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European Journal of Medical Research
Published in: European Journal of Medical Research 1/2021

Open Access 01-12-2021 | Sleep Apnea | Case report

What is the impact of distraction osteogenesis on the upper airway of hemifacial microsomia patient with obstructive sleep apnea: a case report

Authors: Rongyang Wang, Shixing Xu, Ruimei Yang

Published in: European Journal of Medical Research | Issue 1/2021

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Abstract

Background

Current research about hemifacial microsomia (HFM) patients after distraction osteogenesis (DO) most emphasize the morphologic changes. This case report shows the outcome of DO on the upper airway of a HFM patient with obstructive sleep apnea (OSA) based on the use of computational fluid dynamics (CFD).

Case presentation

An 11-year-old boy was diagnosed as HFM with OSA, and underwent unilateral DO. Polysomnography and CT scans were performed before and 6 months after treatment. After DO, lowest blood oxygen saturation increased from 81% to 95% and apnea and hypopnea index decreased from 6.4 events/hour to 1.2 events/hour. The oropharynx and nasopharynx were obviously expanded. We observed apparently increased average pressure, decreased average velocity and pressure drop in all cross-sections, and largely decreased airflow resistance and maximum velocity entirely in the airway.

Conclusions

The results suggest that DO might be effective for the treatment of OSA by expanding the upper airway and reducing the resistance of inspiration.
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Metadata
Title
What is the impact of distraction osteogenesis on the upper airway of hemifacial microsomia patient with obstructive sleep apnea: a case report
Authors
Rongyang Wang
Shixing Xu
Ruimei Yang
Publication date
01-12-2021
Publisher
BioMed Central
Published in
European Journal of Medical Research / Issue 1/2021
Electronic ISSN: 2047-783X
DOI
https://doi.org/10.1186/s40001-021-00547-1

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