Muscle relaxant facilitates i-gel insertion by novice doctors: A prospective randomized controlled trial

作者：Hattori Kazuo; Komasawa Nobuyasu; Miyazaki Yu; Kido Haruki; Deguchi Shiho; Minami Toshiaki

来源：Journal of Clinical Anesthesia, 2016, 33: 218-222.

DOI：10.1016/j.jclinane.2016.03.058

• i-gel
• Muscle relaxant
• Novice doctor
• Randomized clinical trial

Study 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.
Design: Randomized clinical trial.
Setting: Operating room.
Patients: Seventy adult patients scheduled for elective surgery under general anesthesia.
Interventions: 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 0.9 mg kg I rocuronium was administered in the MR group.
Measurements: The number of attempts to successful insertion, sealing pressure, and subjective difficulty of insertion were compared between the groups.
Main 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 cmH(2)O; C group, 18.7 +/- 3.2 cmH(2)O, P <.001). Subjective difficulty of insertion was significantly lower in the MR group than in the C group (C group, 72.4 +/- 19.0 mm; MR group, 29.4 +/- 18.3 mm; 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.

• 出版日期2016-9