Table 1.

Preoperative and postoperative hormone levels.

	Preoperatively	10 days postoperatively	2 years postoperatively
ACTH level (pg/mL)	68.9	Undetectable	Undetectable
Cortisol level (μg/dL)	25.8	0.51	0.44
GH level (ng/mL)	12.8	Undetectable	Undetectable
AVP level (pg/mL)	0.6	Undetectable	Undetectable

Preoperative hormone levels were measured in the basal state. Postoperative anterior pituitary function was measured after stimulation with the intravenous administration of corticotropin-releasing hormone and growth-hormone releasing factor. The preoperative and postoperative day 10 AVP levels were measured in the basal state. At 2 years postoperatively, the AVP level was measured after water deprivation (2 h for computed tomography imaging).

ACTH adrenocorticotropic hormone, GH growth hormone, AVP arginine vasopressin.