Análisis de la percepción del dolor asociado al estudio urodinámico en niños mayores de tres años / Analysis of pain perception associated with urodynamic testing in children over 3 years old

Objetivo: Medir la tolerancia del estudio urodinámico (EUD) en el paciente pediátrico, mediante una escala visual analógica. Analizar qué variables clínicas y relacionadas con el EUD influyen en la percepción del dolor.Material y métodosEstudio transversal de 139 pacientes pediátricos tras un EUD (entre diciembre del 2013 a mayo del 2018). Criterio de inclusión: entender y expresar su experiencia tras el EUD (edad preescolar y escolar). No se incluyeron adolescentes.La herramienta de evaluación: escala visual analógica del dolor (EVA 0-10). Se obtuvieron otras variables clínicas y asociadas al EUD. Análisis estadístico: U de Mann-Whitney, Kruskal-Wallis. Análisis de correlación de Spearman (rs). Análisis multivariante mediante regresión logística ordinal. Significación p < 0,05.ResultadosMedia de edad 7,7 años (DE 2,4), mediana puntuación EVA, 2 (2-6). En un 41% (n = 57), la puntuación fue ≥ 4 (dolor moderado). Análisis multivariante. Variables explicativas de obtener una puntuación EVA alta: puntuación APEUD alta (identificar en el paciente nerviosismo previo al EUD), alteración sensitivo-motora de MMII, una dificultad en el sondaje vesical y que aparezca dolor durante el llenado. La edad y el tiempo de duración del EUD no han influido en dicha puntuación EVA.ConclusionesAunque el EUD ha generado que un 40% de los pacientes pediátricos de nuestro estudio expresaran molestias o dolor, es una prueba bien tolerada.Las variables que han influido en la percepción del dolor han sido: el nerviosismo del paciente previo al EUD, una alteración sensitivo-motora localizada en metámeras lumbosacras, una dificultad en el sondaje vesical y que aparezca dolor durante el llenado vesical. (AU)

Objective: To measure the tolerance of urodynamic testing (UDT) in the pediatric patient by means of the Visual Analog Scale (VAS). To analyze which clinical and UDT-related variables influence pain perception. Material and methods. Cross-sectional study of 139 pediatric patients undergoing UDT (December 2013 - May 2018). Inclusion criteria: understanding and expressing their experience after UDT (preschool and school age). No adolescents were included.Measurement instrument Visual Analog Scale (0-10). Other clinical and UDT-associated variables were obtained. Statistical analysis: Mann-Whitney U test, Kruskal Wallis test. Spearman's rank correlation analysis (rs). Multivariate analysis through ordinal logistic regression. Significance p < 0.05.ResultsMean age 7.7 years (SD 2.4), median VAS score, 2 (2-6). In 41% (n = 57), the score was ≥ 4 (moderate pain). Multivariate analysis. Explanatory variables for obtaining a high VAS score: high APUDT score (identifying patient anxiety prior to UDT), sensory-motor alteration in the lower limbs, difficult bladder catheterization and the appearance of pain during the filling phase. Age and duration of the UDT have not influenced the VAS score.ConclusionsAlthough the UDT has resulted in 40% of the pediatric patients in our study expressing discomfort or pain, it is a well-tolerated test.The variables that have influenced on pain perception were patient's anxiety prior to UDT, a sensory-motor alteration located in the lumbosacral metameres, difficult bladder catheterization and the appearance of pain during bladder filling. (AU)

Analysis of pain perception associated with urodynamic testing in children over 3 years old. / Análisis de la percepción del dolor asociado al estudio urodinámico en niños mayores de tres años.

OBJECTIVE: To measure the tolerance of urodynamic testing (UDT) in the pediatric patient by means of the Visual Analog Scale (VAS). To analyze which clinical and UDT-related variables influence pain perception. MATERIAL AND METHODS: Cross-sectional study of 139 pediatric patients undergoing UDT (December 2013 - May 2018). INCLUSION CRITERIA: understanding and expressing their experience after UDT (preschool and school age). No adolescents were included. Measurement instrument Visual Analog Scale (0-10). Other clinical and UDT-associated variables were obtained. STATISTICAL ANALYSIS: Mann-Whitney U test, Kruskal Wallis test. Spearman's rank correlation analysis (rs). Multivariate analysis through ordinal logistic regression. Significance p < 0.05. RESULTS: Mean age 7.7 years (SD 2.4), median VAS score, 2 (2-6). In 41% (n = 57), the score was ≥ 4 (moderate pain). Multivariate analysis. Explanatory variables for obtaining a high VAS score: high APUDT score (identifying patient anxiety prior to UDT), sensory-motor alteration in the lower limbs, difficult bladder catheterization and the appearance of pain during the filling phase. Age and duration of the UDT have not influenced the VAS score. CONCLUSIONS: Although the UDT has resulted in 40% of the pediatric patients in our study expressing discomfort or pain, it is a well-tolerated test. The variables that have influenced on pain perception were patient's anxiety prior to UDT, a sensory-motor alteration located in the lumbosacral metameres, difficult bladder catheterization and the appearance of pain during bladder filling.

Evaluación de la higiene del sueño y la prevalencia de sus alteraciones en los pacientes con enuresis monosintomática. Utilidad del cuestionario BEARS / Evaluation of sleep hygiene and prevalence of sleep disorders in patients with monosymptomatic enuresis. Usefulness of the BEARS sleep screening tool

OBJETIVOS: Analizar si existe mayor prevalencia de trastornos del sueño y desórdenes en su higiene en los pacientes con enuresis monosintomática (ENM) con respecto a la población general y a los pacientes con ENM corregida. Valorar la utilidad de la escala de cribado de trastornos del sueño en la infancia BEARS en la ENM. MATERIAL Y MÉTODOS: Estudio observacional transversal (n = 341) clasificados en: ENM (n = 122), ENM corregida (> = 1 a un año sin recidiva) (ANTENUR) (n = 47) y controles (n = 172). Se utilizó el cuestionario de cribado de trastornos del sueño en la infancia BEARS. Se recopilaron variables clínicas, así como variables en referencia a la higiene del sueño. Estadísticos: chi cuadrado, t de Student, ANOVA, U Mann-Whitney y Kruskall-Wallis. Significación p < 0,05. RESULTADOS: Media de edad 9,7 ± 3,0 años. No existieron diferencias estadísticamente significativas con respecto a edad, género, IMC, antecedente de amigdalectomía, asma y número de horas de sueño. Con respecto a la higiene del sueño, los pacientes con ENM presentaron mayor porcentaje de alteraciones con respecto a los controles. En cuanto al cuestionario BEARS, demostró mayor prevalencia de alteraciones del sueño en el grupo de pacientes con ENM, con respecto a los otros dos grupos. Un 60,7% (n = 74) frente al 18,6% (n = 32) y el 38,3% (n = 18) de los controles y ANTENUR, respectivamente (p < 0,05). CONCLUSIONES: Los niños con ENM presentaron mayor prevalencia de desórdenes durante el sueño así como en la higiene de este, con respecto a los controles. El cuestionario BEARS es una herramienta clínica útil en la detección de los desórdenes del sueño en el niño

