[Clinical and neuropsychologic evaluation of different anesthesia techniques (propofol vs isoflurane) in general...

Different anaesthetic techniques in the perioperative period (induction and maintenance of anesthesia, recovery and 48 postoperative hours) were evaluated in 200 patients undergoing general surgery. After randomization, results from 4 groups, were clinically and statistically compared according to the anesthetic techniques performed (propofol + fentanyl in air/O2; isoflurane + fentanyl in air/O2; propofol + fentanyl in N2O/O2; isoflurane in N2O/O2). The results show that anesthesia without N2O is difficult and fentanyl isn't the ideal analgesic; but no difference was found between the anesthetic techniques in quality of induction and maintenance, speed of recovery and quality of postoperative period.