scholarly journals The Efficacy of Device Designs (Mono-block or Bi-block) in Oral Appliance Therapy for Obstructive Sleep Apnea Patients: A Systematic Review and Meta-Analysis

Author(s):  
Hiroyuki Ishiyama ◽  
Daichi Hasebe ◽  
Kazumichi Sato ◽  
Yuki Sakamoto ◽  
Akifumi Furuhashi ◽  
...  

Oral appliance (OAm) therapy has demonstrated efficacy in treating obstructive sleep apnea (OSA). The aim of this systematic review was to clarify the efficacy of device designs (Mono-block or Bi-block) in OAm therapy for OSA patients. We performed a meta-analysis using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. Two studies (Mono-block OAm versus Bi-block OAm) remained eligible after applying the exclusion criteria. When comparing Mono-block OAm and Bi-block OAm, Mono-block OAm significantly reduced the apnea–hypopnea index (2.92; 95% confidence interval (95%CI), 1.26 to 4.58; p = 0.0006), and patient preference for Mono-block OAm was significantly higher (2.06; 95%CI, 1.44 to 2.06; p < 0.0001). Lowest SpO2, arousal index, non-REM stage 3, sleep efficiency, Epworth Sleepiness Scale (ESS), Snoring Scale, and side effects were not significantly different between the two groups (lowest SpO2: −11.18; 95%CI, −26.90 to 4.54; p = 0.16, arousal index: 4.40; 95%CI, −6.00 to 14.80; p = 0.41, non-REM stage 3: −2.00; 95%CI, −6.00 to 14.80; p = 0.41, sleep efficiency: −1.42, 95%CI, −4.71 to 1.86; p = 0.40, ESS: 0.12; 95%CI, −1.55 to 1.79; p = 0.89, Snoring Scale: 0.55; 95%CI, −0.73 to 1.83, p = 0.55, side effects: 1.00, 95%CI, 0.62 to 1.61, p = 1.00). In this systematic review, the use of Mono-block OAm was more effective than Bi-block OAm for OSA patients.

FACE ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 65-70
Author(s):  
Paul B. Lee ◽  
Michael T. Chung ◽  
Jared Johnson ◽  
Jordyn Lucas ◽  
Caitlin R. Priest ◽  
...  

Objective: There is a high prevalence of obstructive sleep apnea (OSA) in pediatric and adult Down Syndrome (DS) patients that is refractory to adenotonsillectomy and continuous positive airway pressure. Newer treatment modalities have emerged with improved outcomes. The objective is to provide an updated systematic review and meta-analysis to analyze the clinical outcomes of OSA in pediatric and adult DS patients with hypoglossal nerve stimulation using Inspire, midline posterior glossectomy plus lingual tonsillectomy (MPG + LT), and combined genioglossus advancement plus radiofrequency (GGS + RF). Methods: A comprehensive literature search of PubMed and Google Scholar was performed followed by a meta-analysis. Studies with preoperative and post-operative Apnea Hypopnea Index (AHI) values were included with patients serving as their own control. Results: Across 5 studies, 56 patients were analyzed. The mean reduction in AHI was statistically significant before vs. after procedure ( P < .001 for hypoglossal nerve stimulation using Inspire with a paired 2-tailed t-test and P = .031 for MPG + LT). Although individual patient AHI values were unavailable in the GGS + RF study, the standard difference in mean AHI was also significant for GGS + RF with P = .001. Device malfunction was the most common complication for Inspire while postoperative bleeding was observed for MPG + LT and nasopharyngeal obstruction and retropalatal collapse were observed for GGS + RF. Conclusion: This review reveals significant improvement in AHI with Inspire, MPG + LT, and GGS + RF for DS patients with refractory OSA. Further investigation is needed for comparison between these 3 therapies.


SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A335-A335
Author(s):  
A Morello Gearhart ◽  
B Gunaratnam ◽  
E Senthilvel

