This is a prospective, randomized-controlled trial (RCT) comparing the use of Propofol and Remifentanyl and traditional sedation (Midazolam and Fentanyl) for diagnostic colonoscopies in patients with compensated cirrhosis child A-B. The working hypothesis is that the use of propofol will be translated in a shorter recovery and discharge times with a higher patient satisfaction and a decrease in general complications (Hepatic Encephalopathy) in the context of patients with advanced liver disease.

Inclusion Criteria:

• Consecutive patients older than 18 and younger than 75 years with cirrhosis defined by the presence of liver fibrosis at least F3 and higher in the METAVIR score or with established cirrhosis (Child Pugh A, B)

Exclusion Criteria:

• Patients with significant cardiorespiratory disease i.e. advanced respiratory, renal and heart failure (ASA class III or higher except for patients with decompensate liver cirrhosis), obstructive sleep apnea.
• HCC