IRCT201606062499N4 IRCT 2016-11-30 Mazandaran University of Medical Sciences The Physician’s Satisfaction of the Quality of Endoscopy Clinical trial of comparing the physician’s satisfaction of adequacy of sedation for endoscopy in two groups of patients whose type of sedation will be chosen by the doctor or by the patient 2015-05-22 anticipated 140 Complete https://irct.ir/trial/2233 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Other design features: Patients were divided by blocked randomization. 3 Condition 1: Diseases of upper digestive system which need endoscopy. Condition 2: Diseases of upper digestive system which need endoscopy. Condition 3: Diseases of upper digestive system which need endoscopy. Intervention 1: Intervention group: The type of sedation (including intravenous Midazolam 1.5 milligram, intravenous Pethidine 12.5 milligram or general anesthesia) will be chosen by the patient after being educated by a pamphlet. Intervention 2: Control group 1: In this group, Intravenous Midazolam 1.5 milligram will be injected to the patient before performing endoscopy. The dose and/ or type of sedative may change during endoscopy according to the physician's opinion.