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用脉搏氧饱和度心电图仪监测SpO_2和心率,结合动脉血气分析探讨先天性心脏病小儿全麻插管前的吸氧时间。资料和方法 30例先天性心脏病小儿患者,无紫绀,术前心肺功能正常。年龄为4～13岁,体重17～40kg。随机分为三组:Ⅰ组吸氧去氮1分钟;Ⅱ组吸氧去氮2分钟,Ⅲ组吸氧去氮3分钟,麻醉诱导用安定0.6mg/kg、芬太尼10μg/kg、潘库溴铵0.2mg/kg。患儿睫毛反射消失后用面罩吸氧,如果发生呼吸抑制,立即加压吸氧,氧流量8L/min,过度换气。预吸氧结束移去面罩,观察SpO_2和心率的变化。用脉搏氧饱和度心电图仪监测spO_2、血压和心率,记录预吸氧后无通气期spO_2开始下
SpO2 and heart rate were monitored by pulse oximetry and arterial blood gas analysis was used to investigate the oxygen inhalation time before intubation of general anesthesia in children with congenital heart disease. Materials and Methods 30 cases of children with congenital heart disease, no cyanosis, preoperative cardiopulmonary function was normal. Age 4 to 13 years old, weight 17 ~ 40kg. Randomly divided into three groups: Ⅰ group of oxygen and nitrogen for 1 minute; Ⅱ group of oxygen and nitrogen for 2 minutes, Ⅲ group of oxygen and nitrogen for 3 minutes, induction of anesthesia with diazepam 0.6mg / kg, fentanyl 10μg / kg, pan Cibonium bromide 0.2 mg / kg. Children with eyelashes reflex disappeared mask oxygen, respiratory depression occurred immediately pressurized oxygen, oxygen flow 8L / min, hyperventilation. Pre-oxygenation Remove the mask and observe changes in SpO2 and heart rate. SpO2, blood pressure and heart rate were monitored by pulse oximetry, and no ventilation was recorded after preoxygenation