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Volume relationships between cricoid and main stem bronchi in children using three-dimensional computed tomography
Tariq M Wani1, Ayman Mohammad AlAhdal2, Mohammed Hakim3
1Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA; Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia.
International Journal of Pediatric Otorhinolaryngology
|March 5, 2018
Summary
Pediatric airway measurements are crucial for safe one-lung ventilation. This study found that cricoid dimensions can predict main stem bronchi sizes in children, aiding in appropriate endobronchial tube selection.
Area of Science:
- Pediatric Anesthesiology
- Thoracic Surgery
- Medical Imaging
Background:
- Limited data exists for selecting endobronchial tube size for pediatric main stem intubation.
- Previous studies used 2D imaging; this study utilizes 3D CT.
- Focuses on volume-based relationships of cricoid ring, right main-stem bronchus (RMB), and left main-stem bronchus (LMB).
Purpose of the Study:
- To define 3D, CT-derived volume relationships between the cricoid ring, RMB, and LMB in children.
- To establish if cricoid dimensions can predict main stem bronchi dimensions.
Main Methods:
- Analysis of 3D CT scans from 35 children under 8 years old.
- Evaluation of airway volumes at the cricoid and main stem bronchi levels.
- Comparison of calculated volumes between these airway segments.
Main Results:
- No significant gender-based differences in cricoid or main stem bronchi volumes.
- Statistically significant differences found between cricoid and LMB volumes.
- Significant differences also observed between RMB and LMB volumes.
Conclusions:
- The volume ratio between the cricoid and main stem bronchi is consistent across ages.
- Cricoid dimensions serve as a reliable predictor for main stem bronchi dimensions.
- Findings can guide appropriate endobronchial tube selection for pediatric main stem intubation.
Keywords:
Computed tomography imagingCricoid ringLeft main-stem bronchusPediatric airwayRight main-stem bronchusMore Related Videos
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