Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 50
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Gan To Kagaku Ryoho ; 41(13): 2591-7, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25596054

RESUMEN

The efficacy of combined androgen blockade therapy consisting of flutamide, a nonsteroidal antiandrogen, plus an LH-RH agonist (F-CAB) was investigated in Japanese patients with untreated advanced prostate cancer (clinical stage D). The primary endpoint was overall survival (OS), while the secondary endpoints were disease-specific survival (DSS), progression- free survival (PFS), reduction of prostate specific antigen (PSA), anti-tumor effects, quality of life (QOL), and adverse drug reactions (ADRs). As of the median observation period of 1,293.5 days, the F-CAB significantly prolonged DSS and PFS relative to LH-RH monotherapy (log rank test: p=0.0343 and 0.0017, respectively). The results of this study indicate the potential of F-CAB as a useful treatment for untreated advanced prostate cancer. Although additional study is considered necessary to determine the daily dosage of flutamide, the anti-tumor effects obtained from this study indicated that 375 mg/day is appropriate as a daily dosage, and 250 mg/day can also be considered when concern exists regarding the occurrence of complications or the development of ADRs, including liver function disorders. [Funded by Nippon Kayaku Co., Ltd., Japic CTI-050101].


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Terapia de Reemplazo de Hormonas , Neoplasias de la Próstata/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Antagonistas de Andrógenos/administración & dosificación , Antagonistas de Andrógenos/efectos adversos , Andrógenos/metabolismo , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Flutamida/administración & dosificación , Flutamida/efectos adversos , Humanos , Masculino , Persona de Mediana Edad
2.
Jpn J Clin Oncol ; 41(1): 17-24, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20965941

RESUMEN

OBJECTIVE: To assess the efficacy and safety of everolimus in Japanese patients with metastatic renal cell carcinoma. METHODS: A subgroup analysis of the pivotal Phase III, randomized, double-blind, placebo-controlled trial of everolimus 10 mg/day in patients with disease progression after treatment with sorafenib, sunitinib or both assessed outcomes in Japanese participants. Results were compared with those for the overall study population. RESULTS: The final trial analysis included 24 Japanese patients (everolimus, n= 15; placebo, n = 9). Median progression-free survival in the Japanese subpopulation was 5.75 months (95% confidence interval, 4.90 months to not reached) with everolimus and 3.61 months (95% confidence interval, 1.91-9.03 months) with placebo (hazard ratio, 0.19; 95% confidence interval, 0.05-0.83). Median overall survival was not reached with everolimus and was 14.9 months (95% confidence interval, 11.0-16.8 months) with placebo (hazard ratio, 0.30; 95% confidence interval, 0.07-1.27). Overall, efficacy and safety were similar when comparing the Japanese and overall populations. In the Japanese subpopulation, the most common adverse events with everolimus were stomatitis, infections and rash. Four Japanese subjects (27%) developed Grade 1 (n = 2) or 2 (n = 2) pneumonitis (all reversible and allowing for continuation of therapy, after interruption, steroids and dose reduction for both Grade 2 cases), with a lower pneumonitis incidence of 14% in the overall population (albeit associated with a Grade 3 incidence of 4%). CONCLUSIONS: These findings suggest that the demonstrated benefits of everolimus in the overall trial population are similar in Japanese patients with metastatic renal cell carcinoma.


Asunto(s)
Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Carcinoma de Células Renales/tratamiento farmacológico , Neoplasias Renales/tratamiento farmacológico , Sirolimus/análogos & derivados , Adulto , Anciano , Carcinoma de Células Renales/secundario , Supervivencia sin Enfermedad , Método Doble Ciego , Esquema de Medicación , Everolimus , Femenino , Humanos , Inmunosupresores/administración & dosificación , Inmunosupresores/efectos adversos , Incidencia , Cooperación Internacional , Japón , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Neumonía/epidemiología , Estudios Prospectivos , Sirolimus/administración & dosificación , Sirolimus/efectos adversos , Resultado del Tratamiento
3.
J Urol ; 183(3): 952-7, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20083260

