Mercer M H, Gabbott D A
Department of Anaesthesia, Bristol Royal Infirmary, UK.
Anaesthesia. 1998 Feb;53(2):146-50.
A Combitube airway was inserted into 40 patients undergoing general anaesthesia. A rigid cervical collar was then used to immobilise the neck of each patient. In all 40 subjects adequate ventilation of the lungs was possible in this position as assessed by chest movement and auscultation, measurement of expired tidal volume and maintenance of satisfactory arterial oxygen saturation. In 18/40 patients (45%), blood was present on the Combitube after removal. Reducing the volume of air injected into the proximal balloon of the Combitube appeared to reduce the incidence of airway trauma during insertion.
40例接受全身麻醉的患者插入了双腔食管气道。然后使用硬式颈托固定每位患者的颈部。通过胸部运动和听诊、测量呼出潮气量以及维持满意的动脉血氧饱和度评估，所有40名受试者在该体位下肺部均能充分通气。40例患者中有18例（45%）在取出双腔食管气道后发现有血迹。减少注入双腔食管气道近端气囊的空气量似乎可降低插入过程中气道损伤的发生率。
