Sakai T, Konishi A, Nishiyama T, Higashizawa T, Bito H
Department of Anesthesiology, University of Hirosaki School of Medicine.
Masui. 1998 Aug;47(8):998-1001.
Effectiveness in visualization of the vocal cord during orotracheal intubation with McCoy (McC) compared with Macintosh (Min) and Miller (Mil) blades were investigated. After an institutional review board approval, 117 patients for elective surgery under general anesthesia requiring tracheal intubation were investigated. Five board certified anesthesiologists tried to visualize the vocal cord of a patient three times with the three different types of laryngoscope. Total of 351 intubation attempts were studied. The view obtained at laryngoscopy with each of the three blades was recorded as follows. Grade 1. If most of the glottis is visible. Grade 2. If only the posterior extremity of the glottis is visible. Grade 3. If no part of the glottis can be seen. Grade 4. If not even the epiglottis can be exposed. Eight-two Grade 1 views were obtained with McC, 72 with Mil and 47 with Min, respectively. Thirty-three Grade 2 views were obtained with McC, 36 with Min and 24 with Mil. Two Grade 3 views with McC, 34 with Min and 14 with Mil were obtained. Seven Grade 4 views were obtained with Mil. The grades of laryngeal visualization with McC were significantly lower than those with Min and Mil.
研究了在经口气管插管过程中，使用麦考伊喉镜（McC）与麦金托什喉镜（Min）和米勒喉镜（Mil）相比，在可视化声带方面的有效性。经机构审查委员会批准后，对117例需要气管插管的全身麻醉择期手术患者进行了研究。五位获得委员会认证的麻醉医生使用三种不同类型的喉镜对患者的声带进行了三次可视化尝试。总共研究了351次插管尝试。使用三种喉镜中的每一种进行喉镜检查时获得的视野记录如下。1级：如果声门大部分可见。2级：如果仅可见声门的后端。3级：如果看不到声门的任何部分。4级：如果甚至会厌都无法暴露。使用McC分别获得了82次1级视野，使用Mil获得了72次，使用Min获得了47次。使用McC获得了33次2级视野，使用Min获得了36次，使用Mil获得了24次。使用McC获得了2次3级视野，使用Min获得了34次，使用Mil获得了14次。使用Mil获得了7次4级视野。使用McC进行喉镜可视化的等级明显低于使用Min和Mil的等级。
