Sixty patients were randomly allocated into two groups, group PD and group PR, thirty
patients in each group. Patients in PD group received propofol and dexmedetomidine
intravenous infusion and patients in PR group received propofol and remifentanil intravenous
infusion. Sedation score and patients' satisfaction, surgeon satisfaction, heart rate, mean
arterial blood pressure, oxygen saturation, and side effects such as respiratory depression,
nausea, vomiting, airway obstruction, and oxygen desaturation were recorded.