title: A pilot study to evaluate the SMART BAG: a new pressure-responsive, gas-flow limiting bag-valve-mask device.
abstract: Reducing inspiratory flow rate and peak airway pressure may be important to minimize the risk of stomach inflation when ventilating an unprotected airway with positive pressure ventilation. In this study, we assessed the effects of a standard self-inflating bag compared with a new pressure-responsive, inspiratory gas flow-limiting device (SMART BAG) on respiratory mechanics in 60 adult patients undergoing routine induction of anesthesia. Respiratory variables were measured using a pulmonary monitor. The SMART BAG resulted in significantly decreased inspiratory flow rate and peak airway pressure while providing adequate tidal volume delivery.
  
  
  CONCLUSIONS
  The SMART BAG, a new pressure-responsive, peak inspiratory gas flow-limiting bag-valve mask device, limits inspiratory gas flow from up to 120 L/min in a standard self-inflating bag to approximately 40 L/min. It is designed for use by all levels of health care professionals and has been proven in a clinical pilot study to effectively ventilate patients in respiratory arrest.
authors: From the Department of Anesthesiology and Critical Care Medicine, Leopold-Franzens-University, Innsbruck, Austria.
authors: Horst G
authors: HG
authors: Wagner-Berger
authors: Volker
authors: V
authors: Wenzel
authors: Wolfgang G
authors: WG
authors: Voelckel
authors: Klaus
authors: K
authors: Rheinberger
authors: Karl H
authors: KH
authors: Stadlbauer
authors: Tilko
authors: T
authors: Müller
authors: Sven
authors: S
authors: Augenstein
authors: Achim
authors: A
authors: von Goedecke
authors: Karl H
authors: KH
authors: Lindner
authors: Christian
authors: C
authors: Keller
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000399:Air Pressure; D000403:Airway Resistance / Q000502:physiology; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008170:Lung Compliance / Q000502:physiology; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D015656:Respiratory Mechanics / Q000502:physiology; D013270:Stomach / Q000502:physiology; D016683:Supine Position / Q000502:physiology; D013990:Tidal Volume / Q000502:physiology