RESUMEN

PURPOSE: Pathological assessment of radical prostatectomy specimens has not been uniform among pathologists. We investigated interobserver variability of radical prostatectomy specimen reviews between local and central pathologists. MATERIALS AND METHODS: We collated data from 50 institutions on 2,015 patients with cT1c-3 prostate cancer who underwent radical prostatectomy between 1997 and 2005. All radical prostatectomy specimens were retrospectively reevaluated by a central uropathologist. Gleason score, extracapsular extension, seminal vesicle invasion, lymph node involvement, positive surgical margin, year of diagnosis and pathology volume were recorded. RESULTS: The exact concordance rate of Gleason score between local and central review was 54.8%, and under grading and over grading rates at local review were 25.9% and 19.2%, respectively. Spearman's rank correlation coefficient was 0.61 for local and central radical prostatectomy Gleason score. The exact concordance rate of Gleason score 8-10 at local review was significantly lower than that of Gleason score 5-6, 3 + 4 and 4 + 3 at local review (p = 0.011, <0.001 and 0.006). Exact concordance rates between local and central review for extracapsular extension, seminal vesicle invasion, lymph node involvement and positive surgical margin were 82.5%, 97.6%, 99.6% and 87.5%, respectively. High volume institutions and recently diagnosed cohorts showed significantly higher exact concordance rates between local and central review for radical prostatectomy Gleason score and other pathological features (all p <0.001). CONCLUSIONS: High volume institutions and recent series show higher concordance between local and central review of radical prostatectomy pathology. However, concordance for high grade Gleason score, extracapsular extension and surgical margin status remains poor. Radical prostatectomy specimens should be reevaluated in a multi-institutional study for more accurate pathological data.


Asunto(s)
Neoplasias de la Próstata/patología , Adulto , Anciano , Anciano de 80 o más Años , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Patología/estadística & datos numéricos , Prostatectomía , Neoplasias de la Próstata/cirugía , Estudios Retrospectivos
4.
Oncology ; 78(5-6): 323-8, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20699624

RESUMEN

OBJECTIVES: This study was conducted to evaluate the efficacy and safety of S-1, an oral fluoropyrimidine derivative, in Japanese patients with castration-resistant prostate cancer (CRPC). The primary endpoint was prostate-specific antigen (PSA) response. METHODS: In this open-label phase II study, S-1 was started at a dose of 80, 100 or 120 mg daily based on body surface area (BSA) for 28 days, followed by 14 days of rest. Patients with histological proof of prostate cancer refractory to hormonal therapies were eligible. Patients who received prior chemotherapy were excluded. All patients provided written informed consent. To observe 20% confirmed PSA response, 33 assessable patients were needed. Treatment was continued until disease progression or the development of intolerable toxicity. RESULTS: A total of 35 eligible patients were enrolled. The median number of treatment cycles was 3. PSA response was observed in 8 patients (22.9%, 90% CI 11.9-37.5), including 3 in which (8.6%) the PSA level normalized. The median overall survival was 25.4 months. The most common treatment-related grade 3 toxicity was anorexia (14.3%). There was no death during the study. CONCLUSION: S-1 monotherapy is active against castration-resistant prostate cancer and has acceptable toxicity.


Asunto(s)
Antimetabolitos Antineoplásicos/uso terapéutico , Ácido Oxónico/uso terapéutico , Neoplasias de la Próstata/tratamiento farmacológico , Tegafur/uso terapéutico , Adulto , Anciano , Alanina Transaminasa/sangre , Antagonistas de Andrógenos/uso terapéutico , Anorexia/inducido químicamente , Antimetabolitos Antineoplásicos/toxicidad , Aspartato Aminotransferasas/sangre , Bilirrubina/sangre , Superficie Corporal , Relación Dosis-Respuesta a Droga , Combinación de Medicamentos , Tolerancia a Medicamentos , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Orquiectomía , Ácido Oxónico/toxicidad , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/mortalidad , Neoplasias de la Próstata/patología , Seguridad , Tegafur/toxicidad , Resultado del Tratamiento
5.
Int J Urol ; 17(9): 759-66, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20604814

