Frerk C M
Department of Anaesthetics, Withington Hospital, West Didsbury, Manchester.
Anaesthesia. 1991 Dec;46(12):1005-8. doi: 10.1111/j.1365-2044.1991.tb09909.x.
Two pre-operative tests for the prediction of difficult intubation are assessed. A modified Mallampati test and a measurement of thyromental distance were performed at the pre-operative visit of 244 patients whose tracheas were subsequently intubated under general anaesthesia. Patients in whom the posterior pharyngeal wall could not be visualised below the soft palate, who also had a distance of less than 7 cm between the prominence of the thyroid cartilage and the bony point of the chin proved significantly more likely to present difficulty with intubation. The performance of these two simple tests on all patients before operation should allow the majority of cases of difficult intubation to be anticipated.
对两种预测困难插管的术前测试进行了评估。在244例随后在全身麻醉下进行气管插管的患者术前访视时，进行了改良马兰帕蒂测试和甲颏距离测量。软腭以下无法看到咽后壁，且甲状软骨突出部与下巴骨性点之间距离小于7cm的患者，插管困难的可能性显著更高。术前对所有患者进行这两种简单测试，应能预见到大多数困难插管病例。
