Use of a barbed suture for the urethro-vesical anastomosis during the learning curve of the endoscopic extraperitoneal radical prostatectomy.

OBJECTIVES: The performance of the urethrovesical anastomosis is one of the most difficult steps in urologic laparoscopy. Many different techniques have been developed to improve this step and, recently, new sutures such as the V-loc (R) barbed system have been created. In the present study we analyze the usefulness of this suture for diminishing the time employed for the anastomosis suture during the learning curve of laparoscopic radical prostatectomy. METHOD: We performed a prospective comparative study between two groups. The first group included the first 50 cases of a novel surgeon using this barbed suture, and we compared these procedures with 50 consecutives cases of an experienced surgeon. We compared preoperative parameters, surgical and suturing times, as well as drain and catheter duration, and hospital stay. RESULTS: We did not find statistically significant differences in any pre or postoperative parameters between both groups. Although surgical time was lower in the control group this difference was not statistically significant. The time used to perform the suture was lower in the study group, and we found significant differences between both groups. Neither drain nor bladder catheter times were different between groups. CONCLUSIONS: In the absence of prospective randomized trials comparing barbed or not barbed running sutures, our study shows that the use of the V-loc® system improves the times needed for the urethrovesical anastomosis during the learning curve of laparoscopic radical prostatectomy.

Uso de sutura antiretorno reabsorbible par la anastomosis uretrovesical durante la curva de aprendizaje de la prostatectomía radical endoscópica extraperitoneal / Use of a barbed suture for the urethro-vesical anastomosis during the learning curve of the endoscopic extraperitoneal radical prostatectomy

OBJETIVO: La anastomosis uretrovesical es un paso de elevada complejidad en la técnica laparoscópica. Existen múltiples técnicas para afrontar este paso, y recientemente hemos asistido al desarrollo de nuevas suturas como la sutura antirretorno V-Loc ®. Con el siguiente estudio valoramos la utilidad del uso de esta sutura para disminuir el tiempo invertido en realizar la anastomosis durante la curva de aprendizaje de la prostatectomía radical laparoscópica. MÉTODOS: Diseñamos un estudio prospectivo comparativo entre dos grupos, uno constituido por los primeros 50 casos de un cirujano novel mediante el uso de esta novedosa sutura antirretorno con 50 casos consecutivos de un cirujano experto. Se comparan los parámetros preoperatorios, los tiempos quirúrgicos y los empleados en realizar la sutura así como la permanencia de drenaje, sonda y tiempo de hospitalización. RESULTADOS: No se encontraron diferencias estadísticamente significativas en los parámetros preoperatorios entre ambos grupos. Si bien el tiempo empleado en la cirugía fue menor en el grupo control (166 minutos frente a 179 para el grupo estudio)esta diferencia no resultó estadísticamente significativa (p=0.1). El tiempo utilizado en realizar la anastomosis fue menor para el grupo en el que se utilizó la sutura V-Loc® (23.6 minutos frente a 36.1 minutos en le grupo control), y esta diferencia resultó estadísticamente significativa (p<0.001. Ni la permanencia de drenaje, ni de sonda ni el tiempo de ingreso difirió de forma estadísticamente significativa entre ambos grupos. CONCLUSIONES: A falta de estudios prospectivos randomizados comparando con una sutura continua, nuestro trabajo pone de manifiesto que la sutura continua antirretorno es una opción aceptable que consigue optimizar el tiempo empleado en la sutura de cirujanos en el inicio de su curva de aprendizaje (AU)

OBJECTIVES: The performance of the urethrovesical anastomosis is one of the most difficult steps in urologic laparoscopy. Many different techniques have been developed to improve this step and, recently, new sutures such as the V-loc (R) barbed system have been created. In the present study we analyze the usefulness of this suture for diminishing the time employed for the anastomosis suture during the learning curve of laparoscopic radical prostatectomy. METHOD: We performed a prospective comparative study between two groups. The first group included the first 50 cases of a novel surgeon using this barbed suture, and we compared these procedures with 50 consecutives cases of an experienced surgeon. We compared preoperative parameters, surgical and suturing times, as well as drain and catheter duration, and hospital stay. RESULTS: We did not find statistically significant differences in any pre or postoperative parameters between both groups. Although surgical time was lower in the control group this difference was not statistically significant. The time used to perform the suture was lower in the study group, and we found significant differences between both groups. Neither drain nor bladder catheter times were different between groups. CONCLUSIONS: In the absence of prospective randomized trials comparing barbed or not barbed running sutures, our study shows that the use of the V-loc® system improves the times needed for the urethrovesical anastomosis during the learning curve of laparoscopic radical prostatectomy (AU)

[Green light laser efficacy in patients with prostatic hyperplasia treatment with 5-alpha reductase inhibitors]. / Eficacia de la fotovaporización prostática con láser verde en el tratamiento de la hiperplasia prostática en pacientes en tratamiento con inhibidores de la 5-alfa-reductasa.