OBJECTIVES: To analyze if there is a higher prevalence of sleep disturbances and hygiene disorders in patients with monosymptomatic enuresis (MEN) with respect to general population and to patients with corrected MEN. Assess the usefulness of the BEARS sleep disorder screening tool for children with MEN. MATERIAL AND METHODS: Transverse observational study (n = 341) classified as: MEN (n = 122), corrected MEN (≥ 1 one year without recurrence) (ANTENUR) (n = 47) and controls (n = 172). The BEARS childhood sleep disorder screening questionnaire was used. Clinical variables were collected, as well as variables related to sleep hygiene. Statistics: Chi-square, Student's t, ANOVA, Mann-Whitney U and Kruskal-Wallis. Significance p < .05. RESULTS: Mean age 9.7 ± 3.0 years. There were no statistically significant differences in terms of age, sex, BMI, history of tonsillectomy, asthma and sleep time hours. With respect to sleep hygiene, patients with MEN presented a higher percentage of alterations than controls. As for the BEARS questionnaire, it showed a higher prevalence of sleep disorders in the group of patients with MEN, with respect to the other two groups: 60.7% (n = 74) versus 18.6% (n = 32) and 38.3% (n = 18) of controls and ANTENUR, respectively (p < .05). CONCLUSIONS: Children with MEN had a higher prevalence of sleep disturbances and sleep disorders than controls. The BEARS questionnaire is a useful clinical tool in the detection of sleep disorders in children

Análisis comparativo de costes directos e indirectos de dos técnicas mínimamente invasivas, para el tratamiento de la litiasis renoureteral menor de 2 cm / Comparative analysis of direct and indirect costs of two minimally invasive techniques for the treatment of renal/ureteral calculi smaller than 2 cm

OBJETIVO: Analizar de forma comparativa los costes indirectos y directos de dos técnicas mínimamente invasivas (litotricia extracorpórea (LEOC) vs. ureterorrenoscopia-láser holmium (URS/RIRS)) para el tratamiento de la litiasis reno-ureteral menor de 2 cm. MATERIAL Y MÉTODOS: Estudio prospectivo y comparativo, no aleatorizado de 84 pacientes tratados por litiasis reno-ureteral menor de 2 cm entre enero y diciembre de 2016. De estos, 38 (45,67%) se trataron con LEOC (18 litiasis renales y 20 litiasis ureterales) y 46 (54,32%) con URS/RIRS (22 litiasis renal y 24 litiasis ureteral). Un total de 19 (41,3%) pacientes estaban activos laboralmente en el grupo de URS/RIRS y 15 (39,5%) pacientes en el grupo de LEOC. Las variables analizadas fueron sexo, edad, número y tamaño de las litiasis, días de baja laboral debido al tratamiento, estimación del coste indirecto por la pérdida de productividad laboral y el coste directo del tratamiento aplicado incluyendo el seguimiento (número total de procedimientos, procedimientos auxiliares, visitas y pruebas diagnósticas). Para la estimación del coste indirecto se empleó la Encuesta de Estructura Salarial 2015 (INE). Además, también se utilizó el cuestionario «Work Productivity and Activity Impairment» (WPAI) para determinar el grado de percepción de pérdida de productividad. RESULTADOS: El número medio de sesiones hasta la resolución de la litiasis fue de 2,57 para el grupo de LEOC y de 1,04 para la URS. El promedio de días de baja laboral en el grupo de la URS fue de 7,16 días, mientras que en el caso de la LEOC fue de 3,18 (p = 0,034). Los costes indirectos totales derivados de la pérdida de productividad fueron de 621,55 € y de 276,05 € para la URS y LEOC, respectivamente. Los costes directos en el grupo de la LEOC fueron de 1.382,9 € y 2.317,71 € en el grupo de la URS. El grado de afectación en el trabajo percibido por los pacientes sometidos a URS fue del 18,88% y del 21,33% en el grupo de LEOC. El grado de afectación para realizar actividades cotidianas fue del 24,44% en URS y del 15% en LEOC. CONCLUSIONES: La LEOC es una técnica que precisa de un mayor número medio de sesiones para la resolución de la litiasis reno-ureteral menor de 2 cm, pero con una menor repercusión en los costes totales y en la percepción del grado de afectación

OBJECTIVE: To perform a comparative analysis of indirect and direct costs of two minimally invasive techniques (extracorporeal shock wave lithotripsy (ESWL) vs. ureteroscopy with holmium laser (URS/RIRS)) for the treatment of renal/ureteral calculi smaller than 2 cm. MATERIAL AND METHODS: Prospective, comparative, non-randomized study of 84 patients treated for kidney stones smaller than 2 cm between January and December 2016. Of these, 38 (45.67%) were treated with ESWL (18 renal lithiasis and 20 ureteral lithiasis) and 46 (54.32%) with URS/RIRS (22 renal lithiasis and 24 ureteral lithiasis). A total of 19 (41.3%) patients in the URS/RIRS group and 15 (39.5%) patients in the ESWL group were actively working before treatment. The variables analyzed were sex, age, number and size of lithiasis, time (days) off from work due to treatment, estimate of indirect cost due to labor productivity loss and direct treatment costs including follow-up (total number of procedures, ancillary care, visits and diagnostic tests). The 2015 Wage Structure Survey (INE) was used to estimate the indirect cost. In addition, the «Work Productivity and Activity Impairment» (WPAI) questionnaire was also used to determine the level of perceived productivity loss. RESULTS: The mean number of sessions until lithiasis resolution was achieved was 2.57 for the ESWL group and 1.04 for the URS. The mean number of days off from work in the URS group was 7.16 days and 3.18 (p = 0.034) in the ESWL group. The total indirect costs resulting from productivity loss were EUR 621.55 and EUR 276.05 for the URS and ESWL, respectively. Direct costs in the ESWL group were EUR 1,382.9 and EUR 2,317.71 in the URS group. The level of work impairment perceived by patients undergoing URS was 18.88% and 21.33% in the ESWL group. The degree of impairment for performing activities of daily living was 24.44% in the URS and 15% in ESWL. CONCLUSIONS: The ESWL technique requires a higher number of sessions for the resolution of kidney stones under 2 cm, but it has a lower impact on total costs and on the perceived degree of affectation

Evaluation of sleep hygiene and prevalence of sleep disorders in patients with monosymptomatic enuresis. Usefulness of the BEARS sleep screening tool. / Evaluación de la higiene del sueño y la prevalencia de sus alteraciones en los pacientes con enuresis monosintomática. Utilidad del cuestionario BEARS.

