Yentis S M, Lee D J
Magill Department of Anaesthetics, Chelsea & Westminster Hospital, London, UK.
Anaesthesia. 1998 Nov;53(11):1041-4. doi: 10.1046/j.1365-2044.1998.00605.x.
A modified version of the Cormack and Lehane scoring system was prospectively evaluated in 663 patients requiring tracheal intubation. In the modified system, grade 2 (only part of the glottis visible) was divided into 2a (part of the cords visible) and 2b (only the arytenoids or the very posterior origin of the cords visible). One hundred and sixty-two intubations (24.4%) were scored as grade 2a and 43 (6.5%) as grade 2b, of which seven (4.3%) and 29 (67.4%), respectively, were difficult, defined as requiring more than one laryngoscopy or the use of specialist equipment. Grade 2b denotes a laryngoscopic view that is relatively common and is often associated with difficulty passing a tracheal tube. The modified scoring system thus provides more information than the original Cormack and Lehane system and its use should be considered when recording the ease of tracheal intubation in the anaesthetic record or in studies of tracheal intubation.
在663例需要气管插管的患者中，前瞻性评估了改良版的科马克和莱汉内评分系统。在改良系统中，2级（仅可见部分声门）被分为2a级（可见部分声带）和2b级（仅可见杓状软骨或声带的最后端起始处）。162次插管（24.4%）被评为2a级，43次（6.5%）被评为2b级，其中分别有7次（4.3%）和29次（67.4%）插管困难，插管困难定义为需要进行不止一次喉镜检查或使用专业设备。2b级表示一种相对常见的喉镜视野，并且通常与气管导管插入困难相关。因此，改良评分系统比原始的科马克和莱汉内系统提供了更多信息，在麻醉记录或气管插管研究中记录气管插管的难易程度时，应考虑使用该系统。