INTRODUCTION: High prevalence of BPH and gradual ageing of the population, combined with the existence of effective medical treatments for this condition, has led to an increasing use of surgery in patients on long-term treatment with 5-alpha reductase inhibitors (5-ARIs). Initially, patients treated with 5-ARIs were not considered good candidates for photoselective vaporization of the prostate with green laser. OBJECTIVE: To assess, using a retrospective study based on our experience, wheter long-term treatment (longer than 6 months) with 5-alpha reductase inhibitors decreases effectiveness of photoselective vaporization of the prostate with green light laser in BPH. MATERIALS AND METHODS: From September 2005 to January 2008, 102 patients underwent photoselective vaporization of the prostate with green light laser. Of these, 25 patients (24.5%) had been treated with 5-ARIs for at least 6 months, and the remaining 77 patients (75.5%) were used as controls. A retrospective study was conducted to compare the pre- and postoperative clinical and functional parameters of patients with and without prior 5-RAI therapy. RESULTS: No statistically significant differences were found between the treated and control groups in preoperative prostatic volume (50 mL vs 49 mL), IPSS (17.6 vs 17.8), postvoiding residue (16% vs 18%), or PSA (1.4 ng/mL vs 2.2 ng/mL). Similarly, while differences were seen in energy spread (180 kJ vs 175 kJ for the treated and control groups respectively) and operating time (63 min vs 57 min), these were not statistically significant. No between-group differences were found either in clinical or flow rate parameters one month after surgery (IPSS 13.8 vs 14 and Qmax 13.9 mL/s vs 14.5 nL/s in the treated and control groups respectively). Surgeons reported a better visualization of the endoscopic field that was attributed to less bleeding during the procedure. CONCLUSIONS: Our results show no statistically significant differences in peroperative and preoperative parameters between patients with and without treatment with 5-alpha reductase inhibitors. We therefore think that photoselective vaporization of the prostate with green light laser is a safe and effective technique in patients treated with 5-ARIs.

Eficacia de la fotovaporización prostática con láser verde en el tratamiento de la hiperplasia prostática en pacientes en tratamiento con inhibidores de la 5-alfa-reductasa / Green light laser efficacy in patients with prostatic hyperplasia treatment with 5-alpha reductase inhibitors

Introducción: El progresivo envejecimiento de la población y la elevada prevalencia de la hiperplasia benigna prostática (HBP), unidos a la existencia de tratamientos médicos efectivos para esta afección, produce que cada vez más indiquemos la cirugía en pacientes tratados a largo plazo con inhibidores de la 5-alfa-reductasa (5ARI). En un principio, los pacientes tratados con 5ARI no se consideraban buenos candidatos para la fotovaporización prostática con láser verde. Objetivo: En el siguiente trabajo, mediante un estudio retrospectivo basado en nuestra experiencia, pretendemos dilucidar si el tratamiento a largo plazo (mas de 6 meses) con inhibidores de la 5ARI reduce la eficacia del tratamiento con láser verde en pacientes afectados de HBP. Material y métodos: Entre septiembre de 2005 y enero de 2008 hemos tratado a 102 pacientes mediante fotovaporización prostática con láser verde, de los que 25 (24,5%) se encontraban en tratamiento con 5ARI durante al menos 6 meses; los otros 77 (75,5%) pacientes formaron el grupo control. Realizamos un estudio retrospectivo en el que comparamos los parámetros clínicos y funcionales pre y postoperatorios de los pacientes tratados con 5ARI respecto a los que no lo estaban. Resultados: No encontramos diferencias estadísticamente significativas en cuanto a volumen prostático (50 cc y 49 cc), IPSS (17,6 y 17,8), residuo posmiccional (16% y 18%) o antígeno prostático específico (PSA) (1,4 ng/ml y 2,2 ng/ml) preoperatorios entre los grupos tratamiento y control, respectivamente. Del mismo modo, si bien existieron diferenciasen cuanto a la energía usada (180 kJ y 175 kJ) y el tiempo quirúrgico empleado (63 min y 57 min), ambas fueron más elevadas en el grupo tratado con 5ARI, estas diferencias no resultaron significativas estadísticamente. Tampoco encontramos diferencias en los parámetros clínicos (IPSS 13,8 y 14 al primer mes) ni flujométricos (Qmáx 13,9 ml/s y 14,5ml/s en la revisión al primer mes) entre pacientes tratados y no tratados. Subjetivamente, se apreció una mejor visualización del campo endoscópico atribuida a un menor sangrado durante la intervención. Conclusiones: Nuestros resultados no demuestran diferencias estadísticamente significativas entre pacientes con y sin tratamiento con inhibidores de la 5ARI en cuanto a parámetros intra y preoperatorios, por lo que pensamos que este tratamiento no disminuye la eficacia de la fotovaporización prostática con láser verde (AU)

