UPPP surgery
UPPP significantly relieve airway obstruction at palate level. The
individuals who underwent UPPP surgery must meet the following inclusion
criteria: (1)Suffered from OSA and without serious psychiatric,
cardiopulmonary, or neurological disease; (2)overnight PSG indicating
AHI ≥ 5 and BMI<40kg/m2; (3) Thickened and elongated
soft palate and without severe nasal congestion; (4) Friedman stage Ⅰ or
Ⅱ; (5) Unsuccessful CPAP treatment or reject CPAP treatment. Individuals
and (6) No history of surgical therapy for OSA or anti-reflux treatment
before or after surgery. Surgeon (LSS) performed UPPP surgery all the
time. The successful UPPP was defined as post-operative AHI is reduced
by at least 50% and <20/h.10