Upper gastrointerstinal endoscopy is very commonly performed procedure used as a diagnostic tool to evaluate patients with a wide range of problems and compaints. Major complications related to diagnostic and therapeutic procedures can be divided into~cardiopulmonary complications, complications related to sedation, infectious complications, perforation and bleeding.
Knowledge of potential complications and their expected frequency together with adequate monitoring of the patientcan lead to their~recognition. Early recognition of complications and prompt intervention may minimize patient morbidity.~