Evaluation of the Stress Response in Anesthesia Use Inhalation Anesthetic (Desflurane) Versus TIVA for Bariatric Surgery

Inclusion Criteria: * Signed Informed Consent * ASA II-III * Morbid obesity confirmed diagnosis and approval for surgical treatment * Laparoscopic sleeve gastrectomy (LSG) or Gastric By pass (R-Y By pass /SASI/SADI AND one anastomosis by pass ) * Preop respiratrory assessment conducted * Adequate organ and bone marrow function Exclusion Criteria: * Patients declining or withdrawing consent * Patients unsuitabe with regards to compliance to treatment, according to the researcher's assessment * Bradycardia, AV block, , postural hypotension * QTcF\>470msec * Known allergy or hypersensitiity to any of the medications administered * Stop-BANG score \>6 * Intraoperative administration of more than 8mg of prednisolone or equivalent * Patients who have received corticosteroids for durations \>3 weeks at any point in their lifetime * Participation in other clinical trial for experimental product administered post operatively * Diagnosis of depression