OBJECTIVES: To analyze if there is a higher prevalence of sleep disturbances and hygiene disorders in patients with monosymptomatic enuresis (MEN) with respect to general population and to patients with corrected MEN. Assess the usefulness of the BEARS sleep disorder screening tool for children with MEN. MATERIAL AND METHODS: Transverse observational study (n=341) classified as: MEN (n=122), corrected MEN (≥ 1 one year without recurrence) (ANTENUR) (n=47) and controls (n=172). The BEARS childhood sleep disorder screening questionnaire was used. Clinical variables were collected, as well as variables related to sleep hygiene. STATISTICS: Chi-square, Student's t, ANOVA, Mann-Whitney U and Kruskal-Wallis. Significance p<.05. RESULTS: Mean age 9.7±3.0 years. There were no statistically significant differences in terms of age, sex, BMI, history of tonsillectomy, asthma and sleep time hours. With respect to sleep hygiene, patients with MEN presented a higher percentage of alterations than controls. As for the BEARS questionnaire, it showed a higher prevalence of sleep disorders in the group of patients with MEN, with respect to the other two groups: 60.7% (n=74) versus 18.6% (n=32) and 38.3% (n=18) of controls and ANTENUR, respectively (p<.05). CONCLUSIONS: Children with MEN had a higher prevalence of sleep disturbances and sleep disorders than controls. The BEARS questionnaire is a useful clinical tool in the detection of sleep disorders in children.

Comparative analysis of direct and indirect costs of two minimally invasive techniques for the treatment of renal/ureteral calculi smaller than 2 cm. / Análisis comparativo de costes directos e indirectos de dos técnicas mínimamente invasivas, para el tratamiento de la litiasis renoureteral menor de 2 cm.

OBJECTIVE: To perform a comparative analysis of indirect and direct costs of two minimally invasive techniques (extracorporeal shock wave lithotripsy (ESWL) vs. ureteroscopy with holmium laser (URS/RIRS)) for the treatment of renal/ureteral calculi smaller than 2 cm. MATERIAL AND METHODS: Prospective, comparative, non-randomized study of 84 patients treated for kidney stones smaller than 2 cm between January and December 2016. Of these, 38 (45.67%) were treated with ESWL (18 renal lithiasis and 20 ureteral lithiasis) and 46 (54.32%) with URS/RIRS (22 renal lithiasis and 24 ureteral lithiasis). A total of 19 (41.3%) patients in the URS/RIRS group and 15 (39.5%) patients in the ESWL group were actively working before treatment. The variables analyzed were sex, age, number and size of lithiasis, time (days) off from work due to treatment, estimate of indirect cost due to labor productivity loss and direct treatment costs including follow-up (total number of procedures, ancillary care, visits and diagnostic tests). The 2015 Wage Structure Survey (INE) was used to estimate the indirect cost. In addition, the «Work Productivity and Activity Impairment¼ (WPAI) questionnaire was also used to determine the level of perceived productivity loss. RESULTS: The mean number of sessions until lithiasis resolution was achieved was 2.57 for the ESWL group and 1.04 for the URS. The mean number of days off from work in the URS group was 7.16 days and 3.18 (p = 0.034) in the ESWL group. The total indirect costs resulting from productivity loss were EUR 621.55 and EUR 276.05 for the URS and ESWL, respectively. Direct costs in the ESWL group were EUR 1,382.9 and EUR 2,317.71 in the URS group. The level of work impairment perceived by patients undergoing URS was 18.88% and 21.33% in the ESWL group. The degree of impairment for performing activities of daily living was 24.44% in the URS and 15% in ESWL. CONCLUSIONS: The ESWL technique requires a higher number of sessions for the resolution of kidney stones under 2 cm, but it has a lower impact on total costs and on the perceived degree of affectation.

Utilidad de la clasificación de los patrones de disfunción miccional en el pronóstico del primer tratamiento endoscópico del reflujo vesicoureteral en niños mayores de 3 años / Usefulness of the classification of urinary dysfunction for the prognosis of the first endoscopic treatment of vesicoureteral reflux in children over the age of 3

Objetivos: Valorar el rendimiento diagnóstico de los patrones de micción disfuncional asociados al reflujo vesicoureteral (RVU) en niños mayores de 3 años, en función del resultado del primer tratamiento endoscópico (T1END), agrupados en una clasificación diseñada por nuestro grupo (CMD.URI-La Fe) y su comparación con otras clasificaciones existentes como la de Van Batavia et al. Material y métodos: Estudio transversal ambispectivo de una muestra de 50 niños. Criterios de exclusión: TEND previo, edad ≤ 3 años, anomalías anatómicas o neurológicas y antecedentes de cirugía uretral o abdominopélvica. Previamente al T1END se realizó una valoración de la función de vaciado vesical mediante flujometría + electromiografía (UF-EMG) y del residuo posmiccional (ecografía). Se obtuvieron otras variables procedentes del diario miccional, el espesor de la pared vesical premiccional (ecografía), así como variables clínicas. La corrección del RVU fue valorada mediante cistografía isotópica a los 3 meses del tratamiento. Se realizó una clasificación de los patrones miccionales en función de las variables significativas (URI-La Fe) y se valoró su rendimiento diagnóstico, comparándola al clasificar a los pacientes según propone Van Batavia et al. Resultados: Media de edad: 6,8 ± 2,28 años. Varones/mujeres (44%/56%). Grados de RVU: leve, moderado, severo. Tasa de corrección del RVU T1END: 77% (n = 38). Rendimiento diagnóstico (Van Batavia; URI-La Fe): predicción correcta (37,5%; 75%), sensibilidad (32,4%; 87,8%), especificidad (54,5%; 46,6%), valor predictivo positivo (70,6; 78,3%) y valor predictivo negativo (19,4%; 63,6%). Conclusiones: Nuestros resultados muestran la utilidad del estudio no invasivo y la clasificación de la disfunción miccional del niño mayor de 3 años previo al primer tratamiento endoscópico del RVU

Objectives: To assess the diagnostic performance of urinary dysfunction patterns associated with vesicoureteral reflux (VUR) in children over the age of 3 according to the result of the first endoscopic treatment (ENDT1), grouped into a classification designed by our group (CMD.URI-La Fe). Comparison with other current classifications such as that of Van Batavia et al. Material and methods: Ambispective cross-cutting study of a sample of 50 children. Exclusion criteria: previous ENDT, age ≤ 3 years, anatomical or neurological anomalies and a history of ureteral or abdominopelvic surgery. Prior to the ENDT1, a bladder voiding function assessment by uroflowmetry+electromyography (UF-EMG) and post-mictional residue (ultrasound). Other variables from the bladder diary, pre-mictional bladder wall thickness and other clinical variables. The correction of VUR was assessed by isotope cystography 3 months after the treatment. Urinary patterns were classified according to the significant variables (URI-La Fe), and the diagnostic performance of this classification was assessed, comparing it to the classification of patients as proposed by Van Batavia et al. Results: Mean age: 6.8±2.28 years. Males/females (44%/56%). Grades of VUR (mild/moderate/severe). ENDT1 VUR correction rate: 77% (n=38). Diagnostic performance (Van Batavia; URI-La Fe): correct prediction (37.5%; 75%), sensitivity (32.4%; 87.8%), specificity (54.5%; 46.6%), positive predictive value (70.6; 78.3%) and negative predictive value (19.4%; 63.6%). Conclusions: Our results show the usefulness of the non-invasive test and the classification of urinary dysfunction in children aged over 3 years prior to the first endoscopic treatment of VUR

Usefulness of the classification of urinary dysfunction for the prognosis of the first endoscopic treatment of vesicoureteral reflux in children over the age of 3. / Utilidad de la clasificación de los patrones de disfunción miccional en el pronóstico del primer tratamiento endoscópico del reflujo vesicoureteral en niños mayores de 3 años.

