ABSTRACT
As general anesthesia is not a suitable choice in elderly ASA>II patients candidate for cataract surgery performored by ophthalmology Residents and lack of cooperation in these patients, sedative effect and hemodynamic status and side effects of two drugs, Remifentanil and propofol are compared in this study. In a Randomized clinical trial 60 patient candidates for cataract surgery were divided in two groups each containing 30 patients. In group A [remifentanil group], patients were sedated with a bolus dose of 0.5 micro g/kg within 1 minute, and maintenance dose of 0.05 micro g/kg/min. In group B [propofol group], patients were sedated with a bolus dose of 0.25 micro g/kg, and maintenance dose of 25 micro g/kg/min. After retrobulbar blockage was performored on all the patients by residents, Hemodynamic responses, including HR, DBP, SBP and O2Sat and sedation level according to MOAA/SS were measured. Modified Observers Assessment of Awareness/Sedation Scale = MOAA/SS. Sedation was deeper in group A [Remifentanil] were statistically meaningful during the measured times after blockage .The heart rate was reduced in group A 20 minutes after blockage and were statistically meaningful [p<0.05]. 7 patients in group A [Remifentanil] had nausea after drug administration [P=0.011]. Remifentanil can induce high level of sedation for patients compare to propofol. But Nausea could be troublesome and in this point propofol has less adverse effect