Propofol for Sedation of Postoperative Electively Ventilated Liver Transplant Recipients.

All consenting, adult patients aged 18 years and above who will require elective ventilation after liver transplant recipient surgery will be enrolled for the study. Patients in acute liver failure, hepatic encephalopathy or patients with history of allergic reactions to propofol will be excluded from the study. This is an observational study. As per institute treatment protocol, propofol will be given post-operatively at a dose of 1 mg/kg/hr and than titrated to maintain a Bi-Spectral Index (BIS) score of 60-80 till the patient is on ventilator. There will be no deviation from our routine institutional protocol and no other sedative drugs like opioids or benzodiazepines will be used and no interventions will be done. Hemodynamics will be maintained targeting a mean arterial pressure (MAP) of at least 65 mm Hg. during the study period using appropriate measures.