期刊
JOURNAL OF CLINICAL ONCOLOGY
卷 24, 期 33, 页码 5277-5282出版社
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.2006.07.2884
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- NCI NIH HHS [U24-CA-55727, U24 CA055727] Funding Source: Medline
Purpose This report examines the incidence of and risk factors for strokes that occur in >= 5-year survivors of childhood leukemia and brain tumors. Patients and Methods The rate of first occurrence of self-reported late-occurring strokes was determined for leukemia survivors (n = 4,828), brain tumor survivors (n = 1,871), and a comparison group of a random sample of cancer survivor siblings (n = 3,846). Relative risks (RRs) and 95% confidence intervals (Cls) of stroke by treatment exposures were examined by multivariate analyses. Results Thirty-seven leukemia survivors and 63 brain tumor survivors reported a late-occurring stroke. The rate of late-occurring stroke for leukemia survivors was 57.9 per 100,000 person-years (95% Cl, 41.2 to 78.7). The BR of stroke for leukemia survivors compared with the sibling comparison group was 6.4 (95% Cl, 3.0 to 13.8, P <.0001). The rate of late-occurring stroke for brain tumor survivors was 267.6 per 100,000 person-years (95% Cl, 206.8 to 339.2). The RR of stroke for brain tumor survivors compared with the sibling comparison group was 29.0 (95% Cl, 13.8 to 60.6; P <.0001). Mean cranial radiation therapy (CRT) dose of >= 30 Gy was associated with an increased risk in both leukemia and brain tumor survivors in a dose-dependent fashion, with the highest risk after doses of >= 50 Gy CRT. Conclusion Survivors of childhood leukemia and brain tumors, particularly those with brain tumors treated with CRT at doses of greater than 30 Gy, are at an increased risk of stroke.
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