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Bain环路没有二氧化碳(CO_2)吸收装置,合适新鲜气流量(FGF)的选择成为麻醉安全的基本条件。FiCO_2我们通过麻醉下连续监测病人吸入气CO_2浓度(FiCO_2和呼气末CO_2浓度(ERCO_2)在不同的FGF条件下的改变和传统公式计算结果进行了对比。资料和方法病例选择:选择20例无心肺疾患的非开胸手术的全麻病人,其中成人10例,年龄20～68岁,小儿10例,年龄4.5～12岁,小儿体重10～30kg。成人麻醉前1小时苯巴比妥钠0.1g、阿托品0.5mg肌注,小儿哌替啶1mg/kg、阿托品0.01mg/kg肌注。硫喷妥钠、安定、琥珀胆碱复合液术中静脉点滴维持麻醉。切皮前均静咏推注芬太尼4μg/k8,固定一台专用麻醉和行纯氧机械控制呼吸。潮气量用wright-
The Bain loop does not have a carbon dioxide (CO2) absorption device and the choice of a suitable fresh air flow (FGF) is essential for the safety of anesthesia. FiCO_2 We continuously monitored changes in patients’ CO 2 concentration (FiCO 2 and end-tidal CO 2 concentrations) under different FGF conditions under anesthesia compared with the results of traditional formulas.Materials and Methods Case Selection: 20 cases without Cardiopulmonary disease in non-thoracic surgery general anesthesia patients, including 10 adults, aged 20 to 68 years old, 10 children, aged 4.5 to 12 years old, children weighing 10 to 30kg 1 hour before anesthesia adult phenobarbital sodium 0.1 g, atropine 0.5mg intramuscular injection, pediatric pethidine 1mg / kg, atropine 0.01mg / kg intramuscular injection of thiopental, stable and succinylcholine compound intravenous drip to maintain anesthesia. Note fentanyl 4μg / k8, fixed a dedicated anesthesia and pure oxygen mechanical control of breathing. Tidal volume wright-