Durability of treatment effects of the Sleep Position Trainer versus oral appliance therapy in positional OSA: 12-month follow-up of a randomized controlled trial

  • Maurits H. T. de Ruiter
  • Linda B. L. Benoist
  • Nico de Vries
  • Jan de Lange
Sleep Breathing Physiology and Disorders • Original Article

Abstract

Purpose

The Sleep Position Trainer (SPT) is a new option for treating patients with positional obstructive sleep apnea (POSA). This study investigated long-term efficacy, adherence, and quality of life during use of the SPT device compared with oral appliance therapy (OAT) in patients with POSA.

Methods

This prospective, multicenter trial randomized patients with mild to moderate POSA (apnea-hypopnea index [AHI] 5–30/h) to SPT or OAT. Polysomnography was performed at baseline and after 3 and 12 months’ follow-up. The primary endpoint was OSA severity; adherence, quality of life, and adverse events were also assessed.

Results

Ninety-nine patients were randomized and 58 completed the study (29 in each group). Median AHI in the SPT group decreased from 13.2/h at baseline to 7.1/h after 12 months (P < 0.001); corresponding values in the OAT group were 13.4/h and 5.0/h (P < 0.001), with no significant between-group difference (P = 1.000). Improvements throughout the study were maintained at 12 months. Long-term median adherence was also similar in the two treatment groups; the proportion of patients who used their device for ≥ 4 h for 5 days in a week was 100% in the SPT group and 97.0% in the OAT group (P = 0.598).

Conclusions

The efficacy of SPT therapy was maintained over 12 months and was comparable to that of OAT in patients with mild to moderate POSA. Adherence was relatively high, and similar in the two groups.

Trial registration:

www.clinicaltrials.gov (NCT02045576).

Keywords

Obstructive sleep apnea Sleep position Positional therapy Oral appliance therapy Randomized controlled trial 

Supplementary material

11325_2017_1568_MOESM1_ESM.docx (31 kb)
Table S1(DOCX 31 kb)
11325_2017_1568_MOESM2_ESM.docx (26 kb)
Table S2(DOCX 26 kb)
11325_2017_1568_MOESM3_ESM.docx (28 kb)
Table S3(DOCX 27 kb)

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Oral and Maxillofacial SurgeryAcademic Medical CenterAmsterdamThe Netherlands
  2. 2.Department of Otorhinolaryngology Head and Neck SurgeryOLVG WestAmsterdamThe Netherlands
  3. 3.Departments of Otorhinolaryngology and Head and Neck SurgeryErasmus University Medical CenterRotterdamThe Netherlands
  4. 4.Department of Oral Kinesiology of the Academic Centre for Dentistry Amsterdam (ACTA)AmsterdamThe Netherlands
  5. 5.Departments of Otolaryngology and Head and Neck SurgeryAntwerp University HospitalAntwerpBelgium

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