OBJECTIVES: To assess the diagnostic performance of urinary dysfunction patterns associated with vesicoureteral reflux (VUR) in children over the age of 3 according to the result of the first endoscopic treatment (ENDT1), grouped into a classification designed by our group (CMD.URI-La Fe). Comparison with other current classifications such as that of Van Batavia et al. MATERIAL AND METHODS: Ambispective cross-cutting study of a sample of 50 children. EXCLUSION CRITERIA: previous ENDT, age ≤ 3 years, anatomical or neurological anomalies and a history of ureteral or abdominopelvic surgery. Prior to the ENDT1, a bladder voiding function assessment by uroflowmetry+electromyography (UF-EMG) and post-mictional residue (ultrasound). Other variables from the bladder diary, pre-mictional bladder wall thickness and other clinical variables. The correction of VUR was assessed by isotope cystography 3 months after the treatment. Urinary patterns were classified according to the significant variables (URI-La Fe), and the diagnostic performance of this classification was assessed, comparing it to the classification of patients as proposed by Van Batavia et al. RESULTS: Mean age: 6.8±2.28 years. Males/females (44%/56%). Grades of VUR (mild/moderate/severe). ENDT1 VUR correction rate: 77% (n=38). Diagnostic performance (Van Batavia; URI-La Fe): correct prediction (37.5%; 75%), sensitivity (32.4%; 87.8%), specificity (54.5%; 46.6%), positive predictive value (70.6; 78.3%) and negative predictive value (19.4%; 63.6%). CONCLUSIONS: Our results show the usefulness of the non-invasive test and the classification of urinary dysfunction in children aged over 3 years prior to the first endoscopic treatment of VUR.

¿3 + 4 = 6? Implicaciones de la estratificación del cáncer de próstata localizado Gleason 7 por número y porcentaje de cilindros positivos de biopsia en la selección de pacientes para vigilancia activa / 3+4 = 6? Implications of the stratification of localised Gleason 7 prostate cancer by number and percentage of positive biopsy cores in selecting patients for active surveillance

Objetivo: Investigar si el número y el porcentaje de cilindros positivos de la biopsia identifica un subgrupo de cáncer de próstata (CaP) Gleason 3 + 4 de comportamiento biológico similar a los Gleason 3 + 3. Material y método: Estudio observacional, tras prostatectomía radical, de una cohorte de 799 pacientes con CaP localizado de riesgo bajo (n = 582; Gleason 6; PSA < 10ng/ml y cT1c-2a) e intermedio favorable (n = 217; Gleason 3 + 4; PSA ≤ 10 ng/ml y pT2abc). Los tumores Gleason 3 + 4 se estratificaron por número (≤ 3 vs .> 3) y porcentaje de cilindros positivos (≤ 33% vs. > 33%). Se analizó su asociación con el riesgo de recidiva bioquímica (ReB) y mortalidad cáncer específica (MCE). Se realizaron diferentes modelos predictivos mediante regresión de Cox y se estimó (C-index) y comparó su capacidad predictiva. Resultados: Con una mediana de seguimiento de 71 meses, la probabilidad de ReB y de MCE en el grupo de pacientes con tumores Gleason 3+4 y número (≤3) o porcentaje bajo (≤33%) de cilindros positivos no fue significativamente diferente de las de los pacientes con tumores Gleason 6. A 5 y 10 años, no se observaron diferencias significativas en el número de ReB, en la probabilidad de permanecer libre de ReB, en el número de muertes por CaP ni en la probabilidad de muerte por CaP entre ambos grupos. Por el contrario, los pacientes con tumores Gleason 3+4 y >33% de cilindros positivos presentaron mayor número de muertes por CaP que los pacientes con tumores Gleason 6 y, a 10 años, la probabilidad de MCE fue significativamente mayor. Este subgrupo de tumores presentó un riesgo significativamente mayor de ReB (RR = 1,6; p = 0,02) respecto a los Gleason 6 y, sobre todo, de MCE (RR = 5,8; p = <0,01). El modelo con Gleason 3 + 4 estratificado por porcentaje de cilindros positivos mejoró significativamente la capacidad predictiva de ReB y MCE. Conclusiones: Un número<3 cilindros y un porcentaje < 33% de cilindros positivos identifica un subgrupo de tumores Gleason 3 + 4 con comportamiento biológico similar a los Gleason 6. A 10 años, no se observaron diferencias en el riesgo de ReB y MCE entre ambos grupos. Estos resultados aportan pruebas que apoyan a la vigilancia activa como alternativa para tumores Gleason 3 + 4 y baja extensión tumoral en biopsia

Objective: To determine whether the number and percentage of positive biopsy cores identify a Gleason 3 + 4 prostate cancer (PC) subgroup of similar biologic behaviour to Gleason 3 + 3. Material and method: An observational post-radical prostatectomy study was conducted of a cohort of 799 patients with localised low-risk (n = 582, Gleason 6, PSA < 10ng/ml and cT1c-2a) and favourable intermediate PC (n = 217, Gleason 3 + 4, PSA ≤ 10 ng/ml and pT2abc). The Gleason 3 + 4 tumours were stratified by number (≤ 3 vs.> 3) and by percentage of positive cores (≤ 33% vs. > 33%). We analysed the tumours’ association with the biochemical recurrence risk (BRR) and cancer-specific mortality (CSM). We conducted various predictive models using Cox regression and estimated (C-index) and compared their predictive capacity. Results: With a median follow-up of 71 months, the BRR and CSM of the patient group with Gleason 3 + 4 tumours and a low number (≤ 3) and percentage (≤ 33%) of positive cores were not significantly different from those of the patients with Gleason 6 tumours. At 5 and 10 years, there were no significant differences in the number of biochemical recurrences, the probability of remaining free of biochemical recurrences, the number of deaths by PC or the probability of death by PC between the 2 groups. In contrast, the patients with Gleason 3+4 tumours and more than 33% of positive cores presented more deaths by PC than the patients with Gleason 6 tumours. At 10 years, the probability of CSM was significantly greater. This subgroup of tumours showed a significantly greater BRR (RR, 1.6; P = .02) and CSM (RR, 5.8, P ≤ .01) compared with the Gleason 6 tumours. The model with Gleason 3 + 4 stratified by the percentage of positive cores significantly improved the predictive capacity of BRR and CSM. Conclusions: Fewer than 3 cores and a percentage < 33% of positive cores identifies a subgroup of Gleason 3 + 4 tumours with biological behaviour similar to Gleason 6 tumours. At 10 years, there were no differences in BRR and CSM between the 2 groups. These results provide evidence supporting active surveillance as an alternative for Gleason 3 + 4 tumours and low tumour extension in biopsy

[Nephroblastoma. Long-term experience in the multidisciplinary approach]. / Nefroblastoma. Experiencia a largo plazo en el abordaje multidisciplinario.

