Incidencia del carcinoma transicional del tracto urinario superior en España / Incidence of upper tract urothelial carcinoma in Spain

INTRODUCCIÓN Y OBJETIVOS: El objetivo primario del presente estudio es conocer la incidencia real de los tumores transicionales del tracto urinario superior (TTUS) en nuestro medio. MATERIAL Y MÉTODOS: Estudio epidemiológico prospectivo y multicéntrico desarrollado en 31 centros hospitalarios españoles a través de la Plataforma de Investigación de Estudios Multicéntricos (PIEM) de la Asociación Española de Urología (AEU). El reclutamiento se inició el 01 de mayo de 2017, finalizando el 30 de abril de 2018. La base de datos final incluyó 402 casos válidos. El manejo estadístico de los datos se realizó mediante el software SPSS V 23 y EPIDAT V 3.4. RESULTADOS: Incidencia ajustada por edad a la población española de 3,27 casos/100.000 habitantes/año (2,93-3,61, IC 95%); para la población europea fue de 3,3 (2,96-3,66, IC 95%). La edad media al diagnóstico fue de 70 años, siendo el 77% de los pacientes varones. El diagnóstico fue incidental en el 34% de los casos. La localización más frecuente fue la pielocalicial (54%), seguida por el uréter distal (22%). La ureterorrenoscopia previa al tratamiento definitivo se realizó en 114 pacientes, modificando la indicación inicial del tratamiento en el 58% de los casos. La nefrectomía radical fue el tratamiento empleado en 311 pacientes; en 76 casos (20% del total) el tratamiento fue conservador. Se registraron complicaciones en el 69% de los casos tratados, la mayoría Clavien 1 y 2 (86% de todas las complicaciones). La mortalidad postoperatoria global fue de 1,76%, asociada únicamente a la realización de nefroureterectomía. CONCLUSIONES: La incidencia ajustada por edad de los TTUS es de 3,27 en España y de 3,3 en Europa. La ureterorrenoscopia como elemento de diagnóstico permite modificar la indicación inicial del tratamiento en el 58% de los pacientes

INTRODUCTION AND OBJECTIVES: The incidence of upper urinary tract tumors is currently unknown. The aim of this study is to determine the real incidence of upper tract urothelial carcinoma (UTUC) in Spain. MATERIAL AND METHODS: A descriptive, prospective and multicenter epidemiological study was conducted in 31 Spanish facilities by means of the Platform for Multicenter Studies of the Spanish Association of Urology. Recruitment was opened from May 1st, 2017 to April 30th, 2018. The original database was exported directly from the electronic Data Collection Logbook on December 15th, 2018, with a total of 404 cases registered (402 valid cases after depuration). Statistical analysis was performed using IBM SPSS software V 23 and EPIDAT V 3.4. RESULTS: The incidence adjusted to Spanish population from raw data was 3.27 cases per 100.000 inhabitants per year (2.93 - 3.61 95% CI) and 3,3 cases per 100.000 inhabitants per year (2.96-3.66 95%CI) when adjusted to European population by age. The mean age at diagnosis was 70 years, and 77% of patients were male. Thirty-four percent of patients had an incidental diagnosis. Tumors were most commonly located in the pyelocalyceal system (54%), followed by the distal ureter (22%). Prior ureteroscopy was performed in 114 patients: this technique modified the subsequent treatment indication in 58% of cases. Radical nephroureterectomy was performed in 311 patients. Kidney-sparing surgery was the elected treatment in 76 patients (20%). Complications were found in 69% of cases, most of them classified as Clavien 1 and 2 (86% of all complications). Postoperative mortality rate was 1.7%. CONCLUSIONS: UTUC adjusted incidence rate in Spain is 3.27 and 3.3 in Europe. Prior URS modified the treatment indication in 18% of patients. We found a 69% complication rate and a 1.7% mortality rate

Incidence of upper tract urothelial carcinoma in Spain. / Incidencia del carcinoma transicional del tracto urinario superior en España.