Introduction: High prevalence of BPH and gradual ageing of the population, combined with the existence of effective medical treatments for this condition, has led to an increasing use of surgery in patients on long-term treatment with 5-alpha reductase inhibitors (5-ARIs). Initially, patients treated with 5-ARIs were not considered good candidates for photoselective vaporization of the prostate with green laser. Objective: To assess, using a retrospective study based on our experience, wheter long-term treatment (longer than 6 months) with 5-alpha reductase inhibitors decreases effectiveness of photoselective vaporization of the prostate with green light laser in BPH. Materials and methods: From September 2005 to January 2008, 102 patients underwent photoselective vaporization of the prostate with green light laser. Of these, 25 patients (24.5%) had been treated with 5-ARIs for at least 6 months, and the remaining 77 patients (75.5%) were used as controls. A retrospective study was conducted to compare the pre and postoperative clinical and functional parameters of patients with and without prior 5-RAI therapy. Results: No statistically significant differences were found between the treated and control groups in preoperative prostatic volume (50 mL vs 49 mL), IPSS (17.6 vs 17.8), postvoiding residue (16% vs 18%), or PSA (1.4 ng/mL vs 2.2 ng/mL). Similarly, while differences were seen in energy spread (180 kJ vs 175 kJ for the treated and control groups respectively) and operating time (63 min vs 57 min), these were not statistically significant. No between group differences were found either in clinical or flow rate parameters one month after surgery (IPSS 13.8 vs 14 and Qmax 13.9mL/s vs 14.5 nL/s in the treated and control groups respectively). Surgeons reported a better visualization of the endoscopic field that was attributed to less bleeding during the procedure. Conclusions: Our results show no statistically significant differences in peroperative and preoperative parameters between patients with and without treatment with 5-alphareductase inhibitors. We therefore think that photoselective vaporization of the prostate with green light laser is a safe and effective technique in patients treated with 5-ARIs (AU)

[Surgical treatment of renal tumours with venous extension]. / Tratamiento quirúrgico del tumor renal con extensión venosa.

OBJECTIVES: Renal carcinoma accounts for 3% of malignant urological tumors. The existence of tumor thrombus in the venous system is more infrequent, and, despite it was believed until recently its presence worsened the diagnosis of the disease, currently it is accepted that in the absence of metastatic or lymph node disease, surgery is the treatment of choice and potentially curative for these tumors. METHODS: Between June 2003 and November 2007 eight patients with renal disease and venous thrombus underwent surgery; two of them wereT3c and six T3b; in five of them surgery was carried out in association with the heart surgery team in our centre. Three of them underwent surgery with extracorporeal circulation. Mean patient age was 56 years. RESULTS: Tumor thrombus was grade I in one patient, grade II in 4 patients, grade III in one patient, and grade IV in two patients. In all patients with tumor grade > or = III, as well as two with grade II, surgery was performed in conjunction with the department of heart surgery. The operation with extracorporeal circulation, deep hypothermia, cardioplegia, and antegrade and retrograde brain perfusion was performed in grades III and IV. Midline incision was performed, with or without sternotomy, depending on the level of the thrombus. Hemorrhage was the most frequent perioperative complication. DISCUSSION: It is essential to know the exact level of the cephalic extreme of the tumor thrombus to design the proper surgical strategy; for that, we can use MRI, CT scan or ultrasound. Therefore, surgical approach, multidisciplinary cooperation and use of extracorporeal circulation will depend on such extension of the thrombus and concurrent factors of the patient. A good surgical strategy, as well as early surgery may avoid the use of venous filters preoperatively. CONCLUSIONS: Venous wall invasion seems to be related with a greater incidence of lymph node disease, but these patients are candidates to intention-to-cure radical surgery. Thrombus level is not a prognostic factor per se, but it should be taken into consideration for surgical planning. After radical surgery survival rates achieved are similar to those of tumors without venous thrombus.

[Penile cellulitis after oral sex]. / Celulitis de pene tras sexo oral.

OBJECTIVE: Nowadays, there is the high prevalence of sexual intercourse including oral sex, which implies some peculiarities in the infections, balanitis and ceIlulitis they may produce. METHODS: We report two new cases of penile cellulitis treated in the urology department in our hospital. DISCUSSION: We review the indications of prophylaxis, and the medical and surgical treatment both referred in the literature and carried out in our patients. CONCLUSIONS: When dealing with balanitis and penile cellulitis, the history should include explicit references to the practice of oral sex. Early medical or surgical treatment has a favourable influence on the evolution of the lesions.

