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

European Journal of Medical Research

Shixing Xu¹  Rongyang Wang²  Ruimei Yang² 

[1] Department of Craniomaxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China;Department of Stomatology, Qilu Children’s Hospital of Shandong University, No 23976, Jingshi Rd, 250022, Jinan, Shandong, China;

关键词: Hemifacial microsomia;    Distraction osteogenesis;    Obstructive sleep apnea;    Computational fluid dynamics;    Upper airway;   

DOI  :  10.1186/s40001-021-00547-1

来源: Springer

【 摘 要 】

BackgroundCurrent 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 presentationAn 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.ConclusionsThe results suggest that DO might be effective for the treatment of OSA by expanding the upper airway and reducing the resistance of inspiration.

【 授权许可】

CC BY