INTRODUCTION AND OBJECTIVES: The incidence of upper urinary tract tumors is currently unknown. The aim of this study is to determine the real incidence of upper tract urothelial carcinoma (UTUC) in Spain. MATERIAL AND METHODS: A descriptive, prospective and multicenter epidemiological study was conducted in 31 Spanish facilities by means of the Platform for Multicenter Studies of the Spanish Association of Urology. Recruitment was opened from May 1st, 2017 to April 30th, 2018. The original database was exported directly from the electronic Data Collection Logbook on December 15th, 2018, with a total of 404 cases registered (402 valid cases after depuration). Statistical analysis was performed using IBM SPSS software v 23 and EPIDAT v 3.4. RESULTS: The incidence adjusted to Spanish population from raw data was 3.27 cases per 100.000 inhabitants per year (2.93 - 3.61 95% CI) and 3,3 cases per 100.000 inhabitants per year (2.96-3.66 95%CI) when adjusted to European population by age. The mean age at diagnosis was 70 years, and 77% of patients were male. Thirty-four percent of patients had an incidental diagnosis. Tumors were most commonly located in the pyelocalyceal system (54%), followed by the distal ureter (22%). Prior ureteroscopy was performed in 114 patients: this technique modified the subsequent treatment indication in 58% of cases. Radical nephroureterectomy was performed in 311 patients. Kidney-sparing surgery was the elected treatment in 76 patients (20%). Complications were found in 69% of cases, most of them classified as Clavien 1 and 2 (86% of all complications). Postoperative mortality rate was 1.7%. CONCLUSIONS: UTUC adjusted incidence rate in Spain is 3.27 and 3.3 in Europe. Prior URS modified the treatment indication in 18% of patients. We found a 69% complication rate and a 1.7% mortality rate.

Fulguración ambulatoria con láser Holmium: Un procedimiento seguro para el tratamiento de la recidiva del carcinoma vesical no músculo infiltrante / Outpatient Holmium laser fulguration: A safe procedure for treatment of recurrence of nonmuscle invasive bladder cancer

Introducción y objetivo: Los tumores vesicales no musculo-invasivos presentan una elevada tasa de recurrencias y una baja tasa de progresión. El objetivo del estudio es evaluar la efectividad, seguridad y factibilidad de la fulguración con láser Holmium en régimen ambulatorio en tumores seleccionados. Material y método: Estudio prospectivo, longitudinal, de cohortes (enero de 2009 hasta diciembre de 2016). Se realizaron 79 procedimientos de fulguración con láser Holmium + instilación posterior de MMC en régimen ambulatorio en 59 pacientes con historia de neoplasia vesical de bajo riesgo y recidivas papilares de pequeño tamaño. Se realiza un análisis descriptivo de los datos y se analiza el tiempo libre de recidiva mediante curvas de Kaplan-Meier. Resultados: Todos los procedimientos se completaron en el día y sólo un paciente precisó ingreso posterior por hematuria. El 87.2% de los pacientes presentó dolor con EVA ≤ 3. Se objetivó recidiva tras el 49.4% de los procedimientos (27.3% a los 12 meses). La mediana de seguimiento fue de 17 meses (rango 2-65). La aparición de recidiva fue significativamente más precoz tras la segunda fulguración que tras la primera (mediana: 10 meses vs 56 meses). Conclusiones: La fulguración con láser Holmium + instilación posterior de MMC en régimen ambulatorio es una alternativa segura y factible a la RTUv en pacientes con tumores seleccionados. Probablemente sea recomendable realizar una RTUv en los pacientes con recidiva tras fulguración, dado que posiblemente el riesgo de progresión en estos pacientes es superior

Background and Objective: Nonmuscle invasive bladder cancer has a high recurrence rate and a low progression rate. The aim of this study was to assess the effectiveness, safety and feasibility of Holmium laser fulguration in an outpatient regimen for selected tumours. Material and Method: A prospective, longitudinal cohort study was conducted between January 2009 and December 2016. Seventy-nine Holmium laser fulguration procedures with subsequent instillation of mitomycin C were performed in an outpatient regimen on 59 patients with a history of low-risk bladder cancer and recurrence of small papillary tumours. We performed a descriptive data analysis and analysed the relapse-free time using Kaplan-Meier curves. Results: All procedures were completed in one day, and only one patient required subsequent hospitalisation due to haematuria. Some 87.2% of the patients presented pain with a visual analogue score ≤3. Recurrence occurred after 49.4% of the procedures (27.3% at 12 months). The median follow-up time was 17 months (range, 2-65). The onset of recurrence was significantly earlier after the second fulguration than after the first (median, 10 months vs. 56 months). Conclusions: Holmium laser fulguration and subsequent mitomycin C instillation in an outpatient regimen is a safe and feasible alternative to transurethral resection of bladder tumours in selected patients. Transurethral resection of the bladder tumour is recommended for patients with recurrence after fulguration, given the possibly higher risk of progression in these patients