RESUMEN

OBJECTIVES: We carried out a prospective, randomized, controlled trial to investigate the efficacy and safety of both induction and maintenance therapy with intravesical instillation of bacillus Calmette-Guérin (BCG) for high-risk non-muscle invasive bladder cancer (NMIBC). METHODS: Intravesical instillation of 80 mg Tokyo strain was given to patients with high-risk NMIBC, including carcinoma in situ (CIS), once weekly for eight consecutive weeks as induction therapy. Patients who achieved complete response (CR) were randomly assigned to either the maintenance group or the observation group. RESULTS: A total of 90 patients were enrolled. After induction therapy, 75% of the patients achieved CR and 53 of them were enrolled in the randomized comparative phase. A total of four maintenance instillations were given. Median follow-up was 26.5 and 28.7 months after randomization in the maintenance and the observation group, respectively. Although it was not statistically significant, the 2-year recurrence-free survival rate in the maintenance group (95.8%) was higher than that in the observation group (74.1%, P = 0.078). Univariate analysis identified maintenance therapy as a significant factor influencing recurrence. During induction therapy, 82.2% of patients experienced urination-related adverse drug reactions, but most events were not serious. There were fewer adverse drug reactions with maintenance therapy than with induction therapy. Neither induction therapy nor maintenance therapy reduced patients' quality of life (QOL). CONCLUSIONS: These findings show high levels of efficacy and safety of BCG induction treatment for high-risk NMIBC, and suggest that the number of maintenance instillations could probably be reduced without reducing treatment efficacy or influencing QOL.


Asunto(s)
Adyuvantes Inmunológicos/administración & dosificación , Vacuna BCG/administración & dosificación , Carcinoma in Situ/tratamiento farmacológico , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Administración Intravesical , Anciano , Carcinoma in Situ/patología , Femenino , Humanos , Masculino , Estadificación de Neoplasias , Estudios Prospectivos , Neoplasias de la Vejiga Urinaria/patología
6.
Int J Urol ; 16(9): 756-9, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19659679

RESUMEN

OBJECTIVES: To report the long-term outcome of surveillance for stage I seminoma at a single institution in Japan. METHODS: A retrospective review of medical records of 64 patients who underwent orchiectomy between January 1982 and December 2005 was carried out. All of them were managed by surveillance for stage I seminoma. RESULTS: Median follow-up time was 123.8 months. Of the 64 patients, seven developed relapse. Four relapses occurred within the first year after orchiectomy, but three occurred over 4 years after orchiectomy. The actuarial relapse-free rates at 5, 10, and 15 years were 92.1%, 90.0%, and 86.0%, respectively. All patients received salvage chemotherapy at relapse. Four of these seven patients were alive without evidence of disease. One patient died of seminoma and one was alive with this disease. The remaining one patient died of leukemia without secondary relapse of seminoma. T classification was a statistically significant (P = 0.028) risk factor for relapse on univariate analysis. In T1 patients, relapse-free rates at 5, 10, and 15 years were all 97.1%, whereas in T2/T3 patients the corresponding relapse-free rates were 86.4%, 82.1%, and 71.8%, respectively. CONCLUSIONS: The relapse-free rate in the present study was similar to previous reports. Late relapse should be considered during surveillance.


Asunto(s)
Orquiectomía/efectos adversos , Seminoma/cirugía , Neoplasias Testiculares/cirugía , Adulto , Anciano , Supervivencia sin Enfermedad , Humanos , Japón , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Orquiectomía/estadística & datos numéricos , Vigilancia de la Población , Estudios Retrospectivos , Factores de Riesgo , Seminoma/clasificación , Seminoma/patología , Tasa de Supervivencia , Neoplasias Testiculares/clasificación , Neoplasias Testiculares/patología , Resultado del Tratamiento , Adulto Joven
7.
Int J Urol ; 16(11): 887-93, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19863625

RESUMEN

OBJECTIVES: To review our series of testicular germ cell tumors with brain metastases and to establish an optimal treatment strategy for them. METHODS: Twenty-seven cases of testicular germ cell tumors from three institutions were retrospectively reviewed. RESULTS: Twenty-six were non-seminomatous tumors and only one was a seminoma. Based on the International Germ Cell Consensus Classification, two cases were classified as good prognosis, seven as intermediate prognosis and 18 as poor prognosis. Chemotherapy was carried out in all patients. Additionally, whole-brain radiotherapy was performed in 10 cases, stereotactic radiosurgery in six, whole-brain radiotherapy combined with stereotactic radiosurgery in three and complete surgical resection in five. Three patients received chemotherapy only. Cancer-specific 5- and 10-year survival rates were both 35.9%. The prognosis of those with brain metastases at the time of diagnosis tended to be better than those developing brain metastases during treatment. Those with a single brain metastasis showed significantly better survival than those with multiple brain metastases. No other significant prognostic factor was found at multivariate analysis. CONCLUSION: Testicular germ cell tumors with brain metastases can be managed with the combination of whole-brain radiotherapy, stereotactic radiotherapy, and/or surgical resection in combination with chemotherapy.


