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Inicio Actas Urológicas Españolas Prostatectomía radical en adenocarcinoma de próstata estadio pt3c
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Vol. 24. Issue 6.
Pages 468-474 (January 2000)
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Vol. 24. Issue 6.
Pages 468-474 (January 2000)
Prostatectomía radical en adenocarcinoma de próstata estadio pt3c
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J.J. Zudaire Bergera1, J. López Ferrándiz, D. Sánchez Zalabardo, J. Arocena García-Tapia, G. Sanz Pérez, F. Díez Caballero, D. Rosell Costa, J.E. Robles García, J.M. Berián Polo
Departamento de Urología. Clínica Universitaria de Navarra. Universidad de Navarra. Pamplona (Navarra)
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Resumen
Objetivos

Valorar la eficacia de la cirugía en pacientes pT3c; saber si constituye un factor de influencia independiente en la supervivencia y los factores clínicos de predicción diagnóstica.

Material Y Métodos

Se estudian 45 pacientes pT3c (TNM 1982) de una serie de 220 pacientes con cáncer de próstata T1-T2 sometidos a prostatectomía radical. Media y mediana de seguimiento: 42 y 36 meses respectivamente.

Resultados

El grupo pT3 constituye el 20% (45/220) de los pacientes. Tiene un PSA medio (25 ± 2 ng/ml) significativamente más elevado (0,001), peor Gleason (0,0002) y estadio clínico (0,0003), mayor afectación de márgenes (0,0007), progresión bioquímica (0,02), local (0,05) y metastásica (0,001). Los factores de influencia independiente son: PSA > 20 ng/ml; T2bc y Gleason 7-10. Con ellos se forman tres grupos de riesgo: a) Grupo I (0-1 variable desfavorable): riesgo de afectación de vesícula seminal 7%; Grupo II (2 variables desfavorables): riesgo 47%; Grupo III (3 variables desfavorables): riesgo 61%.

Supervivencia Libre de progresión: es significativamente menor que la de los pT2 (58 ± 8% vs 66 ± 6% en 5 años) (0,002), pero similar a la de los pT3ab (0,91).

La afectación de vesícula seminal no es un factor de influencia independiente (estudio multivariado de Cox). Los factores influyentes son PSA, Gleason y estadio clínico.

Conclusiones

Los pT3c no son un grupo de influencia independiente en la supervivencia libre de progresión. Evidencian peor supervivencia libre de progresión que los pT2 e igual que los pT3ab. Su mal pronóstico depende de su asociación a factores clínico-patológicos de influencia negativa.

Palabras clave:
Adenocarcinoma de próstata
Prostatectomía radical
Estadio pT3c
Supervivencia libre de progresión bioquímica
Abstract
Objectives

To assess the efficacy of surgery in pT3c patients; to discern whether this is an independent influential factor for survival and clinical factor for diagnostic prediction.

Material And Methods

Forty-five pT3c (TNM 1982) patients from a cohort of 220 subjects with T1-T2 prostate cancer who underwent radical prostatectomy. Mean and median follow-up: 42 and 36 months, respectively.

Results

pT3 stage accounts for 20% (45/220) patients. They display a significantly higher mean PSA (25 ± 2 ng/ml) (0.001), worse Gleason (0.0002) and clinical stage (0.0003), greater margins involvement (0.0007), and biochemical (0.02), local (0.05) and metastatic (0.001) progression. Independent influential factors are: PSA > 20 ng/ml; T2bc and Gleason 7-10. From these values patients can be divided into 3 risk groups: a) Group I (0-1 unfavourable variables): risk of seminal vesicle involvement 7%; Group II (2 unfavourable variables): risk 47%; Group III (3 unfavourable variables): risk 61%.

Progression-free survival: significantly lower than patients with pT2 (58 ± 8% vs 66 ± 6% at 5 years) (0.002), but similar to those with pT3ab (0.91).

Seminal vesicle involvement is not an independent influential factor (Cox's multivariate study). Influential factors are PSA, Gleason and clinical stage.

Conclusions

pT3c tumours are not an independently influential group in progression-free survival. Progressionfree survival is lower than pT2 but similar to pT3ab. Their poor prognosis is dependent on association to negatively influential clinico-pathological factors.

Key words:
Prostate adenocarcinoma
Radical prostatectomy
pT3c stage
Biochemical progression-free survival

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