title: Muscle relaxant facilitates i-gel insertion by novice doctors: A prospective randomized controlled trial.
abstract: OBJECTIVE
  This study aimed to determine whether muscle relaxants facilitates insertion efficacy of the i-gel supraglottic device (i-gel) by novice doctors in anesthetized patients.
  
  
  METHODS
  Randomized clinical trial.
  
  
  METHODS
  Operating room.
  
  
  METHODS
  Seventy adult patients scheduled for elective surgery under general anesthesia.
  
  
  METHODS
  Seventy adult patients were assigned to the rocuronium (MR group; 35 patients) or control group (C group; 35 patients). Anesthesia was induced with propofol and remifentanil, and 0.9mgkg(-1) rocuronium was administered in the MR group.
  
  
  METHODS
  The number of attempts to successful insertion, sealing pressure, and subjective difficulty of insertion were compared between the groups.
  
  
  RESULTS
  The total number of insertion attempts were as follows: one (MR group, 17 cases; C group, 4 cases), two (MR group, 13 cases; C group, 14 cases), three (MR group, 4 cases; C group, 14 cases), and failure (MR group, 1 case; C group, 3 cases), which was significantly different (P<.001). Sealing pressure was significantly higher in the MR group than in the C group (MR group, 22.1±5.4 cmH2O; C group, 18.7±3.2 cmH2O, P<.001). Subjective difficulty of insertion was significantly lower in the MR group than in the C group (C group, 72.4±19.0mm; MR group, 29.4±18.3mm; P<.001).
  
  
  CONCLUSIONS
  Our randomized clinical trial suggests that muscle relaxation facilitates i-gel insertion efficacy in anesthetized patients, as assessed by successful insertion rate, sealing pressure, and subjective difficulty of insertion.
authors.affiliation: Department of Anesthesiology, Osaka Medical College.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Hattori
authors.affiliation: Department of Anesthesiology, Osaka Medical College. Electronic address: ane078@osaka-med.ac.jp.
authors.forename: Nobuyasu
authors.initials: N
authors.lastname: Komasawa
authors.affiliation: Department of Anesthesiology, Osaka Medical College.
authors.forename: Yu
authors.initials: Y
authors.lastname: Miyazaki
authors.affiliation: Department of Anesthesiology, Osaka Medical College.
authors.forename: Haruki
authors.initials: H
authors.lastname: Kido
authors.affiliation: Department of Anesthesiology, Osaka Medical College.
authors.forename: Shiho
authors.initials: S
authors.lastname: Deguchi
authors.affiliation: Department of Anesthesiology, Osaka Medical College.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Minami
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D058109:Airway Management / Q000379:methods*; D000732:Androstanols; D000771:Anesthesia, Intravenous; D000072080:Anesthesiologists; D018686:Anesthetics, Intravenous; D002983:Clinical Competence; D005260:Female; D006685:Hoarseness / Q000453:epidemiology; D006801:Humans; D007442:Intubation, Intratracheal / Q000379:methods*; D008297:Male; D008875:Middle Aged; D003473:Neuromuscular Nondepolarizing Agents; D010149:Postoperative Pain / Q000453:epidemiology; D010880:Piperidines; D011183:Postoperative Complications / Q000453:epidemiology; D015742:Propofol; D011446:Prospective Studies; D000077208:Remifentanil; D012121:Respiration, Artificial; D000077123:Rocuronium; D055815:Young Adult
chemical_list: D000732:Androstanols; D018686:Anesthetics, Intravenous; D003473:Neuromuscular Nondepolarizing Agents; D010880:Piperidines; D000077208:Remifentanil; D000077123:Rocuronium; D015742:Propofol
keywords: Muscle relaxant; Novice doctor; Randomized clinical trial; i-gel