Obstructive sleep apnea hypopnea syndrome
Conditions
Interventions
The mild OSAHS patient group:None
The moderate OSAHS patient group:None
The severe OSAHS patient group:None
Sponsors
Beijing Tsinghua Changgung Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: The patient's chief complaint includes snoring during sleep and waking up gasping during sleep. Overnight polysomnography (PSG) results indicate an apnea-hypopnea index (AHI) >5 events/hour, with the lowest oxygen saturation (SpO2) <90%. The patient is between 18 and 60 years of age.
Exclusion criteria
Exclusion criteria: Individuals with polysomnography (PSG) results indicating an AHI of 40 kg/m², tonsillar hypertrophy of grade III, or significant bilateral tonsillar asymmetry were also excluded to minimize interference with the observation of anatomical changes in the oropharyngeal cavity from mouth opening to closure. Patients with a history of surgeries aimed at improving oropharyngeal patency, such as tonsillectomy, palatopharyngoplasty, tongue base ablation, or mandibular advancement, were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The mean velocity at a specific pharyngeal plane;The mean pressure at a specific pharyngeal plane;The pressure drop (pressure difference) across a segment of the pharyngeal lumen;The airway resistance across a segment of the pharyngeal lumen;The wall shear stress in a certain segment of the pharyngeal lumen;Dynamic Pressure;Static Pressure;Stagnation Pressure;Friction-Related Energy Loss;Internal Flow-Related Energy Loss; | — |
Countries
China
Contacts
Public ContactBin Hu
Beijing Tsinghua Changgung Hospital
Outcome results
None listed