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Lo Giudice A, La Rosa S, Ronsivalle V, Isola G, Cicciù M, Alessandri-Bonetti G, Leonardi R. Indications for Dental Specialists for Treating Obstructive Sleep Apnea with Mandibular Advancement Devices: A Narrative Review. Int J Dent 2024; 2024:1007237. [PMID: 38585252 PMCID: PMC10999292 DOI: 10.1155/2024/1007237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/09/2024] Open
Abstract
Obstructive sleep apnea (OSA) syndrome is characterized by repeated airway collapse during sleep. It determines cardiovascular, pulmonary, and neurocognitive consequences and is associated with several daytime and nighttime symptoms that influence the patient's quality of life. The contribution of the dental specialist in the clinical management of OSA patients entails participating in the screening process as diagnostic sentinels and providing adequate treatment using mandibular advancement devices (MADs). Since the treatment of OSA requires a multidisciplinary approach, including different medical specialists, dentists should have a comprehensive understanding of medical and dental factors that influence the strategy and effectiveness of OSA treatment with MAD. Such expertise is crucial in determining the appropriate treatment indications and helps clinicians establish a consolidated position within the multidisciplinary OSA team. In this regard, this review summarizes the evidence of the clinical indications for MAD treatment and provides the dental specialist with helpful information about medical, functional, and other relevant factors that should be considered during diagnosis, treatment plan, and follow-up stages. Information retrieved was organized and discussed, generating specific domains/queries oriented to the clinical management of OSA patients from the clinical perspective of dental specialists.
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Affiliation(s)
- Antonino Lo Giudice
- Department of General Surgery and Medical-Surgical Specialties, Section of Orthodontics, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
| | - Salvatore La Rosa
- Department of General Surgery and Medical-Surgical Specialties, Section of Orthodontics, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
| | - Vincenzo Ronsivalle
- Department of General Surgery and Medical-Surgical Specialties, Section of Oral Surgery, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
| | - Gaetano Isola
- Department of General Surgery and Medical-Surgical Specialties, Section of Periodontology, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
| | - Marco Cicciù
- Department of General Surgery and Medical-Surgical Specialties, Section of Oral Surgery, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
| | - Giulio Alessandri-Bonetti
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Section of Orthodontics, University of Bologna, Bologna, Italy
| | - Rosalia Leonardi
- Department of General Surgery and Medical-Surgical Specialties, Section of Orthodontics, Policlinico Universitario “Gaspare Rodolico—San Marco”, University of Catania, Via Santa Sofia 78, Catania 95123, Italy
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Ucak S, Dissanayake HU, Sutherland K, Bin YS, de Chazal P, Cistulli PA. Effect of mandibular advancement splint therapy on cardiac autonomic function in obstructive sleep apnoea. Sleep Breath 2024; 28:349-357. [PMID: 37770793 PMCID: PMC10955011 DOI: 10.1007/s11325-023-02924-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/11/2023] [Accepted: 09/13/2023] [Indexed: 09/30/2023]
Abstract
PURPOSE This study aimed to evaluate the effect of mandibular advancement splint (MAS) therapy on cardiac autonomic function in patients with obstructive sleep apnoea (OSA) using heart rate variability (HRV) analysis. METHODS Electrocardiograms (ECG) derived from polysomnograms (PSG) of three prospective studies were used to study HRV of patients with OSA before and after MAS treatment. HRV parameters were averaged across the entire ECG signal during N2 sleep using 2-min epochs shifted by 30 s. Paired t-tests were used to compare PSG and HRV measures before and after treatment, and the percent change in HRV measures was regressed on the percent change in apnoea-hypopnea index (AHI). RESULTS In 101 patients with OSA, 72% were Caucasian, 54% men, the mean age was 56 ± 11 years, BMI 29.8 ± 5.3 kg/m2, and treatment duration was 4.0 ± 3.2 months. After MAS therapy, there was a significant reduction in OSA severity (AHI, - 18 ± 16 events per hour, p < 0.001) and trends towards increased low-frequency to high-frequency ratio, low-frequency power, and reduced high-frequency power (LF:HF, - 0.4 ± 1.5, p = 0.01; LF, - 3 ± 16 nu, p = 0.02, HF, 3.5 ± 13.7 nu, p = 0.01). Change in NN intervals correlated with the change in AHI (β(SE) = - 2.21 (0.01), t = - 2.85, p = 0.005). No significant changes were observed in the time-domain HRV markers with MAS treatment. CONCLUSION The study findings suggest that successful MAS treatment correlates with changes in HRV, specifically the lengthening of NN intervals, a marker for improved cardiac autonomic adaptability.
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Affiliation(s)
- Seren Ucak
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.
| | - Hasthi U Dissanayake
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
- Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Kate Sutherland
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
- Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Yu Sun Bin
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
- Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Philip de Chazal
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
- School of Biomedical Engineering, Faculty of Engineering, University of Sydney, Sydney, Australia
| | - Peter A Cistulli
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
- Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
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Navarro RE, Karadede B, Karadede Ünal B, Salvador DM. Predictive factors of therapeutic response according to craniofacial skeletal biotype in patients with sleep apnea syndrome using mandibular advancement devices: a pilot study. Angle Orthod 2024; 94:216-223. [PMID: 37788163 PMCID: PMC10893917 DOI: 10.2319/092822-670.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 08/01/2023] [Indexed: 10/05/2023] Open
Abstract
OBJECTIVES To evaluate the influence of facial biotype in the therapeutic effect of mandibular advancement devices (MADs) according to polysomnographic records in patients diagnosed with sleep apnea-hypopnea syndrome (SAHS). MATERIALS AND METHODS A total of 46 patients were recruited. Patients were classified according to facial biotype (mesofacial, brachyfacial, or dolichofacial). The quantitative variables were described as the arithmetic mean and standard deviation or the median and interquartile range. Hypothesis tests used were Pearson's chi-square, paired-sample Student's t- test, the Wilcoxon test, one-way analysis of variance, Kruskal-Wallis test, and Mann-Whitney U-test. P < .05 was considered statistically significant. RESULTS A total of 46 patients were categorized into three facial biotype subgroups with no significant differences among them in age, body mass index, neck circumference, and sex. The respiratory disturbance index (RDI) results were as follows: brachyfacial patients had a reduction to 15 events/h (P < .001), the mesofacial patients had a reduction to 14 events/h (P < .001), and the dolichofacial patients did not show a significant reduction. The oxygen desaturation index (ODI) results were as follows: brachyfacial patients had a reduction in ODI episodes to 45 episodes/h (P = .001), mesofacial patients had a reduction to 18 episodes/h (P = .001). In the brachyfacial group, the number of awakenings with MAD therapy was reduced to 23 events/h (P = .003), while, in the mesofacial group, it was reduced to 37 episodes/h (P = .012). CONCLUSIONS The facial biotype influences the effectiveness of MAD therapy and is considered a good predictive factor.
