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

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.