con mayor precisión el riesgo de multirrecidiva y progresión

Objective: To apply new mathematical models according to Non Muscle Invasive Bladder Carcinoma (NMIBC) biological characteristics and enabling an accurate risk estimation of multiple recurrences and tumor progression. The classical Cox model is not valid for the assessment of this kind of events becausethe time betweenrecurrencesin the same patientmay be stronglycorrelated. These new models for risk estimation of recurrence/progression lead to individualized monitoring and treatment plan. Materials and methods: 960 patients with primary NMIBC were enrolled. The median follow-up was 48.1 (3-160) months. Results obtained were validated in 240 patients from other center. Transurethral resection of the bladder (TURB) and random bladder biopsy were performed. Subsequently, adjuvant localized chemotherapy was performed. The variables analyzed were: number and tumor size, age, chemotherapy and histopathology. The endpoints were time to recurrence and time to progression. Cox model and its extensions were used as joint frailty model for multiple recurrence and progression. Model accuracy was calculated using Harrell's concordance index (c-index). Results: 468 (48.8%) patients developed at least one tumor recurrence and tumor progression was reported in 52 (5.4%) patients. Variables for multiple-recurrence risk are: age, grade, number, size, treatment and the number of prior recurrences. All these together with age, stage and grade are the variables for progression risk. Concordance index was 0.64 and 0.85 for multiple recurrence and progression respectively. Conclusion: the high concordance reported besides to the validation process in external source, allow accurate multi-recurrence/progression risk estimation. As consequence, it is possible to schedule a follow-up and treatment individualized plan in new and recurrent NMCB cases

Microdeleciones del gen AZF: serie de casos y revisión de la literatura / AZF gene microdeletions: Case series and literature review

Objetivo: Aproximadamente un 10% de los pacientes con azoospermia no obstructiva y un 5% de pacientes con oligozoospermia severa presentan microdeleciones en las regiones azoospermic factor (AZF) del cromosoma Y. El objetivo principal de este estudio es analizar las características clínicas y patológicas de estos pacientes y compararlos con la literatura previa. Material y métodos: Estudio retrospectivo de 11 pacientes con diagnóstico de azoospermia u oligozoospermia y presencia de microdeleciones AZFa, AZFb, AZFc o sus combinaciones. Resultados: La microdeleción en la región AZFc apareció en un 45% de pacientes, AZFa en el 33% y un 10% presentaron mutación en las 3 regiones analizadas (AZFa, b y c). El 91% de los pacientes con estas microdeleciones presentaron azoospermia con un volumen testicular disminuido en el 62,5%. Conclusión: Las microdeleciones de la región AZF se asocian a azoospermia y una baja expectativa de recuperación de espermatozoides en la biopsia testicular, sin alterar significativamente la función hormonal

Objective: Aproximately 10% of patients with non-obstructive azoospermia and 5% with non-obstructive severe oligozoospermia carry AZF region microdeletions (AZoospermic Factor) in the Y chromosome. The aim of this study is to analize the clinical and pathological findings in this group of patients and compare them with the previous evidence. Material and methods: Retrospective study of 11 patients with diagnosis of azoospermia or oligozoospermia and the presence of AZFa, AZFb, AZFc microdeletions or any combination of them. Results: Microdeletions of AZFc region were found in 45% of cases, AZFa in 33% and a 10% showed a deletion of the three regions (a,b and c). 91% of them demonstrated azoospermia with low testicular volume in 62,5% cases. Conclusion: Microdeletions of AZF regions are associated with azoospermia and a low expectation of sperm retrieval in testicular biopsy. On the other hand, they seem not related with significative modifications on the hormone profile

Endoftalmitis endógena bilateral por Candida glabrata posterior a cirugía bariátrica complicada / Bilateral endogenous ophthalmitis due to Candida glabrata after complicated bariatric surgery

