title: [Remifentanil can reduce intraoperative movement during tympanoplastic surgery--a retrospective analysis].
abstract: BACKGROUND
  This retrospective study compared remifentanil-sevoflurane anesthesia (RG) with fentanyl-sevoflurane anesthesia (FG) to determine which is accompanied with the lower incidence of intraoperative movement during tympanoplastic surgery under intraoperative facial nerve monitoring.
  
  
  METHODS
  We reviewed 91 patients undergoing elective tympanoplastic surgery under intraoperative facial nerve monitoring. All patients were allocated into two groups; RG (48 subjects) and FG (43 subjects). Although vecuronium was given to facilitate endotracheal intubation, additional muscle relaxants were administered in case of intraoperative movement. The intraoperative consumption of sevoflurane, the additional use of vecuronium, incidence of intraoperative movement, and the effect-site concentration of remifentanil or fentanyl were calculated from the anesthetic records.
  
  
  RESULTS
  Both the consumption of sevoflurane and the additional use of vecuronium were significantly less in the RG group than in the FG group. Incidence of intraoperative movement in RS was lower than that in FG (RG:FG = 6.2:53.5%, P = 0.002).
  
  
  CONCLUSIONS
  According to our data, remifentanil-sevoflurane anesthesia can reduce the incidence of intraoperative movement during tympanoplastic surgery. This lower incidence of intraoperative movement with RG may be owing to the higher effect-site concentration of remifentanil.
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, University of the Ryukyus, Okinawa 903-0215.
authors.forename: Kota
authors.initials: K
authors.lastname: Kamizato
authors.forename: Manabu
authors.initials: M
authors.lastname: Kakinohana
authors.forename: Satoko
authors.initials: S
authors.lastname: Saikawa
authors.forename: Yuiko
authors.initials: Y
authors.lastname: Madanbashi
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Oda
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Sugahara
mesh_terms: D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D005260:Female; D005283:Fentanyl / Q000494:pharmacology; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008738:Methyl Ethers; D008875:Middle Aged; D009068:Movement / Q000187:drug effects*; D010880:Piperidines / Q000494:pharmacology*; D000077208:Remifentanil; D012189:Retrospective Studies; D000077149:Sevoflurane; D014433:Tympanoplasty
chemical_list: D008738:Methyl Ethers; D010880:Piperidines; D000077149:Sevoflurane; D000077208:Remifentanil; D005283:Fentanyl