Retrospective analysis of patients with nasopharyngeal carcinoma treated during 1976-1985: survival after local recurrence.
Int J Radiat Oncol Biol Phys
; 26(5): 773-82, 1993 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-8344845
ABSTRACT
PURPOSE:
To study the value of re-irradiation, the overall survival and pattern of failures for patients with nasopharyngeal recurrence. METHODS AND MATERIALS All the 891 patients with local recurrence following radiotherapy for nasopharyngeal carcinoma during 1976-1981 were retrospectively analyzed. Only 70% of them had local failure alone at the time of detection, and the T-stage distribution (by Ho's system) was 31% rT1, 16% rT2, 51% rT3, and 1% rT?. Seven hundred and six (79%) patients had been re-irradiated with various techniques and doses. Among those who failed, 50 had further irradiation.RESULTS:
The overall 5- and 10-year actuarial cancer-specific survival rates were 14% and 9%, respectively. Patients with rT3 disease had the worst prognosis. Successful local salvage was achieved in 32% of those re-irradiated (26% of the whole series). The highest control rate was achieved by those treated with external radiotherapy to 60 Gy (equivalent) or above. Only 8/50 patients responded to the third course of radiotherapy. The cumulative incidence of late post-re-irradiation sequelae was 24%, and the treatment mortality rate 1.8%. Besides local failure, 54% had regional relapse and/or distant metastasis. Thus, only 16% of recurrent patients were totally disease-free at final assessment.CONCLUSION:
The overall prognosis for patients with nasopharyngeal recurrence was grave. High dose re-irradiation could achieve successful local salvage in a substantial number of patients with early recurrence, but late complications did occur. Furthermore, high incidence of failure at other sites was observed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carcinoma de Células Escamosas
/
Neoplasias Nasofaríngeas
/
Recidiva Local de Neoplasia
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Int J Radiat Oncol Biol Phys
Ano de publicação:
1993
Tipo de documento:
Article
País de afiliação:
Hong Kong