Measuring Airway Sizes in Children
Author Information
Author(s): Ian B Masters, Robert S Ware, Paul V Zimmerman, Brian Lovell, Richard Wootton, Paul V Francis, Anne B Chang
Primary Institution: University of Queensland
Hypothesis
The large airways undergo proportionate growth when compared to the cricoid as a reference point and that gender and the usual childhood anthropometric factors influence airway size.
Conclusion
The large airways progressively increase in cross-sectional area size, maintain constant proportional relationships to the cricoid, and are gender independent across childhood.
Supporting Evidence
- Airway size increased with age but proportions remained constant.
- The LMS was 21% smaller than the RMS.
- No significant gender differences in airway size were found.
Takeaway
This study looked at how big children's airways are and found that they grow as kids get older, but their sizes compared to a specific part of the throat stay the same.
Methodology
A validated videobronchoscope technique was used to measure in-vivo airway cross-sectional areas of 125 children, with various statistical analyses performed to assess relationships.
Potential Biases
Potential bias in patient selection as only symptomatic children were included.
Limitations
The study used symptomatic patients as 'normals' and did not analyze for other potential confounders such as drug exposure in pregnancy.
Participant Demographics
125 children aged 10 years or younger, with 87 males and 38 females.
Statistical Information
P-Value
0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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