Celulitis de pene tras sexo oral / Penile cellulitis after oral sex

Objetivo: En la actualidad la prevalencia de relaciones sexuales en las que se incluye sexo oral es elevada, esto conlleva una serie de peculiaridades en las infecciones, balanopostitis y celulitis, que pueden producirse en relación con estas prácticas. Métodos: Aportamos 2 nuevos casos de celulitis peneana tratados en el Servicio de Urología de nuestro hospital. Discusión: Revisamos las indicaciones de profilaxis, tratamiento médico y quirúrgico referidas en la literatura y practicadas en nuestros pacientes. Conclusiones: La anamnesis ante balanopostitis y celulitis peneanas, debe incluir referencias explícitas a la práctica de sexo oral. La precocidad en el tratamiento, tanto médico como quirúrgico, influye favorablemente en la evolución de las lesiones (AU)

Objective: Nowadays, there is the high prevalence of sexual intercourse including oral sex, which implies some peculiarities in the infections, balanitis and cellulitis they may produce. Methods: We report two new cases of penile cellulitis treated in the urology department in our hospital. Discussion: We review the indications of prophylaxis, and the medical and surgical treatment both referred in the literature and carried out in our patients. Conclusions: When dealing with balanitis and penile cellulitis, the history should include explicit references to the practice of oral sex. Early medical or surgical treatment has a favourable influence on the evolution of the lesions (AU)

Ureterohidronefrosis congénita y embarazo / Congenital ureterohydronephrosis and pregnancy

No disponible

Detección sérica de PSA mediante un test rápido (SD Bioline PSA) / Fast tenst serum PSA determination (Sd Bioline PSA)

OBJETIVO: En los últimos años han aparecido numerosos test semicuantitativos para la determinación de PSA, basados en la inmunocromatografía, realizados sobre suero o plasma. Presentamos nuestra experiencia en el uso del test SD BIOLINE PSA, que se realiza en plasma o suero para determinación cualitativa de PSA de forma rápida, y que usa como punto de corte 3 ng/mL. MÉTODO: Se analizaron un total de 54 pacientes que estuvieron ingresados en nuestra sala de hospitalización. Se extrajeron dos muestras de sangre a todos los paciente una para determinación cuantitativa de PSA en el laboratorio de nuestro hospital y otra para la determinación cualitativa con el test SD BIOLINE PSA, posteriormente comparamos ambos resultados. Dos urólogos interpretaron de forma independiente el test sin conocer los valores de PSA obtenidos en laboratorio. Para calcular el efecto del tiempo de lectura del test se leyó a los 15, 20 y 25 minutos. Los resultados fueron clasificados en una tabla de contingencia clásica, lo cual nos permitió calcular la sensibilidad y especificidad del test, así como el valor predictivo positivo y el valor predictivo negativo. RESULTADOS: La edad media fue de 71.1 años (rango de 43-96 años). De los 54 pacientes sometidos al estudio 26 (48.14%) tuvieron un PSA > 3 ng/mL (media 18,5 ng/mL, rango 3.9-66.9 ng/mL) y 28 (51.86%) presentaron un PSA < 3 ng/mL (media 0.8 ng/mL, rango 0-2.9 ng/mL), en el análisis ordinario. Los resultados en cada intervalo y por observador fueron los siguientes: 15 minutos: Observador 1: sensibilidad(S) 76.92%, especificidad (E) 100%, valor predictivo positivo (VPP) 100%, valor predictivo negativo (VPN) 82.35%; Observador 2: S 76.92%, E 100%, VPP 100%, VPN 82.35. 20 minutos: Observador 1: S 100%, E 93.33%, VPP 92.30%, VPN 100%; Observador2: S 100%, E 93.33%, VPP 92.30%, VPN 100%. 25 minutos: Observador 1: S 100%, E 85.71%, VPP 86.66%, VPN 100%; Observador 2: S 92.30%, E 92.85%, VPP 92.30%, VPN 92.85%. CONCLUSIONES: El test SDBioline cumple las características necesarias para ser utilizado como prueba de detección del PSA, es simple, rápido, barato, poco invasivo y presenta una buena efectividad (AU)

