Nefrometrías: reproducibilidad interobservador y predicción de factores perioperatorios / Nephrometry scores: Interobserver reproducibility and perioperative factors prediction

Objetivos: Validar la relación de las nefrometrías en una serie de pacientes a los que se les realizan nefrectomías parciales con parámetros perioperatorios. Demostrar la reproducibilidad urólogo-radiólogo en cuanto a los resultados de las nefrometrías. Material y métodos: Revisión retrospectiva de los pacientes intervenidos mediante nefrectomía parcial abierta y laparoscópica entre 2005 y junio de 2012 registrados en una base de datos de cumplimentación prospectiva. A un total de 86 pacientes se les calculan las nefrometrías RENAL, PADUA y C-index por parte de un urólogo y una radióloga. Procedimos a un estudio comparativo de los resultados mediante índices de correlación de Spearman y Pearson. Resultados: La distribución según la complejidad de los tumores al calcular RENAL fue: 42 (49%) baja, 35 (41%) moderada y 9 (11%) alta. Según PADUA: 35 (41%) de baja complejidad, 32 (37%) intermedia y 19 (22%) alta. No se encontró correlación estadísticamente significativa en cuanto a la aparición de complicaciones operatorias y el resultado anatomopatológico en el caso de RENAL y PADUA, encontrando correlación en el caso de PADUA en relación con el tiempo de isquemia caliente. Se encontró en todas una correlación positiva según el índice de Spearman en la valoración por el urólogo y la radióloga. Conclusiones: El cálculo de las nefrometrías previo a la cirugía de los tumores renales puede ayudar en la planificación quirúrgica, pero surgen dudas sobre la utilidad para la previsión de parámetros quirúrgicos y anatomopatológicos. La correlación entre urólogo y radiólogo parece suficente

Objectives: To validate the relation of the nephrometry scores in a series of patients who underwent partial nephrectomy with perioperative parameters and the urologist-radiologist reproducibility. Materials and methods: A retrospective study of open and laparoscopic partial nephrectomy patients performed between 2005 and 2012 registered in prospective filled out database. An urologist and a radiologist calculated the RENAL, PADUA and C-index for 86 patients. We carried out a comparative study of the results using the Spearman and Pearson correlation indexes. Results: Distribution according to the complexity of the tumors with the RENAL calculation was: 42 (49%) low, 35 (41%) moderated and 9 (11%) high complexity. According to PADUA: 35 (41%) low complexity, 32 (37%) intermediate and 19 (22%) high. No statistically significant correlation was found for the appearance of operative complications and the pathology results in case of RENAL and PADUA. A correlation was found in the case of PADUA in relation to the warm ischemia time. Positive correlation according to Spearman's index was found in RENAL, PADUA and C-index between urologist and radiologist evaluations. Conclusions: Nephrometry scores can be a useful tool to plan the surgical technique or approach. However, it is not clear if they are really predictors of surgical or pathologic parameters. The correlation between the urologist and radiologist seems to be sufficient to recommend their use by both specialties

Nephrometry scores: interobserver reproducibility and perioperative factors prediction.

OBJECTIVES: To validate the relation of the nephrometry scores in a series of patients who underwent partial nephrectomy with perioperative parameters and the urologist-radiologist reproducibility. MATERIAL AND METHODS: A retrospective study of open and laparoscopic partial nephrectomy patients performed between 2005 and 2012 registered in prospective filled out database. An urologist and a radiologist calculated the R.E.N.A.L., PADUA and C-index for 86 patients. We carried out a comparative study of the results using the Spearman and Pearson correlation indexes. RESULTS: Distribution according to the complexity of the tumors with the RENAL calculation was: 42 (49%) low, 35 (41%) moderated and 9 (11%) high complexity. According to PADUA: 35 (41%) low complexity, 32 (37%) intermediate and 19 (22%) high. No statistically significant correlation was found for the appearance of operative complications and the pathology results in case of RENAL and PADUA. A correlation was found in the case of PADUA in relation to the warm ischemia time. Positive correlation according to Spearman's index was found in RENAL, PADUA and C-index between urologist and radiologist evaluations. CONCLUSIONS: Nephrometry scores can be a useful tool to plan the surgical technique or approach. However, it is not clear if they are really predictors of surgical or pathologic parameters. The correlation between the urologist and radiologist seems to be sufficient to recommend their use by both specialties.

Lich-Gregoir technique and routine use of double J catheter as the best combination to avoid urinary complications in kidney transplantation.

INTRODUCTION: Urinary complications in kidney transplantation cause patient morbidity and can decrease graft survival. Most of the complications stem from the vesicoureteric anastomosis. Different techniques for ureteroneocystostomy (UNC) have been designed to avoid these complications. The routine use of a double J catheter after the anastomosis has the same purpose. Our aim was to show our experience and compare the use or non-use of a double J catheter and different techniques for ureteric reimplantation with the rate of urologic complications. MATERIAL AND METHODS: We conducted a retrospective, nonrandomized study of 1011 renal transplantations performed between July 1985 and April 2012. We recorded the surgical techniques for UNC, the use or non-use of a double J catheter, and urinary complications (ureteric fistulae and strictures). The first 700 kidney transplantations (group A) were performed using several UNC techniques (Taguchi, Leadbetter-Politano, and Lich-Gregoir) with a selective use of double J catheter according to the criteria of the surgeon. In the last 311 patients (group B), a surgical technique was established (Lich-Gregoir), as well as the universal use of double J catheters. RESULTS: Urinary fistula occurred in 7% of group A patients and 2% of group B patients (P = .0001). Ureteric stricture occurred in 5.3% of patients in group A and 3% of group B patients (P = .09). In our study, routine prophylactic stenting combined with the Lich-Gregoir UNC technique has decreased the incidence of postoperative fistulae. CONCLUSIONS: Individually, the use of double J catheters seems to lessen the incidence of fistulae, although statistically, the difference is not significant. Accurate knowledge of the complications rates, recommendations of guidelines, and the early diagnosis are essential to attaining reasonable results in kidney transplantation.

