喉罩气道的临床研究与应用

A Clinical Study of the Laryngeal Mask Airway

总结４２例择期整形外科手术病人应用喉罩气道（ＬＭＡ）的临床体会。重点观察了喉罩的置入情况、置入时的循环反应、不同诱导方法时置入条件以及用纤维喉镜观察喉罩的到位和喉罩内声门和会厌的情况。作者体会：（１）ＬＭＡ操作简单，置入容易，损伤小，置入时对循环系统无明显影响；（２）吸入和静吸复合诱导均可获得良好置入条件，其中吸入诱导效果最好，是小儿诱导的首选方法；（３）解决ＬＭＡ置入中咽后壁受阻的最有效方法是借助于直接喉镜；（４）ＬＭＡ使用中有随时发生气道梗阻的危险，在会厌部分阻挡喉罩内导管开口处的病人更易发生，临床上必须注意。

he laryngeal mask airway(LMA)was used in 42 patients undergoing elective plastic surgery. The insertionof LMA and its effect on the circulatory system and the insertion conditions using diffrent induction methods werestudied. The actual position of the LMA, the vocal cords and epiglottis were observed by fibreoptic laryngocope.Conclutions:(1)The manipulation of the LMA is relatively easy with less damage and circulatory response.(2)Either inhaled or intravenous-inhalation induction can offer an adequate condition for its insertion,but the formeris the first choice in children.(3)Care must be taken to avoid airway obstruction at all time.