Hormonal and radiological effects of megavoltage radiotherapy in patients with growth hormone-secreting pituitary adenoma.

Abstract

Nineteen acromegalic patients (12 females and 7 males, aged 24-71 yr) were studied for 1-6 yr after radiotherapy (RT), administered by X-rays (18 MeV) by linear accelerator, with parallel opposite beams (doses 45-50.4 Gy, 1.8 Gy daily). Basal GH levels gradually decreased from 6.3-76.2 micrograms/L (mean +/- SE, 27.8 +/- 4.9) to 0.3-43.4 micrograms/L (11.7… (More)

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