ArticleSleep medicine2010
MRI of the pharynx in ischemic stroke patients with and without obstructive sleep apnea.
Article in Sleep medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- Echocardiographic findings in ischemic stroke patients with obstructive sleep apnea.Sleep medicine · 2011Trial
- Opportunistic pharyngeal length measurement on routine brain MRI: A novel screening tool for severe obstructive sleep apnea in acute stroke.Sleep & breathing = Schlaf & Atmung · 2025Article
- Post-Stroke Sleep-Disordered Breathing-Pathophysiology and Therapy Options.Frontiers in surgery · 2018Review
- Oropharyngeal Muscle Exercise Therapy Improves Signs and Symptoms of Post-stroke Moderate Obstructive Sleep Apnea Syndrome.Frontiers in neurology · 2018Article
- Supra-Epiglottic Upper Airway Volume in Elderly Patients with Obstructive Sleep Apnea Hypopnea Syndrome.PloS one · 2016Article
- Association of naso-Oro-pharyngeal structures with the sleep architecture in suspected obstructive sleep apnea.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2014Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundObstructive sleep apnea (OSA) is common after stroke and associated with poor stroke outcomes. Whether OSA after acute stroke is caused by anatomic, physiologic, or both etiologies has not been studied. We therefore used brain magnetic resonance imaging (MRI) scans to assess oropharyngeal anatomy in stroke patients with and without OSA.
methodsPatients within 7 days of ischemic stroke underwent nocturnal polysomnography. Sagittal T1-weighted MRI performed for clinical purposes was used to measure retropalatal distance, soft palatal length, soft palatal thickness, retroglossal space, and tongue length. Nasopharyngeal area and high retropharyngeal area were measured from axial T2-weighted images, and lateral pharyngeal wall thickness from coronal T1-weighted images.
resultsAmong 27 subjects, 18 (67%) had OSA (apnea/hypopnea index (AHI)5). Demographics, vascular risk factors, and stroke severity were similar in the two groups. Median retropalatal distance was shorter in subjects with OSA (Wilcoxon rank-sum test, p=0.03). Shorter retropalatal distance was associated with higher AHI (linear regression, p=0.04). None of the other morphological characteristics differed.
conclusionsAnatomic difference between awake acute stroke patients with and without OSA shows that the sleep disorder cannot be attributed solely to sleep, sleeping position, or changes in neuromuscular control that are specific to the sleep state.
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