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Shi X, Sutherland K, Lobbezoo F, Berkhout E, de Lange J, Cistulli PA, Darendeliler MA, Dalci O, Aarab G. Upper airway morphology in adults with positional obstructive sleep apnea. Sleep Breath 2024; 28:193-201. [PMID: 37466758 PMCID: PMC10954840 DOI: 10.1007/s11325-023-02879-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 06/19/2023] [Accepted: 06/23/2023] [Indexed: 07/20/2023]
Abstract
PURPOSE To compare the anatomical balance and shape of the upper airway in the supine position between adults with positional obstructive sleep apnea (POSA) and adults with non-positional OSA (NPOSA). METHODS Adults diagnosed with OSA (apnea-hypopnea index (AHI) > 10 events/h) were assessed for eligibility. POSA was defined as the supine AHI more than twice the AHI in non-supine positions; otherwise, patients were classified as NPOSA. Cone beam computed tomography (CBCT) imaging was performed for every participant while awake in the supine position. The anatomical balance was calculated as the ratio of the tongue size to the maxillomandibular enclosure size. The upper airway shape was calculated as the ratio of the anteroposterior dimension to the lateral dimension at the location of the minimal cross-sectional area of the upper airway (CSAmin-shape). RESULTS Of 47 participants (28 males, median age [interquartile range] 56 [46 to 63] years, median AHI 27.8 [15.0 to 33.8]), 34 participants were classified as having POSA (72%). The POSA group tended to have a higher proportion of males and a lower AHI than the NPOSA group (P = 0.07 and 0.07, respectively). After controlling for both sex and AHI, the anatomical balance and CSAmin-shape were not significantly different between both groups (P = 0.18 and 0.73, respectively). CONCLUSION Adults with POSA and adults with NPOSA have similar anatomical balance and shape of their upper airway in the supine position. TRIAL REGISTRATION This study was registered with the Australian New Zealand Clinical Trials Registry (ANZCTR Trial ACTRN12611000409976).
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Affiliation(s)
- Xiaoxin Shi
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, the Netherlands.
- Department of Oral Radiology & Digital Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Centers/Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands.
| | - Kate Sutherland
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
- Charles Perkins Centre and Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health University of Sydney, Sydney, Australia
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, the Netherlands
| | - Erwin Berkhout
- Department of Oral Radiology & Digital Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jan de Lange
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Centers/Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands
| | - Peter A Cistulli
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, Australia
- Charles Perkins Centre and Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health University of Sydney, Sydney, Australia
| | - M Ali Darendeliler
- Discipline of Orthodontics and Paediatric Dentistry, Sydney Dental School, University of Sydney, Sydney, Australia
- Department of Orthodontics, Sydney Dental Hospital, Sydney Local Health District, Sydney, Australia
| | - Oyku Dalci
- Discipline of Orthodontics and Paediatric Dentistry, Sydney Dental School, University of Sydney, Sydney, Australia
- Department of Orthodontics, Sydney Dental Hospital, Sydney Local Health District, Sydney, Australia
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, the Netherlands
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Veugen CC, Kant E, Kelder JC, Schipper A, Stokroos RJ, Copper MP. The predictive value of mandibular advancement maneuvers during drug-induced sleep endoscopy for treatment success of oral appliance treatment in obstructive sleep apnea: a prospective study. J Clin Sleep Med 2024; 20:353-361. [PMID: 38426847 PMCID: PMC11019213 DOI: 10.5664/jcsm.10866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 03/02/2024]
Abstract
STUDY OBJECTIVES To prospectively validate drug-induced sleep endoscopy with mandibular advancement maneuvers as a prediction tool for treatment success of oral appliance treatment (OAT). METHODS Seventy-seven patients diagnosed with moderate obstructive sleep apnea were included and underwent drug-induced sleep endoscopy. The upper airway collapse was assessed using the VOTE classification. Additionally, three mandibular advancement maneuvers were performed to predict treatment success of OAT. If the maneuver was negative, the level and degree and configuration of the persistent collapse was described according to the VOTE classification. All patients were treated with OAT and completed a follow-up sleep study with OAT in situ without regard to their anticipated response to treatment. RESULTS Sixty-four patients completed 6-month follow up. A positive jaw thrust maneuver proved to be significantly associated with favorable OAT response, whereas the chin lift maneuver and the vertical chin lift maneuver were not. Additionally, a persistent lateral oropharyngeal collapse when performing any mandibular advancement maneuver was significantly associated with unfavorable OAT response. CONCLUSIONS The current findings suggest that a jaw thrust maneuver should be preferred over the chin lift maneuver for predicting OAT response. Patients with a positive jaw thrust maneuver should be counseled toward favorable OAT response, whereas those with persistent lateral oropharyngeal collapse should be advised about the likelihood of unfavorable OAT response. A negative jaw thrust maneuver did not prove to be a significant predictor for unfavorable response to OAT. Consequently, uncertainties arise regarding the justification of performing drug-induced sleep endoscopy solely for predicting the efficacy of OAT. However, the results of the current study could be influenced by heterogeneity in the assessment of respiratory parameters, variability in the performance of the mandibular advancement maneuvers, and the instability of bolus technique sedation. CLINICAL TRIAL REGISTRATION Registry: Netherlands Trial Register; Name: Drug-induced Sleep Endoscopy: a prediction tool for success rate of oral appliance treatment; Identifier: NL8425; URL: https://www.onderzoekmetmensen.nl/en/trial/20741. CITATION Veugen CCAFM, Kant E, Kelder JC, Schipper A, Stokroos RJ, Copper MP. The predictive value of mandibular advancement maneuvers during drug-induced sleep endoscopy for treatment success of oral appliance treatment in obstructive sleep apnea: a prospective study. J Clin Sleep Med. 2024;20(3): 353-361.