CASO CLÍNICO: Mujer de 43 años presenta disminución de agudeza visual en ojo derecho. En la evaluación, se encuentran lesiones retinianas «en bolas de nieve» en ambos ojos. En ausencia de mejoría con tratamiento empírico antifúngico intravítreo, se realiza cultivo de vítreo y se halla Candida glabrata. La paciente recibe anfotericina B intravítrea y tratamiento sistémico con caspofungina y anfotericina B complejo lipídico. Discusión: La endoftalmitis endógena fúngica es una afección ocular grave. Existen escasos artículos de endoftalmitis endógena por Candida glabrata. Los regímenes de tratamiento para endoftalmitis por Candida incluyen combinaciones de antifúngicos sistémicos o intravítreos, así como vitrectomía

CASE REPORT: A 43 year-old female presented with decreased visual acuity in the right eye. «Snowball-like» retinal lesions were found in both eyes on examination. Due to a lack of improvement with intravitreal antifungal empirical treatment, vitreous culture was performed and Candida glabrata was isolated. The patient then received intravitreal amphotericin B, as well as systemic treatment with caspofungin and amphotericin B lipid complex. DISCUSSION: Endogenous fungal endophthalmitis is a sight-threatening condition. There are few reports of Candida glabrata endogenous endophthalmitis. Treatment regimens for Candida endophthalmitis include combinations of systemic and/or intravitreal antifungals, as well as vitrectomy

AZF gene microdeletions: case series and literature review.

OBJECTIVE: Aproximately 10% of patients with non-obstructive azoospermia and 5% with non-obstructive severe oligozoospermia carry AZF region microdeletions (AZoospermic Factor) in the Y chromosome. The aim of this study is to analize the clinical and pathological findings in this group of patients and compare them with the previous evidence. MATERIAL AND METHODS: Retrospective study of 11 patients with diagnosis of azoospermia or oligozoospermia and the presence of AZFa, AZFb, AZFc microdeletions or any combination of them. RESULTS: Microdeletions of AZFc region were found in 45% of cases, AZFa in 33% and a 10% showed a deletion of the three regions (a,b and c). 91% of them demonstrated azoospermia with low testicular volume in 62,5% cases. CONCLUSION: Microdeletions of AZF regions are associated with azoospermia and a low expectation of sperm retrieval in testicular biopsy. On the other hand, they seem not related with significative modifications on the hormone profile.

Risk estimation of multiple recurrence and progression of non muscle invasive bladder carcinoma using new mathematical models.

OBJECTIVE: To apply new mathematical models according to Non Muscle Invasive Bladder Carcinoma (NMIBC) biological characteristics and enabling an accurate risk estimation of multiple recurrences and tumor progression. The classical Cox model is not valid for the assessment of this kind of events becausethe time betweenrecurrencesin the same patientmay be stronglycorrelated. These new models for risk estimation of recurrence/progression lead to individualized monitoring and treatment plan. MATERIALS AND METHODS: 960 patients with primary NMIBC were enrolled. The median follow-up was 48.1 (3-160) months. Results obtained were validated in 240 patients from other center. Transurethral resection of the bladder (TURB) and random bladder biopsy were performed. Subsequently, adjuvant localized chemotherapy was performed. The variables analyzed were: number and tumor size, age, chemotherapy and histopathology. The endpoints were time to recurrence and time to progression. Cox model and its extensions were used as joint frailty model for multiple recurrence and progression. Model accuracy was calculated using Harrell's concordance index (c-index). RESULTS: 468 (48.8%) patients developed at least one tumor recurrence and tumor progression was reported in 52 (5.4%) patients. Variables for multiple-recurrence risk are: age, grade, number, size, treatment and the number of prior recurrences. All these together with age, stage and grade are the variables for progression risk. Concordance index was 0.64 and 0.85 for multiple recurrence and progression respectively. CONCLUSION: the high concordance reported besides to the validation process in external source, allow accurate multi-recurrence/progression risk estimation. As consequence, it is possible to schedule a follow-up and treatment individualized plan in new and recurrent NMCB cases.

[Bilateral endogenous ophthalmitis due to Candida glabrata after complicated bariatric surgery]. / Endoftalmitis endógena bilateral por Candida glabrata posterior a cirugía bariátrica complicada.

