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Influence of head and neck position on the performance of supraglottic airway devices: A systematic review and meta-analysis

Authors
 Min-Soo Kim  ;  Jin Ha Park  ;  Ki-Young Lee  ;  Seung Ho Choi  ;  Hwan Ho Jung  ;  Ji-Ho Kim  ;  Bora Lee 
Citation
 PLoS One, Vol.14(5) : e0216673, 2019 
Journal Title
 PLoS One 
Issue Date
2019
Abstract
BACKGROUND: Changes in head and neck position may significantly affect the performance of supraglottic airway devices (SADs) by altering the pharyngeal structure. PURPOSE: This systematic review and meta-analysis aimed to elucidate the effect of changes in head and neck position on performance of SADs. DATA SOURCE: Bibliographic databases, including PubMed, EMBASE, the Cochrane library, and the Web of Science. STUDY ELIGIBILITY CRITERIA: Prospective studies investigating the effects of head and neck positions on the performance of SADs. METHODS: A random effect model was applied in the all analyses. Subgroup analysis was performed according to the type of device and the age of patient. The oropharyngeal leak pressure was the primary outcome measure. Secondary outcome measures included peak inspiratory pressure, fibreoptic view, and ventilation score (PROSPERO, CRD42017076971). RESULTS: Seventeen studies met the eligibility criteria. Overall, the oropharyngeal leak pressure significantly increased (mean difference 4.07 cmH2O; 95% confidence interval 3.30 to 4.84) during neck flexion with adverse effects on ventilation and fibreoptic view. Conversely, the oropharyngeal leak pressure decreased (mean difference -4.05; 95% confidence interval -4.90 to -3.20) during neck extension with no significant effect on ventilation or fibreoptic view. Rotation of the head and neck did not significantly affect SAD performance. CONCLUSIONS: The reduced oropharyngeal leak pressure in the extended neck position was not associated with impaired ventilation except with the air-Q self-pressurizing airway. The flexed neck position significantly worsens ventilation and the alignment between the SAD and glottis despite improving the seal except with the air-Q self-pressurizing airway and LMA Proseal.
Files in This Item:
T201902072.pdf Download
DOI
10.1371/journal.pone.0216673
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Min Soo(김민수) ORCID logo https://orcid.org/0000-0001-8760-4568
Park, Jin Ha(박진하) ORCID logo https://orcid.org/0000-0002-1398-3304
Lee, Ki Young(이기영) ORCID logo https://orcid.org/0000-0003-4893-3195
Lee, Bo Ra(이보라) ORCID logo https://orcid.org/0000-0002-7699-967X
Choi, Seung Ho(최승호) ORCID logo https://orcid.org/0000-0001-8442-4406
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/170311
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