Academic emergency medicine : official journal of the Society for Academic Emergency Medicine
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Randomized Controlled Trial Comparative Study Clinical Trial
In-vitro comparison of bag-valve-mask and the manually triggered oxygen-powered breathing device.
To determine whether tidal volume, intrapleural pressure, and gastric volume differ when the bag--valve-- mask (BVM) and the manually triggered oxygen powered breathing device (MTBD) are used in the settings of normal and decreased lung compliance. ⋯ In this model, tidal volumes and intrapleural pressures were similar for the two devices. When compliance was normal, no participant insufflated the stomach with the MTBD, while the gastric volume with BVM ventilation averaged 1.3 L. With decreased compliance, the MTBD again delivered significantly less gastric volume than the BVM (1.1 vs. 3.7 L, respectively). These findings favoring MTBD ventilation require corroboration in vivo.