Comentario Editorial de: Prostatectomía radical laparoscópica: impacto de la curva de aprendizaje en los márgenes quirúrgicos positivos / Editorial Comment: Laparoscopic radical prostatectomy. Impact of the learning curve on postive surgical margin

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[Morbidity and risk factors of transrectal prostate biopsy]. / Morbilidad y factores de riesgo de la biopsia transrectal prostática.

OBJECTIVES: To evaluate the incidence of minor complications that rarely need treatment (haematuria, hematospermia and rectal bleeding) and major complications (fever and shock) in patients undergoing transrectal biopsy of the prostate and to identify risk factors. PATIENTS AND METHODS: We present an analytic and prospective study where we evaluated 146 patients subjected to transrectal biopsy of the prostate from December 2007 to September 2008. Complications rates and variables were analyzed. RESULTS: Eight patients (5,5%) suffered fever and seven (4,8%) of them were admitted. One of the patients (0,7%) suffered shock. The median of time between biopsy and fever was 3.5 days (1-10 days). Haematuria and hematospermia were more frequent in patients younger than 65 years (p<0.05) and fever and sepsis were more frequent in patients with prostate volume smaller than 55mL (p<0.05). CONCLUSIONS: The complications of the transrectal biopsy of the prostate are frequent, autolimited and they rarely suppose a health hazard for the patients. The most frequent are haematuria and hemospermia, specially in younger patients, whereas infectious complications are rarer and in our study are more frequent in patients with smaller prostates. We must take into account that the information to the patient is very important after a prostate biopsy, so we can avoid useless consultations (for example with haematuria) and it will enable to identify important signs like fever earlier.

Morbilidad y factores de riesgo de la biopsia transrectal prostática / Morbidity and risk factors of transrectal prostate biopsy

Objetivos: Analizar la incidencia de complicaciones menores que no requirieron tratamiento médico (hematuria, hematospermia y rectorragia) y mayores (fiebre y sepsis) en los pacientes sometidos a biopsia transrectal prostática (BTRP) e identificar posibles factores de riesgo. Material y métodos: Presentamos un estudio analítico, consecutivo, descripitivo, de una cohorte de 146 pacientes sometidos a BTRP desde diciembre de 2007–septiembre de 2008. Se analizaron los signos y síntomas que sufrieron y las variables edad, volumen prostático, resultado y el hecho de ser la primera biopsia o una sucesiva. Resultados: En ese periodo 8 (5,5%) de los pacientes sufrieron fiebre, 7 (4,8%) de los cuales requirieron ingreso, con una mediana de estancia hospitalaria de 3 días. Un paciente (0,7%) presentó shock séptico. La mediana del tiempo de latencia, entre la BTRP y la aparición de fiebre fue de 3,5 días (rango de 1–10 días). La hematuria y la hemospermia fueron más frecuentes en menores de 65 años (p<0,05) y la fiebre en los pacientes con volúmenes prostáticos menores de 55mL (p<0,05). Conclusiones: Las complicaciones de la biopsia transrectal prostática son frecuentes, autolimitadas y muy raramente ponen en peligro la vida del paciente. Las más frecuentes son la hematuria y la hemospermia, dándose en pacientes de menor edad, mientras que las complicaciones infecciosas son más raras y en nuestra muestra son más frecuentes en pacientes con volúmenes prostáticos menores. Consideramos de gran importancia informar al paciente de las complicaciones que pueden aparecer tras la BTRP, evitando así consultas innecesarias en los servicios de urgencias por los síntomas menores y permitiendo controlar precozmente el desarrollo de infecciones graves (AU)

Objectives: To evaluate the incidence of minor complications that rarely need treatment (haematuria, hematospermia and rectal bleeding) and major complications (fever and shock) in patients undergoing transrectal biopsy of the prostate and to identify risk factors. Patients and methods: We present an analitic and prospective study where we evaluated 146 patients subjected to transrectal biopsy of the prostate from December 2007 to September 2008. Complications rates and variables were analized. Results: Eight pacients (5,5%) suffered fever and seven (4,8%) of them were admitted. One of the pacients (0,7%) suffered shock. The median of time between biopsy and fever was 3.5 days (1–10 days). Haematuria and hematospermia were more frequent in patients younger than 65 years (p<0.05) and fever and sepsis were more frequent in patients with prostate volume smaller than 55mL (p<0.05). Conclusions: The complications of the transrectal biopsy of the prostate are frequent, autolimited and they rarely suppose a health hazard for the patients. The most frequent are haematuria and hemospermia, specially in younger patients, whereas infectious complications are rarer and in our study are more frequent in patients with smaller prostates. We must take into account that the information to the patient is very important after a prostate biopsy, so we can avoid useless consultations (for example with haematuria) and it will enable to identify important signs like fever earlier (AU)