Seguimiento a largo plazo del cabestrillo AdVance(R)/AdVanceXP(R). ¿Qué piensa el cirujano?, ¿qué piensa el paciente? / Long-term follow-up of the AdVance(R)/AdVanceXP(R) sling. What are the surgeons' impressions? What are the patients'?

Objetivos: Analizar la seguridad, la eficacia y la calidad de vida del paciente con incontinencia urinaria de esfuerzo masculina tras una prostatectomía radical, tratados con el cabestrillo AdVance(R) y AdvanceXP(R). Pacientes y método: Se han incluido en el estudio 92 pacientes con incontinencia urinaria de esfuerzo tras una prostatectomía radical tratados mediante cabestrillo AdVance(R) y AdVanceXP(R) entre mayo de 2008 y diciembre de 2015. Se realizó en todos los casos test de reposición perineal con coaptación esfinteriana ≥ 1,5cm. Se definió incontinencia urinaria de esfuerzo leve como el uso de 1-2 absorbentes/24 h; moderada: 3-5 absorbentes/24 h, y grave más de 5 absorbentes/24 h. Como curación se definió la ausencia total de uso de absorbentes, mejoría cuando la reducción fue mayor del 50% en el número de estos y fracaso cuando la reducción fue menor del 50%, no se obtuvo mejoría o se produjo un empeoramiento de la incontinencia. Se realizaron controles a los 3, 12 y 36 meses tras la cirugía. El índice de calidad de vida utilizado fue el International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). Las complicaciones se reflejaron según la clasificación de Clavien-Dindo. Resultados: El grado de incontinencia preoperatoria fue de tipo leve en el 23,9%, moderada en el 67,4% y grave en el 8,7%. El uso medio de absorbentes preoperatorio fue de 3,1 (rango 1-6, IC 95%). La puntuación media preoperatoria del test ICIQ-SF fue de 16,5 (15-20). La coaptación esfinteriana ≥ 1,5cm mediante el test de reposicionamiento perineal estaba presente en 87 pacientes (94,6%). El seguimiento medio desde la inserción del cabestrillo fue de 42,1 meses. El porcentaje de pacientes curados a los 3 meses fue del 89,1%, a los 12 meses del 70,7% y a los 36 meses del 70,4%. La puntuación del ICQ-SF a los 3, 12 y 36 meses mostró una mejoría significativa (p < 0,001) respecto a la puntuación preoperatoria. Conclusiones: Los sistemas Advance(R) y AdvanceXP(R) se muestran eficaces en el tiempo en cuanto a la continencia urinaria y la satisfacción del paciente

Objectives: To analyse the safety, efficacy and quality of life of patients with male stress urinary incontinence after radical prostatectomy treated with the AdVance(R) and AdvanceXP(R) slings. Patients and method: The study included 92 patients with stress urinary incontinence after radical prostatectomy treated with the AdVanc(R) and AdVanceXP(R) sling between May 2008 and December 2015. A perineal repositioning test was performed in all cases with sphincter coaptation of ≥ 1.5 cm. Mild stress urinary incontinence was defined as the use of 1-2 absorbers/24 h; moderate was defined as 3-5 absorbers/24 h; and severe was defined as more than 5 absorbers/24 h. Healing was defined as the total absence of using pads; improvement was defined as a reduction > 50% in the number of pads; and failure was defined as a reduction < 50, no improvement or worsened incontinence. Check-ups were conducted at 3, 12 and 36 months after the surgery. We employed the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) for the quality of life index. The complications are listed according to the Clavien-Dindo classification. Results: The degree of preoperative incontinence was mild in 23.9%, moderate in 67.4% and severe in 8.7% of the patients. The mean use of preoperative pads was 3.1 (range 1-6, 95% CI). The mean preoperative ICIQ-SF score was 16.5 (15-20). Sphincter coaptation ≥ 1.5cm using the perineal repositioning test was present in 87 patients (94.6%). The mean follow-up from insertion of the sling was 42.1 months. Some 89.1% of the patients were healed at 3 months, 70.7% were healed at 12 months, and 70.4% were healed at 36 months. The ICIQ-SF score at 3, 12 and 36 months showed significant improvement (P < .001) compared with the preoperative score. Conclusions: The Advance(R) and AdvanceXP(R) system are effective over time in terms of urinary continence and patient satisfaction

