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Clinical efficacy of the classic laryngeal mask airway in elderly patients: a comparison with young adult patients

 Eun Mi Kim  ;  Min-Soo Kim  ;  Bon-Nyeo Koo  ;  Jeong-Rim Lee  ;  Young Sub Lee  ;  Jae Hoon Lee 
 KOREAN JOURNAL OF ANESTHESIOLOGY, Vol.68(6) : 568-574, 2015 
Journal Title
Issue Date
Aged ; Laryngeal masks ; Treatment outcome
BACKGROUND: The elderly have been reported to show anatomical and physiologic changes in the upper airway, which might affect the supraglottic airway (SGA) performance in geriatric populations. This study aimed to evaluate the clinical efficacy of the classic laryngeal mask airway (LMA-C) in the elderly compared with young adult patients. METHODS: Fifty patients aged 65-85 years (elderly group) and 50 patients aged 20-40 years (young group) who were scheduled for surgery using the LMA-C for general anesthesia were enrolled in this prospective, non-randomized, comparative study. Manipulations required during insertion, success rate, insertion time, oropharyngeal leak pressure, gastric insufflation, and intraoperative inadequate ventilation with the LMA-C were assessed. Fiberoptic evaluation was used to determine the position of the LMA-C. RESULTS: In the elderly group, the insertion success rate on the first attempt was significantly lower than that in the young group (84 vs. 96%, P = 0.02). The insertion time in the elderly group was significantly longer than that in the young group (28.5 ± 19.6 vs. 22.2 ± 6.4 seconds, P = 0.001). However, there was no difference in oropharyngeal leak pressure or fiberoptic grade between the two groups after proper placement of the LMA-C. During the surgery, inadequate ventilation events occurred more frequently in the elderly group than in the young group (31.3 vs. 4.0%, P < 0.001). CONCLUSIONS: The clinical efficacy of the LMA-C in elderly patients was inferior to that in young adult patients. Therefore, further studies are required to determine the type of SGA that can provide excellent clinical efficacy in the geriatric population.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Koo, Bon-Nyeo(구본녀) ORCID logo https://orcid.org/0000-0002-3189-1673
Kim, Min Soo(김민수) ORCID logo https://orcid.org/0000-0001-8760-4568
Lee, Jae Hoon(이재훈) ORCID logo https://orcid.org/0000-0001-6679-2782
Lee, Jeong Rim(이정림) ORCID logo https://orcid.org/0000-0002-7425-0462
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