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Association between obstructive sleep apnea and persistent postural-perceptual dizziness.
Anand K Bery1, Jayson Lee Azzi2, Andre Le3
1Department of Medicine, Division of Neurology, University of Ottawa, Ottowa, ON, Canada.
Summary
Obstructive sleep apnea (OSA) is common in patients with Persistent Postural-Perceptual Dizziness (PPPD). Screening questionnaires show promise for identifying PPPD patients at risk of OSA.
Area of Science:
- Neurology
- Sleep Medicine
- Otolaryngology
Background:
- Obstructive sleep apnea (OSA) is associated with vestibular dysfunction.
- Persistent Postural-Perceptual Dizziness (PPPD) is a frequent cause of chronic dizziness.
- The relationship between PPPD and OSA has not been previously studied.
Purpose of the Study:
- To determine the frequency of OSA in patients with PPPD.
- To evaluate the effectiveness of common OSA screening questionnaires in this patient group.
Main Methods:
- Polysomnography (PSG) was used to diagnose OSA in 25 PPPD patients.
- The sensitivity and specificity of the STOP BANG and Berlin Questionnaires were assessed.
Main Results:
- 56% of PPPD patients were diagnosed with OSA, often severe.
- OSA patients were older and had higher BMI.
- STOP BANG and Berlin Questionnaires showed moderate sensitivity but low specificity.
Conclusions:
- OSA prevalence is significantly higher in PPPD patients compared to the general population.
- Screening questionnaires may help identify PPPD patients at risk for OSA.
- Further research is needed to confirm these findings and explore OSA treatment's impact on PPPD symptoms.
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