Asunto(s)
Neoplasias Encefálicas/secundario , Neoplasias de Células Germinales y Embrionarias/secundario , Neoplasias Testiculares/patología , Adulto , Humanos , Masculino , Estudios Retrospectivos , Adulto Joven
8.
Hinyokika Kiyo ; 55(11): 691-4, 2009 Nov.
Artículo en Japonés | MEDLINE | ID: mdl-19946186

RESUMEN

The patient, a 55-year-old man, had undergone surgery for retroperitoneal paraganglioma at the age of 45. In February 2006, he visited our hospital with the chief complaint of metastatic tumors detected by a thorough checkup. Computed tomographic (CT) scan revealed a large tumor in the right kidney hilar region and a left supraclavicular lymphadenopathy. Histopathological and immunohistochemical findings of the biopsy specimen taken from the left supraclavicular lymph node led to the diagnosis of recurrent malignant paraganglioma. 123I-MIBG scintigram showed no radioisotope accumulation consistent with the tumor. From April 2006 to September 2006, he received 8 cycles of CVD therapy (cyclophosphamide, vincristine, and dacarbazine). The tumor temporarily responded and was reduced to one-third in size, but soon it became resistant to CVD therapy. In March 2007, because the tumor had begun to grow, he received the 9th course of CVD therapy, but the tumor response was PD. Subsequently, palliative radiation therapy of 50 Gy in 25 fractions was administered and was temporarily effective. The CVD therapy and radiation therapy were considered to be effective for this case. In May 2008, he died 25 months after the start of CVD therapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Paraganglioma/terapia , Antineoplásicos Alquilantes/administración & dosificación , Antineoplásicos Fitogénicos/administración & dosificación , Terapia Combinada , Ciclofosfamida/administración & dosificación , Dacarbazina/administración & dosificación , Humanos , Masculino , Persona de Mediana Edad , Paraganglioma/tratamiento farmacológico , Paraganglioma/radioterapia , Vincristina/administración & dosificación
9.
Hinyokika Kiyo ; 55(12): 773-5, 2009 Dec.
Artículo en Japonés | MEDLINE | ID: mdl-20048564

RESUMEN

The patient, a 56-year-old man, had surgery for anal fistula at the age of 28. In August 2007, he underwent a radical retropubic prostatectomy (RRP) for prostate cancer. Rectal injury was not recognized during the operation. However, on the 8th postoperative day, fecaluria appeared, and rectourethral fistula was diagnosed. We attempted conservative therapy including diverting colostomy and continued drainage using a urethral catheter. Subsequently, the fistula closed spontaneously 3 months after RRP. Eight months after RRP, we performed a transanal repair of rectal mucosa based on the rectal wall advancement flap procedure. The postoperative course was uneventful, and the colostomy was closed in July 2008. By April 2009, he had normal voiding and full anal continence without fistula recurrence.


Asunto(s)
Prostatectomía/efectos adversos , Prostatectomía/métodos , Fístula Rectal/etiología , Enfermedades Uretrales/etiología , Fístula Urinaria/etiología , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Neoplasias de la Próstata/cirugía
10.
Anticancer Res ; 28(6B): 3913-20, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-19192649

