Time to recovery of the hypothalamic-pituitary-adrenal axis after curative resection of adrenal tumors in patients with Cushing's syndrome.

TL;DRAbstract

The recovery time of the hypothalamic-pituitary-adrenal (HPA) axis after curative resection of adrenal tumors in patients with Cushing's syndrome is poorly documented. Eight consecutive patients were treated with a standardized hydrocortisone replacement strategy after curative resection of a cortisol-secreting tumor and the time to recovery of the HPA axis was determined. Hypercortisolism was documented by elevated 24-hour urinary free cortisol levels. Cure was documented by undetectable postoperative morning serum cortisol levels. Each patient received replacement hydrocortisone after surgery and was reevaluated every 3 to 6 months with an adrenocorticotrophic hormone (ACTH) stimulation test. Each patient was also monitored carefully for symptoms and signs of adrenal insufficiency, which was defined as symptoms consistent with this diagnosis that responded to increases in hydrocortisone levels. After surgical resection, each patient was cured of hypercortisolism. Subsequently, despit

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