OBJECTIVES: Main objective: to perform a descriptive study of patients with nephroblastoma, diagnostic tests, medical and surgical treatment. Secondary objective: to evaluate the rate of relapse and 5-year survival and risk factors for relapse and death. MATERIALS AND METHODS: Retrospective study of patients with nephroblastoma treated according to the protocol of the SIOP-2001. Demographic variables, comorbidities and associated syndromes were collected. Other data were tumor location, size, extent and stage. The relapse rate and the development of other secondary tumors as well as the long-term survival were also studied. RESULTS: We collected 33 patients with nephroblastoma. A biopsy was performed in 7 patients (21.2%). The Kaplan-Meir curve for event-free survival (tumor recurrence) was 84% with a 95% CI = [0.73-0.98] and the Kaplan-Meier overall survival curve was 0.93 95% CI [0.85-1]. Recurrence occurred in all patients before the first year. CONCLUSIONS: Nephroblastoma is a tumor with a favorable prognosis. The unfavorable histology as well as advanced stages are factors of a poor prognosis. The follow-up must be exhaustive during the first year after the diagnosis.

OBJETIVOS: Objetivo principal: realizar un estudio descriptivo de los pacientes con nefroblastoma, las pruebas diagnósticas, el tratamiento médico y la actitud quirúrgica. Objetivo secundario: valorar la tasa de recidiva y de supervivencia a 5 años y los factores de riesgo para la recidiva y el fallecimiento. MATERIAL Y METODOS: Estudio retrospectivo de pacientes con nefroblastoma tratados según el protocolo de la SIOP-2001. Se recogieron las variables demográficas, comorbilidades y síndromes asociados. Otros datos fueron la localización del tumor, el tamaño, la extensión y el estadio. Se estudió también la tasa de recidiva y/o el desarrollo de otros tumores secundarios así como la supervivencia a largo plazo. RESULTADOS: Se recogieron 33 pacientes con nefroblastoma. En 7 pacientes (21,2%) se realizó una biopsia. La curva de Kaplan-Meir para la supervivencia libre de evento (recidiva tumoral) fue del 84% con un IC 95%= [0,73-0,98] y la curva de Kaplan-Meier de supervivencia global fue de 0,93 IC 95% [0,85-1]. La recidiva se produjo en todos los pacientes antes del primer año. CONCLUSIONES: El nefroblastoma es un tumor con buen pronóstico. La histología desfavorable así como estadios avanzados son factores de mal pronóstico. El seguimiento debe ser exhaustivo durante el primer año tras el diagnóstico.

Nefroblastoma. Experiencia a largo plazo en el abordaje multidisciplinario / Nephroblastoma. Long-term experience in the multidisciplinary approach

Objetivos. Objetivo principal: realizar un estudio descriptivo de los pacientes con nefroblastoma, las pruebas diagnósticas, el tratamiento médico y la actitud quirúrgica. Objetivo secundario: valorar la tasa de recidiva y de supervivencia a 5 años y los factores de riesgo para la recidiva y el fallecimiento. Material y métodos. Estudio retrospectivo de pacientes con nefroblastoma tratados según el protocolo de la SIOP-2001. Se recogieron las variables demográficas, comorbilidades y síndromes asociados. Otros datos fueron la localización del tumor, el tamaño, la extensión y el estadio. Se estudió también la tasa de recidiva y/o el desarrollo de otros tumores secundarios así como la supervivencia a largo plazo. Resultados. Se recogieron 33 pacientes con nefroblastoma. En 7 pacientes (21,2%) se realizó una biopsia. La curva de Kaplan-Meir para la supervivencia libre de evento (recidiva tumoral) fue del 84% con un IC 95%= [0,73-0,98] y la curva de Kaplan-Meier de supervivencia global fue de 0,93 IC 95% [0,85-1]. La recidiva se produjo en todos los pacientes antes del primer año. Conclusiones. El nefroblastoma es un tumor con buen pronóstico. La histología desfavorable así como estadios avanzados son factores de mal pronóstico. El seguimiento debe ser exhaustivo durante el primer año tras el diagnóstico (AU)

Material and methods. Retrospective study of patients with nephroblastoma treated according to the protocol of the SIOP-2001. Demographic variables, comorbidities and associated syndromes were collected. Other data were tumor location, size, extent and stage. The relapse rate and the development of other secondary tumors as well as the long-term survival were also studied. Results. We collected 33 patients with nephroblastoma. A biopsy was performed in 7 patients (21.2%). The Kaplan-Meir curve for eventfree survival (tumor recurrence) was 84% with a 95% CI = [0.73-0.98] and the Kaplan-Meier overall survival curve was 0.93 95% CI [0.85-1]. Recurrence occurred in all patients before the first year. Conclusions. Nephroblastoma is a tumor with a favorable prognosis. The unfavorable histology as well as advanced stages are factors of a poor prognosis. The follow-up must be exhaustive during the first year after the diagnosis (AU)

3+4 = 6? Implications of the stratification of localised Gleason 7 prostate cancer by number and percentage of positive biopsy cores in selecting patients for active surveillance. / ¿3 + 4 = 6? Implicaciones de la estratificación del cáncer de próstata localizado Gleason 7 por número y porcentaje de cilindros positivos de biopsia en la selección de pacientes para vigilancia activa.

OBJECTIVE: To determine whether the number and percentage of positive biopsy cores identify a Gleason 3+4 prostate cancer (PC) subgroup of similar biologic behaviour to Gleason 3+3. MATERIAL AND METHOD: An observational post-radical prostatectomy study was conducted of a cohort of 799 patients with localised low-risk (n=582, Gleason 6, PSA <10ng/ml and cT1c-2a) and favourable intermediate PC (n=217, Gleason 3+4, PSA ≤10 ng/ml and pT2abc). The Gleason 3+4 tumours were stratified by number (≤3 vs.>3) and by percentage of positive cores (≤33% vs. >33%). We analysed the tumours' association with the biochemical recurrence risk (BRR) and cancer-specific mortality (CSM). We conducted various predictive models using Cox regression and estimated (C-index) and compared their predictive capacity. RESULTS: With a median follow-up of 71 months, the BRR and CSM of the patient group with Gleason 3+4 tumours and a low number (≤3) and percentage (≤33%) of positive cores were not significantly different from those of the patients with Gleason 6 tumours. At 5 and 10 years, there were no significant differences in the number of biochemical recurrences, the probability of remaining free of biochemical recurrences, the number of deaths by PC or the probability of death by PC between the 2 groups. In contrast, the patients with Gleason 3+4 tumours and more than 33% of positive cores presented more deaths by PC than the patients with Gleason 6 tumours. At 10 years, the probability of CSM was significantly greater. This subgroup of tumours showed a significantly greater BRR (RR, 1.6; P=.02) and CSM (RR, 5.8, P≤.01) compared with the Gleason 6 tumours. The model with Gleason 3+4 stratified by the percentage of positive cores significantly improved the predictive capacity of BRR and CSM. CONCLUSIONS: Fewer than 3 cores and a percentage <33% of positive cores identifies a subgroup of Gleason 3+4 tumours with biological behaviour similar to Gleason 6 tumours. At 10 years, there were no differences in BRR and CSM between the 2 groups. These results provide evidence supporting active surveillance as an alternative for Gleason 3+4 tumours and low tumour extension in biopsy.

