[Retracted] An Exploratory Study on the Treatment of Obstructive Apnea-Hypopnea Syndrome by Nasal Cavity Expansion

Table 1

Symbol description.

English abbreviations	English full name
OSAHS	Obstructive apnea-hypopnea syndrome
AHI	Apnea-hypopnea index
CPAP	Continuous positive airway pressure
LAUP	Laser-assisted uvuloplasty
UPPP	Uvulopalatopharyngoplasty
ESS	Epworth sleep scale
PSG	Polysomnogram
VAS	Visual analogue scale
NMCA	The nasal minimum cross-sectional area
NCV	Nasal cavity volume
NAR	Nasal airway resistance
VT	Nasal total volume
LSaO2	Lowest arterial oxygen saturation