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Affiliation(s)
- Christianne C.A.F.M. Veugen
- Department of Otorhinolaryngology, Head and Neck Surgery, Sint Antonius Hospital, Nieuwegein, the Netherlands
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Groningen, Groningen, the Netherlands
| | - Ellen Kant
- Department of Otorhinolaryngology, Head and Neck Surgery, Sint Antonius Hospital, Nieuwegein, the Netherlands
| | - Johannes C. Kelder
- Department of Epidemiology and Statistics, Sint Antonius Hospital, Nieuwegein, the Netherlands
| | - Anna Schipper
- Department of Oral- and Maxillofacial Surgery, Sint Antonius Hospital, Nieuwegein, the Netherlands
| | - Robert J. Stokroos
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Marcel P. Copper
- Department of Otorhinolaryngology, Head and Neck Surgery, Sint Antonius Hospital, Nieuwegein, the Netherlands
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Shi X, Lobbezoo F, Chen H, Rosenmöller BRAM, Berkhout E, de Lange J, Aarab G. Effects of mandibular advancement devices on upper airway dimensions in obstructive sleep apnea: responders versus non-responders. Clin Oral Investig 2023; 27:5649-5660. [PMID: 37589748 PMCID: PMC10492877 DOI: 10.1007/s00784-023-05186-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/28/2023] [Indexed: 08/18/2023]
Abstract
STUDY OBJECTIVES To compare the effects of mandibular advancement device (MAD) therapy on upper airway dimensions between responders and non-responders with mild to moderate obstructive sleep apnea (OSA). METHODS Thirty-one participants (21 men and 10 women) with a mean ± SD apnea-hypopnea index (AHI) of 16.6 ± 6.7 events/h, and aged 48.5 ± 13.9 years, were included in this study. Polysomnographic recordings and cone beam computed tomography (CBCT) scans in supine position were performed for every participant at baseline and at 3-month follow-up with their MAD in situ. Responders were defined as having ≥ 50% reduction in baseline AHI with a residual AHI < 10 events/h. The primary outcome variable was the minimal cross-sectional area of the upper airway (CSAmin). RESULTS No significant differences were found between responders (n = 15) and non-responders (n = 16) in age, gender distribution, body mass index, and neck circumference (P = 0.06-0.93), nor in AHI and CSAmin (P = 0.40 and 0.65, respectively) at baseline. The changes of the CSAmin with MAD in situ in the responder group were not significantly different compared to those in the non-responder group (P = 0.06). CONCLUSION Within the limitations of this study, we conclude that the changes of the upper airway dimensions induced by MADs are not significantly different between responders and non-responders with mild to moderate OSA. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02724865. https://clinicaltrials.gov/ct2/show/NCT02724865.
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Affiliation(s)
- Xiaoxin Shi
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Oral Radiology & Digital Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Centers/Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Hui Chen
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, Jinan, 250012, Shandong, China.
| | - Boudewijn R A M Rosenmöller
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Centers/Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands
| | - Erwin Berkhout
- Department of Oral Radiology & Digital Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jan de Lange
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Centers/Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands
| | - Ghizlane Aarab
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Sangalli L, Yanez-Regonesi F, Fernandez-Vial D, Moreno-Hay I. Self-reported improvement in obstructive sleep apnea symptoms compared to treatment response with mandibular advancement device therapy: a retrospective study. Sleep Breath 2023; 27:1577-1588. [PMID: 36449217 DOI: 10.1007/s11325-022-02754-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 12/02/2022]
Abstract
PURPOSE Mandibular advancement device (MAD) is recognized as the treatment option for management of obstructive sleep apnea (OSA) in mild-moderate cases or those unable to tolerate positive airway pressure therapy. Post-treatment sleep study is recommended to establish MAD efficacy when maximal therapeutic benefit is achieved based on OSA symptom improvement or maximum anatomical protrusion. The aim of this study was to investigate the difference between responders and non-responders in OSA symptom improvement and predictors of treatment success. METHODS Medical charts of patients referred to the Orofacial Pain Clinic between 2016 and 2021 for management of OSA with MAD were retrospectively evaluated. Participants with post-treatment sleep study with MAD in situ were included. Participants were categorized as responders according to different criteria: 50% reduction in apnea-hypopnea index (AHI) compared to baseline; post-treatment AHI ≤ 10 with ≥ 50% reduction from baseline; AHI ≤ 5 with ≥ 50% reduction. OSA symptoms included snoring, apneas, sleep quality, tiredness upon awakening, daytime sleepiness, and subjective improvement. Differences in pre- and post-treatment variables within/between groups and predictors were analyzed with t test and logistic regression. RESULTS Among 53 participants (30 females), mean age was 64.2 ± 10.7 and pre-treatment was AHI 23.3 ± 17.2. Depending upon the criteria, responders ranged between 26 and 57%. At first follow-up after MAD delivery, non-responders reported less tiredness upon awakening (p = 0.003), better sleep quality (p = 0.005), and greater subjective improvement (p = 0.012) than responders. Among significant OSA symptoms, tiredness upon awakening, poorer sleep quality, and less subjective improvement were consistently found as predictors of treatment response. CONCLUSION Subjective improvement, sleep quality, and tiredness upon awakening significantly improved in non-responders at first follow-up compared to responders, according to the strictest definition of treatment response. Therefore, a post-treatment sleep study is crucial to confirm proper management of OSA with MAD.
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Affiliation(s)
- Linda Sangalli
- Department of Oral Health Science, College of Dentistry, Orofacial Pain Clinic, University of Kentucky, Lexington, KY, USA.
- College of Dental Medicine-Illinois (CDMI), Midwestern University, Downers Grove, IL, USA.
| | - Fernanda Yanez-Regonesi
- Department of Oral Health Science, College of Dentistry, Orofacial Pain Clinic, University of Kentucky, Lexington, KY, USA
| | - Diego Fernandez-Vial
- Department of Oral Health Science, College of Dentistry, Orofacial Pain Clinic, University of Kentucky, Lexington, KY, USA
| | - Isabel Moreno-Hay
- Department of Oral Health Science, College of Dentistry, Orofacial Pain Clinic, University of Kentucky, Lexington, KY, USA
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Van den Bossche K, Op de Beeck S, Dieltjens M, Verbruggen AE, Vroegop AV, Verbraecken JA, Van de Heyning PH, Braem MJ, Vanderveken OM. Multimodal phenotypic labelling using drug-induced sleep endoscopy, awake nasendoscopy and computational fluid dynamics for the prediction of mandibular advancement device treatment outcome: a prospective study. J Sleep Res 2022; 31:e13673. [PMID: 35734809 PMCID: PMC10078177 DOI: 10.1111/jsr.13673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/11/2022] [Accepted: 05/30/2022] [Indexed: 11/30/2022]
Abstract
Mandibular advancement device (MAD) treatment outcome for obstructive sleep apnea (OSA) is variable and patient dependent. A global, clinically applicable predictive model is lacking. Our aim was to combine characteristics obtained during drug-induced sleep endoscopy (DISE), awake nasendoscopy, and computed tomography scan-based computational fluid dynamic (CFD) measurements in one multifactorial model, to explain MAD treatment outcome. A total of 100 patients with OSA were prospectively recruited and treated with a MAD at fixed 75% protrusion. In all, 72 underwent CFD analysis, DISE, and awake nasendoscopy at baseline in a blinded fashion and completed a 3-month follow-up polysomnography with a MAD. Treatment response was defined as a reduction in the apnea-hypopnea index (AHI) of ≥50% and deterioration as an increase of ≥10% during MAD treatment. To cope with missing data, multiple imputation with predictive mean matching was used. Multivariate logistic regression, adjusting for body mass index and baseline AHI, was used to combine all potential predictor variables. The strongest impact concerning odds ratios (ORs) was present for complete concentric palatal collapse (CCCp) during DISE on deterioration (OR 28.88, 95% confidence interval [CI] 1.18-704.35; p = 0.0391), followed by a C-shape versus an oval shape of the soft palate during wakefulness (OR 8.54, 95% CI 1.09-67.23; p = 0.0416) and tongue base collapse during DISE on response (OR 3.29, 95% CI 1.02-10.64; p = 0.0464). Both logistic regression models exhibited excellent and fair predictive accuracy. Our findings suggest DISE to be the most robust examination associated with MAD treatment outcome, with tongue base collapse as a predictor for successful MAD treatment and CCCp as an adverse DISE phenotype.