Outpatient Holmium laser fulguration: A safe procedure for treatment of recurrence of nonmuscle invasive bladder cancer. / Fulguración ambulatoria con láser Holmium: Un procedimiento seguro para el tratamiento de la recidiva del carcinoma vesical no músculo infiltrante.

BACKGROUND AND OBJECTIVE: Nonmuscle invasive bladder cancer has a high recurrence rate and a low progression rate. The aim of this study was to assess the effectiveness, safety and feasibility of Holmium laser fulguration in an outpatient regimen for selected tumours. MATERIAL AND METHOD: A prospective, longitudinal cohort study was conducted between January 2009 and December 2016. Seventy-nine Holmium laser fulguration procedures with subsequent instillation of mitomycin C were performed in an outpatient regimen on 59 patients with a history of low-risk bladder cancer and recurrence of small papillary tumours. We performed a descriptive data analysis and analysed the relapse-free time using Kaplan-Meier curves. RESULTS: All procedures were completed in one day, and only one patient required subsequent hospitalisation due to haematuria. Some 87.2% of the patients presented pain with a visual analogue score ≤3. Recurrence occurred after 49.4% of the procedures (27.3% at 12 months). The median follow-up time was 17 months (range, 2-65). The onset of recurrence was significantly earlier after the second fulguration than after the first (median, 10 months vs. 56 months). CONCLUSIONS: Holmium laser fulguration and subsequent mitomycin C instillation in an outpatient regimen is a safe and feasible alternative to transurethral resection of bladder tumours in selected patients. Transurethral resection of the bladder tumour is recommended for patients with recurrence after fulguration, given the possibly higher risk of progression in these patients.

Long-term follow-up of the AdVance®/AdVanceXP® sling. What are the surgeons' impressions? What are the patients'? / Seguimiento a largo plazo del cabestrillo AdVance®/AdVanceXP®. ¿Qué piensa el cirujano?, ¿qué piensa el paciente?

OBJECTIVES: To analyse the safety, efficacy and quality of life of patients with male stress urinary incontinence after radical prostatectomy treated with the AdVance® and AdvanceXP® slings. PATIENTS AND METHOD: The study included 92 patients with stress urinary incontinence after radical prostatectomy treated with the AdVance® and AdVanceXP® sling between May 2008 and December 2015. A perineal repositioning test was performed in all cases with sphincter coaptation of≥1.5cm. Mild stress urinary incontinence was defined as the use of 1-2 absorbers/24h; moderate was defined as 3-5 absorbers/24h; and severe was defined as more than 5 absorbers/24h. Healing was defined as the total absence of using pads; improvement was defined as a reduction>50% in the number of pads; and failure was defined as a reduction<50, no improvement or worsened incontinence. Check-ups were conducted at 3, 12 and 36 months after the surgery. We employed the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) for the quality of life index. The complications are listed according to the Clavien-Dindo classification. RESULTS: The degree of preoperative incontinence was mild in 23.9%, moderate in 67.4% and severe in 8.7% of the patients. The mean use of preoperative pads was 3.1 (range 1-6, 95% CI). The mean preoperative ICIQ-SF score was 16.5 (15-20). Sphincter coaptation≥1.5cm using the perineal repositioning test was present in 87 patients (94.6%). The mean follow-up from insertion of the sling was 42.1 months. Some 89.1% of the patients were healed at 3 months, 70.7% were healed at 12 months, and 70.4% were healed at 36 months. The ICIQ-SF score at 3, 12 and 36 months showed significant improvement (P<.001) compared with the preoperative score. CONCLUSIONS: The Advance® and AdvanceXP® system are effective over time in terms of urinary continence and patient satisfaction.