OBJECTIVES: Over the last years numerous semiquantitative PSA tests have appeared , based on serum or plasma immunochromatography. We present our experience using the SD BIOLINE PSA test, which is performed with plasma or serum for fast qualitative determination of PSA; the cut point is 3 ng/ml. METHODS: We analized 54 patients who were admitted in our hospital ward. Two blood samples were obtained from every patient, one for cuantitative PSA determination at the hospital laboratory and the other one for qualitative determination with the SD BIOLINE PSA test, and the results were compared.. Two urologists independently interpreted the test without knowing the PSA values from the lab. To calculate the effect of test reading time, readings were performed at 15, 20 and 25 minutes. Results were classified in a classic contingency table, which enabled us to calculate sensitivity and specificity of the test, as well as positive and negative predictive values. RESULTS: Mean age was 71.1 years (range 43-96 yr). From 54 patients in the study 26 (48.14%) had a PSA > 3 ng/ml (Mean 18.5 ng/ml, range 3.9-66.9 ng/ml) and 28(51.86%) PSA < 3 ng/mL (mean 0.8 ng/mL, range 0-2.9 ng/mL), in the conventional test. Results for each interval and observer were: 15 min: Observer 1: Sensitivity (S) 76,92%, specificity (E) 100%, positive predictive value (PPV) 100% , negative predictive value(NPV) 82.35%; Observer 2: S 76.92%, E 100% , PPV 100%, NPV 82.35%. 20 minutes: Observer 1: S 100%, E 93.33%, PPV 92.30%, NPV 100%; Observer 2: S 100%, E 93.33%, PPV 92.30% ,NPV 100%. 25 minutes: Observer 1: S 100% , E 85.71%, PPV 86.66%, NPV 100%; Observer 2: S 92.30%, E 92.85%, PPV 92.30%, NPV 92.85%. CONCLUSIONS: The SD Bioline PSA test complies with the characteristics required to be used as a test for prostate cancer detection, it is simple, fast, cheap, not much invasive, and has a good efficacy (AU)

Tratamiento quírúrgico de carcinoma renal con trombo y filtro en vena cava / Surgical treatment of the renal carcinoma with inferior vena cava thrombus and filter

Objetivo: La invasión vascular en forma de trombo tumoral sucede en un no desdeñable porcentaje de las neoplasias renales, la importancia de la extensión cefálica del trombo en el pronóstico es discutida actualmente pero en ausencia de metástasis a distancia, el tratamiento quirúrgico es mandatorio. Método: Presentamos el caso de un paciente de 56 años al que intervenimos en nuestro centro, portador de filtro en vena cava inferior mediante abordaje toraco-abdominal con circulación extracorpórea (CEC), hipotermia profunda (por debajo de los 18ºC) y retroperfusión cerebral. Resultados: Si bien tiempo atrás se pensaba que la presencia de trombo tumoral ensombrecía el pronóstico de estos pacientes, actualmente sabemos que con tratamiento quirúrgico, en casos seleccionados, se obtienen buenos resultados en términos de supervivencia y tiempo libre de enfermedad. Conclusión: Pensamos que el implante de filtros venosos, puede incrementar la complejidad de la cirugía (AU)

Objective: Vascular invasion in the form of tumour thrombus appears in a significant percentage of renal neoplasias. The importance of cephalic extension of the thrombus in prognosis is currently under discussion, but surgical treatment is mandatory in the absence of distant metastasis. Methods: We report the case of a 56-year-old male patient with a filter in the inferior vena cava, who underwent surgery in our department through a thoracoabdominal approach with extracorporeal circulation, deep hypothermia (below 18ºC) and cerebral retrograde perfusion. Results: Although in the past it was believed tumour thrombus worsened prognosis in these patients, currently we know that surgical treatment, in selected cases, gives good results in terms of survival and disease-free time. Conclusions: We think the implementation of venous filters may increase the complexity of surgery (AU)

[Urinary lithiasis secondary to medication in HIV+ patients receiving Indinavir]. / Litiasis medicamentosa en pacientes VIH+ en tratamiento con Indinavir.

OBJECTIVES: Therapy with protease inhibitors is commonly used in patients infected by human inmunodeficency virus (HIV). 20% of the administered dose is excreted by the kidney, and when alkaline urine is present, indinavir may crystallize forming stones and patients may experience renal colic due to this fact. METHODS: Between January 1998 and June 2005, 26 patients receiving antiretroviral treatment with protease inhibitors received care at our hospital because of renal colic or flank pain. All of them underwent physical examination, echography and urography as well as blood and urine analysis. Patients were treated ambulatory excepting those in whom oral analgesics were insufficient to control the pain. RESULTS: All patients had been treated with indinavir for longer than 12 months. They represented 4% of all patients treated with the recommended dose of Crivixan. Most of them presented flank pain, associated in most cases to microhaematuria. Five of them required hospitalization because of persistent pain in spite of endovenous analgesia. Imaging tests (echography and urography) showed functional delay of the kidney (2 cases), ureteral stasis (4 cases) and little lithiasic concretions of mild radiologic density (5 cases). Urinalysis revealed suggestive christaluria and alkaline pH. All patients required hidratation and analgesic treatment. In 3 patients indinavir dose was reduced, it was retired in another one, and 100 mg of rito-navir were added in another one. Unsuccesfuly ureteral cateterization was tried in one patient. All of them presented symptomatic improvement. CONCLUSIONS: We ought to know the capability of indinavir to form urolithiasis in HIV patients treated with protease inhibitors, although its use is decreasing along time. Prevalence of urolithiasis in these patients seems to be higher as length of treatment becomes longer. Metabolic alterations in urine have been proved in these patients, contributing to a higher incidence of lithiasis than in general population.

