Shimoda O, Ikuta Y, Isayama S, Sakamoto M, Terasaki H
Department of Anesthesiology, Kumamoto University School of Medicine, Japan.
Br J Anaesth. 1997 Dec;79(6):714-8. doi: 10.1093/bja/79.6.714.
We studied 22 female patients (ASA I or II) to investigate if laryngoscopy and intubation induced the skin vasomotor reflex (SVmR), and to compare the effects of the McCoy and Macintosh blades on the SVmR. Anaesthesia was induced with fentanyl, midazolam, vecuronium and nitrous oxide. In 11 patients, the vocal cords were seen for 3 s with the McCoy blade. Two minutes later, laryngoscopy was performed with the Macintosh blade and the trachea was intubated. In the other 11 patients, the first and second laryngoscopies, respectively, were performed with the Macintosh and McCoy blades. Laryngoscopy alone and intubation with laryngoscopy significantly reduced skin blood flow in the ring finger of all patients (P < 0.01), indicating that both procedures provoked the SVmR. The magnitude of the SVmR and haemodynamic changes did not differ significantly between the two groups.
我们研究了22例女性患者（ASA I或II级），以调查喉镜检查和气管插管是否会诱发皮肤血管运动反射（SVmR），并比较麦考伊喉镜叶片和麦金托什喉镜叶片对SVmR的影响。采用芬太尼、咪达唑仑、维库溴铵和氧化亚氮诱导麻醉。11例患者使用麦考伊喉镜叶片观察声带3秒。两分钟后，使用麦金托什喉镜叶片进行喉镜检查并气管插管。另外11例患者，第一次和第二次喉镜检查分别使用麦金托什喉镜叶片和麦考伊喉镜叶片。单纯喉镜检查和喉镜引导下插管均显著降低了所有患者无名指的皮肤血流量（P<0.01），表明这两种操作均诱发了SVmR。两组之间SVmR的幅度和血流动力学变化无显著差异。
