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1.
Cancer ; 104(3): 525-31, 2005 Aug 01.
Article in English | MEDLINE | ID: mdl-15986481

ABSTRACT

BACKGROUND: Nasopharyngeal carcinoma in childhood is rare. Radiochemotherapy is considered the standard treatment and yields increased survival and local control rates. In this article, the authors report on the results from the multidisciplinary treatment of pediatric patients who had nasopharyngeal lymphoepithelioma with radiochemotherapy, including high-dose-rate brachytherapy of the primary tumor site. METHODS: Between May 1992 and May 2000, 16 children with nasopharyngeal lymphoepithelioma received neoadjuvant chemotherapy, conventional external beam radiotherapy, high-dose-rate brachytherapy, and adjuvant chemotherapy. Patients ranged in age from 7 years to 18 years, and 9 patients were male. Patient distribution according to clinical disease stage was as follows: Stage III, 1 patient; Stage IVA, 5 patients; Stage IVB, 9 patients; and Stage IVC, 1 patient. Three cycles of neoadjuvant and adjuvant chemotherapy in 3-week intervals were administered with cyclophosphamide, vincristine, doxorubicin, and cisplatin. The median doses of external beam radiotherapy to the primary tumor, positive lymph nodes, and subclinical areas of disease were 55 grays (Gy), 55 Gy, and 45 Gy, respectively. Children received 2 insertions of high-dose-rate brachytherapy at 5 Gy per insertion: These were performed with metallic applicators inserted through the transnasal access under local anesthesia. RESULTS: The median of follow-up was 54 months. At the time of last follow-up, 13 patients were alive without disease, 2 patients had died of disease, and 1 patient had died of treatment-related cardiac failure. Local control was achieved in 15 of 16 patients. Chemotherapy-related and radiotherapy-related acute toxicity was relevant but tolerable. CONCLUSIONS: In the current study, it was shown that the treatment was effective in the control of both local and distant disease, although there was relevant acute and late toxicity. High-dose-rate brachytherapy was deliverable on an outpatient basis with local anesthesia. Close follow-up of these patients was necessary to evaluate the significance of treatment-related late effects and their impact on quality of life.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Brachytherapy , Carcinoma, Squamous Cell/radiotherapy , Nasopharyngeal Neoplasms/radiotherapy , Adolescent , Carcinoma, Squamous Cell/drug therapy , Carcinoma, Squamous Cell/mortality , Child , Cisplatin/administration & dosage , Combined Modality Therapy , Cyclophosphamide/administration & dosage , Doxorubicin/administration & dosage , Female , Follow-Up Studies , Humans , Male , Nasopharyngeal Neoplasms/drug therapy , Nasopharyngeal Neoplasms/mortality , Neoadjuvant Therapy , Neoplasm Staging , Prognosis , Quality of Life , Retrospective Studies , Survival Rate , Vincristine/administration & dosage
2.
Radiol. bras ; 34(5): 309-313, set.-out. 2001. ilus
Article in Portuguese | LILACS | ID: lil-322635

ABSTRACT

Os autores apresentam um caso de extenso angiossarcoma do couro cabeludo submetido a radioterapia exclusiva, pela associação de roentgenterapia de ortovoltagem e braquiterapia de alta taxa de dose utilizando um molde. Descrevem os aspectos clínicos, técnicos e a evolução terapêutica. Destacam as particularidades e a utilidade da braquiterapia de alta taxa de dose, nesta situação em particular, e fazem uma análise comparativa das dificuldades e limitações caso a braquiterapia de baixa taxa de dose fosse empregada. Concluem ser a braquiterapia de alta taxa de dose uma opção útil, prática e segura para as lesões neoplásicas superficiais do escalpe, podendo ser considerada uma alternativa ao tratamento com elétrons.


Subject(s)
Humans , Female , Hemangiosarcoma , Head and Neck Neoplasms/radiotherapy , Aged, 80 and over , Brachytherapy , Outcome and Process Assessment, Health Care
4.
Acta oncol. bras ; 14(1): 41-45, jan.-mar. 1994. tab, graf
Article in Portuguese | LILACS | ID: lil-258267

ABSTRACT

O artigo descreve a evolução de dez pacientes portadores de melanoma uveal tratados por placas de cobalto-60 episclerais, desde dezembro de 1988, no Hospital A. C. Camargo, da Fundação Antonio Prudente, São Paulo. O tamanho das lesões variou de quatro a 11mm em altura e 11 a 16mm na base. A dose de radiação aplicada variou de 8.000 a 10.000 cGy no ápice e de 24.000 a 39.000 cGy na base. Observou-se redução de altura da lesão em nove pacientes (90 porcento), em seis (60 porcento) a base reduziu concomitantemente e em 1 (10 porcento) não houve alteração do tamanho da lesão nos primeiros sete meses após terapia. Os pacientes foram acompanhados por um período mínimo de quatro e máximo de 27 meses. Os autores discutem as indicações, método e resultados deste tipo de terapia.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Uveal Neoplasms/radiotherapy , Brachytherapy , Follow-Up Studies , Melanoma/radiotherapy , Cobalt Radioisotopes/therapeutic use
5.
Acta oncol. bras ; 8(3): 121-124, set.-dez. 1988. tab
Article in Portuguese | LILACS, Inca | ID: lil-63204

ABSTRACT

Este estudo reporta a experiência dos Departamentos da Radioterapia e Pediatria do Hospital A.C. Camargo da Fundaçäo Antônio Prudente, Säo Paulo, no tratamento de sarcomas de partes moles da infância, através de diferentes técnicas de braquiterapia no período de janeiro de 1979 a julho de 1986. Doze pacientes foram avaliados e a faixa etária variou dos três meses aos 14 anos. Dez pacientes tiveram fontes radioativas implantadas diretamente no tecido tumoral e dois foram tratados usando-se aplicadores radiotivos de superfície. Controle local da enfermidade ocorreu em onze casos, sendo quatro com sobrevida a longo prazo (superior a 50 meses), bom resultado funcional e cosmético, e sete com seguimento inferior a 50 meses (mínimo de 17 meses). Observou-se apenas uma falha local com recidiva na área irradiada, cinco meses após o tratamento. Braquiterapia pode ser modalidade útil de tratamento em oncologia pediátrica, possibilitando a reduçäo da doese de radioterapia externa e minimizando os efeitos tardios da irradiaçäo, com sobrevida de melhor qualidade


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Sarcoma/therapy , Soft Tissue Neoplasms/therapy , Brachytherapy , Prognosis
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