AHI	Apnea–Hypopnea Index
APAP	Auto-adjusting Positive Airway Pressure
AT	Adenotonsillectomy
BPAP	Bilevel Positive Airway Pressure
CPAP	Continuous Positive Airway Pressure
DS	Down Syndrome
ENT	Ear, Nose, and Throat
ESP	Expansion Sphincter Pharyngoplasty
HFNC	High-Flow Nasal Cannula
HNS	Hypoglossal Nerve Stimulation
INS	Intranasal Corticosteroids
LTRA	Leukotriene Receptor Antagonists
MAA	Mandibular Advancement Appliances
MT	Myofunctional Therapy
OSAS	Obstructive Sleep Apnea Syndrome
PAP	Positive Airway Pressure
PMFT	Passive Myofunctional Therapy
PSG	Polysomnography
RCT	Randomized Controlled Trial
RFA	Radiofrequency Ablation
RME	Rapid Maxillary Expansion
ST	Spontaneous-Timed mode
TORS	Transoral Robotic Surgery
UPPP	Uvulopalatopharyngoplasty