[Use of statistical analysis in original articles in "Actas Urológicas Españolas." Accessibility for the reader]. / Uso de los análisis estadísticos en los artículos originales de Actas Urológicas Españolas. Accesibilidad para el lector.

OBJECTIVES: To describe the use of statistical methods employed in original articles published in Actas Urológicas Españolas as the first step to quantify the accessability for the readers. METHODS: Observational, retrospective, descriptive and transversal study to analize all the original articles published in Actas Urológicas Españolas during the year 2000. Once the anectotic cases were excluded, 55 original studies were selected. In each article it was minuciously reviewed the methods and results sections, tables and figures included, to identify the statistical analysis used and to classify them into 18 categories with three accessability levels as Emerson and Colditz and Mora y cols, previously reported: descriptive statistics, bivariables analysis and complex analysis. A randomized sample of the originals were reviewed again by the same investigator three months later to evaluate the criteria liability. The accessability was defined as a) article dependent (rate of originals that readers with different statistical knowledge are able to understand) and b) analysis dependent (rate of statistical methods respect to the total performed overall the articles that readers are able to understand). RESULTS: Our major findings are that the more frequently used technics are descriptive analysis (39.3%), bivariable tables (12.1%), survival analysis (10%), t Student and z tests (6%), and nonparametric tests (8.6%). The accessability for a reader which statistical konowledge includes bivariable methods is 63.6% (IC 95% 49%-76%) and 79% (IC 95% 71%-85), article and analysis dependent respectively, rates that are similar to the reported for biomedical journals in our country. CONCLUSIONS: A great percentage of original articles in Actas Urológicas Españolas includes complex analysis. It could be good that readers were able to increase our statistical and methodological knowledge to perform a critical approach to our publication.

Uso de los análisis estadísticos en los artículos originales de Actas Urológicas Españolas.Accesibilidad para el lector / Use of statistical analysis in original articles published in Actas Urológicas Españolas: accessibility for the reader

OBJETIVOS: Descripción de los tipos de análisis estadísticos realizados en los trabajos de la Sección "Originales" de Actas Urológicas Españolas, cuantificando la accesibilidad estadística para el lector. MATERIAL Y MÉTODO: Estudio observacional, retrospectivo, descriptivo y transversal, analizando todos los Originales de Actas Urológicas Españolas publicados consecutivamente durante el año 2000 (muestreo aleatorio de conveniencia). Se excluyeron revisiones de casos anecdóticos, recogiéndose 55 originales. Fueron estudiadas detalladamente las secciones de Material y Método y Resultados, identificando los análisis efectuados para clasificarlos en 18 categorías jerárquicas con tres niveles de accesibilidad (Emerson-Colditz): estadística descriptiva, análisis bivariables y análisis complejos incluidos los multivariables. La concordancia intraobservador (fiabilidad de los criterios) fue evaluada mediante una nueva revisión de una muestra aleatoria de los originales seleccionados. La accesibilidad se definió: a) artículo dependiente (proporción de artículos accesibles para lectores con diferentes niveles de conocimiento estadístico) y b) análisis dependiente (proporción del total de técnicas estadísticas realizadas en todos los originales y que son accesibles a dichos lectores). RESULTADOS: Categorías más frecuentes: estadística descriptiva (39,3 por ciento), tablas bivariables (12,1 por ciento), análisis de supervivencia (10 por ciento), test t de Student y pruebas z (8,6 por ciento) y tests no paramétricos (8,6 por ciento). Globalmente, el 78,6 por ciento de los análisis estadísticos y el 63,6 por ciento de los artículos fueron accesibles para un lector con conocimientos básicos (análisis bivariables), cifras similares a las de otras revistas biomédicas. CONCLUSIONES: Un porcentaje considerable de los artículos originales de Actas Urológicas Españolas incorpora actualmente análisis complejos en su desarrollo. Parece así aconsejable que los lectores profundicemos en nuestros conocimientos estadísticos (AU)