CASE REPORT: A 43 year-old female presented with decreased visual acuity in the right eye. «Snowball-like¼ retinal lesions were found in both eyes on examination. Due to a lack of improvement with intravitreal antifungal empirical treatment, vitreous culture was performed and Candida glabrata was isolated. The patient then received intravitreal amphotericin B, as well as systemic treatment with caspofungin and amphotericin B lipid complex. DISCUSSION: Endogenous fungal endophthalmitis is a sight-threatening condition. There are few reports of Candida glabrata endogenous endophthalmitis. Treatment regimens for Candida endophthalmitis include combinations of systemic and/or intravitreal antifungals, as well as vitrectomy.

Prognostic nomogram for disease-free survival in patients with renal adenocarcinoma.

OBJECTIVE: The aim of this study was to develop a postoperative prognostic nomogram for disease-free survival in patients with renal adenocarcinoma. MATERIALS AND METHODS: A total of 224 patients with organ-confined or locally advanced renal adenocarcinoma were treated with radical or partial nephrectomy. The variables included in the model were age, histological type, pathological stage, Fuhrman grade and DNA ploidy. Tumor recurrence was defined as any clinical evidence of recurrence. The probability of progression-free survival was calculated using the Kaplan-Meier estimate, and multivariate analysis was performed using a Cox regression. The nomogram was created using the data obtained from the Cox regression. RESULTS: Tumor recurrence was detected in 89 patients (39.74%). The median progression-free time in these patients was 9.55 months (range 0-133). Of these patients, 70.9% relapsed during the first 2 years, and only 15 patients (6.9%) were alive but ill at the end of the study. The probability of progression-free survival at 5 and 10 years was 66.64 and 61.97%, respectively. We performed a statistical validation of the model with accurate predictions that were discriminated with a confidence interval of 0.75 (comparing the predicted and actual probability). According to the nomogram obtained, patients with low-grade, diploid, organ-confined tumors would be candidates for follow-up not exceeding 5 years due to the low probability of recurrence (<40 points). CONCLUSION: The nomogram we developed is clinically relevant and can provide prognostic information for both patients and researchers. In addition, it can be used by researchers during the monitoring protocols that categorize patients based on their relative risk of disease progression.

¿Debe emplearse de manera sistemática el cateterismo ureteral en los implantes renales? / Should ureteral catheterization be systematically used in kidney transplants?

Objetivo: evaluar si el uso sistemático de catéter ureteral doble J en las ureteroneocistostomías de los trasplantes renales reduce la tasa de complicaciones. Material y métodos: estudio prospectivo comparativo no aleatorizado de grupos paralelos, en194 trasplantes renales. Se establecieron dos grupos homogéneos: 111 pacientes con catéter doble J y otro de 83 pacientes sin catéter. Analizamos la incidencia de complicaciones entre ambos grupos, mediante análisis univariante comparativo (test de X2) y el análisis multivariante (regresión logística). Resultados: en el grupo con catéter las complicaciones globales aparecieron en el 22,2% frente al 43,3% del grupo sin catéter (p = 0,04). En función del reimplante ureteral aparecieron complicaciones en el 38,12% del reimplante tipo Paquin frente al 20,3% en Lich-Gregoir (p = 0,09). Enel grupo con catéter se evidenció una (0,9%) fístula urinaria frente a 5 (6%) del grupo sin catéter (p = 0,08), y 3 (2,7%) estenosis de la anastomosis ureterovesical en el grupo con catéter frente a 7 (8,4%) del grupo sin él (p = 0,13). El análisis multivariante demostró que la no utilización de catéter aumenta el riesgo de sufrir complicaciones relacionadas con el reimplante (OR 2,55;IC 95%: 1,37-4,75). El riesgo de fístula aumentó significativamente al no colocar catéter (OR:9,19; IC 95%: 1,01-84,7). No hubo diferencias entre ambos grupos en cuanto a las infecciones del tracto urinario, produciéndose tres (2,7%) en el grupo con catéter y una (1,2%) en el grupo sin catéter (p = 0,63). Conclusiones: la colocación de catéter doble J reduce las complicaciones relacionadas con el reimplante ureteral sin aumentar la morbilidad asociada a su uso (AU)

