Propofol-Ketamine vs. Propofol-Fentanyl for Sedation during Gastrointestinal Endoscopy

¹Department of Anesthesia, Intensive Care and Pain Management, Ain Shams University, Abbasiya, Cairo, Egypt

²Department of Tropical Medicine, Gastroenterology, and Hepatology, Ain Shams University, Abbasiya, Cairo, Egypt