A comparative study on changes of oropharynx and rhinopharynx in different posture
Wen Weisheng, Hu Min, Wang Zhaowu, Shi Xiaowei, Bu Rongfa (Department of Stomatology, General Hospital of PLA, Beijing 100853)
Objective:To study the changes of obstructive levels in oropharynx and rhinopharynx in supine position. Methods:A detailed cephalometric analysis was performed using lateral X ray films in sitting position and supine position from 15 male volunteers.Results:In the supine position: the soft palate and hyoid bone was displaced posteriorly; the posterior airway space (PAS) got turned more narrow compared to sitting position. Conclusion:Lateral X ray film in supine position is highly recommended as a valuable tool in the diagnosis, treatment option and prognoses evaluation of obstructive sleep apnea syndrome (OSAS).
【CateGory Index】： R813