경구기관삽관 시 기관삽관 기구에 따른 경추 움직임 비교: 마네킨 예비 연구
Comparison of Cervical Spine Movement by Airway Equipment during Orotracheal Intubation: A Manikin Pilot Study
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Background: In patients with limited cervical spine movement, equipment for orotracheal intubation should achieve sufficient laryngeal exposure with the least cervical spine movement. This study was designed to compare movement of the cervical spine during the orotracheal intubation with various intubating equipment. Methods: Twelve emergency physicians & residents with a total experience of ＞50 cases of endotracheal intubation in two emergency centers were assigned to perform orotracheal intubation with four different airway devices,including the Macintosh laryngoscope (ML), DCI video laryngoscope (DCI), Airway Scope (AWS) and Levitan Scope (LS), using the same manikin (AmbuⓇ airway management trainer) in random sequences. Movement of the C-spine was examined by measuring the angle formed by two lines which are parallel to the anterior surface of the C2 and C7 vertebrae bodies. The angle was measured when Cormack-Lehane grade II glottis exposure was achieved during intubation. Results: Mean cervical spine movements were 37.6 ± 9.2o, 32.2 ± 14.2o, 32.2 ± 6.45o and 17.4 ± 10.0o with the ML, DCI (p = 0.347), AWS (p = 0.094), and LS (p ＜ 0.001), respectively, compared to that of ML. Cervical spine movement by LS was 54% less than that by ML. LS produced less cervical spine movement in comparison to DCI (p = 0.013) and AWS (p = 0.001). Conclusions: The Levitan Scope produced less movement of the cervical spine when compared to the Macintosh laryngoscope, DCI video-laryngoscope and Airway Scope during orotracheal intubation in a single airway training manikin model.
Abstract
Background: In patients with limited cervical spine movement, equipment for orotracheal intubation should achieve sufficient laryngeal exposure with the least cervical spine movement. This study was designed to compare movement of the cervical spine during the orotracheal intubation with various intubating equipment. Methods: Twelve emergency physicians & residents with a total experience of ＞50 cases of endotracheal intubation in two emergency centers were assigned to perform orotracheal intubation with four different airway devices,including the Macintosh laryngoscope (ML), DCI video laryngoscope (DCI), Airway Scope (AWS) and Levitan Scope (LS), using the same manikin (AmbuⓇ airway management trainer) in random sequences. Movement of the C-spine was examined by measuring the angle formed by two lines which are parallel to the anterior surface of the C2 and C7 vertebrae bodies. The angle was measured when Cormack-Lehane grade II glottis exposure was achieved during intubation. Results: Mean cervical spine movements were 37.6 ± 9.2o, 32.2 ± 14.2o, 32.2 ± 6.45o and 17.4 ± 10.0o with the ML, DCI (p = 0.347), AWS (p = 0.094), and LS (p ＜ 0.001), respectively, compared to that of ML. Cervical spine movement by LS was 54% less than that by ML. LS produced less cervical spine movement in comparison to DCI (p = 0.013) and AWS (p = 0.001). Conclusions: The Levitan Scope produced less movement of the cervical spine when compared to the Macintosh laryngoscope, DCI video-laryngoscope and Airway Scope during orotracheal intubation in a single airway training manikin model.
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