RESUMEN

BACKGROUND: As hormonal therapy has an influence not only on outcome but also on toxicities, we compare the efficacy of three-dimensional radiotherapy planning (3D-RTP) and of conventional radiotherapy (Conv-RT) in association with long-term hormonal therapy in reducing toxicity of treatment. PATIENTS AND METHODS: A retrospective case-control study was performed comparing the frequency of radiation toxicity between 63 Conv-RT and 52 3D-RTP patients with locally advanced prostate cancer (intermediate to high risk) treated with combined hormonal therapy. The average duration of neoadjuvant treatment was 7 months (1-38 months) and that of adjuvant treatment was 38 months (4-94 months). Patients were treated with 70 Gy of box field radiotherapy for the same clinical target volume (60 Gy prostate + seminal vesicle and 10 Gy boost to prostate). RESULTS: Treatment volumes (= X(RL) x Y(SI) x X(AP), where X(RL) = right left length of anterior-posterior portals, X(AP) = anterior posterior length of lateral portals and Y(SI) = superior inferior length of anterior-posterior portals) were significantly smaller in the 3D-RTP group (630 +/- 130 cm3) than in the Conv-RT group (1036 +/- 223 cm3) (p < 0.0001). Acute side-effects in urological tracts (GU) were associated with XRL (p = 0.02), Y(SI) (p = 0.008) and treatment technique (Conv-RT vs. 3D-RTP: p = 0.01). The frequency of acute gastrointestinal tract (GI) toxicity was associated with X(RL) (p = 0.02), X(AP) (p = 0.03). Late GU toxicities were associated with YAP (p = 0.02) and X(RL) (p = 0.03). Treatment technique was the determinant of late GI toxicities (p = 0.03). Frequency of late GI toxicities of G2 or more was reduced from 35% in the Conv-RT group to 15% in the 3D-RTP group (p = 0.03, odds ratio = 0.43). Patients with late GI toxicity received longer periods (39 +/- 19 months) of adjuvant hormonal therapy than the patients without (31 +/- 18 months, p = 0.04). Prostate-specific antigen (PSA) failure-free survival rates at 3 years were 92% for the 3D-RTP group and 90% for the Conv-RT group (73% at 5 years, 67% at 10 years). Overall survival rates were 97% (3-year), 91% (5-year), and 91% (10-year) in the Conv-RT group, compared to 100% at 3 years in the 3D-RTP group. CONCLUSION: Long-term hormonal therapy has the potential to improve outcome but induce late GI toxicity. 3D-RTP simultaneously reduced treatment volume and frequency of acute urinary and late GI toxicities even with long-term hormonal therapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/radioterapia , Planificación de la Radioterapia Asistida por Computador/métodos , Anciano , Antagonistas de Andrógenos/administración & dosificación , Antineoplásicos Hormonales/administración & dosificación , Antineoplásicos Hormonales/efectos adversos , Estudios de Casos y Controles , Hormona Liberadora de Gonadotropina/agonistas , Humanos , Masculino , Terapia Neoadyuvante , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/sangre , Radioterapia/efectos adversos , Radioterapia/métodos , Estudios Retrospectivos
11.
Jpn J Clin Oncol ; 37(3): 201-6, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17452426

RESUMEN

BACKGROUND: In Japan, the standard chemotherapy for advanced transitional cell carcinoma (TCC) of the urothelium is MVAC (methotrexate, vinblastine, adriamycin, cisplatin). However, a second-line therapy is still required for patients with recurrent TCC who discontinued MVAC because of toxicity or have MVAC refractory tumors. METHODS: We evaluated gemcitabine monotherapy in patients with advanced TCC who were previously treated with a platinum-based regimen. Gemcitabine (1000 mg/m2) was given once a week for three consecutive weeks followed by a week of rest. This cycle was repeated at least three times, or until disease progression or intolerable adverse events were observed. RESULTS: Of the 46 patients entered into this study, 44 received gemcitabine. Performance status (PS) at study entry was: PS 0 (30 patients), PS 1 (12 patients) and PS 2 (2 patients). Stages III/IV were observed in 1/9 patients; the other 34 patients had relapsed after surgery. All 44 patients had been previously treated with a platinum-based regimen. The overall response rate was 25%, 1-year survival rate 52.3%, median survival time 12.6 months and median progression free survival 3.1 months. The major grade 3/4 hematological toxicity was neutropenia (47.7%), and the major grade 3/4 non-hematological toxicity was anorexia (9.1%). All adverse drug reactions seen in the study were manageable. CONCLUSION: Gemcitabine monotherapy is a sufficiently active and well-tolerated therapy for patients who have previously undergone chemotherapy with a platinum-based regimen.


Asunto(s)
Antimetabolitos Antineoplásicos/uso terapéutico , Antineoplásicos/uso terapéutico , Carcinoma de Células Transicionales/tratamiento farmacológico , Cisplatino/uso terapéutico , Desoxicitidina/análogos & derivados , Neoplasias Urológicas/tratamiento farmacológico , Adulto , Anciano , Antimetabolitos Antineoplásicos/administración & dosificación , Antineoplásicos/administración & dosificación , Cisplatino/administración & dosificación , Desoxicitidina/administración & dosificación , Desoxicitidina/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Urotelio , Gemcitabina
12.
Jpn J Clin Oncol ; 37(10): 775-81, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17965423

