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Radiotherapy, espec...
Radiotherapy, especially at young age, increases the risk for de novo brain tumors in patients treated for pituitary/sellar lesions
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- Burman, Pia (author)
- Lund University,Lunds universitet,Genomik, diabetes och endokrinologi,Forskargrupper vid Lunds universitet,Genomics, Diabetes and Endocrinology,Lund University Research Groups,Skåne University Hospital
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- Van Beek, Andre P. (author)
- University of Groningen
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- Biller, Beverly M K (author)
- Massachusetts General Hospital
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- Camacho-Hübner, Cecilia (author)
- Pfizer Inc. US
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- Mattsson, Anders F. (author)
- Pfizer Inc. US
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(creator_code:org_t)
- 2017-01-13
- 2017
- English 8 s.
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In: Journal of Clinical Endocrinology and Metabolism. - : The Endocrine Society. - 0021-972X .- 1945-7197. ; 102:3, s. 1051-1058
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Abstract
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- Context: De novo brain tumors developing after treatment of pituitary/sellar lesions have been reported, but it is unknown whether this is linked to any of the treatment modalities. Objective: To study the occurrence of malignant brain tumors and meningiomas in a large cohort of patients treated for pituitary/sellar lesions, with special emphasis on the role of radiotherapy (RT). Patients and Methods: Patients (n = 8917) who were hypopituitary due to pituitary adenomas, craniopharyngiomas, and other sellar tumors followed in KIMS (Pfizer International Metabolic Database) from 1994 to 2012 were included. Treatment consisted of surgery and/or medical therapy in 4927 patients, RT alone, or with surgery in 3236 patients; data were missing in 754. Incidence rate ratios (RRs) were analyzed through Poisson regression methods with internal comparisons. Results: During 53,786 patient-years, 17 cases of malignant brain tumors (13 exposed to RT) and 27 meningiomas (22 exposed to RT) were reported. RR for RT vs no RT was 3.34 [95% confidence interval (CI), 1.06 to 10.6] for malignant brain tumors, and 4.06 (95% CI, 1.51 to 10.9) for meningiomas. The risk of developing a malignant brain tumor increased by 2.4-fold (P = 0.005) and meningioma by 1.6-fold with every 10 years of younger age at RT (P = 0.05). Incidence rates were similar in patients treated with conventional RT compared with stereotactic RT. Conclusion: RT of pituitary tumors is associated with increased risk of developing malignant brain tumors and meningiomas, especially when given at younger ages. In balancing risks and benefits of RT, our findings emphasize that special consideration should be given to the age of the patient.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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