OBJETIVES: To describe the use of statistical methods employed in original articles published in Actas Urológicas Españolas as the first step to cuantify the accesibility for the readers. METHODS: Observational, retrospective, descriptive and transversal study to analize all the original articles published in Actas Urológicas Españolas during the year 2000. Once the anectotic cases were excluded, 55 original studies were selected. In each article it was minuciously reviewed the methods and results sections, tables and figures included, to identify the statistical analisys used and to clasify them into 18 cathegories with three accesibilty levels as Emerson and Colditz and Mora y cols. previosly reported: descriptive statistics, bivariables analysis and complex analysis. A randomized sample of the originals were reviewed again by the same investigator three months later to evaluate the criteria fiability. The accesibility was defined as a) article dependent (rate of originals that readers with different statistical knowledge are able to understand) and b) analisys dependent (rate of statistical methods respect to the total performed overall the articles that readers are able to understand). RESULTS: Our major findings are that the more frecuently used technics are descriptive analysis (39.3%), bivariable tables (12.1%), survival analysis (10%), t Student and z tests (6%), and nonparametric tests (8.6%). The accesibility for a reader which statistical konowledge includes bivariable methods is 63.6% (IC 95% 49%-76%) and 79% (IC 95% 71%-85), article and analysis dependent respectively, rates that are similar to the reported for biomedical journals in our country. CONCLUSIONS: A great percentaje of original articles in Actas Urológicas Españolas includes complex analysis. It could be good that readers were able to increase our statistical and methodological konwledge to perform a critical approach to our publication (AU)

[Extramedullary hematopoiesis, a simulator difficult to diagnose]. / Hematopoyesis extramedular, un simulador de difícil diagnóstico.

The extramodular hematopoiesis is the result of the bone marrow sever chronical hypofunction, being the genitourinary affection very unusual. We are presenting a singular case by its own clinicopathology consequences and exceptional incidence in context of a upper tract urothelial tumor.

Hematopoyesis extramedular, un simulador de difícil prognóstico / Extramedular hematopoyesis, a difficult diagnosis simulator

La hematopoyesis extramedular es el resultado de la hipofunción severa crónica de la médula ósea, siendo muy infrecuente la presentación en órganos del aparato génito-urinario. Presentamos un caso importante por sus implicaciones clínicopatológicas y rareza en el contexto de un tumor de urotelio alto superficial (AU)

Tumor renal neuroendocrino. Un caso de rara presentación. Revisión de la literatura / Neuroendocrine renal tumor, a case of exceptional presentation. Review of the literature

Los tumores renales neuroendocrinos son de presentación extremadamente rara. Presentamos un caso clínico y revisamos la literatura sobre esta patología (AU)

No disponible

[Experience with cadaver renal transplant with ex situ reconstructed arteries]. / Experiencia en el trasplante renal de cadáver con arterias reconstruidas ex situ.

OBJECTIVE: To review our experience with cadaveric kidney transplantation with ex situ reconstruction of damaged renal artery. METHODS: To obtain a minimum follow-up of 5 years, 20 cases treated from January 1989 to December 1994 were retrospectively reviewed. The control group comprised 73 patients that had received an "ideal" graft during the same period. Both groups were similar for all the variables that could influence graft outcome. RESULTS: Both groups showed similar results for incidence of NTA, rejection episodes, creatinine values, surgical complications or reoperations. However, a strong trend (25% of the cases) to develop renal artery stenosis was found (p = 0.052). These latter cases were diagnosed by the onset of arterial hypertension that was difficult to control and were treated conservatively by percutaneous angioplasty with good functional results in 100% of the cases, although 80% required more than one session. This complication, however, did not lead to graft failure. CONCLUSIONS: Renal grafts with arteries damaged during procurement or as a result of pathological changes, such as arteriorclerosis or aneurysm, are useful after bench reconstruction before transplantation. However, the greater trend to develop symptomatic arterial stenosis that has been observed makes it convenient to look for this complication routinely during follow-up. If diagnosed and treated early, it does not influence the graft outcome. The therapeutic approach is first by percutaneous transluminal angioplasty and if it fails, then by open surgery.

[Neuroendocrine renal tumor. An unusual case. Review of the literature]. / Tumor renal neuroendocrino. Un caso de rara presentación. Revisión de la literatura.

The neuroendocrine renal tumors are of extremely strange presentation. We present a review of the literature published on this pathology.

