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Research ArticleOriginal Studies

Comparison of an Oxygen-Powered Flow-Limited Resuscitator to Manual Ventilation With an Adult 1,000-mL Self-Inflating Bag

Thomas A Barnes, Melissa E Catino, Erin C Burns, Wing Kei Chan, Garo Ghazarian, Werner R Henneberg, Kendra E Ruel and Scott A Stanley
Respiratory Care November 2005, 50 (11) 1445-1450;
Thomas A Barnes
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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  • For correspondence: [email protected]
Melissa E Catino
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Erin C Burns
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Wing Kei Chan
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Garo Ghazarian
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Werner R Henneberg
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Kendra E Ruel
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Scott A Stanley
Department of Cardiopulmonary and Exercise Sciences, Bouve College of Health Sciences, Northeastern University, Boston, Massachusetts
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Abstract

BACKGROUND: Positive-pressure ventilation of patients with unprotected airways during cardiopulmonary resuscitation can cause gastric dilation.

OBJECTIVE: Determine if there is a significant difference in volume delivered to lungs and stomach while using an adult 1,000-mL disposable bag-valve-mask (BVM) device and the oxygen-powered, flow-limited Oxylator EMX resuscitator.

METHODS: We used a bench model to simulate a patient with an unprotected airway, consisting of an intubation manikin, lung analog, and simulated lower esophageal sphincter set at an opening pressure of 20 cm H2O. The BVM and the Oxylator were used to provide mask ventilation at a verbally prompted rate of 12 breaths/min.

RESULTS: The volumes delivered with the BVM and the Oxylator to the lungs and stomach were not significantly different: 262 ± 112 mL versus 297 ± 99 mL and 227 ± 199 mL versus 159 ± 73 mL, respectively.

CONCLUSION: Our study found no significant difference between the Oxylator and BVM when comparing tidal volume delivered to lungs and stomach during ventilation of a simulated unconscious nonintubated patient. More research on BVM use and the Oxylator should be done to validate the American Heart Association's guideline recommendations for ventilating unconscious patients with unprotected airways. Research on gastric dilation during cardiopulmonary resuscitation needs to be done with bench models using manikins that simulate chest excursion, bidirectional airway flow, lung impedance, and gastric compliance.

  • cardiopulmonary resuscitation
  • respirator
  • gastric dilation
  • devices
  • disposable equipment

Footnotes

  • Correspondence: Thomas A Barnes EdD RRT FAARC, 100 Dockser Hall, Bouve College of Health Sciences, Northeastern University, Boston MA 02115-5000. E-mail: t.barnes{at}neu.edu.
  • Copyright © 2005 by Daedalus Enterprises Inc.
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Respiratory Care: 50 (11)
Respiratory Care
Vol. 50, Issue 11
1 Nov 2005
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Comparison of an Oxygen-Powered Flow-Limited Resuscitator to Manual Ventilation With an Adult 1,000-mL Self-Inflating Bag
Thomas A Barnes, Melissa E Catino, Erin C Burns, Wing Kei Chan, Garo Ghazarian, Werner R Henneberg, Kendra E Ruel, Scott A Stanley
Respiratory Care Nov 2005, 50 (11) 1445-1450;

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Comparison of an Oxygen-Powered Flow-Limited Resuscitator to Manual Ventilation With an Adult 1,000-mL Self-Inflating Bag
Thomas A Barnes, Melissa E Catino, Erin C Burns, Wing Kei Chan, Garo Ghazarian, Werner R Henneberg, Kendra E Ruel, Scott A Stanley
Respiratory Care Nov 2005, 50 (11) 1445-1450;
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Keywords

  • cardiopulmonary resuscitation
  • respirator
  • gastric dilation
  • devices
  • disposable equipment

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