© 2004 BMJ Publishing Group Ltd & British Thoracic Society
EDITORIAL
Sleep disordered breathing and stroke
Sleep disordered breathing and the outcome of stroke
Correspondence to:
Correspondence to:
Professor G J Gibson
Department of Respiratory Medicine, Freeman Hospital, Newcastle upon Tyne NE7 7DN, UK; g.j.gibson@ncl.ac.uk
Patients with OSA not only have an increased risk of stroke, but also a higher mortality and greater disability after stroke
Keywords: sleep disordered breathing; obstructive sleep apnoea; stroke; outcome
Abbreviations: AHI, apnoea-hypopnoea index; OSA, obstructive sleep apnoea; SDB, sleep disordered breathing; TIA, transient ischaemic attack
| The first 150 words of the full text of this article appear below. |
Interest in abnormal breathing after stroke has a long history dating back at least to the observations of John Cheyne in 1818.1 In recent years this interest has been reawakened by a number of publications on the relations between sleep disordered breathing (SDB) and stroke. These studies have been of two main typesthose investigating the possible increased risk of stroke in individuals with obstructive sleep apnoea (OSA) and those reporting a high prevalence of SDB after stroke and its possible effects on residual disability and mortality. Unravelling the direction of causalitythat is, whether OSA causes stroke or stroke causes OSAhas proved challenging.25
Most of the evidence on the risk of stroke associated with OSA is circumstantial and is based on case-control studies in which a history of snoring, with or without other features suggestive of OSA, is compared in patients with stroke and matched controls.611
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