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KMID : 1140520170210010099
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Korean Journal of Emergency Medical Services
2017 Volume.21 No. 1 p.99 ~ p.109
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Comparison of tidal volume of two different bag squeezing techniques in endotracheal intubation settings
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Kang Min-Ju
Tak Yang-Ju
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Abstract
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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±35.92 mL versus 338.0±111.15 mL, p<.001). There was a correlation between the two techniques (Pearson χ2=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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KEYWORD
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Endotracheal intubation, Bag-squeezing technique, Tidal volume
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