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Analizar los resultados oncológicos más relevantes en el tratamiento mediante prostatectomía radical (PR) en el cáncer de próstata de alto riesgo (CPAR) en un hospital oncológico.

Comparar diferentes opciones de tratamiento conservador del tumor vesical no músculo-invasivo (TVNMI) T1 de grado alto. El bacilo de Calmette-Guérin (BCG) es el tratamiento intravesical preferido para los tumores T1 de grado alto; sin embargo, algunos expertos aún cuestionan la necesidad de la BCG de mantenimiento.

Recientes estudios han propuesto que los ARNm FXYD3 y KRT20 cuantificados por qrtPCR en material parafinado podrían ser biomarcadores capaces de detectar los ganglios portadores de micrometástasis que se escapaban al análisis convencional por hematoxilina-eosina (HE). Se decidió hacer un estudio de validación en ganglios de pacientes a los que se les practicó una cistectomía radical.

Cuantificar el grado de dolor que sufren los pacientes sometidos a biopsia transrectal de próstata ecodirigida en la práctica clínica habitual, y evaluar qué factores clínicos se encuentran asociados a un mayor dolor.

La salud ósea se ve comprometida en los pacientes con cáncer de próstata por la avanzada edad media al diagnóstico, los tratamientos de supresión androgénica y el desarrollo de metástasis óseas. Revisamos la literatura con la finalidad de actualizar el estado del arte sobre su incidencia, prevención y manejo.

El carcinoma urotelial de vejiga no músculo-invasivo (CVNMI) se caracteriza por eventos repetidos en forma de recidiva tumoral o la aparición de progresión tumoral. La aplicación del modelo de Cox para analizar estos eventos no es válido, ya que los tiempos entre recurrencias de un mismo paciente pueden estar fuertemente correlacionados, y se requiere otro tipo de modelización matemática. El objetivo del estudio es aplicar nuevos modelos matemáticos apropiados a las características biológicas del CVNMI.

Conocer la información necesaria para reproducir los resultados de la literatura en vigilancia activa (VA) en cáncer de próstata (CaP) en nuestro propio centro, de tal forma que dicha información sea objetiva y se le pueda dar al paciente de forma fehaciente. Contemplamos estudiar el porcentaje de pacientes candidatos a VA y que la escogen en nuestro ambiente, los datos de infraestadificación, infragradación y predicción de CaP insignificante, depurar el poder predictivo de distintas variables clínicas para mejorar nuestros criterios de selección y analizar los resultados de nuestros pacientes en VA.

relacionar la expresión inmunohistoquímica (IHQ) de la densidad microvascular (DMV) y de la anhidrasa carbónica IX (ACIX) con los tipos histológicos de carcinoma renal (CR) y con su progresión.

We evaluate the safety and efficacy of conservative elective treatment of upper urinary tract tumors, and determine predictive factors for recurrence and progression to optimize indications of this type of treatment.

We established the prognostic and therapeutic implications of panurothelial involvement in patients with superficial bladder tumors for optimizing therapeutic approaches in those at risk for panurothelial involvement.

We prospectively validated the association of local tumor stage and grade as a predictive factor for occult lymph node micrometastasis in patients with penile carcinoma and clinically negative lymph nodes.