Litiasis medicamentosa en pacientes Vih+ eb tratamietno con Indinavir / Urinary lithiasis secondary to medication in HIV+patients receiving Indinavir

Objetivo: Los antirretrovirales inhibidores de la proteasa (IP) son fármacos utilizados en el tratamiento de pacientes afectos por el virus de la inmunodeficiencia humana (VIH). Un 20% de la dosis administrada se excreta por el riñón, que en presencia de orina alcalina puede precipitar formando cristales del propio fármaco susceptibles de provocar crisis renoureterales. Métodos: Entre enero del 1998 y junio de 2005 hemos atendido en nuestro centro a 26 pacientes con síntomas de urolitiasis y bajo el tratamiento con antirretrovirales IP. Todos ellos fueron sometidos a exploración física minuciosa, ecografía renoureteral y vesical, urografía intravenosa. Así mismo, se realizó análisis de sangre y anormales y sedimento de orina. Los pacientes fueron tratados ambulatoriamente, salvo aquellos en los que la analgesia con AINEs no fue suficiente para el control del cuadro álgico. Resultados: Todos los pacientes llevaban más de 12 meses de tratamiento con Indinavir. Los 26 pacientes con síntomas de nefrolitiasis representaban un 4% de los sujetos tratados con la dosis recomendada de Crivixan®. La mayoría presentaron dolor en fosa renal casi siempre asociado a microhematuria. De ellos, cinco pacientes requirieron ingreso en nuestra unidad por clínica no controlable de forma ambulatoria. Las pruebas diagnósticas (ecografía y/o UIV) revelaron retraso funcional del riñón (2 casos), ectasia de vía (8 casos) y pequeñas concreciones litiásicas de escasa o nula densidad cálcica (5 casos). El análisis urinario mostró cristaluria sugestiva y un pH alcalino. Todos requirieron tratamiento analgésico e hidratación. En tres casos se redujo la dosis de indinavir, en otro se retiró la medicación y en otro se añadieron 100 mgr de ritonavir. En un caso se intento cateterismo ureteral infructuosamente. La evolución fue satisfactoria en todos ellos. Conclusiones: Es preciso conocer la posibilidad de litiasis medicamentosa en pacientes HIV tratados con IP, si bien, afortunadamente, cada vez se emplean menos. La prevalencia de urolitiasis en los VIH + parece más elevada en función del tiempo de tratamiento con indinavir. Se han observado alteraciones metabólicas en la orina de estos pacientes que contribuyen a una mayor incidencia de litiasis que en la población general (AU)

Objectives: Therapy with protease inhibitors is commonly used in patients infected by human inmunodeficency virus (HIV). 20% of the administered dose is excreted by the kidney, and when alkaline urine is present , indinavir may crystallize forming stones and patients may experience renal colic due to this fact. Methods: Between January 1998 and June 2005, 26 patients receiving antiretroviral treatment with protease inhibitors received care at our hospital because of renal colic or flank pain. All of them underwent physical examination, echography and urography as well as blood and urine analysis. Patients were treated ambulatory excepting those in whom oral analgesics were insufficient to control the pain. Results: All patients had been treated with indinavir for longer than 12 months. They represented 4% of all patients treated with the recommended dose of Crivixan ®. Most of them presented flank pain, associated in most cases to microhaematuria. Five of them required hospitalization because of persistent pain in spite of endovenous analgesia. Imaging tests (echography and urography) showed functional delay of the kidney (2 cases), ureteral stasis (4 cases) and little lithiasic concretions of mild radiologic density (5 cases). Urinalysis revealed suggestive christaluria and alkaline pH. All patients required hidratation and analgesic treatment. In 3 patients indinavir dose was reduced, it was retired in another one, and 100mg of rito-navir were added in another one. Unsuccesfuly ureteral cateterization was tried in one patient. All of them presen-ted symptomatic improvement. Conclusions: We ought to know the capability of indinavir to form urolithiasis in HIV patients treated with protease inhibitors, although its use is decreasing along time. Prevalence of urolithiasis in these patients seems to be higher as length of treatment becomes longer. Metabolic alterations in urine have been proved in these patients, contributing to a higher incidence of lithiasis than in general population (AU)

[Greenlight KTP-laser photovaporization. Initial experience in a public hospital]. / Fotovaporización prostática con láser verde-KTP. Experiencia inicial en un hospital público.

