title: Propofol versus thiamylal-enflurane anesthesia for outpatient laparoscopy.
abstract: OBJECTIVE
  To determine whether propofol anesthesia differs from thiamylal-enflurane anesthesia in induction characteristics, intraoperative hemodynamics, postoperative side effects, and postoperative psychomotor function recovery.
  
  
  METHODS
  A randomized, double-blind, two-group study.
  
  
  METHODS
  A large university hospital with gynecologic outpatient operations performed in an integrated operating room suite.
  
  
  METHODS
  Sixty adult women (ASA physical status I or II) undergoing an outpatient gynecologic laparoscopic operation with an anesthesia time of approximately 60 minutes.
  
  
  METHODS
  No pharmacologic premedication. Pretreatment with intravenous droperidol 0.6 mg and sufentanil 0.2 micrograms/kg before induction of anesthesia. Anesthesia was induced with either thiamylal 4 mg/kg (Group 1) or propofol 2.5 mg/kg (Group 2). Anesthesia was maintained with either nitrous oxide (N2O) and enflurane, 2-0.5% inspired concentrations; (Group 1) or with a continuous infusion of propofol 200-100 micrograms/kg/min and N2O (Group 2).
  
  
  RESULTS
  In psychomotor function tests (Trieger dot test and p-deletion test) administered preoperatively and postoperatively, no difference was found between the groups. No difference was found in induction time, although significantly more patients reported pain after the propofol injection, or in intraoperative hemodynamics (mean arterial pressure and heart rate). Immediate recovery time (emergence from anesthesia) and intermediate recovery time (ambulation, oral intake, and discharge time) were significantly shorter after propofol anesthesia. Fewer postoperative side effects, such as nausea and vomiting, were reported after propofol anesthesia.
  
  
  CONCLUSIONS
  Induction and maintenance of anesthesia with propofol were comparable to those with thiamylal-enflurane, except patients experienced more pain on injection after propofol. Both immediate and intermediate recovery were more rapid after propofol anesthesia compared with enflurane-based anesthesia.
authors.affiliation: Department of Anesthesiology, University of Michigan Medical Center, Ann Arbor 48109-0048.
authors.forename: G I
authors.initials: GI
authors.lastname: Randel
authors.forename: L
authors.initials: L
authors.lastname: Levy
authors.forename: S P
authors.initials: SP
authors.lastname: Kothary
authors.forename: S K
authors.initials: SK
authors.lastname: Pandit
mesh_terms: D000328:Adult; D000553:Ambulatory Care; D000769:Anesthesia, Inhalation; D000771:Anesthesia, Intravenous; D004311:Double-Blind Method; D004737:Enflurane; D005260:Female; D006801:Humans; D010535:Laparoscopy; D015742:Propofol; D011897:Random Allocation; D013840:Thiamylal
chemical_list: D013840:Thiamylal; D004737:Enflurane; D015742:Propofol