PurposeWe analyze the impact of a single mitomycin C instillation in patients with low risk superficial bladder cancer with short and long-term followup.Materials and MethodsA total of 131 patients with low risk superficial bladder cancer were included in a prospective randomized controlled trial. All patients had a 3 cm. or less single, papillary, primary or recurrent tumor and were disease-free for more than 1 year. Patients with muscular invasion, G3 tumor or bladder carcinoma in situ on pathological examination were excluded from study. The tumor was completely resected before patients were randomized into 2 arms of no further treatment (control group) and a single immediate instillation of 30 mg. mitomycin C (mitomycin C group). Recurrences were considered early within the first 2 years of followup.ResultsAt 24-month followup the recurrence-free interval was significantly increased, and recurrence, and recurrence and tumor per year rates were decreased in the mitomycin C compared to the control group. However, at long-term followup these differences were not statistically significant and the recurrence-free interval curves were parallel. A shorter hospital stay and catheterization period were noted in the mitomycin C group compared to the control group, which were not significant. Early recurrences were concentrated in the first year in the control but not in the mitomycin C group. A significant relationship between early and late recurrences was found in the mitomycin C but not in the control group.ConclusionsOur analysis confirms the positive effect of a single immediate mitomycin C instillation in patients with low risk superficial bladder cancer. This benefit is limited to early recurrence and is not maintained with long-term followup. Thus, this approach is an alternative to observation or endovesical chemotherapy. Our study also suggests that cell implantation as a mechanism of early recurrence can be controlled with a single mitomycin C instillation.

PurposeWe analyzed the long-term results of radical transurethral resection for the treatment of a large series of patients with muscle infiltrating bladder cancer entered into a prospective study to determine progression predictive factors.Materials and MethodsThe study included 133 patients with invasive bladder cancer treated by radical transurethral resection who had negative biopsies of the muscle layer of the tumor bed. Followup was more than 5 years for all subjects and more than 10 years in 59 (44.4%). A comparative nonrandomized study was performed of a control group of 76 patients with invasive pathological stage pT2-3a, N0-3 bladder cancer treated by cystectomy. In those patients treated by radical transurethral resection univariate and multivariate analyses were performed to establish clinical progression predictive factors.ResultsAt 5 and 10 years of followup cause specific survival rates were 80.5 and 74.5%, and bladder preservation rates were 82.7 and 79.6%, respectively. No significant difference was noted in terms of cause specific survival, with respect to the control group. The initial presence of associated bladder carcinoma in situ was the only independent progression predictive factor.ConclusionsFor patients with invasive bladder cancer radical transurethral resection is justified when the tumor is clinically limited to the muscular layer and when all biopsies of the periphery and depth of the tumor bed show muscular tissue negative for tumor cells. Patients with initial associated bladder carcinoma in situ should not be excluded from this treatment but endovesical bacillus Calmette-Guerin immunotherapy should be administered and a closer followup is recommended.

The prognostic value of prostate involvement in patients with superficial bladder cancer was analyzed.

The biological and therapeutic implications of extravesical involvement in patients with bladder carcinoma in situ were analyzed.

A prospective study was done to evaluate treatment of patients with muscle-infiltrating bladder cancer by transurethral resection exclusively. Inclusion criteria for this study were histological confirmation of muscular bladder infiltration, endoscopic radical transurethral resection, disappearance of hardened areas after transurethral resection, and negative biopsies of the depth and periphery of the tumor bed. The study began in April 1981. The average followup in series 1 (April 1981 to December 1986, 59 patients) was 55.4 months. Actually, of the patients 31 (52.5%) are without evidence of recurrence and 28 (47.5%) have recurrent disease. Of the latter patients 11 (18.6%) had invasive bladder recurrence, including 7 (11.9%) who had recurrence at 3 months, which indicated clinical understaging. Three patients (5%) had metastases without bladder tumor. The remaining 14 patients (23.7%) had superficial bladder recurrence. The overall survival rate was 83% (49 of 59 patients) and 43 patients (72.8%) still retain the bladder. The present data are confirmed by the results of series 2 (December 1986 to August 1989). Therefore, the data would justify conservative management in a selected group of patients with muscle-infiltrating bladder cancer.

IntroductionAs we reported previously (Eur J Cancer 1991;27(SI2): 107; Ann Oncol 1994;5(S8):66) treatment with CBDCA, MTX and VBL is as effective as M-VAC in advanced bladder cancer with long-term survival and can be safely given in an outpatient basis and in pts with impaired renal function. We designed a multicentric study, randomizing pts to receive NCT followed by cistectomy (branch A) or cistectomy alone (branch B). We present the results of pts treated in one institution.