Tratamiento conservador del tumor testicular de células germinales / Conservative treatment of malignant germ cell tumors of the testis

El tumor de células germinales de testículo es la lesión neoplásica más frecuente en los varones de entre 15 y 35 años. Los resultados terapéuticos obtenidos gracias a la orquiectomía radical y, especialmente, a la poliquimioterapia neoadyuvante permiten obtener supervivencias libres de enfermedad en torno al 90 por ciento en el momento actual. Esta gran quimiosensibilidad está abriendo nuevas puertas a opciones terapéuticas alternativas, encaminadas a conservar la cantidad suficiente de parénquima que permita evitar los problemas derivados de la insuficiencia testicular. Tales alternativas quedan plenamente justificadas en los casos de tumores germinales bilaterales o de asiento en órgano único. En este artículo aportamos un caso de seminoma puro desarrollado en testículo único funcionante tratado mediante cirugía conservadora de parénquima. Asimismo, analizamos las indicaciones y resultados del manejo conservador del tumor primario basándonos en criterios de revisión bibliográfica metodológicamente estrictos, encaminados a ofrecer las mejores evidencias disponibles al respecto (AU)

[Experience with kidney transplantation with children as donors]. / Experiencia en trasplante renal con donantes infantiles.

OBJECTIVE: To analyze the results achieved with transplantation of children kidneys to adult recipients. METHODS: The results achieved with transplantation of children cadaver kidneys (< 15 years) from 1989 to 1994 over a follow-up period of at least 36 months were reviewed. Patients (n = 43) were stratified into group A (13 grafts from donors < or = 6 years), group B (30 grafts from donors > 6 years) and group C (control group), which comprised 73 patients who received grafts from donors of an ideal age during the same time period. All three groups were similar for variables considered to influence the results of transplantation, except for the higher incidence of hypotension in group B. RESULTS: The number of episodes of rejection was three-fold higher in group A than in the control group (p = 0.019). A higher incidence of surgical complications, principally vascular complications (arterial thrombosis, renal rotation), was found in group A versus the control group (p = 0.039). When the grafts transplanted en bloc from donors under 12 months were excluded from the analysis, the incidence of vascular or urological surgical complications in group A was not found to be higher than that of the control group. No difference was found for mean length of stay, renal function (creatininemia), graft or patient survival for the three groups. CONCLUSIONS: Grafts from donors more than 6 years old showed a similar behavior as those from donors of an ideal age. Furthermore, single kidneys from donors aged more than 12 months can be transplanted with excellent results. It is necessary to have a larger series to confirm and explain the high incidence of acute rejection in grafts from donors less than 6 years old.

Los injertos renales de donantes cadáver mayores de 60 años deben ser considerados subóptimos / Cadaver kidney grafts from donors over 60 should be considered suboptimal

Ante la escasez de órganos para trasplante una posible solución es la utilización de injertos procedentes de donantes añosos (mayores de 50 años). Revisamos nuestra experiencia en el periodo entre 1989-1994, para obtener un seguimiento mínimo de 36 meses. Para ello, comparamos tres grupos: donantes entre 50-60 años (N = 32), donantes mayores de 60 años (N = 25) y un control de edades "ideales" (N = 73). Los resultados han puesto de manifiesto que los donantes mayores de 60 años presentan, con respecto al control, una mayor incidencia de NTA (p = 0,032), una creatininemia significativamente mayor en todos los intervalos considerados y una supervivencia del injerto inferior en un 14 por ciento y un 40 por ciento a los 12 y 36 meses respectivamente (p = 0,0009). Los motivos de estas diferencias cabe atribuirlos a factores intrínsecos relacionados con los cambios que la edad y condiciones patológicas ejercen sobre estos órganos, ya que no se ha detectado una mayor incidencia de complicaciones inmunológicas o quirúrgica (AU)

[HLA compatibility and antigenic re-exposure. Impact on the clinical course of cadaver kidney transplantation]. / Compatibilidad HLA y reexposición antigénica. Influencia en la evolución del retrasplante renal de cadáver.

