Overview Effect of Dexmedetomidine on Plasmatic Cortisol Response in Transsphenoidal Surgery Status: Unknown status Trial end date: 2017-08-01 Target enrollment: Participant gender: Summary Use of dexmedetomidine in pituitary tumor resection surgery as adjuvant drug and its relation to cortisol levels during postoperative period. Phase: Phase 4 Details Lead Sponsor: Pontificia Universidad Catolica de ChileTreatments: Cortisol succinateDexmedetomidineHydrocortisoneHydrocortisone 17-butyrate 21-propionateHydrocortisone acetate