关键词: 气管异物；儿童；利多卡因；麻醉

Abstract:

Objective     To compare children with tracheal foreign body removal surgery, the inhalation of high oxygen surface anesthesia of lidocaine or tetracaine throat spray, which is more conducive to suppress airway reflex. Methods     60 cases were randomly divided into two groups, group A(n=30) was given nebulized  lidocaine and group B(n=30) was given tetracaine spray. Patient′s differences in MAP, HR, SPO2 and adverse effects during the induction of anesthesia  and  bronchiacopy  were observed. Results     There were significant differences of MAP, HR and SPO2 between the two groups(P<0.01). While the rigid bronchoscope stayed inside the trachea, the rate of breath holding, tracheal irritation and spasm  in group B was more common than group A (P<0.01). Conclusion      In the removal of bronchial foreign bodies in children,  nebulized lidocaine can effectively suppress  the reflection of the trachea. Therefore, the operation can proceed smoothly.

Key words: Bronchial foreign bodies; Child； lidocaine； Anesthesia