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Utility of Sleep Questionnaires for Detecting Sleep Apnea in Ischemic Stroke Patients
S Mythirayee1, Dipti Baskar, G Seethalakshmi
1Department of Neurology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Annals of Indian Academy of Neurology
|April 10, 2025
Summary
Sleep questionnaires are not effective for screening sleep apnea in stroke patients. Further research is needed to develop better screening tools for this population.
Area of Science:
- Neurology
- Sleep Medicine
- Cardiovascular Research
Background:
- Sleep-disordered breathing is common in stroke survivors.
- It is linked to recurrent stroke and worse neurological outcomes.
- Polysomnography (PSG) is often impractical for routine screening in stroke patients.
Purpose of the Study:
- To evaluate the accuracy of sleep questionnaires in identifying sleep apnea in ischemic stroke patients.
- To compare the diagnostic performance of the Berlin Questionnaire and STOP-BANG questionnaire against PSG.
Main Methods:
- A hospital-based study involving 70 ischemic stroke patients.
- Utilized Kannada versions of the Berlin Questionnaire, STOP-BANG, and Epworth Sleepiness Scale (ESS).
- All participants underwent overnight PSG, with results scored by blinded investigators.
Main Results:
- High prevalence of sleep apnea (80%) observed, predominantly obstructive sleep apnea (77.5%).
- Berlin Questionnaire showed low sensitivity (0.51) and specificity (0.60).
- STOP-BANG questionnaire demonstrated moderate sensitivity (0.64) and specificity (0.70).
Conclusions:
- Current sleep questionnaires are inadequate as standalone screening tools for sleep apnea in stroke patients.
- There is a critical need for developing improved screening instruments tailored for stroke populations.
