Bourgain J L, McGee K, Cosset M F, Bromley L, Meistelman C
Service d'Anesthésie, Institut Gustave-Roussy, Villejuif, France.
Br J Anaesth. 1990 Mar;64(3):327-30. doi: 10.1093/bja/64.3.327.
To improve ventilation monitoring during direct laryngoscopy, we have developed a high frequency jet ventilator which allows the aspiration of tracheal gas for carbon dioxide analysis (PtCO2) through the injector after stopping the ventilator. In 41 patients undergoing direct laryngoscopy, PaCO2 and PtCO2 were measured simultaneously during high frequency jet ventilation under general anaesthesia. PtCO2 and PaCO2 correlated significantly (r = 0.88), but PtCO2 underestimated PaCO2 by 0.84 (SD 0.72) kPa. The arterial to tracheal PCO2 difference was influenced by airway obstruction.
为改善直接喉镜检查期间的通气监测，我们研发了一种高频喷射呼吸机，该呼吸机可在停止通气后通过注射器抽吸气管气体以进行二氧化碳分析（呼气末二氧化碳分压）。在41例接受直接喉镜检查的患者中，在全身麻醉下进行高频喷射通气时同时测量动脉血二氧化碳分压和呼气末二氧化碳分压。呼气末二氧化碳分压与动脉血二氧化碳分压显著相关（r = 0.88），但呼气末二氧化碳分压比动脉血二氧化碳分压低估了0.84（标准差0.72）kPa。动脉血与气管内二氧化碳分压差值受气道梗阻影响。
