Medline: 7852105

International Journal of Radiation Oncology, Biology, Physics 31(3): 445-451, 1995.

Brain tumors in children: long-term survival after radiation treatment.

Jenkin D, Greenberg M, Hoffman H, et al.

Abstract:

Purpose:
To determine the cause of death in children who survive more than 5 years after radiation treatment of a brain tumor.

Methods:
AND MATERIAL: Nine hundred and twelve consecutive children with a primary brain tumor irradiated at the Princess Margaret Hospital or Toronto-Bayview Regional Cancer Center from 1958 to 1991, were evaluated for long-term outcome.

Results:
Overall 10- and 20-year survival rates were 44% and 37%. Subsequent survival of 377 5-year survivors was, at an additional 10 and 20 years, 78% and 67%. Most (83%) deaths that occurred more than 5 years from diagnosis were a result of relapse of the original tumor. The 10-year survival rate subsequent to relapse was 9% when the first relapse occurred less than one year from diagnosis, 17% for 1-2 years, and 31% when the time to relapse was 3 years or greater. The cumulative actuarial incidence of, and death from, second malignant tumors at 30 years from diagnosis was 18% and 13%, respectively.

Conclusions:
Death later than 5 years from diagnosis of a brain tumor in children is common and is usually due to progressive disease in slowly evolving low grade tumors. Death from a second malignant tumor becomes more frequent than death from the original tumor after 15 years from diagnosis.


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