RESUMEN

BACKGROUND: Based on the data of current status of endocrine therapy for prostate cancer registered in the Japan Study Group of Prostate Cancer (J-CaP), we conducted an analysis of primary androgen deprivation therapy (PADT) and an interim analysis of the prognosis. METHODS: Of the 26 272 cases registered in the server of J-CaP, the 19 409 cases initially receiving PADT were included in this study. The initial therapy was divided into eight categories according to its features. RESULTS: Of the 19 409 patients, 1513 (7.8%) were given anti-androgen monotherapy, 955 patients (4.9%) surgical castration only, 1001 patients (5.2%) surgical castration + anti-androgen, 3015 patients (15.5%) LHRH monotherapy, 1658 patients (8.5%) LH-RH + short-term anti-androgen, 10 434 patients (53.8%) LH-RH + anti-androgen, 37 patients (0.2%) watchful waiting and 796 patients (4.1%) other therapy. In progression-free survival, the prognosis was slightly better following maximum androgen blockade (MAB) in each stage. CONCLUSIONS: The pattern of PADT is more typical in Japan compared with that in the United States. Patients who received MAB accounted for 59.0% of all the patients. MAB tends to be more often selected for patients who are rated as being at high risk on the basis of high Gleason score or PSA level upon diagnosis in each clinical stage of the disease. Investigations of the outcome are on-going and they will make clear the significance of this trend in Japan.


Asunto(s)
Antineoplásicos Hormonales/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Hormona Liberadora de Gonadotropina/antagonistas & inhibidores , Neoplasias de la Próstata/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Anilidas/administración & dosificación , Dietilestilbestrol/administración & dosificación , Supervivencia sin Enfermedad , Estudios de Seguimiento , Goserelina/administración & dosificación , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Nitrilos/administración & dosificación , Orquiectomía , Pronóstico , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Compuestos de Tosilo/administración & dosificación
13.
Asian Pac J Cancer Prev ; 8(1): 3-12, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17477764

RESUMEN

The Conference on Asian Trends in Prostate Cancer Hormone Therapy is an annual forum for Asian urologists now in its 5th year. The 2006 conference, held in Bali, Indonesia, was attended by 27 leading urologic oncologists from China, Indonesia, Japan, Korea, Singapore, and Taiwan and featured a packed program of presentations and discussions on a wide range of topics such as relationships among clinicians and the newly opened Asia Regional Office for Cancer Control of the International Union Against Cancer (UICC), detection rates of prostate cancer by biopsy in each of the 6 Asian countries, and favored treatment modalities for hormone-refractory prostate cancer (HRPC) in each country. The first session of the conference kicked off with a keynote lecture entitled "Activities of the UICC ARO". UICC's new office will be the nerve center for its activities in the Asia region. Along with the Asian Pacific Organization for Cancer Prevention (APOCP), UICC aims to shift the focus of attention to cancer control. As such APOCP's long-running publication the APJCP is to be re-launched as the Asian Pacific Journal of Cancer Control. Although UICC is primarily concerned with cancer, several risk factors for cancer are common also to other non-communicable diseases such as diabetes and heart disease, and an important strategy is to implement measures to control these various pathologic conditions as a whole. Apart from contributing to an Asian prostate cancer registry the UICC-ARO will provide training courses, working groups, and assistance in collecting and processing data. The keynote lecture was followed by a roundtable discussion on possible ways in which clinicians from each Asian country can work with UICC. A number of suggestions were put forth including better registration, epidemiology research, possible implementation of UICC prostate cancer guidelines, early detection and screening, and roles of diet and phytotherapy. The underlying reasons for the large but dwindling difference in incidence rates of prostate cancer in various regions of Asia should be studied while the opportunity lasts. Session 2 was devoted to 6 presentations on detection rates by biopsy in each country. Although biopsy is the gold standard for detecting prostate cancer in most areas, indications for conducting biopsy are different in each country. For example, in Indonesia doctors may use PSAD 0.15 as the cutoff level. TRUS-guided biopsy is most widely used in Asian countries. Traditional sextant biopsy is often performed, although multiple-core biopsy is commonly available and associated with better detection rates, especially in men with large prostate volume. Positive DRE, high PSA, and older age were identified as factors associated with high biopsy detection rate, although elevated PSA has limited specificity. First biopsy in men with elevated PSA had a positive detection rate of approximately 30% in all countries. Community-based screening in some countries has an overall detection rate of approximately 1%. The favorable treatment modality for HRPC was the subject of the final session. First priority for doctors in all 6 countries is to maintain serum testosterone at castration level. Many therapeutic options are available, from cytotoxic drugs to traditional herbal medicines Chemotherapeutic agents such as estramustine, docetaxel, cyclophosphamide, and mitoxantrone are often given to patients with HRPC although not all are available in every country. Prednisone and dexamethasone are used for secondary hormonal therapy. External beam radiotherapy, radioisotopic drugs such as strontium 89, and bisphosphonates are common choices to control bone pain.


