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Incidence of and risk factors for difficult ventilation via a supraglottic airway device in a population of 14 480 patients from South‐East Asia
Author(s) -
Saito T.,
Liu W.,
Chew S. T. H.,
Ti L. K.
Publication year - 2015
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/anae.13153
Subject(s) - medicine , laryngospasm , airway , incidence (geometry) , anesthesia , bronchospasm , ventilation (architecture) , airway management , supraglottic airway , population , airway obstruction , surgery , asthma , mechanical engineering , physics , environmental health , optics , engineering
Summary Difficult airway practice guidelines include the use of a supraglottic airway device as part of the armamentarium to provide and maintain ventilation and oxygenation. We retrospectively reviewed 14 480 patients aged ≥ 18 years who underwent general anaesthesia. We identified 74 (0.5%) patients whose lungs were identified as having been difficult to ventilate via a supraglottic airway device, and 29 (0.2%) patients in whom device placement failed. Multivariate analysis identified four risk factors for difficult ventilation via a supraglottic airway device: male sex ( OR 1.75, 95% CI 1.07–2.86, p = 0.02); age > 45 years ( OR 1.70, 95% CI 1.01–2.86, p = 0.04); short thyromental distance ( OR 4.35, 95% CI 2.31–8.17, p < 0.001); and limited neck movement ( OR 2.75, 95% CI 1.02–7.44, p = 0.04). Adverse respiratory events including oxygen desaturation, hypercapnoea, laryngospasm, and bronchospasm occurred in 17 patients (22%). The incidence of difficult ventilation via a supraglottic airway device was 0.5% in a large cohort of South‐East Asian patients.