Improvement of Cognitive and Psychomotor Performance in Patients with Mild to Moderate Obstructive Sleep Apnea Treated with Mandibular Advancement Device: A Prospective 1-Year Study

Study Objectives:

This study aimed to provide the evidence on effect of mandibular advancement device (MAD) therapy on long-term cognitive and psychomotor performance, excessive daytime sleepiness, and quality of life in patients with mild to moderate obstructive sleep apnea (OSA).

Methods:

A total of 15 patients with mild to moderate OSA were treated with MAD therapy and they were followed up after 3 mo and 1 y of therapy. The patients were tested on three different tests of cognitive and psychomotor performance using the computer-based system Complex Reactionmeter Drenovac (CRD-series) at baseline and at the time of follow-up, and the 36-Item Short Form Health Survey (SF-36) questionnaire and Epworth Sleepiness Scale were used to assess their quality of life and excessive daytime sleepiness, respectively.

Results:

The mean apnea-hypopnea index (AHI) decreased significantly from 22.9 ± 5.9 events/h at baseline, to 9.7 ± 4.5 events/h after 1 y of MAD therapy (p < 0.001). There was significant improvement on all three CRD-series tests used after 1 y of MAD therapy, considering total test solving time (TTST) and minimal single task solving time (MinT), whereas total number of errors committed during the tests (TE) remained unchanged. Self-reported measures, excessive daytime sleepiness, and three domains of quality of life, social functioning, general health perception, and health change following MAD therapy showed significant improvements after 1 y of MAD therapy.

Conclusions:

This study demonstrates significant improvements in cognitive and psychomotor performance, particularly in the domain of perceptive abilities, convergent thinking (constructing and solving simple mathematical tasks) and psychomotor reaction times, excessive daytime sleepiness, and quality of life in patients with mild to moderate OSA following MAD therapy.

Citation:

Galic T, Bozic J, Pecotic R, Ivkovic N, Valic M, Dogas Z. Improvement of cognitive and psychomotor performance in patients with mild to moderate obstructive sleep apnea treated with mandibular advancement device: a prospective 1-year study. J Clin Sleep Med 2016;12(2):177–186.

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