0565 Impact on Oral Myofunctional Therapy to Treat The Patients with Moderate to Severe Obstructive Sleep Apnea

Abstract

Introduction: Current literature demonstrated oral myofunctional therapy (MFT) decreased apnea hypopnea indices (AHI) by 50% in middle aged patients (44.5 11.6 years old) with moderate obstructive sleep apnea (OSA), however few studies was reported in elder patients with moderate to severe OSA. Methods: Twenty eight Japanese patients (19 males and 9 females) with moderate to severe OSA treated with continuous positive airway pressure (CPAP) or oral appliance (OA) for more than 6 months were included and MFT were performed 3 times a day for 6 months with CPAP or OA during sleep. The patients were educated MFT by dentists, described training diary, tongue pressures were calculated and checked their MFT pre, 2, 4 and 6 months after starting FMT with disposable tongue pressure measurement device (JMS, Japan). Polysomnography was studied before and after FMT without CPAP or OA. Results: Those ages were 71.0 7.5 years old and body mass indices were 23.6 2.4 Kg/M2. The previous AHI were 34.7 2.5 and AHI did not change significantly with CPAP or OA. The pre and post MFT AHI decreased from 36.2 2.5 to 31.9 2.5, p=0.025. Epworth Sleepiness Scale decreased from 7.5 4.0 to 6.0 3.5, p=0.013. Tongue pressure increased from 37.4 8.5 to 42.7 9.1kPa, p < 0.001, neck circumference decreased from 38.1 3.8 to 37.2 3.4cm, p=0.024. Body weight and waist circumference did not change significantly. Conclusion: MFT might support the treatment to elder patients with moderate to severe OSA.