The Korean Journal of Emergency Medical Services (한국응급구조학회지)

The Korea Society of Emergency Medical Services (한국응급구조학회)
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Comparison of tidal volume of two different bag squeezing techniques in endotracheal intubation settings

기관내 삽관 후 백 압착법에 따른 호흡량 비교

  • Kang, Min-Ju (Department of Paramedic Science, Korea National University of Transportation) ;
  • Tak, Yang-Ju (Department of Paramedic Science, Korea National University of Transportation)
  • 강민주 (한국교통대학교 응급구조학과) ;
  • 탁양주 (한국교통대학교 응급구조학과)
  • Received : 2017.03.15
  • Accepted : 2017.04.17
  • Published : 2017.04.30
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Abstract

Purpose: There is no recommended bag-squeezing technique for emergency medical providers to maintain correct tidal volume during mechanical ventilation. This study compared the tidal volume of two different bag-squeezing techniques during mechanical ventilation. Methods: The subjects were 38 paramedic students who were trained in airway management techniques. Two different bag-squeezing techniques were used with a bag valve mask on an intubated manikin: a conventional technique and a finger-marked, in which the bag is squeezed until the thumb and the middle finger come into contact. Hand size and grip strength were measured and analyzed statistically. Results: The mean tidal volumes for the finger-marked were significantly higher than those for the conventional technique ($542.6{\pm}35.92mL$ versus $338.0{\pm}111.15 mL$, p<.001). There was a correlation between the two techniques (Pearson $x^2=1.160$, p<.001). The subject's characteristics, including sex, hand size, and grip strength, showed no correlation with tidal volume. Conclusion: A finger-marked bag-squeezing technique provides adequate and correct tidal volumes during mechanical ventilation.

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References

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