The CONSORT flow diagram of this study.
All patients received 2.5 mg dexamethasome and 25 μg levothyroxine orally preoperatively each day. Based on the volume of urine, desmopressin was administered. Moreover, the electrolyte level was regulated to avoid causing major abnormalities. Postoperative hormone supplement treatment with dexamethasone and levothyroxine was routinely administered.