我们监测20例小儿纯氧通气下吸痰过程中血氧饱和度(SPO_2)的变化,报告如下。1 临床资料和方法 男14例,女6例。年龄1～10岁(4.61±3.26),体重17.1±7.7kg。术前肌注安定0.3mg/kg,阿托品0.01～0.02mg/kg。其中5例氯胺酮6～8mg/kg肌注麻醉后入手术室,静注羟丁酸钠80～100mg/kg,然后 We monitored changes in oxygen saturation (SPO 2) during sputum aspiration in 20 children under pure oxygen ventilation and are reported below. 1 clinical data and methods of male 14 cases, 6 females. Age 1 to 10 years old (4.61 ± 3.26), weight 17.1 ± 7.7kg. Preoperative intramuscular injection of diazepam 0.3mg / kg, atropine 0.01 ~ 0.02mg / kg. 5 cases of ketamine 6 ~ 8mg / kg intramuscularly into the operating room anesthesia, intravenous sodium oxybate 80 ~ 100mg / kg, and then