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Affiliation(s)
- Karlien Van den Bossche
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Sara Op de Beeck
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
| | - Marijke Dieltjens
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | | | - Anneclaire V Vroegop
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
| | - Johan A Verbraecken
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium.,Department of Pulmonary Medicine, Antwerp University Hospital, Edegem, Belgium
| | | | - Marc J Braem
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Olivier M Vanderveken
- Faculty of Medicine and health Sciences, University of Antwerp, Wilrijk, Belgium.,ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
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Camañes-Gonzalvo S, Bellot-Arcís C, Marco-Pitarch R, Montiel-Company JM, García-Selva M, Agustín-Panadero R, Paredes-Gallardo V, Puertas-Cuesta FJ. Comparison of the phenotypic characteristics between responders and non-responders to obstructive sleep apnea treatment using mandibular advancement devices in adult patients: systematic review and meta-analysis. Sleep Med Rev 2022; 64:101644. [DOI: 10.1016/j.smrv.2022.101644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 12/28/2022]
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10
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Lee CF, Chen YJ, Huang WC, Hou JW, Liu YT, Shih TTF, Lee PL, Yu CJ. Prediction of Mandibular Advancement Device Response Using CPAP Pressure in Different Polysomnographic Phenotypes. Nat Sci Sleep 2022; 14:517-529. [PMID: 35369531 PMCID: PMC8965013 DOI: 10.2147/nss.s351027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/13/2022] [Indexed: 11/23/2022] Open
Abstract
Objective Both continuous positive airway pressure (CPAP) pressure and polysomnographic phenotypes have been associated with mandibular advancement device (MAD) treatment response, but the precise relationship has not been fully elucidated. We hypothesized that utilizing CPAP pressure would predict the MAD response in treatment-naïve patients with moderate-severe obstructive sleep apnea (OSA), and the MAD response would be associated with two polysomnographic phenotypes, including sleep stage dependency and positional dependency. Methods OSA treatment-naïve patients with an apnea-hypopnea index (AHI) ≥15/h who declined CPAP treatment and received MAD treatment for 3-6 months were enrolled. The MAD treatment response was defined as 1) residual AHI under MAD (AHIMAD) <5/h and 2) AHIMAD <10/h. Logistic regression was applied to identify the association between CPAP pressure and MAD treatment responders. The predictability of the MAD responder status utilizing CPAP pressure was assessed with the area under the receiver operating characteristic (AUROC). Results A total of 128 enrolled patients (AHI ≥30/h in 74.2%) were recruited, of whom 119 patients and 80 patients were included for analysis of sleep stage and positional dependency, respectively. REM-predominant OSA had lower AHI than stage-independent OSA, while the supine-predominant phenotype had lower anthropometrics than the nonpositional-dependent phenotype. The response rates for AHIMAD <5/h and AHIMAD <10/h were 25.8% and 48.4%, respectively. Lower anthropometrics, baseline AHI, and supine predominance were associated with the responder status, while CPAP pressure was an independent predictor. The AUROCs for the prediction of AHIMAD <5/h and AHIMAD <10/h responders were 0.635 and 0.664, respectively. Utilizing a CPAP level >14 cmH2O as the cutoff to predict criterion 1 and 2 nonresponders, the sensitivity was 93.9% and 95.2%, respectively. Conclusion In treatment-naïve patients with moderate-severe OSA, the supine-predominant phenotype and lower CPAP pressure were associated with the MAD response, while the sleep stage dependency phenotype was not. Utilization of a CPAP level >14 cmH2O could be a sensitive measure to identify nonresponders.
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Affiliation(s)
- Chien-Feng Lee
- Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - Yunn-Jy Chen
- Department of Dentistry, School of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Chi Huang
- Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan
| | - Jen-Wen Hou
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan
| | | | - Tiffany Ting-Fang Shih
- Department of Radiology and Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Pei-Lin Lee
- Center of Sleep Disorder, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Center for Electronics Technology Integration, National Taiwan University, Taipei, Taiwan
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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11
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Fernández-Sanjuán P, Arrieta JJ, Sanabria J, Alcaraz M, Bosco G, Pérez-Martín N, Pérez A, Carrasco-Llatas M, Moreno-Hay I, Ríos-Lago M, Lugo R, O’Connor-Reina C, Baptista P, Plaza G. Optimizing Mandibular Advancement Maneuvers during Sleep Endoscopy with a Titratable Positioner: DISE-SAM Protocol. J Clin Med 2022; 11:jcm11030658. [PMID: 35160107 PMCID: PMC8836970 DOI: 10.3390/jcm11030658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 12/21/2022] Open
Abstract
Mandibular advancement devices (MAD) are an effective alternative treatment to CPAP. Different maneuvers were performed during drug sleep-induced endoscopy (DISE) to mimic the effect of MAD. Using the Selector Avance Mandibular (SAM) device, we aimed to identify MAD candidates during DISE using a titratable, reproducible, and measurable maneuver. This DISE-SAM protocol may help to find the relationship between the severity of the respiratory disorder and the degree of response and determine the advancement required to improve the collapsibility of the upper airway. Explorations were performed in 161 patients (132 males; 29 females) with a mean age of 46.81 (SD = 11.42) years, BMI of 27.90 (SD = 4.19) kg/m2, and a mean AHI of 26.51 (SD = 21.23). The results showed no relationship between severity and MAD recommendation. Furthermore, there was a weak positive relationship between the advancement required to obtain a response and the disease severity. Using the DISE-SAM protocol, the response and the range of mandibular protrusion were assessed, avoiding the interexaminer bias of the jaw thrust maneuver. We suggest prescribing MAD as a single, alternative, or multiple treatment approaches following the SAM recommendations in a personalized design.
