目的:研究一细导管法防治术中气道异物变位性窒息.方法:在手术钳取异物前预先于健侧支气管内放一细导管,并通过此导管在手术期间持续供氧.结果:细导管法有效地预防了气道异物变位性窒息的发生.它能防止脱落的气道异物对健侧支气管的完全密闭性再阻塞,可持续供氧.由于细导管本身可在支气管壁与异物之间产生一个间隙,又可为气道提供部分有效通气,同时,也为再次钳取异物创造良好的条件.结论:细导管法可有效防治气道异物变位性窒息,临床上有实用价值.“,”Objective:The purpose of this paper was to investigate the effect of a catheter on preventing children from suffocation due to shifting position of foreign bodies in airway during operation. Methods:[ A catheter was placed in the contralateral bronchus before removing the foreign body and oxygen was insufflated through the catheter during the course of the operation. Results: The catheter effectively protected the non involved bronchus from obstruction thr...