The efficacy of nasal airway stent (Nastent) on obstructive sleep apnoea and prediction of treatment outcomes

• Published in: Journal of oral rehabilitation 2019-01, Vol.46 (1), p.51-57
• Main Authors: Okuno, Kentaro, Ono Minagi, Hitomi, Ikai, Kazuki, Matsumura Ai, Erika, Takai, Etsuko, Fukatsu, Hikari, Uchida, Yurika, Sakai, Takayoshi
• Format: Article
• Language: English
• Subjects: Apnea; Cephalometry; Clinical outcomes; Craniofacial Abnormalities - diagnostic imaging; Craniofacial Abnormalities - physiopathology; Dentistry; Facial Bones - diagnostic imaging; Female; Humans; Hypopharynx; Implants; Male; Middle Aged; nasal airway stent; obstructive sleep apnoea; Patients; Pharynx; Pharynx - diagnostic imaging; Pharynx - physiopathology; prediction; Radiography; Respiratory tract; Silicones; Sleep; Sleep apnea; Sleep Apnea, Obstructive - diagnostic imaging; Sleep Apnea, Obstructive - etiology; Sleep deprivation; Sleep disorders; Snoring; Stents; Treatment Outcome
• ISSN: 0305-182X; 1365-2842
• DOI: 10.1111/joor.12725

Summary Background Obstructive sleep apnoea (OSA) is characterised by recurrent episodes of partial or complete upper airway collapse during sleep and is highly prevalent in the general population. The nasopharyngeal airway stent (Nastent) is a specifically designed, preformed silicone tube that intends to maintain the upper airway patency during sleep and reduce snoring and sleep apnoea. Objective(s) The purpose of this study was to determine the efficacy of Nastent treatment and examine predictors for Nastent treatment outcomes in patients with OSA. Methods Consecutive thirty patients were enrolled in this study. Cephalometric radiographs were obtained to analyse the pharyngeal and craniofacial morphology. Before and after Nastent treatment, we evaluated OSA using a portable sleep study. Results Twenty‐nine subjects completed this study. There were significant decreases in the respiratory event index (REI) (22.4 ± 14.1 to 15.7 ± 10.4, P