Related Experiment Videos
Obstructive sleep apnea is common in medically refractory epilepsy patients
1Department of Neurology, University of Michigan Medical School, Ann Arbor, USA. bmalow@umich.edu
Neurology
|November 4, 2000
Summary
Obstructive sleep apnea (OSA) is common in patients with epilepsy, particularly in older males and those with nocturnal seizures. Further research is needed to explore the impact of treating OSA on seizure control.
Area of Science:
- Neurology
- Sleep Medicine
- Pulmonology
Background:
- Obstructive sleep apnea (OSA) and epilepsy frequently coexist.
- Treatment for OSA has shown potential benefits for seizure frequency and daytime sleepiness.
Purpose of the Study:
- To determine the prevalence of OSA in patients with medically refractory epilepsy.
- To investigate the association between OSA and specific survey items in this patient group.
Main Methods:
- Polysomnography (PSG) was performed on 39 epilepsy surgery candidates.
- Participants completed validated questionnaires on sleep disorders (SA/SDQ) and daytime sleepiness (ESS).
Main Results:
- One-third of subjects were diagnosed with OSA (Respiratory Disturbance Index [RDI] >= 5).
- Moderate to severe OSA (RDI > 20) was observed in 13% of participants.
- OSA was more prevalent in older males and those experiencing seizures during sleep (p < 0.05).
Conclusions:
- Undiagnosed OSA is common in medically refractory epilepsy patients, especially older males and those with nocturnal seizures.
- The potential benefits of OSA treatment on seizure frequency and sleepiness require further controlled investigation.