Crossover Assessment of Intraoral and Cuffed Ventilation by Emergency Responders.

Abstract:

OBJECTIVES:A cuffed bag valve mask (BVM) is the most common device used by emergency medical responders to ventilate patients. The BVM can be difficult for users to seal around the patient's mouth and nose. An intraoral mask (IOM) with snorkel-like design may facilitate quicker and better ventilation particularly under austere conditions. METHODS:Both a BVM and IOM were utilized by 27 trained emergency medical technicians and paramedics to ventilate a lightly embalmed cadaver. Ventilation efficacy, workload, and usability were assessed for both devices across four study conditions. RESULTS:The IOM was superior to the BVM in delivered tidal volume ratio (measure of leak, p < 0.03) and minute ventilation (p < 0.0001). Workload, ergonomic and usability assessments indicated that the IOM facilitated gripping through the reduced hand interface size (p < 0.01), decreased user effort (p < 0.001), and reduced upper limb workload (p = 0.0088). CONCLUSIONS:In the assessed model, the IOM represented a better choice for airway management than the standard cuffed BVM. An emergency medical device that is intuitive, efficacious and less demanding has the potential to reduce responder stress and improve resuscitation efforts, especially during austere rescue and patient transport.

journal_name

Mil Med

journal_title

Military medicine

authors

McCrory B,Lowndes BR,Thompson DL,Wadman MC,Sztajnkrycer MD,Walker R,Lomneth CS,Hallbeck MS

doi

10.1093/milmed/usy304

subject

Has Abstract

pub_date

2019-03-01 00:00:00

pages

310-317

issue

Suppl 1

eissn

0026-4075

issn

1930-613X

pii

5418671

journal_volume

184

pub_type

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