Asunto(s)
Antagonistas de Andrógenos/uso terapéutico , Antineoplásicos Hormonales/uso terapéutico , Oncología Médica/tendencias , Neoplasias de la Próstata/tratamiento farmacológico , Asia , Humanos , Masculino
14.
Hinyokika Kiyo ; 53(2): 113-5, 2007 Feb.
Artículo en Japonés | MEDLINE | ID: mdl-17352161

RESUMEN

Renal lymphangioma is a very rare benign tumor caused by failure in the development of the lymphatic communication system. Since December 1997, a 55-year-old man with chronic B-type virus hepatitis has been followed at our hospital. Neither kidney showed any sign of cysts at that time. In November 2000, ultrasound sonography showed a right renal simple cyst measuring 1.0 cm in diameter. Thereafter, the initial cyst increased to 5.5 cm and numerous right renal cysts, appearing similar to multilocular renal cysts, were detected in December 2004. Computed tomography demonstrated a right renal multilocular cystic tumor, 5.5 cm in diameter, which was enhanced by contrast medium. Radical nephrectomy was performed, and the pathological diagnosis was renal lymphangioma based on positive staining with D2-40 antibody, which is reactive to endothelial cells of the lymphatics.


Asunto(s)
Neoplasias Renales/patología , Neoplasias Renales/cirugía , Linfangioma/patología , Linfangioma/cirugía , Hepatitis B Crónica/complicaciones , Humanos , Enfermedades Renales Quísticas/patología , Masculino , Persona de Mediana Edad
15.
Gan To Kagaku Ryoho ; 34(4): 589-95, 2007 Apr.
Artículo en Japonés | MEDLINE | ID: mdl-17431346

RESUMEN

Like other countries, Japan is facing the problem of rising medical costs associated with aging of the population, and therefore the cost-effectiveness of medicines has become increasingly important. Maximum androgen blockade (MAB) therapy, which is being widely used for advanced prostate cancer, has proved useful in clinical studies but it requires the additional use of an anti-androgen in contrast with luteinizing hormone releasing hormone agonist (LHRHa) monotherapy, raising a concern about the increase medical costs. Thus, based on the results of a Japanese Phase III study of bicalutamide we performed a cost-effectiveness analysis. We constructed a Markov model to express the changes in prognosis following MAB therapy and LHRHa monotherapy for advanced prostate cancer and the cost and effectiveness (survival) were simulated. As a result, the expected costs of MAB therapy and LHRHa monotherapy were 5,240,000 yen and 3,660,000 yen, respectively, with expected survival durations of 7.45 and 6.44 years. The incremental cost-effectiveness ratio for MAB therapy was 1,560,000 yen/life-year saved, lower than the established threshold (6,000,000 yen/life-year saved), and a sensitivity analysis confirmed the robustness of this result. Therefore, the incremental cost of bicalutamide was considered worth it in view of the therapeutic effect, suggesting that MAB therapy is a highly cost-effective therapy.


Asunto(s)
Antagonistas de Andrógenos/economía , Antagonistas de Andrógenos/uso terapéutico , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/economía , Anciano , Análisis Costo-Beneficio , Esquema de Medicación , Hormona Liberadora de Gonadotropina/agonistas , Humanos , Masculino , Cadenas de Markov , Modelos Econométricos , Método de Montecarlo , Neoplasias de la Próstata/mortalidad , Tasa de Supervivencia
16.
Hinyokika Kiyo ; 51(12): 835-7, 2005 Dec.
Artículo en Japonés | MEDLINE | ID: mdl-16440735

RESUMEN

Late recurrence of stage I testicular seminoma is rare. We herein report a case of retroperitoneal lymph node recurrence of testicular seminoma 6 years after high orchiectomy. A 39-year-old man had a left high orchiectomy for stage I testicular tumor in November 1997. Histopathological findings revealed seminoma (pT3). In 2003, follow up computed tomography showed retroperitoneal lymph nodes swelling. Serum tumor markers had been normal since 1997. Retroperitoneal lymph nodes were dissected in April 2004. Histopathological findings were recurrence of seminoma.