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Affiliation(s)
- Patricia Fernández-Sanjuán
- Department of Maxillofacial Surgery and Dentistry, Hospital Universitario San Francisco de Asís, Universidad Rey Juan Carlos, 28002 Madrid, Spain;
- Dental Sleep Medicine, Hospital Universitario Sanitas La Zarzuela, 28942 Madrid, Spain
| | - Juan José Arrieta
- Department of Stomatology, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain;
| | - Jaime Sanabria
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain;
| | - Marta Alcaraz
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Sanitas La Zarzuela, 28942 Madrid, Spain; (M.A.); (G.B.); (N.P.-M.)
| | - Gabriela Bosco
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Sanitas La Zarzuela, 28942 Madrid, Spain; (M.A.); (G.B.); (N.P.-M.)
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario de Fuenlabrada, Universidad Rey Juan Carlos, 28942 Madrid, Spain
| | - Nuria Pérez-Martín
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Sanitas La Zarzuela, 28942 Madrid, Spain; (M.A.); (G.B.); (N.P.-M.)
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario de Fuenlabrada, Universidad Rey Juan Carlos, 28942 Madrid, Spain
| | - Adriana Pérez
- Department of Otolaryngology Head and Neck Surgery, Hospital La Milagrosa, 28010 Madrid, Spain;
| | - Marina Carrasco-Llatas
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Dr. Peset., 46017 Valencia, Spain;
| | - Isabel Moreno-Hay
- Division of Orofacial Pain, Department of Oral Health Science, College of Dentistry, University of Kentucky, Lexington, KY 40536, USA;
| | - Marcos Ríos-Lago
- Department of Basic Psychology II, Faculty of Psychology, UNED, 28040 Madrid, Spain;
| | - Rodolfo Lugo
- Department of Otolaryngology Head and Neck Surgery, Hospital San José, Monterrey 64718, Mexico;
| | - Carlos O’Connor-Reina
- Department of Otolaryngology Head and Neck Surgery, Hospital Quironsalud Marbella, 29603 Marbella, Spain;
- Department of Otolaryngology Head and Neck Surgery, Hospital Quironsalud Campo de Gibraltar, 11379 Palmones, Spain
| | - Peter Baptista
- Department of Otolaryngology Head and Neck Surgery, Clínica Universitaria de Navarra, 31008 Pamplona, Spain;
| | - Guillermo Plaza
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario Sanitas La Zarzuela, 28942 Madrid, Spain; (M.A.); (G.B.); (N.P.-M.)
- Department of Otolaryngology Head and Neck Surgery, Hospital Universitario de Fuenlabrada, Universidad Rey Juan Carlos, 28942 Madrid, Spain
- Correspondence:
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12
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Sutherland K, Dissanayake HU, Trzepizur W, Gagnadoux F, Cistulli PA. Circadian blood pressure profile and blood pressure changes following oral appliance therapy for obstructive sleep apnoea. J Hypertens 2021; 39:2272-2280. [PMID: 34149014 DOI: 10.1097/hjh.0000000000002914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Oral appliance therapy for obstructive sleep apnoea (OSA) reduces blood pressure (BP) but there is little information on relationship to circadian BP pattern (nocturnal BP dipping or non-dipping). The aims of this study were to determine whether nocturnal dipping pattern influences BP changes following oral appliance therapy, and to determine the effect of oral appliance therapy on circadian BP pattern. METHODS Participants in two randomized trials of oral appliance therapy (1-2 months) with 24-h ambulatory BP monitoring (ABPM) data were included (N = 152). Nocturnal BP Dippers (nocturnal/diurnal SBP ratio <0.9) and non-dippers were compared for BP changes following oral appliance therapy and the effect of oral appliance therapy on nocturnal BP dipping was assessed. RESULTS Of 152 participants, 64.5% were dippers. Dippers were on average younger and less likely to be hypertensive (42 vs. 82.7%, P < 0.001). Nondippers showed greater reduction in nocturnal BP measures, related to higher BP measures at baseline. There was no difference in the relationship between treatment effectiveness and BP changes between groups. Oral appliance therapy converted only 23% of baseline non-dippers to a nocturnal dipping profile. CONCLUSION Baseline circadian BP profile influenced the BP response to oral appliance therapy, largely because of higher baseline BP in the non-dipper subgroup. Oral appliance therapy did not convert OSA patients to a more favourable circadian BP profile. Further work is required to understand the effect of oral appliance therapy on circadian BP profile and of the individuals who will receive cardiovascular benefit from oral appliance therapy.
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Affiliation(s)
- Kate Sutherland
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Hasthi U Dissanayake
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Wojciech Trzepizur
- University of Angers, INSERM UMR 1063 'SOPAM'
- Department of Respiratory and Sleep Medicine, University Hospital of Angers, Angers, France
| | - Frederic Gagnadoux
- University of Angers, INSERM UMR 1063 'SOPAM'
- Department of Respiratory and Sleep Medicine, University Hospital of Angers, Angers, France
| | - Peter A Cistulli
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
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13
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Bosschieter PFN, Vonk PE, de Vries N. The predictive value of drug-induced sleep endoscopy for treatment success with a mandibular advancement device or positional therapy for patients with obstructive sleep apnea. Sleep Breath 2021; 26:1153-1160. [PMID: 34596877 DOI: 10.1007/s11325-021-02501-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/20/2021] [Accepted: 09/24/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE As drug-induced sleep endoscopy (DISE) can provide additional diagnostic information on collapse patterns of the upper-airway, it is widely used in patients with obstructive sleep apnea (OSA). Although more controversial, DISE may also predict the success of treatment with a mandibular advancement device (MAD) and/or positional therapy (PT). In 2018, we proposed a prediction model to investigate the predictive value of passive maneuvers during DISE - such as jaw thrust and changes in body position - on upper-airway patency. Based on the outcomes of various studies, we then adjusted our DISE protocol to better mimic the effect of a MAD, PT, or a combination of both. The aim of this study was to verify whether or not our adjustments would increase the value of DISE as a selection tool. METHODS This single-center retrospective cohort study involved a consecutive series of patients with OSA. Patients were included if a DISE had been performed in supine and non-supine sleeping position and with and without a boil-and-bite MAD in situ between December 2018 and February 2020. The VOTE scoring system was used to evaluate the obstruction at four levels of the upper-airway. RESULTS Among 94 patients included. the median apnea-hypopnea index (AHI) was 16.2 (events/h). As a temporary MAD during DISE reduced obstruction by 54% and jaw thrust by 57%, both mimicked the effect of the custom-made MADs referred to in the literature, which reduces the AHI by 60%. Head-and-trunk rotation reduced obstruction by 55% and thus mimicked the effect of PT, which is known to reduce the AHI by 50%. CONCLUSION A jaw thrust, a temporary MAD, and head-and-trunk rotation during DISE all seem to mimic the treatment effects of MAD and PT. These findings may be of added value when choosing OSA treatment. To prove the predictive value of these maneuvers during DISE, a prospective study should be performed.