Litotricia por ondas de choque con música: un tratamiento menos doloroso y más satisfactorio / Shockwave lithotripsy with music: Less painful and more satisfactory treatment

Introducción: El objetivo del estudio fue determinar si escuchar música durante una sesión de litotricia extracorpórea por ondas de choque (LEOC) mejora el dolor de los pacientes. Material y método: Se realizó una aleatorización simple y oculta de pacientes con litiasis renales o ureterales que acudieron por vez primera a una sesión de LEOC de 7.000 ondas, entre septiembre y diciembre de 2014. Un grupo recibió música mientras que el otro no. Se registraron la edad, sexo, localización de la litiasis (renal/ureteral) y 2 cuestionarios pre-LEOC (cuestionario A) y post-LEOC (cuestionario B). Cada cuestionario contiene una pregunta sobre ansiedad y otra sobre dolor en escala Likert (0 al 10). El B, además, contiene otra sobre satisfacción y otra sobre comodidad (Likert 0 al 10). Otras variables fueron la frecuencia cardiaca, respiratoria, tensión arterial sistólica y diastólica en la onda 2.000, 5.000 y 7.000, causa de interrupción del procedimiento, petidina total (mg), analgesia secundaria, energía (J) y frecuencia (Hz). Se realizó un análisis bivariante con t de Student, X2/Fisher y un modelo de regresión lineal múltiple. Resultados: La muestra incluyó a 95 pacientes, con una media de edad de 52 años (±13), 35 mujeres (36,84%), 60 hombres (63,2%); 25 para litiasis ureterales (26,3%) y 70 (26,3%) para renales (73,7%). Un total de 42 pacientes (44,2%) pacientes recibieron música. No hubo diferencias entre las variables demográficas ni en las puntuaciones del cuestionario A. La satisfacción y el dolor fueron mejores en el cuestionario B con música. Conclusión: La música es capaz de disminuir el dolor y mejorar la satisfacción del paciente en los tratamientos con LEOC. Más estudios son necesarios para comprobar este efecto

Introduction: The objective of this study was to determine whether listening to music during a session of extracorporeal shockwave lithotripsy (ESWL) improves patients' pain. Material and method: A simple, blind randomisation was undertaken of patients with kidney and ureter stones attending an ESWL session of 7,000 waves for the first time, between September and December 2014. One group was given music and the other was not. The age, gender, location of stones (kidney/ureter) were recorded and 2 questionnaires: pre ESWL (questionnaire A) and postESWL (questionnaire B). Each questionnaire contained a question about anxiety and another question on pain on the Likert scale (0-10). Questionnaire B also had a question on satisfaction and comfort (Likert 0-10). Other variables included heart rate, respiratory rate, systolic and diastolic blood pressure on wave 2,000, 5,000 and 7,000, reason for halting the procedure, total pethidine (mg), secondary analgesia, energy (J) and frequency (Hz). Bivariate analysis using the Student's t-test, X2/Fisher test and a multiple linear regression model. Results: The sample comprised 95 patients, with a mean age of 52 (±13) years, 35 (36.84%) females, 60 (63.2%) males. A total of 25 (26.3%) ureter stones and 70 (73.7%) kidney stones. A number of 42 (44.2%) patients were given music. There were no differences between the demographic variables or questionnaire A scores. Satisfaction and pain were better on questionnaire B with music. Conclusion: Music can reduce pain and improve patient satisfaction in ESWL treatment. More studies are required to confirm this effect

¿Es la litotricia extracorpórea por ondas de choque en la actualidad un tratamiento vigente para el tratamiento de la litiasis urinaria? Revisión sistemática / Is extracorporeal shock wave lithotripsy a current treatment for urolithiasis? A systematic review

Introducción: Los avances tecnológicos han motivado un cambio en el manejo de la urolitiasis. Las técnicas endourológicas están cobrando mayor importancia, ya que son tratamientos altamente eficaces. El objetivo de este trabajo es responder a la cuestión de si la LEOCH sigue siendo una alternativa competitiva frente a otras modalidades terapéuticas. Adquisición de la evidencia: Se realizó una búsqueda bibliográfica de artículos publicados en los últimos 5 años. Fueron identificados 12 estudios aleatorizados y comparativos. Se evaluó la metodología y el resultado de las variables estudiadas. Se ha realizado una síntesis narrativa de los estudios incluidos. Para resumir las variables se ha utilizado la media y la desviación estándar en variables continuas, y para variables cualitativas el número absoluto y el porcentaje. Análisis de la evidencia: De los estudios revisados, 7 trabajos evaluaban los distintos tratamientos para litiasis renales y 5 para litiasis ureterales. A nivel renal, con LEOCH se alcanza una TLL a los 3 meses entre 91,5-33,33%, mientras que con otras técnicas endourológicas entre 100-90,4%, sin encontrar diferencias estadísticamente significativas en todos los estudios. A nivel ureteral con LEOCH se alcanza una TLL a los 3 meses entre 82,2-73,5%, mientras que con otras técnicas endourológicas entre 94,1-79%, sin encontrar diferencias estadísticamente significativas todos los estudios. Conclusión: Existe una falta de homogeneidad entre los estudios publicados. La LEOCH es un tratamiento mínimamente invasivo, que con una adecuada técnica y selección del paciente alcanza una elevada efectividad, manteniendo un papel importante en la actualidad

Introduction: Technological advances have prompted a change in the management of urolithiasis. Endourological techniques are gaining importance because they are highly effective treatments. The aim of this study was to answer the question of whether extracorporeal shock wave lithotripsy (ESWL) is still a competitive alternative compared with other therapeutic modalities. Acquisition of evidence: We conducted a literature search of articles published in the past 5 years. We identified 12 randomized and comparative studies and assessed the methodology and results of the study variables. We performed a narrative synthesis of the included studies. To summarise the variables, we used the mean and standard deviation for continuous variables and absolute numbers and percentages for the qualitative variables. Analysis of the evidence: Of the studies reviewed, 7 evaluated the various treatments for nephrolithiasis and 5 evaluated the treatments for ureteral lithiasis. At the renal level, a stone-free rate of 33.33-91.5% at 3 months was reached with ESWL, while a rate of 90.4-100% was achieved with the other endourological techniques, without finding statistically significant differences in the studies. At the ureteral level, a stone-free rate of 73.5-82.2% at 3 months was reached with ESWL, while a rate of 79-94.1% was achieved with the other endourological techniques, without finding statistically significant differences in the studies. Conclusion: There is a lack of homogeneity among the published studies. ESWL is a minimally invasive treatment that with an appropriate technique and patient selection achieves high effectiveness, thus maintaining an important role at this time

Shockwave lithotripsy with music: Less painful and more satisfactory treatment. / Litotricia por ondas de choque con música: un tratamiento menos doloroso y más satisfactorio.

INTRODUCTION: The objective of this study was to determine whether listening to music during a session of extracorporeal shockwave lithotripsy (ESWL) improves patients' pain. MATERIAL AND METHOD: A simple, blind randomisation was undertaken of patients with kidney and ureter stones attending an ESWL session of 7,000 waves for the first time, between September and December 2014. One group was given music and the other was not. The age, gender, location of stones (kidney/ureter) were recorded and 2questionnaires: pre ESWL (questionnaire A) and postESWL (questionnaire B). Each questionnaire contained a question about anxiety and another question on pain on the Likert scale (0-10). Questionnaire B also had a question on satisfaction and comfort (Likert 0-10). Other variables included heart rate, respiratory rate, systolic and diastolic blood pressure on wave 2,000, 5,000 and 7,000, reason for halting the procedure, total pethidine (mg), secondary analgesia, energy (J) and frequency (Hz). Bivariate analysis using the Student's t-test, X2/Fisher test and a multiple linear regression model. RESULTS: The sample comprised 95 patients, with a mean age of 52 (±13) years, 35 (36.84%) females, 60 (63.2%) males. A total of 25 (26.3%) ureter stones and 70 (73.7%) kidney stones. A number of 42 (44.2%) patients were given music. There were no differences between the demographic variables or questionnaire A scores. Satisfaction and pain were better on questionnaire B with music. CONCLUSION: Music can reduce pain and improve patient satisfaction in ESWL treatment. More studies are required to confirm this effect.

Is extracorporeal shock wave lithotripsy a current treatment for urolithiasis? A systematic review. / ¿Es la litotricia extracorpórea por ondas de choque en la actualidad un tratamiento vigente para el tratamiento de la litiasis urinaria? Revisión sistemática.

INTRODUCTION: Technological advances have prompted a change in the management of urolithiasis. Endourological techniques are gaining importance because they are highly effective treatments. The aim of this study was to answer the question of whether extracorporeal shock wave lithotripsy (ESWL) is still a competitive alternative compared with other therapeutic modalities. ACQUISITION OF EVIDENCE: We conducted a literature search of articles published in the past 5 years. We identified 12 randomized and comparative studies and assessed the methodology and results of the study variables. We performed a narrative synthesis of the included studies. To summarise the variables, we used the mean and standard deviation for continuous variables and absolute numbers and percentages for the qualitative variables. ANALYSIS OF THE EVIDENCE: Of the studies reviewed, 7 evaluated the various treatments for nephrolithiasis and 5 evaluated the treatments for ureteral lithiasis. At the renal level, a stone-free rate of 33.33-91.5% at 3 months was reached with ESWL, while a rate of 90.4-100% was achieved with the other endourological techniques, without finding statistically significant differences in the studies. At the ureteral level, a stone-free rate of 73.5-82.2% at 3 months was reached with ESWL, while a rate of 79-94.1% was achieved with the other endourological techniques, without finding statistically significant differences in the studies. CONCLUSION: There is a lack of homogeneity among the published studies. ESWL is a minimally invasive treatment that with an appropriate technique and patient selection achieves high effectiveness, thus maintaining an important role at this time.

Análisis de riesgos competitivos de mortalidad en cáncer de próstata tratado mediante prostatectomía radical / Competing risk analysis of mortality in prostate cancer treated with radical prostatectomy

Objetivo: Estimar el riesgo de muerte cáncer específica (MCE) frente al riesgo competitivo de mortalidad por otras causas (MOC) en pacientes con cáncer de próstata localizado (CaP-Lo) tratados mediante prostatectomía radical (PR). Material y método: Estudio observacional de una cohorte de 982 pacientes con CaP-Lo tratados mediante PR seleccionados de la base de datos del registro de CaP de nuestro servicio. Se ha realizado un análisis de riesgos competitivos calculando la probabilidad de MCE en presencia del riesgo competitivo por MOC. Se han construido curvas de incidencia acumulada y se han llevado a cabo estimaciones puntuales a 5, 10 y 15 años. El análisis se ha estratificado por edad (≤ 65 vs. > 65 años) y por grupos de riesgo: bajo (Gleason ≤ 6 y pT2abc); intermedio (Gleason = 7 y pT2abc) y elevado (Gleason 8-10 o pT3ab). Resultados: Con una mediana de seguimiento de 60 meses, la probabilidad global de fallecer por CaP fue del 3,5% y la de fallecer por otras causas del 9%. Se evidenció un efecto competitivo por MOC. El riesgo de MOC fue de casi 3 veces superior al de MCE. Este efecto se mantuvo para todos los grupos de riesgo, si bien su magnitud disminuyó progresivamente conforme aumentó el nivel del grupo de riesgo. A 10 años, la MCE fue únicamente de 0, 1 y 2% para los grupos de riesgo bajo, intermedio y elevado respectivamente, mientras que la probabilidad MOC fue de 4, 4 y 10%. El riesgo de fallecer se evidenció a partir de 10 años de seguimiento y fue más frecuente por otras causas no atribuibles al CaP y en pacientes de edad > 65 años. Conclusiones: El beneficio de la PR puede estar sobreestimado, ya que el riesgo de MOC es superior al de MCE independientemente del grupo de edad y grupo de riesgo, sobre todo a partir de los 10 años de seguimiento. Lo único que varía es la magnitud de la razón MCE/MOC. Esta información puede ayudar a decidir el tratamiento activo en pacientes con CaP-Lo y corta expectativa de vida

Objective: To determine the risk of cancer-specific mortality (CSM) versus the competing risk of mortality by other causes (MOC) in patients with localised prostate cancer (LPC) treated with radical prostatectomy (RP). Material and method: An observational cohort study of 982 patients with LPC treated with RP selected from our department’s PC registry database. A competing risk analysis was performed, calculating the probability of CSM in the presence of the competing risk of MOC. Cumulative incidence curves were constructed, and point estimates were performed at 5, 10 and 15 years. The analysis was stratified by age (≤ 65 vs. > 65 years) and risk group: low (Gleason score ≤ 6 and pT2abc); intermediate (Gleason score of 7 and pT2abc) and high (Gleason score of 8-10 or pT3ab). Results: With a median follow-up of 60 months, the overall probability of dying from PC was 3.5%, and the probability of dying from other causes was 9%. A competing effect for MOC was observed. The risk of MOC was almost 3 times greater than that of CSM. This effect remained for all risk groups, although its magnitude decreased progressively according to the risk group level. At 10 years, CSM was only 0%, 1% and 2% for the low, intermediate and high-risk groups, respectively, while the likelihood of MOC was 4%, 4% and 10%, respectively. The mortality risk was shown after 10 years of follow-up and was higher for other causes not attributable to PC and for patients older than 65 years. Conclusions: The benefit of RP might be overestimated, given that the risk of MOC is greater than that of CSM, regardless of the age group and risk group, especially after 10 years of followup. The only parameter that varied was the magnitude of the CSM/MOC ratio. This information could help in choosing the active treatment for patients with LPC and short life expectancies

Más allá del nomograma de Briganti: individualización de la linfadenectomía utilizando la biopsia selectiva del ganglio centinela durante la prostatectomía radical por cáncer de próstata / Beyond the Briganti nomogram: Individualisation of lymphadenectomy using selective sentinel node biopsy during radical prostatectomy for prostate cancer