Asunto(s)
Escisión del Ganglio Linfático , Ganglios Linfáticos/patología , Orquiectomía , Seminoma/secundario , Neoplasias Testiculares/patología , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Espacio Retroperitoneal , Seminoma/cirugía , Neoplasias Testiculares/cirugía , Tomografía Computarizada por Rayos X
17.
Hinyokika Kiyo ; 51(8): 561-3, 2005 Aug.
Artículo en Japonés | MEDLINE | ID: mdl-16164273

RESUMEN

Watchful-waiting policy is an important treatment option for some patients with localized prostate cancer and it is widely recognized in Western countries in which the prostate cancer mortality rate is 510 fold higher than that in Japan. Most men with well and perhaps moderately differentiated prostate cancer who have a life expectancy of less than 10 years will die of other causes and it is not clear whether early primary hormone therapy improves survival and the quality of life compared to androgen suppression deferred until signs and symptoms of clinical progression. There is one major question as to whether patients who do not need radical treatment should undergo early primary hormone therapy in Japan in spite of high cost and treatment-related adverse effects of hormone therapy.


Asunto(s)
Neoplasias de la Próstata , Anciano , Anciano de 80 o más Años , Progresión de la Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/terapia
18.
Hinyokika Kiyo ; 51(4): 297-9, 2005 Apr.
Artículo en Japonés | MEDLINE | ID: mdl-15912794

RESUMEN

We report two cases of femoral nerve palsy after radical prostatectomy due to compression ascribed to the use of a ring retractor. The first case is in a 69-year-old man who fell when getting out of bed on the first postoperative day. Physical examination revealed hypoesthesia around the patella and weakness of the quadriceps muscle. The second case is in a 66-year-old man who complained of numbness of the anteromedial aspects of the right thigh and inability to extend his right knee on the first postoperative day. Postoperative femoral nerve palsy is not a well-recognized complication in urology. The literature was reviewed and the management of postoperative femoral nerve palsy was discussed.


Asunto(s)
Neuropatía Femoral/etiología , Prostatectomía/efectos adversos , Anciano , Humanos , Masculino , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/rehabilitación , Prostatectomía/instrumentación , Prostatectomía/rehabilitación , Instrumentos Quirúrgicos/efectos adversos
19.
Nihon Rinsho ; 63(2): 201-6, 2005 Feb.
Artículo en Japonés | MEDLINE | ID: mdl-15714966

RESUMEN

'General Rule for Clinical and Pathological Studies on Prostate Cancer(The 1st edition)' was published at 1985 by Japanese Urological Association and The Japanese Society of Pathology. It was revised in 1992 and the 2nd edition was published. Current diagnostic tests including prostate specific antigen (PSA) and biopsy technique have changed diagnosis and treatment of prostate cancer greatly. The 3rd edition was published in 2001 based on these changes. Here, the feature of the 3rd edition is outlined.


Asunto(s)
Guías de Práctica Clínica como Asunto , Neoplasias de la Próstata/diagnóstico , Biomarcadores/sangre , Técnicas de Diagnóstico Urológico/normas , Humanos , Japón , Masculino , Recurrencia Local de Neoplasia/diagnóstico , Estadificación de Neoplasias , Patología/organización & administración , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/terapia , Sociedades Médicas , Urología/organización & administración
20.
Hinyokika Kiyo ; 50(2): 111-4, 2004 Feb.
Artículo en Japonés | MEDLINE | ID: mdl-15101168

RESUMEN

A 79-year-old man presented in August 2002 with right flank pain, anorexia, and gross hematuria. Physical examination was significant for a palpable, nontender, firm, and fixed mass in the epigastric region. Computed tomography scan of abdomen revealed a 15 cm tumor occupying almost the whole right kidney with extension into the inferior vena cava. The para-aortic and retroperitoneal lymph nodes were significantly enlarged. Examinations including bone scintigram and chest X-ray revealed no metastases. The patient underwent a ultrasound sonography-guided biopsy of the renal tumor, which showed a small cell carcinoma pathologically, and immunohistochemically. The patient received palliative treatment, and died in February 2003. We reviewed 25 cases including our case, and analyzed the clinical outcome of small cell carcinoma of the kidney.


Asunto(s)
Carcinoma de Células Pequeñas/diagnóstico , Neoplasias Renales/diagnóstico , Anciano , Carcinoma de Células Pequeñas/patología , Carcinoma de Células Pequeñas/terapia , Resultado Fatal , Humanos , Neoplasias Renales/patología , Neoplasias Renales/terapia , Metástasis Linfática , Masculino , Invasividad Neoplásica , Cuidados Paliativos , Neoplasias Vasculares/patología , Vena Cava Inferior
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA