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多年来6个月至6岁小儿常用经直肠甲己炔巴比妥钠(MHS)诱导.作者用血氧饱和度(SpO_2)连续监测并评估这一诱导方法的安全性.将Nellcor N-100脉搏血氧仪置于病人手指或足趾连续监测SpO_2及HR并记录.全麻前不用氧气及其它药物.SpO_2严重降低的标准为≤85%、≥30sec或<95%、≥1min.研究对象49例,其中44例用直肠MHS诱导成功.病人平均年龄2.7±1.6岁,体重13.8±4.3kg,Hct36.4±2.5%.MHS用量27.0±3.0mg·kg~(-1).2例因诱导前未置放测氧探头;5例给2次MHS未能麻醉,上述7例均从分析资料中排除.又由于11例未作连续记录故未观察到SpO_2下降.故仅31例可供作SpO_2分析.注用MHS至产生麻醉诱导(睫毛反射消
Induction of rectal hexobarbital sodium (MHS) was commonly used in children over the years 6 months to 6 years old.The authors continuously monitored and evaluated the safety of this induction method using SpO_2.The Nellcor N-100 The pulse oximeter was placed on the patient’s finger or toe for continuous monitoring of SpO2 and HR and recorded without oxygen and other drugs prior to general anesthesia.Significant reduction of SpO2 was <85%, ≥30 sec or <95%, ≥1 min. 49 cases, of which 44 cases were successfully induced by rectal MHS.The average age of patients was 2.7 ± 1.6 years old, body weight 13.8 ± 4.3kg, Hct 36.4 ± 2.5% .MHS dosage was 27.0 ± 3.0mg · kg -1 No oxygen probe was placed before induction; 5 patients were given 2 times of MHS and could not be anesthetized. The above 7 cases were excluded from the analysis data, and since 11 cases did not record continuous decrease of SpO_2, only 31 cases were available For SpO_2 analysis, use MHS to induce anesthesia (eyelash reflex