The long term results of nasopharyngeal carcinoma treated by ~(60)Co external irradiation plus intracavitary radiotherapy using the high dose rate afterloading technique / 中华放射肿瘤学杂志
Chinese Journal of Radiation Oncology
;
(6)1995.
Artigo
em Chinês
| WPRIM
| ID: wpr-551504
ABSTRACT
Purpose:
The long term results and radiation sequelae of nasopharyngeal carcinoma treated by 60 Co external irradiation plus the high dose rate afterloading intracavity radiation (AIR) were analysed.Materials andMethods:
From June 1981 to December 1988, 64 patients with nasopharyngeal cacinoma were treated by 60 Co external irradiation plus the high dose rate AIR. The AIR was given as a routine boost or for residual disease. The external irradiation dose varied from 55 to 70 Gy, whereas AIR dose ranged from 10 to 45 Gy.Results:
All patients were followed up for mored than 5 years. The 5-year local control rate was 82.8%. The 5-year actuarial survival and disease free rates were 75.0%,68.8% respectively . 8 cases developed distant metastases, 6 cases recurred in the nasopharynx and/or neibouring structures and 1 case ocurred bone sarcoma of hard palate. The late radiation sequelae occured in 4 cases, 1 radiation necrosis of the bone in nasal cavity and 3 radiation perforations in hard and soft palate.Conclusion:
We think that AIR for nasopharyngeal carcinoma is indicated for boosting the dose to the nasopharyngeal cavity with appropriated reduction in external irradiation dose ,and for residual disease after primary external radiotherpy. To reduce radiation sequelae applicator should be improved.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Radiation Oncology
Ano de publicação:
1995
Tipo de documento:
Artigo
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