The laryngeal mask airway--clinical experience.

C. L. Ma*, C. Chen, D. S. Wong, Y. L. Hui, P. P. Tan

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review


The laryngeal mask airway (LMA), a new type of airway, when it is inserted blindly into the hypopharynx forms a seal around the larynx and allows easy and convenient spontaneous or controlled positive pressure ventilation. A clinical application of the LMA to 70 surgical patients in our hospital have been evaluated. LMA was successfully applied to 68 (97%) patients who all received general anesthesia with unobstructed controlled ventilation. The patency of the airway did not change throughout the course of anesthesia. There were 2 patients whose airway was obstructed at the first attempt due to downfolding of epiglottis; in one of them the obstruction was confirmed by flexible fibreoptic laryngoscopy. Subsequent placement was successful in these 2 patients. Insertion failure was seen in 2 patients respectively due to small mouth and excessive salivation. The placement of LMA does not require laryngoscopy and there is no fear of misplacement in the esophagus. It becomes obvious that the LMA would substantially gain a place in the armamentarium in anesthesia and we think that its use would be of interest to anesthesiologists.

Original languageEnglish
Pages (from-to)697-702
Number of pages6
JournalMa zui xue za zhi = Anaesthesiologica Sinica
Issue number4
StatePublished - 12 1991
Externally publishedYes


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