A randomised controlled trial of bag-valve-mask teaching techniques.

The Clinical Teacher
Charlotte StrzeleckiAdam Dobson

Abstract

Bag-valve-mask (BVM) ventilation is a vital skill in the management of the collapsed patient; however, the quality of BVM ventilation is a cause for concern. Modified techniques, designed to be easier for the novice practitioner, offer an opportunity to improve quality. One such modification is the 'LASOO' (Lift, Apply, Slide, Oppose, Observe) approach, which offers theoretical benefits over the traditionally taught 'CE' (finger shapes) technique. We conducted a randomised controlled trial (RCT) to determine whether LASOO was superior to CE in terms of tidal volume, when taught to novices in the skills-lab setting. We conducted a randomised controlled trial (RCT) to determine whether LASOO was superior to CE in terms of tidal volume, when taught to novices in the skills-lab setting METHODS: A total of 76 undergraduate health care students received a manikin-based teaching session on LASOO or CE. They then delivered 20 breaths (10 with each hand) to a modified airway manikin. The primary outcome was mean tidal volume; secondary outcomes were the proportion of breaths that achieved 150-mL and 400-mL threshold volumes. Subgroup analyses and statistical modelling were conducted for time-point, hand dominance and hand size. The mean...Continue Reading

Citations

Jan 11, 2022·Prehospital Emergency Care : Official Journal of the National Association of EMS Physicians and the National Association of State EMS Directors·John W LyngNichole Bosson

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