Objetivo: Validar la técnica de biopsia selectiva de ganglio centinela en el diagnóstico y estadificación del cáncer de próstata de riesgo intermedio y alto mediante comparación con la linfadenectomía extendida convencional (eLFD) en un estudio prospectivo longitudinal y comparativo. Métodos: Hemos aplicado la técnica a 45 pacientes. Previa inyección intraprostática de 99mTc-nanocoloide y SPECT-TC preoperatoria, se han extraído los ganglios centinela guiados con gammacámara portátil Sentinella® y sonda detectora de rayos gamma laparoscópica. Se completó la eLFD para establecer el valor predictivo negativo de la técnica. Resultados: La SPECT-TC mostró depósitos del radiotrazador fuera del territorio de la eLFD en el 73% de los pacientes y la gammasonda laparoscópica en el 60%. La media de focos activos por paciente en la SPECT-TC fue de 4,3 y con gammasonda laparoscópica de 3,2. La media de ganglios linfáticos centinelas extraídos fue 4,3 (0-14), el 26% fuera del territorio de la eLFD. En 10 pacientes (22%) se encontraron ganglios metastásicos, 6/40 (15%) cuando la prostatectomía fue el tratamiento primario. En todos los casos con ganglios metastásicos hubo, al menos, un ganglio centinela positivo. Se encontraron ganglios centinela metastásicos fuera del territorio de la eLFD en 3/10 pacientes (30%). La sensibilidad fue del 100%, la especificidad del 94,73%, el valor predictivo positivo del 81,81% y el valor predictivo negativo del 100%. Conclusión: La biopsia selectiva del ganglio centinela es superior a la eLFD en el diagnóstico de afectación ganglionar, y puede evitar la eLFD cuando no se encuentren ganglios centinela metastásicos (85%), con las consecuentes ventajas funcionales

Objective: To validate the technique of selective sentinel node biopsy for diagnosing and staging intermediate to high-risk prostate cancer by comparing the technique with conventional extended lymphadenectomy (eLFD) in a prospective, longitudinal comparative study. Methods: We applied the technique to 45 patients. After an intraprostatic injection of 99mTc-nanocolloid and preoperative single-photon emission computed tomography (SPECT/CT), we extracted the sentinel lymph nodes, guided by a portable Sentinella® gamma camera and a laparoscopic gamma-ray detection probe. The eLFD was completed to establish the negative predictive value of the technique. Results: SPECT/CT showed radiotracer deposits outside the eLFD territory in 73% of the patients and the laparoscopic gamma probe in 60%. The mean number of active foci per patient was 4.3 in the SPECT/CT and 3.2 in the laparoscopic gamma probe. The mean number of extracted sentinel lymph nodes was 4.3 (0-14), with 26% outside the eLFD territory. The lymph nodes were metastatic in 10 patients (22%), 6/40 (15%) when the prostatectomy was the primary treatment. In all cases with metastatic lymph nodes, there was at least one positive sentinel node. Metastatic sentinel lymph nodes were found outside the eLFD territory in 3/10 patients (30%). The sensitivity was 100%, the specificity was 94.73%, the positive predictive value was 81.81%, and the negative predictive value was 100%. Conclusion: Selective sentinel node biopsy is superior to eLFD for diagnosing lymph node involvement and can avoid eLFD when metastatic sentinel lymph nodes are not found (85%), with the consequent functional advantages

Competing risk analysis of mortality in prostate cancer treated with radical prostatectomy. / Análisis de riesgos competitivos de mortalidad en cáncer de próstata tratado mediante prostatectomía radical.

OBJECTIVE: To determine the risk of cancer-specific mortality (CSM) versus the competing risk of mortality by other causes (MOC) in patients with localised prostate cancer (LPC) treated with radical prostatectomy (RP). MATERIAL AND METHOD: An observational cohort study of 982 patients with LPC treated with RP selected from our department's PC registry database. A competing risk analysis was performed, calculating the probability of CSM in the presence of the competing risk of MOC. Cumulative incidence curves were constructed, and point estimates were performed at 5, 10 and 15 years. The analysis was stratified by age (≤65 vs. >65 years) and risk group: low (Gleason score ≤6 and pT2abc); intermediate (Gleason score of 7 and pT2abc) and high (Gleason score of 8-10 or pT3ab). RESULTS: With a median follow-up of 60 months, the overall probability of dying from PC was 3.5%, and the probability of dying from other causes was 9%. A competing effect for MOC was observed. The risk of MOC was almost 3 times greater than that of CSM. This effect remained for all risk groups, although its magnitude decreased progressively according to the risk group level. At 10 years, CSM was only 0%, 1% and 2% for the low, intermediate and high-risk groups, respectively, while the likelihood of MOC was 4%, 4% and 10%, respectively. The mortality risk was shown after 10years of follow-up and was higher for other causes not attributable to PC and for patients older than 65years. CONCLUSIONS: The benefit of RP might be overestimated, given that the risk of MOC is greater than that of CSM, regardless of the age group and risk group, especially after 10years of follow-up. The only parameter that varied was the magnitude of the CSM/MOC ratio. This information could help in choosing the active treatment for patients with LPC and short life expectancies.

Beyond the Briganti nomogram: Individualisation of lymphadenectomy using selective sentinel node biopsy during radical prostatectomy for prostate cancer. / Más allá del nomograma de Briganti: individualización de la linfadenectomía utilizando la biopsia selectiva del ganglio centinela durante la prostatectomía radical por cáncer de próstata.

OBJECTIVE: To validate the technique of selective sentinel node biopsy for diagnosing and staging intermediate to high-risk prostate cancer by comparing the technique with conventional extended lymphadenectomy (eLFD) in a prospective, longitudinal comparative study. METHODS: We applied the technique to 45 patients. After an intraprostatic injection of 99mTc-nanocolloid and preoperative single-photon emission computed tomography (SPECT/CT), we extracted the sentinel lymph nodes, guided by a portable Sentinella® gamma camera and a laparoscopic gamma-ray detection probe. The eLFD was completed to establish the negative predictive value of the technique. RESULTS: SPECT/CT showed radiotracer deposits outside the eLFD territory in 73% of the patients and the laparoscopic gamma probe in 60%. The mean number of active foci per patient was 4.3 in the SPECT/CT and 3.2 in the laparoscopic gamma probe. The mean number of extracted sentinel lymph nodes was 4.3 (0-14), with 26% outside the eLFD territory. The lymph nodes were metastatic in 10 patients (22%), 6/40 (15%) when the prostatectomy was the primary treatment. In all cases with metastatic lymph nodes, there was at least one positive sentinel node. Metastatic sentinel lymph nodes were found outside the eLFD territory in 3/10 patients (30%). The sensitivity was 100%, the specificity was 94.73%, the positive predictive value was 81.81%, and the negative predictive value was 100%. CONCLUSION: Selective sentinel node biopsy is superior to eLFD for diagnosing lymph node involvement and can avoid eLFD when metastatic sentinel lymph nodes are not found (85%), with the consequent functional advantages.