Inhaled Sevofluran vs Endovenous Propofol for Colonoscopy

Inclusion Criteria: * Age between 18 and 80 years * physical status I, II and III according to the criteria of the American Society of Anesthesiology (ASA) * patients who are going to undergo diagnostic colonoscopies * patients who signed the informed consent Exclusion Criteria: * Allergy or hypersensitivity to some of the reference drugs in the study * patients with proven liver disease * suspicion or confirmation of pregnancy * antecedent or risk of malignant hyperthermia * fasting less than 8 hours * patients with psychic disorders or mental incapacity that make it difficult to understand their participation in the study * patients who have acute illnesses that compromise their health for which the study cannot be performed