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目的：分析小儿非气管插管麻醉中１１２例呼吸意外的原因。方法：采用回顾性分析，对小儿各年龄段及呼吸意外发生的时机进行统计学分析。结果：诱导期呼吸意外发生率与手术期及苏醒期相比有显著差异（Ｐ＜０．０１），３个月～２岁年龄段与３岁～４岁及５岁～６岁年龄段比较有显著性差异（Ｐ＜０．０１）。结论：呼吸意外大多发生在麻醉早期阶段，年龄愈小愈易发生呼吸意外，早期发现呼吸意外的有效监测是ＳｐＯ２。
Objective: To analyze the causes of respiratory accident in 112 cases of pediatric non-tracheal intubation anesthesia. Methods: A retrospective analysis of children of all ages and respiratory accidents occurred at a statistical timing. Results: The incidence of respiratory accident during induction period was significantly different from that during operation and recovery (P <0.01). Compared with 3 to 4 years old and 5 to 6 years old group There was significant difference (P <0.01). Conclusion: Most respiratory accidents occur in the early stage of anesthesia. The younger the younger, the more likely to have respiratory accidents. The early detection of respiratory accident is the effective monitoring of SpO2.