Affiliation:
1. Department of Sleep Medical Center Beijing Tongren Hospital, Capital Medical University Beijing China
2. Obstructive Sleep Apnea‐Hypopnea Syndrome Clinical Diagnosis and Therapy and Research Centre Capital Medical University Beijing China
3. Key Laboratory of Otolaryngology, Head and Neck Surgery Ministry of Education Beijing China
4. Xinjiang Key Laboratory of Biopharmaceuticals and Medical Devices Xinjiang Medical University Xinjiang China
Abstract
AbstractObjectiveOral appliances (OA) are the recommended first‐line option for mild‐to‐moderate obstructive sleep apnea (OSA)‐hypopnea. However, there is a lack of evidence to compare the effectiveness of OA in different severities of OSA. The purpose of this study was to investigate the therapeutic effects of preferred OA (tongue retention devices [TRD] and mandibular advancement device [MAD]) in different severities of OSA.Data SourcesPubMed/MEDLINE, The Cochrane Library, and Web of Science.Review MethodsConcentrating on the efficacy of OA, 2 authors searched 3 databases up to November 10, 2022, independently and systematically, following the requirements and steps of the Preferred Reporting Items for Systematic Reviews and Meta‐analyses guidelines.ResultsUltimately, 42 studies with 2265 patients met the criteria for inclusion in OA. Overall, the apnea‐hypopnea index improved by 48% (5.6), 67% (14.92), and 62% (32.1) in mild, moderate, and severe OSA, respectively. Subgroup analysis showed a significant difference between MAD and TRD efficacy in mild OSA (58% vs 21%). However, no significant difference was seen between MAD and TRD efficacy in moderate (67% vs 66%) and severe OSA (66% vs 51%). There was no significant difference across groups in the Epworth Sleepiness Scale, oxygen desaturation index (ODI), and lowest oxygen saturation (LSAT).ConclusionOverall, both TRD and MAD are effective treatments for moderate and severe OSA. MAD is efficacious in mild OSA, while TRD requires further validation. Furthermore, mild‐moderate and severe OSA received similar improvements in sleepiness, ODI, and LSAT. This study complements the evidence for the efficacy of OA.
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