Abstract Introduction Obstructive sleep apnea (OSA) is highly prevalent in children with Down Syndrome (DS). The aim of this study was to assess the effectiveness of adenotonsillectomy (T&A) on polysomnographic parameters of children with DS. Methods Retrospective chart review of children with DS who underwent T&A between 2012-2019 was performed. Preoperative OSA severity was categorized by obstructive apnea-hypopnea index (OAHI): mild = 1-4.9 events/h; moderate = 5-9.9 events/h; severe ≥ 10 events/h. Results We identified 43 DS children with pre and post T&A polysomnographic data in a population of 162 DS patients. A total of 25 were male, mean age 5.1 years (± 3.8 years) and 56% Caucasians. Preoperative data showed 19% mild OSA, 30% moderate and 51% severe. Postoperatively, apnea-hypopnea index (AHI) normalized in 9.3%, 37.2% had mild OSA, 18.6% moderate and 34.9% severe. Overall, T&A resulted in significant improvement (p-value &lt;0.05) in mean AHI, (18.51 ± 28.05 vs 11.72 ± 16.43), SaO2 nadir (80.00 ± 14.82 vs 85.51 ± 5.94), sleep efficiency (81.97 ± 11.15 vs 85.9 ± 8.28), arousal index (16.14 ± 10.23 vs 14.45 ± 12.34), and wake after sleep onset (67.19 ± 46.89 vs 50.55 ± 40.83) and no statistical difference (p-value &gt;0.05) in end-tidal carbon dioxide (43.86 ± 9.56 vs 44.17 ± 3.78), Rapid Eye Movement (REM)% (15.86 ± 7.75 vs 15.92 ± 7.41), sleep latency (24.03 ± 34.39 vs 22.55 ± 21.11), and central apnea index (0.86 ± 1.38 vs 0.66 ± 0.82) in pre and post T&A data. There was no statistically significant difference in pre and post T&A polysomnographic parameters between 17 DS and 17 age and gender-matched non-DS control subjects. Conclusion Adenotonsillectomy resulted in improvement in AHI, oxygen desaturation nadir, sleep efficiency, arousal index and wake after sleep onset. However, a significant portion of children with DS continued to have moderate to severe OSA after T&A. Support None.


Author(s):  
Yuki Sakamoto ◽  
Akifumi Furuhashi ◽  
Eri Komori ◽  
Hiroyuki Ishiyama ◽  
Daichi Hasebe ◽  
...  

This systematic review clarifies the amount of effective protrusion in mandibular advancement devices of oral appliances required for obstructive sleep apnea (OSA). The systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Review Manager 5 and GRADEpro were used to combine trials and analyze data. The present review included three studies. In mild to moderate OSA cases, measured using the apnea–hypopnea index (AHI), 50% protrusion was more effective than 75% protrusion. However, 75% protrusion was more effective for severe cases. Sleep stage, Epworth Sleepiness Scale (ESS), snoring index, and side effects significantly differed between the groups. Additionally, 75% protrusion was more effective (AHI: 0.38, 95% CI: −0.89 to 1.65, p = 0.56; sleep stage 3: −1.20, 95% CI: 9.54–7.14, p = 0.78; ESS: 1.07, 95% CI: −0.09 to 2.24, p = 0.07; snoring index: 0.09, 95% CI: 0.05–0.13, p < 0.05; side effects: RR: 1.89, 95% CI: 0.36–9.92, p = 0.45). As per the AHI, 75% protrusion was effective in severe cases, whereas 50% protrusion was effective in moderate cases. Analysis of different surrogate outcomes indicated that 75% protrusion was more effective. Further, well-designed, larger trials should determine the benefits for patients. Additionally, investigations of adherence and side effects with long-term follow-up are needed.


2018 ◽  
Vol 40 ◽  
pp. 55-68 ◽  
Author(s):  
Grietje E. de Vries ◽  
Peter J. Wijkstra ◽  
Ewout J. Houwerzijl ◽  
Huib A.M. Kerstjens ◽  
Aarnoud Hoekema

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Macario Camacho ◽  
Omojo O. Malu ◽  
Yoseph A. Kram ◽  
Gaurav Nigam ◽  
Muhammad Riaz ◽  
...  

Objective. To systematically review the international literature for studies evaluating internal (NoZovent) and external (Breathe Right Strips) nasal dilators as treatment for obstructive sleep apnea (OSA).Study Design. Systematic review with meta-analysis.Methods. Four databases, including PubMed/MEDLINE, were searched through September 29, 2016.Results. One-hundred twelve studies were screened, fifty-eight studies were reviewed, and fourteen studies met criteria. In 147 patients, the apnea-hypopnea index (AHI) was reported, and there was an improvement from a mean ± standard deviation (M ± SD) of28.7±24.0to27.4±23.3events/hr,pvalue 0.64. There was no significant change in AHI, lowest oxygen saturation, or snoring index in OSA patients when using nasal dilators. However, a subanalysis demonstrated a slight reduction in apnea index (AI) with internal nasal dilators (decrease by 4.87 events/hr) versus minimal change for external nasal dilators (increase by 0.64 events/hr).Conclusion. Although nasal dilators have demonstrated improved nasal breathing, they have not shown improvement in obstructive sleep apnea outcomes, with the exception of mild improvement in apnea index when internal nasal dilators were used.


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