OBJECTIVES: Despite the fact that transurethral resection of the prostate (TURP) continues being the gold standard for the surgical treatment of benign prostatic hyperplasia (BPH), the good results obtained with the use of new energy sources have led to their use in daily practice. METHODS: Between September 2005 and January 2007, we have treated 63 patients with KTP laser photoselective vaporization of the prostate (PVP) in our service. Preoperatively we asked for IPSS, performed physical exam, digital rectal exam, abdominal , renal, bladder and prostatic ultrasound measuring postvoid residual volume, as well as flowmetry and PSA determination. Patients were revised after 1, 3, 6 and 12 months, undergoing uroflowmetry, IPSS, ultrasound and PSA; a satisfaction survey was also fulfilled at this interviews. RESULTS: Mean age was 67 years (range 58-85) and mean preoperative prostatic volume was 48cc (range 34-67), mean preoperative IPSS was 17.7 and mean maximum flow 8.1 mL/s. 12 patients presented post void residual volume larger than 100 mL. Most patients presented medium or high anaesthetic risk. Mean operative time was 64 minutes (range 45-95). In most cases we used just one fibre, and mean energy released was 175,000 Joules (range 85,000-24,000). Mean hospital stay was 32.2 hours (range 19-55). In postoperative revisions we could state a significant decrease of IPSS, improvement in maximum flow, and also good or very good satisfaction degree in about 80% of the patients. Only 3 of them presented hematuria that needed to be attended by the urologist, none of them needed transfusion. One patient was admitted for severe urinary infection and eight patients referred irritative low urinary tract symptoms in their first postoperative checkup. CONCLUSIONS: KTP laser PVP is a safe, reproducible technique with optimal short and middle term outcomes, which should be considered as the first choice surgical treatment in elderly patients, patients with chronic anaemic diseases or anticoagulated, and patients with high anaesthesic or surgical risk.

[The use of renal ultrasound for adult acute pyelonephritis]. / Uso de la ecografía en la pielonefritis aguda del adulto.

OBJECTIVES: To evaluate the need to perform renal ultrasound (US) in adult patients with acute pyelonephritis (APN). METHODS: A Review of the bibliography in the data bases PubMed and Cochrane Collaboration about the use of the ultrasonography in the evaluation and diagnosis of APN. RESULTS: Thirty-seven papers were found, but only 5 fulfilled the requirements for analysis. Four hundred and sixty three patients diagnosed of APN were revised, 449 (977) of whom got US. Between 171 ultrasonographic findings, only in 52 (11.5%) cases US findings changed initial diagnosis to complicated APN that could lead to surgery. CONCLUSION: The low incidence of ultrasonographic findings does not justify the practice of renal US to every patient with APN. In patients with persistent fever longer than 72 hours, antecedents of anomalies of the urinary tract, antecedents of renal lithiasis, pregnancy, atypical clinic or diabetes mellitus, there is a higher incidence of pathological US findings that justify a change in the therapeutic approach. Further prospective clinical studies are needed to confirm these conclusions.

[Inguinoscrotal bladder hernias]. / Hernias Vesicales inguinoescrotales.

OBJECTIVES: Despite the high incidence of inguinal hernias. In the general population, only a small percentage of them involve the bladder. Bladder wall weakness and bladder outlet obstruction are involved in its pathogenesis. We present our experience in the diagnosis and treatment of this rare disease. METHODS: A total of eight patients have been diagnosed of inguinoscrotal bladder hernia and treated in our center over the last 18 years. In most cases, retrograde and voiding cystourethrograms, prostatic and bladder ultrasound, and uroflowmetry have been performed. The treatment varied depending on the characteristics of the herniated bladder tissues and bladder capacity. The treatment of bladder outlet obstruction varied depending on the etiology. RESULTS: Two patients presented at the emergency room of our centre, the others were diagnosed at the outpatient clinics of our department. Resection of the herniated bladder tissue was carried out in four patients due to the quality of the tissue; bladder-pexy to the abdominis rectus muscles was performed in one patient; hernia repair with bladder reintroduction was the treatment in the other four cases. Bladder outlet obstruction was treated in six cases. Seven patients showed clinical improvement, showing normal bladder morphology on post operative cystogram. CONCLUSIONS: Bladder hernia is a rare pathology often presenting in mid age males. It should be suspected in every male with lower urinary tract obstructive symptoms and associated inguinal hernia. Retrograde and voiding cystourethrogram are the radiological diagnostic tests of choice to evaluate this disease. The treatment of choice is that of the hernia and bladder outlet obstruction.

Uso de la ecografía en la pielonefritis aguda del adulto / The use of renal ultrasound for adult acute pyelonephritis

Objetivo: Evaluar la necesidad de la realización de una ecografía en los pacientes adultos afectos de una pielonefritis aguda (PNA). Métodos: Revisión de la bibliografía existente en las bases de datos PubMed y Cochrane Collaborattion sobre el uso de la ecografía para valoración y diagnóstico de PNA. Resultados: Se encontraron 37 textos de los cuales únicamente cumplían requisitos para su análisis 5. En total se analizaron 463 pacientes de los cuales a 449 (97%) se le realizó una ecografía por el diagnóstico de PNA. De los 171 hallazgos ecográficos, únicamente en 52 (11.5%) cambiaba el diagnóstico a PNA complicada con posibilidad de tratamiento quirúrgico. Conclusion: La baja incidencia de hallazgos ecográficos no justifica su realización a todo paciente con PNA. En los pacientes con fiebre persistente más de 72 horas (h), antecedentes de anomalías de la vía urinaria, antecedentes de litiasis renal, gestación, clínica atípica o diabetes mellitus, existe una mayor incidencia de hallazgos patológicos en la ecografía que justifiquen un cambio de actitud terapéutica. Hacen falta estudios bien diseñados para confirmar estas conclusiones (AU)