OBJECTIVES: A number of prediction factors on the outcome of cadaver renal transplants have been recognized, particularly the influence of recipient response to the first graft. However, the influence of HLA compatibility and of repeated recipient and donor antigen mismatches remain a controversy. The importance of the foregoing on the survival of the second renal graft is analyzed in this study. METHODS: The clinical records of 80 patients who had undergone a second cadaver renal transplantation from 1985 to 1995 at the Hospital 12 de Octubre (Madrid, Spain) were reviewed. Data on the recipient, donor and graft characteristics and outcome of the first and second transplants were collected for multivariate analysis of graft survival using the Cox regression method. The importance of the overall HLA compatibility and of each HLA locus, and the effect of antigenic re-exposure on the survival of the second renal graft were analyzed. RESULTS: The multivariate analysis showed a significant increase of the survival of the second graft when there were at least three compatible antigens between donor and recipient (p = 0.02). Compatibility of the HLA-A and DR loci appeared to improve the outcome, although the differences were not statistically significant. However, a significant improvement in the survival of the second cadaver renal allograft was found for repeated HLA mismatches between the recipient and donors (p = 0.006). CONCLUSIONS: Our data corroborate the benefits of assigning renal grafts according to the degree of HLA compatibility also for the second renal transplant. Furthermore, our data show that re-exposure to previous mismatched antigens need not be hazardous for the second renal transplant in the cyclosporine era.

[Conservative treatment of germ cell tumor of the testis]. / Tratamiento conservador del tumor testicular de células germinales.

Testis germ cell tumor is the most frequent cancer in men between 15 and 35 years old. The therapeutic results of radical orchiectomy and chemotherapy reaches 90% free disease survival al the present time. This great chemosensibility is opening new doors to alternative therapeutic options, directed to preserve the sufficient amount of tissue to avoid the problems derived from testicular insufficiency. Such alternatives are clearly beneficial in bilateral germinal tumors or in solitary testis. In this article we describe a case of seminoma developed in a solitary functional testis managed in a conservative approach: organ preserving surgery and surveillance. We analyzed the indications and international results of such approach based on the best evidences now available.

[Cadaver kidney grafts from donors over 60 years of age should be considered as suboptimal]. / Los injertos renales de donantes cadáver mayores de 60 años deben ser considerados subóptimos.

Considering the scarcity of organs for transplantation, one possible solution is the use of grafts from aged donors (over 50 years). We have reviewed our experience in the case of kidney transplantation considering the period from 1989-1994 in order to attain a minimum follow-up of 36 months. We compare three groups: donors aged between 50-60 years (n = 32), donors aged over 60 years (n = 25) and a control group formed by donors of "ideal" ages. The results show that kidneys from donors over 60 years evidence, as compared to the control group, a higher incidence of acute tubular necrosis (p = 0.032), significantly higher blood creatinine levels in all the intervals considered, and a graft survival which is 14% less at 12 months and 40% less at 36 months (p = 0.0009). These differences are most probably to be attributed to the changes caused in these organs by advancing age and by previous pathological situations, as we have not detected a higher incidence of immunologic or surgical complications.

[Impact of transplantectomy of the first graft on the clinical course of cadaver renal retransplantation]. / Influencia de la trasplantectomía del primer injerto en la evolución del retrasplante renal de cadáver.

PURPOSE: At the present time a number of prediction factors on the outcome of second cadaver renal transplants are known, in particular the influence of recipient response to the first graft. However, we do not know if retaining or removing the non-functioning organ has any repercussion on subsequent transplants. This is the object of the present study. MATERIAL AND METHODS: A retrospective study was carried out on the clinical records of 80 patients who had undergone a second cadaver renal transplant under CyA between 1985-1995 at Hospital 12 de Octubre. Data on the characteristics and outcome of the first and second transplants were collected, plus those concerning the recipient and donor. These variables were used to construct a multivariant analysis model of graft survival. The nephrectomy of the non-functioning graft was only carried out when absolutely necessary (n = 58). RESULTS: The multivariant analysis showed that the nephrectomy of the non functioning graft did not modify the risk of recipient sensitization or the probability of developing acute or chronic rejection of the second graft. However, it reduced the risk of losing this second graft at medium or long term significantly (p = 0.009). CONCLUSIONS: These data constitute the first solid argument in favor of elective nephrectomy in candidates for a second cadaver renal transplant. Nevertheless, a more thorough study should be carried out of the immunological mechanism involved before recommending this as a general procedure.