Comparison of three methods for the confirmation of laryngeal mask airway placement in female patients undergoing gynecologic surgery

Ultrasound in Medicine & Biology
Zhen-feng ZhouMin Yan

Abstract

The laryngeal mask airway (LMA) is a supraglottic device that is commonly used to provide lung ventilation during general anesthesia. LMA placement needs to be confirmed to provide adequate lung ventilation. To investigate the feasibility of using ultrasound examination, compared with clinical tests and fiberoptic laryngoscopy, to confirm LMA placement, we performed a clinical study of 64 female patients classified as American Society of Anesthesiologists Physical Status I or II who were scheduled for gynecologic surgery with LMA insertion for airway management. After insertion, placement of the LMA was confirmed by clinical tests, ultrasound examination and fiberoptic laryngoscopy. Of the 64 women, placement was confirmed as acceptable in 89.1% by clinical tests, in 59.4% by fiberoptic laryngoscope assessment and in 67.2% by ultrasound examination. With respect to patients with oropharyngeal leaks classified as high, there were no differences in confirmation of acceptable placement between clinical tests and ultrasound examinations (p = 0.092), but the number of patients determined to have acceptable placement by ultrasound examination was greater than that determined by fiberoptic laryngoscopy (p = 0.034). Thus, ultrasound ex...Continue Reading

References

Aug 1, 1983·British Journal of Anaesthesia·A I Brain
Sep 4, 2004·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Robert L CampbellMelissa Hotchkiss
Feb 24, 2006·Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine·Blake WeaverMichael Blaivas
Apr 21, 2007·Critical Care Medicine·Alan Sustić
Aug 3, 2010·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Seung H Yu, O Ross Beirne
Nov 19, 2011·Acta Anaesthesiologica Scandinavica·M S Kristensen
Apr 11, 2013·European Journal of Anaesthesiology·Anne Foucher-LezlaLaurent Beydon

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Citations

Oct 6, 2020·Journal of Anaesthesiology, Clinical Pharmacology·Sachin E AjithanMukul C Kapoor
Mar 17, 2020·Journal of Anaesthesiology, Clinical Pharmacology·Kinshuki JainSushma Bhatnagar

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