O'Connor-Reina, CarlosIgnacio Garcia, Jose MariaRodriguez Ruiz, ElisaMorillo Dominguez, Maria Del CarmenIgnacio Barrios, VictoriaBaptista Jardin, PeterCasado Morente, Juan CarlosGarcia Iriarte, Maria TeresaPlaza, Guillermo2023-02-092023-02-092020-11-09http://hdl.handle.net/10668/16464Myofunctional therapy has demonstrated efficacy in treating sleep-disordered breathing. We assessed the clinical use of a new mobile health (mHealth) app that uses a smartphone to teach patients with severe obstructive sleep apnea-hypopnea syndrome (OSAHS) to perform oropharyngeal exercises. We conducted a pilot randomized trial to evaluate the effects of the app in patients with severe OSAHS. Forty patients with severe OSAHS (apnea-hypoxia index [AHI]>30) were enrolled prospectively and randomized into an intervention group that used the app for 90 sessions or a control group. Anthropometric measures, Epworth Sleepiness Scale (0-24), Pittsburgh Sleep Quality Index (0-21), Iowa Oral Performance Instrument (IOPI) scores, and oxygen desaturation index were measured before and after the intervention. After the intervention, 28 patients remained. No significant changes were observed in the control group; however, the intervention group showed significant improvements in most metrics. AHI decreased by 53.4% from 44.7 (range 33.8-55.6) to 20.88 (14.02-27.7) events/hour (P Orofacial exercises performed using an mHealth app reduced OSAHS severity and symptoms, and represent a promising treatment for OSAHS. Spanish Registry of Clinical Studies AWGAPN-2019-01, ClinicalTrials.gov NCT04438785; https://clinicaltrials.gov/ct2/show/NCT04438785.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/apneaappefficacymHealthmyofunctional therapyoropharyngeal exercisesrandomized trialsleepsleep apneasmartphone apptherapyAgedFemaleHumansMaleMiddle AgedMobile ApplicationsMyofunctional TherapyPilot ProjectsSleepSleep Apnea, Obstructiveresearch article33093013open access10.2196/231232291-5222PMC7683258https://jmir.org/api/download?alt_name=mhealth_v8i11e23123_app2.pdf&filename=e82811335b2257700fba228e6176dff1.pdf