Detection of Positional Airway Obstruction in Neonates by Acoustic Reflection

American Jornal of Respiratory and Critical Care Medicine, 2000

Authors: P. Jarreau, B. Louis, L. Desfrere, P. W. Blanchard, D. Isabey, A.
Harf, and G. Moriette

Conclusion: “In conclusion, this study showed that the [Acoustic Reflection] method is an effective way to diagnose abutment of an ETT against the tracheal wall in infants. The method is easy to use and non-invasive, and usually requires less than 10 seconds of ventilator disconnection. No adverse effects of the brief disconnection were noted during the study. The [Acoustic Reflection] method therefore appears to be a good tool for
detecting or confirming positional airway obstruction in neonates.”

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