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Affiliation(s)
- P F N Bosschieter
- Department of Otorhinolaryngology, Head and Neck Surgery, OLVG, Jan Tooropstraat 164, 1061AE, Amsterdam, Netherlands.
| | - P E Vonk
- Department of Otorhinolaryngology, Head and Neck Surgery, Amsterdam UMC, Amsterdam, The Netherlands
| | - N de Vries
- Department of Otorhinolaryngology, Head and Neck Surgery, OLVG, Jan Tooropstraat 164, 1061AE, Amsterdam, Netherlands.,Department of Oral Kinesiology, ACTA, MOVE Research Institute Amsterdam, University of Amsterdam and VU University Amsterdam, Amsterdam, Netherlands.,Department of Otorhinolaryngology, Head and Neck Surgery, University of Antwerp, Antwerp, Belgium
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14
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Van de Perck E, Op de Beeck S, Dieltjens M, Vroegop AV, Verbruggen AE, Willemen M, Verbraecken J, Van de Heyning PH, Braem MJ, Vanderveken OM. The relationship between specific nasopharyngoscopic features and treatment deterioration with mandibular advancement devices: a prospective study. J Clin Sleep Med 2021; 16:1189-1198. [PMID: 32267227 DOI: 10.5664/jcsm.8474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
STUDY OBJECTIVES The variable efficacy of mandibular advancement device (MAD) treatment necessitates both accessible and accurate methods for patient selection. However, the role of awake nasopharyngoscopy for this purpose remains dubious. We introduced an assessment method based on anatomical upper airway features during tidal breathing for nasopharyngoscopy. The current study aimed to relate these features to MAD treatment outcome. METHODS One hundred patients diagnosed with obstructive sleep apnea were prospectively recruited for MAD treatment in a fixed 75% degree of maximal protrusion. Nasopharyngoscopic observations during Müller's maneuver and tidal breathing were recorded both with and without MAD. Treatment outcome, confirmed by 3-month follow-up polysomnography with MAD, was classified as (1) apnea-hypopnea index reduction ≥ 50%, (2) treatment apnea-hypopnea index < 5 events/h, and (3) ≥ 10% increase in apnea-hypopnea index compared with baseline (treatment deterioration). RESULTS A complete dataset was obtained in 65 patients. After adjusting for baseline apnea-hypopnea index, body mass index, and supine dependency, the position of the soft palate (odds ratio, 4.0; 95% confidence interval, 1.3-11.8; P = .013) and crowding of the oropharynx (odds ratio, 7.7; 95% confidence interval, 1.4-41.4; P = .017) were related to treatment deterioration. Addition of both features significantly (P = .031) improved the accuracy of baseline models based on clinical measurements alone. Moreover, with the MAD in situ, a posteriorly located soft palate (odds ratio, 9.8; 95% confidence interval, 1.7-56.3; P = .010) and a posteriorly located tongue base (odds ratio, 7.4; 95% confidence interval, 1.5-35.9; P = .013) were associated with treatment deterioration. CONCLUSIONS Awake nasopharyngoscopy might be a valuable office-based examination to exclude the risk of treatment deterioration and improve patient selection for MAD treatment. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Name: Predicting Therapeutic Outcome of Mandibular Advancement Device Treatment in Obstructive Sleep Apnea (PROMAD); URL: https://clinicaltrials.gov/ct2/show/NCT01532050; Identifier: NCT01532050.
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Affiliation(s)
- Eli Van de Perck
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Sara Op de Beeck
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
| | - Marijke Dieltjens
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Special Dentistry Care, Antwerp University Hospital, Edegem, Belgium
| | - Anneclaire V Vroegop
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
| | - Annelies E Verbruggen
- Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Marc Willemen
- Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
| | - Johan Verbraecken
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium.,Department of Pulmonology, Antwerp University Hospital, Edegem, Belgium
| | - Paul H Van de Heyning
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Marc J Braem
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Special Dentistry Care, Antwerp University Hospital, Edegem, Belgium
| | - Olivier M Vanderveken
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium.,Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
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15
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Haskell BS, Voor MJ, Roberts AM. A consideration of factors affecting palliative oral appliance effectiveness for obstructive sleep apnea: a scoping review. J Clin Sleep Med 2021; 17:833-848. [PMID: 33196434 PMCID: PMC8020709 DOI: 10.5664/jcsm.9018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES This scoping review allows physicians, researchers, and others interested in obstructive sleep apnea to consider effectiveness of oral appliances (OAs). The intent is to improve understanding of OA effectiveness by considering morphologic interaction in patients with obstructive sleep apnea. METHODS Morphologic and biomechanical criteria for positional alterations of the mandible assessed success rates of OA appliances. Searches of databases (Medline, PubMed, The Cochrane Library, EBSCO) using terms: OA treatment effectiveness and positive and/or negative outcome predictors. Craniofacial predictors of OAs and obstructive sleep apnea biomechanical factors of anatomical traits associated with OA effectiveness were included. Databases searched radiographic cephalometric imaging for morphology/phenotypes and apnea-hypopnea index responses. Articles were excluded if title or abstract was not relevant or a case report. If the analysis did not report mean or standard deviation for apnea-hypoxia index, it was excluded. No language, age, or sex restrictions were applied. RESULTS Analysis of 135 articles included in searched literature indicated alterations in musculature and pharyngeal airway structure through OA use. These alterations were individually unpredictable with wide variability 61.81% ± 12.29 (apnea-hypoxia index mean ± standard deviation). Morphologic variations as predictors were typically weak and idiosyncratic. Biomechanical factors and wide variations in the metrics of appliance application were unclear, identifying gaps in knowledge and practice of OAs. CONCLUSIONS An integrated basis to identify morphologic and biomechanical elements of phenotypic expressions of sleep-disordered breathing in the design and application of OAs is needed. Current knowledge is heterogeneous and shows high variability. Identification of subgroups of patients with obstructive sleep apnea responding to OAs is needed.