Objectives: To evaluate the need to perform renal ultrasound (US) in adult patients with acute pyelonephritis (APN). Methods: A Review of the bibliography in the data bases PubMed and Cochrane Collaboration about the use of the ultrasonography in the evaluation and diagnosis of APN. Results: Thirty-seven papers were found, but only 5 fulfilled the requirements for analysis. Four hundred and sixty three patients diagnosed of APN were revised, 449 (97%) of whom got US. Between 171 ultrasonographic findings, only in 52 (11.5%) cases US findings changed initial diagnosis to complicated APN that could lead to surgery. Conclusion: The low incidence of ultrasonographic findings does not justify the practice of renal US to every patient with APN. In patients with persistent fever longer than 72 hours, antecedents of anomalies of the urinary tract, antecedents of renal lithiasis, pregnancy, atypical clinic or diabetes mellitus, there is a higher incidence of pathological US findings that justify a change in the therapeutic approach. Further prospective clinical studies are needed to confirm these conclusions (AU)

Hernias vesicales inguinoescrotales / Inguinoscrotal bladder hernias

Objetivo: A pesar de la elevada incidencia de hernia inguinal en la población general, tan solo un pequeño porcentaje de estas incluye una porción vesical. En su patogenia están implicadas, la debilidad de la pared abdominal y la obstrucción de salida del tracto urinario inferior. En este trabajo presentamos nuestra experiencia en el diagnóstico y tratamiento de esta infrecuente patología. Métodos: Un total de 8 pacientes han sido diagnosticados y tratados en nuestro centro, con el diagnóstico de hernia vesical inguinoescrotal en los últimos 18 años. Para alcanzar el diagnóstico se realizó uretrocistografía retrógrada y permiccional, ecografía renovesical y prostática y flujometría en la mayoría de los casos. El tratamiento realizado varió en función de las características del tejido vesical herniado y la capacidad vesical. En cuanto al tratamiento de la obstrucción infravesical, varió en función de la etiología de la misma. Resultados: Dos pacientes debutaron de forma aguda acudiendo al servicio de urgencias de nuestro centro, siendo el resto diagnósticados en las consultas externas de nuestro servicio. En 4 pacientes se realizó resección del tejido vesical herniado debido fundamentalmente a las características del mismo, realizando pexia vesical a los músculos rectos del abdomen en un caso y cura herniaria con reintroducción vesical en los cuatro restantes. En 6 pacientes se realizó tratamiento de la causa de obstrucción infravesical subyacente. Siete pacientes presentaron mejoría clínica, mostrando morfología vesical normal en la cistografía de control postoperatorio. Conclusiones: Le hernia vesical es una patología infrecuente que suele presentarse en varones de mediana edad. Ha de sospecharse en todo varón con sintomatología obstructiva del tracto urinario inferior y hernia inguinal asociada. La prueba de diagnóstico radiológico de elección para valorar esta patología es la cistografía retrógada y permiccional, y el tratamiento de elección es el propio de la hernia y el de la obstrucción infravesical (AU)

Objectives: Despite the high incidence of inguinal hernias. In the general population, only a small percentage of them involve the bladder. Bladder wall weakness and bladder outlet obstruction are involved in its pathogenesis. We present our experience in the diagnosis and treatment of this rare disease. Methods: A total of eight patients have been diagnosed of inguinoscrotal bladder hernia and treated in our center over the last 18 years. In most cases, retrograde and voiding cystourethrograms, prostatic and bladder ultrasound, and uroflowmetry have been performed. The treatment varied depending on the characteristics of the herniated bladder tissues and bladder capacity. The treatment of bladder outlet obstruction varied depending on the etiology. Results: Two patients presented at the emergency room of our centre, the others were diagnosed at the outpatient clinics of our department. Resection of the herniated bladder tissue was carried out in four patients due to the quality of the tissue; bladder-pexy to the abdominis rectus muscles was performed in one patient; hernia repair with bladder reintroduction was the treatment in the other four cases. Bladder outlet obstruction was treated in six cases. Seven patients showed clinical improvement, showing normal bladder morphology on post operative cystogram. Conclusions: Bladder hernia is a rare pathology often presenting in mid age males. It should be suspected in every male with lower urinary tract obstructive symptoms and associated inguinal hernia. Retrograde and voiding cystourethrogram are the radiological diagnostic tests of choice to evaluate this disease. The treatment of choice is that of the hernia and bladder outlet obstruction (AU)