Results of gamma knife radiosurgery in acromegaly

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Abstract

Objective. Single-session radiosurgery with Gamma Knife (GK) may be a potential adjuvant treatment in acromegaly. We analyzed the safety and efficacy of GK in patients who had previously received maximal surgical debulking at our hospital. Methods. The study was a retrospective analysis of hormonal, radiological, and ophthalmologic data collected in a predefined protocol from 1994 to 2009. The mean age at treatment was 42.3 years (range 22-67yy). 103 acromegalic patients participated in the study. The median follow-up was 71 months (IQ range 43-107). All patients were treated with GK for residual or recurrent GH-secreting adenoma. Results. Sixty-three patients (61.2) reached the main outcome of the study. The rate of remission was 58.3 at 5 years (95 CI 47.6-69.0). Other 15 patients (14.6) were in remission after GK while on treatment with somatostatin analogues. No serious side effects occurred after GK. Eight patients (7.8) experienced a new deficit of pituitary function. New cases of hypogonadism, hypothyroidism, and hypoadrenalism occurred in 4 of 77 patients (5.2), 3 of 95 patients (3.2), and 6 of 100 patients at risk (6.0), respectively. Conclusion. In a highly selected group of acromegalic patients, GK treatment had good efficacy and safety. Copyright © 2012 Alberto Franzin et al.

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Franzin, A., Spatola, G., Losa, M., Picozzi, P., & Mortini, P. (2012). Results of gamma knife radiosurgery in acromegaly. International Journal of Endocrinology, 2012. https://doi.org/10.1155/2012/342034

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