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Affiliation(s)
- Bruce S. Haskell
- Division of Orthodontics, University of Kentucky College of Dentistry, Lexington Kentucky
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
- Comprehensive Dentistry, School of Dentistry, University of Louisville, Louisville, Kentucky
| | - Michael J. Voor
- Department of Orthopedics, School of Medicine, University of Louisville, Louisville, Kentucky
- Department of Biomedical Engineering, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Andrew M. Roberts
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
- Department of Pediatrics, School of Medicine, University of Louisville, Louisville, Kentucky
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16
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Opsahl UL, Berge M, Lehmann S, Bjorvatn B, Opsahl P, Johansson A. Acoustic pharyngometry - A new method to facilitate oral appliance therapy. J Oral Rehabil 2020; 48:601-613. [PMID: 33314265 PMCID: PMC8246767 DOI: 10.1111/joor.13134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022]
Abstract
Background There is lack of reliable and accurate methods to predict treatment outcomes of oral appliance (OA) treatment. Acoustic pharyngometry (AP) is a non‐invasive technique to evaluate the volume and minimal cross‐sectional area of the upper airway, which may prove useful to locate the optimal position of OAs. Objective This retrospective study aimed to evaluate the effect of applying AP to OA treatment of patients with obstructive sleep apnoea (OSA). Methods All patients (n = 244) treated with OAs following an AP protocol at two dental clinics between 2013 and 2018 were invited to participate. A total of 129 patients accepted the invitation, and 120 patients (75 men, 45 women) were included in the analyses. Mean baseline age, BMI and apnoea hypopnea index (AHI) were 59.1 ± 0.9 years, 27.8 ± 0.4 and 21.9 ± 1.1, respectively. Mean follow‐up time was 318 ± 24 days. Results AHI at follow‐up was 6.4 ± 0.7, resulting in a treatment success rate of 86.7% (≥50% reduction of baseline AHI). The number of failures (<50% reduction of baseline AHI) did not differ significantly among patients with mild, moderate and severe OSA. 87.6% of the patients reported OA usage every night, and 95.5% reported > 5 hours usage per night, when worn. Conclusion The AP protocol applied seems to contribute to the excellent effect of OA treatment in this study. Further research on the application of AP in OA treatment is necessary in order to clarify its possible beneficial contribution to improving OA therapy.
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Affiliation(s)
- Ulrik Leidland Opsahl
- Department of Clinical Dentistry - Prosthodontics, Faculty of Medicine, University of Bergen, Bergen, Norway.,Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway.,Tannhelsesenteret Lørenskog og Sogndal, Lørenskog, Norway
| | - Morten Berge
- Department of Clinical Dentistry - Prosthodontics, Faculty of Medicine, University of Bergen, Bergen, Norway.,Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
| | - Sverre Lehmann
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway.,Section for Thoracic Medicine, Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Bjørn Bjorvatn
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
| | - Per Opsahl
- Tannhelsesenteret Lørenskog og Sogndal, Lørenskog, Norway
| | - Anders Johansson
- Department of Clinical Dentistry - Prosthodontics, Faculty of Medicine, University of Bergen, Bergen, Norway.,Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
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17
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Koutsourelakis I, Kontovazainitis G, Lamprou K, Gogou E, Samartzi E, Tzakis M. The role of sleep endoscopy in oral appliance therapy for obstructive sleep apnea. Auris Nasus Larynx 2020; 48:255-260. [PMID: 32859441 DOI: 10.1016/j.anl.2020.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 08/09/2020] [Accepted: 08/13/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Although oral appliance therapy is considered a validated treatment for obstructive sleep apnea, its therapeutic success varies significantly among patients. Drug-induced sleep endoscopy is often employed in order to identify candidates for upper airway surgery; however, it remains unknown whether its findings can be associated with success of oral appliance therapy. This study tested the hypothesis that drug-induced sleep endoscopy variables can predict the outcome of oral appliance therapy in obstructive sleep apnea patients. METHODS Forty-nine obstructive sleep apnea patients [45 men; mean apnea-hypopnea index 25.3 ± 7.5 events/h; mean body mass index 28.2 ± 3.0 kg/m2] underwent drug-induced sleep endoscopy, followed by a one-month of oral appliance therapy, and subsequently a follow-up polysomnography to assess outcome. RESULTS Thirty-three patients (67.3%) were responders and sixteen were non-responders (32.6%). Non-responders had a higher occurrence of complete or partial circumferential collapse at velum in comparison with responders. Multivariate logistic regression analysis revealed that, among baseline clinical and polysomnographic characteristics and sleep endoscopy findings, the presence of complete circumferential collapse at velum and increased body mass index were the only independent predictors of oral appliance therapy failure. CONCLUSION Drug-induced sleep endoscopy can be used to predict a higher likelihood of success to oral appliance therapy in obstructive sleep apnea patients.
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Affiliation(s)
| | | | - Kallirroi Lamprou
- Orofacial Pain Clinic of the Dental School of University of Athens, Greece
| | - Evgenia Gogou
- Orofacial Pain Clinic of the Dental School of University of Athens, Greece
| | - Eliana Samartzi
- Orofacial Pain Clinic of the Dental School of University of Athens, Greece
| | - Michalis Tzakis
- Orofacial Pain Clinic of the Dental School of University of Athens, Greece
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18
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Okuno K, Furuhashi A, Nakamura S, Suzuki H, Arisaka T, Taga H, Tamura M, Katahira H, Furuhata M, Iida C. The success rate of oral appliances based on multiple criteria according to obstructive sleep apnoea severity, BMI and age: A large multicentre study. J Oral Rehabil 2020; 47:1178-1183. [PMID: 32632924 DOI: 10.1111/joor.13046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND The efficacy of oral appliance (OA) varies greatly in patients with obstructive sleep apnoea (OSA). OBJECTIVE(S) The purpose of this cross-sectional study was to investigate the success rate of OA for OSA patients. METHODS This study was based on a cross-sectional multicentre survey of OA therapy for the management of OSA called the JAMS (Japanese Cross-sectional Multicenter Survey) Study performed at 10 medical institutions. A total of 442 patients fulfilled the selection criteria, which patients had worn OA, and undergone overnight polysomnography to assess both the pre-treatment baseline and follow-up for OA. Age, sex, BMI and apnoea-hypopnea index (AHI) at the time of diagnosis and follow-up for OA were extracted. RESULTS After OA treatment, the mean AHI decreased from 22.6 ± 13.8 to 10.0 ± 10.2/h, and the mean rate of decrease in the AHI was 52.5 ± 38.4%. Regarding the success rate to OA therapy, criterion 1 (AHI < 5/h), criterion 2 (AHI < 10/h), criterion 3 (AHI < 15/h) and criterion 4 (AHI reduction rate ≥ 50%) accounted for 33.5, 66.3, 80.5 and 63.3%, respectively. The success rate of OA treatment decreased according to the increase in OSA severity, obesity level (higher BMI) and older age. CONCLUSIONS This study revealed the treatment success rate of OA on multiple criteria according to OSA severity, BMI and age. It may support for the clinician to make a decision on the OSA management.
