[Re-radiation of recurrent nasopharyngeal carcinoma--analysis of 58 cases].
Fifty-eight patients with recurrent nasopharyngeal carcinoma in nasopharynx and/or regional areas were re-radiated from 1972 to 1979 after initial irradiation. 70.7% of the recurrence appeared within 3 years after initial treatment. 90.9% of the recurrent tumor disappeared after re-radiation. The 3-and 5-year survival rates were 29.3% (17/58) and 12.1% (7/58). The factors influencing the prognosis are: the interval between the treatment and the recurrence; dose of re-radiation; and initial stage of the primary lesions. The authors suggest that the dose of re-radiation should be 70 Gy/7 weeks.
Yao
Y Z
YZ
Jiangsu Cancer Institute, Nanjing.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000401:mortality / Q000532:radiotherapy*; D009364:Neoplasm Recurrence, Local / Q000401:mortality / Q000532:radiotherapy*; D011829:Radiation Dosage; D012189:Retrospective Studies; D015996:Survival Rate; D013997:Time Factors