Snoring, the scientific name of “obstructive sleep apnea-hypopnea syndrome (OSAHS)” refers to the symptoms of apnea and hypoventilation caused by upper airway collapse obstruction during sleep, accompanied by snoring, sleep structure disorder, frequent blood oxygen saturation drop, daytime sleepiness, etc.
1.Apnea is the cessation of nasal and oral airflow during sleep for ≥10s.
2, hypoventilation (hypoventilation) refers to a 50% reduction in the intensity of respiratory airflow during sleep compared to the basal level. Above, and with blood oxygen saturation (SaO) 3% or with arousal.
3, sleep apnea hypopnea index (apnea-hypopnea index, AHI) refers to the average number of apnea and hypopnea (hypoventilation) per hour of sleep.
4, obstructive apnea is the absence of airflow through the mouth and nose during apnea, and the presence of chest and abdominal breathing movements.
Clinical manifestations
Patients usually have daytime drowsiness, severe snoring during sleep and recurrent apnea.
OSAHS grading
Classification AHI
Mild 5~20 Moderate 21~40 Severe >40
Note: The AHI is used as a criterion to classify OSAHS. For example: AHI=25
Treatment methods
I. Continuous positive pressure ventilation treatment
II. Basic principles of surgical treatment
1. Emphasize comprehensive treatment for OSAHS
2.Relieve the structural stenosis of the upper airway
3.According to the site of obstruction, the surgical plan should be formulated, and staged surgery is feasible for patients with multiplanar stenosis;
4. Preoperative positive pressure ventilation for 1~2 weeks or tracheotomy is recommended for severe patients;
5.The basic structure should be preserved and the function should be maintained and reconstructed during surgery;
6.No contraindication to surgery.
Third, oral orthodontics