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Affiliation(s)
- Kentaro Okuno
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Suita-shi, Osaka, Japan.,Department of Geriatric Dentistry, Osaka Dental University, Hirakata-shi, Osaka, Japan.,Center for Dental Sleep Medicine, Osaka Dental University Hospital, Chuo-ku, Osaka, Japan
| | - Akifumi Furuhashi
- Department of Oral and Maxillofacial Surgery, Aichi Medical University, Nagakute-shi, Aichi, Japan
| | - Shuhei Nakamura
- Dental Clinic for Sleep Disorders (Apnea and Snoring), Oral and Maxillofacial Rehabilitation, University Hospital of Dentistry, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Hiroshi Suzuki
- Division of Oral Function and Rehabilitation, Department of Oral Health Science, Nihon University School of Dentistry at Matsudo, Matsudo-shi, Chiba, Japan
| | - Takehiro Arisaka
- Ota Memorial Sleep Center, Sleep Surgery Center, Kawasaki-shi, Kanagawa, 210-0024, Japan
| | - Hitoshi Taga
- Dentistry and Oral Surgery, JR Tokyo General Hospital, Shibuya-ku, Tokyo, Japan
| | - Masataka Tamura
- Department of Dentistry and Maxillo-facial Surgery, Komatsu Hospital, Neyagawa-shi, Osaka, Japan
| | | | - Minoru Furuhata
- Furuhata Sleep-disordered Breathing Research Institute, Furuhata Dental Clinic, Minato-ku, Tokyo, Japan.,Snore & Sleep Apnea Treatment Center, Nippon Dental University Hospital Internal Medicine, Chiyoda-ku, Tokyo, Japan
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Chen H, Eckert DJ, van der Stelt PF, Guo J, Ge S, Emami E, Almeida FR, Huynh NT. Phenotypes of responders to mandibular advancement device therapy in obstructive sleep apnea patients: A systematic review and meta-analysis. Sleep Med Rev 2020; 49:101229. [DOI: 10.1016/j.smrv.2019.101229] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/12/2022]
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Sutherland K, Cistulli PA. Oral Appliance Therapy for Obstructive Sleep Apnoea: State of the Art. J Clin Med 2019; 8:jcm8122121. [PMID: 31810332 PMCID: PMC6947472 DOI: 10.3390/jcm8122121] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 12/17/2022] Open
Abstract
Obstructive sleep apnoea (OSA) represents a significant global health burden, with impact on cardiometabolic health, chronic disease, productivity loss and accident risk. Oral appliances (OA) are an effective therapy for OSA and work by enlarging and stabilising the pharyngeal airway to prevent breathing obstructions during sleep. Although recommended in clinical guidelines for OSA therapy, they are often considered only as second-line therapy following positive airway pressure (PAP) therapy failure. There has been a long-standing barrier to selecting OA over PAP therapy due to the inability to be certain about the level of efficacy in individual OSA patients. A range of methods to select OSA patients for OA therapy, based on the outcome of a single sleep study night, have been proposed, although none has been widely validated for clinical use. Emergent health outcome data suggest that equivalent apnoea–hypopnea index reduction may not be necessary to produce the same health benefits of PAP. This may be related to the more favourable adherence to OA therapy, which can now be objectively verified. Data on longer term health outcomes are needed, and there are additional opportunities for device improvement and combination therapy approaches. OAs have an important role in precision care of OSA as a chronic disorder through a multi-disciplinary care team. Future studies on real-world health outcomes following OA therapy are needed.
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Affiliation(s)
- Kate Sutherland
- Sleep Research Group, Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
- Department of Respiratory Medicine, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- Correspondence:
| | - Peter A. Cistulli
- Sleep Research Group, Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
- Department of Respiratory Medicine, Royal North Shore Hospital, Sydney, NSW 2065, Australia
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Bamagoos AA, Cistulli PA, Sutherland K, Madronio M, Eckert DJ, Hess L, Edwards BA, Wellman A, Sands SA. Polysomnographic Endotyping to Select Patients with Obstructive Sleep Apnea for Oral Appliances. Ann Am Thorac Soc 2019; 16:1422-1431. [PMID: 31394914 PMCID: PMC6945467 DOI: 10.1513/annalsats.201903-190oc] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/15/2019] [Indexed: 01/16/2023] Open
Abstract
Rationale: Oral appliance therapy is efficacious in many patients with obstructive sleep apnea (OSA), but prediction of treatment outcome is challenging. Small, detailed physiological studies have identified key OSA endotypic traits (pharyngeal collapsibility and loop gain) as determinants of greater oral appliance efficacy.Objectives: We used a clinically applicable method to estimate OSA traits from routine polysomnography and identify an endotype-based subgroup of patients expected to show superior efficacy.Methods: In 93 patients (baseline apnea-hypopnea index [AHI], ≥20 events/h), we examined whether polysomnography-estimated OSA traits (pharyngeal: collapsibility and muscle compensation; nonpharyngeal: loop gain, arousal threshold, and ventilatory response to arousal) were associated with oral appliance efficacy (percentage reduction in AHI from baseline) and could predict responses to treatment. Multivariable regression (with interactions) defined endotype-based subgroups of "predicted" responders and nonresponders (based on 50% reduction in AHI). Treatment efficacy was compared between the predicted subgroups (with cross-validation).Results: Greater oral appliance efficacy was associated with favorable nonpharyngeal traits (lower loop gain, higher arousal threshold, and lower response to arousal), moderate (nonmild, nonsevere) pharyngeal collapsibility, and weaker muscle compensation (overall R2 = 0.30; adjusted R2 = 0.19; P = 0.003). Predicted responders (n = 54), compared with predicted nonresponders (n = 39), exhibited a greater reduction in AHI from baseline (mean [95% confidence interval], 73% [66-79] vs. 51% [38-61]; P < 0.0001) and a lower treatment AHI (8 [6-11] vs. 16 [12-20] events/h; P = 0.002). Differences persisted after adjusting for clinical covariates (including baseline AHI, body mass index, and neck circumference).Conclusions: Quantifying OSA traits using clinical polysomnography can identify an endotype-based subgroup of patients that is highly responsive to oral appliance therapy. Prospective validation is warranted.
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Affiliation(s)
- Ahmad A. Bamagoos
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Department of Physiology, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
- Sleep and Breathing Lab, Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
| | - Peter A. Cistulli
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Kate Sutherland
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Melanie Madronio
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Danny J. Eckert
- Sleep and Breathing Lab, Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
- Adelaide Institute for Sleep Health, Flinders University, Bedford Park, South Australia, Australia
| | - Lauren Hess
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Bradley A. Edwards
- Sleep and Circadian Medicine Laboratory, Department of Physiology, and
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Andrew Wellman
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Scott A. Sands
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
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Cistulli PA, Sutherland K. Phenotyping obstructive sleep apnoea—Bringing precision to oral appliance therapy. J Oral Rehabil 2019; 46:1185-1191. [DOI: 10.1111/joor.12857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/04/2019] [Accepted: 07/04/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Peter A. Cistulli
- Sleep Research Group, Charles Perkins Centre, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine Royal North Shore Hospital Sydney New South Wales Australia
| | - Kate Sutherland
- Sleep Research Group, Charles Perkins Centre, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine Royal North Shore Hospital Sydney New South Wales Australia
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