Objective: To assess if the systematic use of double J ureteral catheters in ureteroneocystostomies of kidney transplants reduces the rate of complications. Materials and methods: Non-randomized prospective, comparative study of parallel groups in194 kidney transplants. We established two equal groups, 111 patients with double J catheter and another of 83 catheter-free patients. We studied the incidence of complications between both groups by means of a univariate comparative study (X2 test) and a multivariate analysis(logistic regression). Results: In the catheter group, the overall complications appeared in 22.2% as opposed to43.3% of the catheter-free group (p = 0.04). Depending on the ureteral transplant, complications appeared in 38.12% of the Paquin type reimplantation as opposed to the 20.3% in Lich-Gregoir (p = 0.09). There was evidence of 1 (0.9%) urinary fistula in the catheter group as opposed to 5 (6%) in the catheter-free group (p = 0.08), and 3 (2.7%) ureterovesical anastomosis stricture in the group with catheter against 7 (8.4%) of the catheter-free group (p = 0.13). The multivariate analysis showed that not using the catheter increases the risk of suffering complications related to reimplantation (OR: 2.55; IC 95%, 1.37-4.75). The risk of fistula increased significantly when a catheter was not placed (OR 9.19, IC 95%, 1.01-84.7). There were no differences between the two groups as regards urinary tract infections; there were 3 (2.7%) in the catheter group and 1(1.2%) in the catheter-free group (p = 0,63). Conclusions: The placement of a double J catheter reduces complications related to ureteral reimplantation without increasing the morbidity associated with their use (AU)

[Should ureteral catheterization be systematically used in kidney transplants?]. / ¿Debe emplearse de manera sistemática el cateterismo ureteral en los implantes renales?

OBJECTIVE: To assess if the systematic use of double J ureteral catheters in ureteroneocystostomies of kidney transplants reduces the rate of complications. MATERIALS AND METHODS: Non-randomized prospective, comparative study of parallel groups in 194 kidney transplants. We established two equal groups, 111 patients with double J catheter and another of 83 catheter-free patients. We studied the incidence of complications between both groups by means of a univariate comparative study (X2 test)and a multivariate analysis (logistic regression). RESULTS: In the catheter group, the overall complications appeared in 22.2% as opposed to 43.3% of the catheter-free group (p=0.04). Depending on the ureteral transplant, complications appeared in 38.12% of the Paquin type reimplantation as opposed to the 20.3% in Lich-Gregoir (p=0.09). There was evidence of 1 (0.9%) urinary fistula in the catheter group as opposed to 5 (6%) in the catheter-free group (p=0.08), and 3 (2.7%) ureterovesical anastomosis stricture in the group with catheter against 7 (8.4%) of the catheter-free group (p=0.13). The multivariate analysis showed that not using the catheter increases the risk of suffering complications related to reimplantation (OR: 2.55; IC 95%, 1.37-4.75). The risk of fistula increased significantly when a catheter was not placed (OR 9.19, IC 95%, 1.01-84.7). There were no differences between the two groups as regards urinary tract infections; there were 3 (2.7%) in the catheter group and 1 (1.2%) in the catheter-free group (p=0,63). CONCLUSIONS: The placement of a double J catheter reduces complications related to ureteral reimplantation without increasing the morbidity associated with their use.

Is a third endoscopic treatment for vesicoureteral reflux indicated if previous attempts have failed?

OBJECTIVE: To evaluate the efficacy of a third endoscopic injection to correct vesicoureteral reflux (VUR). PATIENTS AND METHODS: This was a prospective study of 605 patients, of whom 42 (6.4%), involving 44 (4%) ureteral units, received a third injection. The results were analysed regarding VUR grade and aetiology, substance used, volume, location and morphology of the mound, presence of poor prognostic factors, the urologist's experience, and complications. RESULTS: The treatment resolved the VUR in 38 (86.4%) units, 22 of primary cause (91.6%) and 16 with anatomical/functional abnormalities (80%) (no significant difference; P = 0.26). There was also no significant difference in success rate with regard to the substance injected (P = 0.23), the degree of VUR (P = 0.76) or the volume injected (P = 0.17). The success rate was higher (96.9%) if a less experienced urologist had performed the previous procedure versus a more experienced urologist (54.5%), and this difference was significant (P < 0.005). There was one complication (haematuria) (2.3%). CONCLUSION: Third treatment presents a similar efficacy to first and second treatments, with a very low rate of complications, and could be indicated before open surgery.