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Sleep Disorders
Volume 2014, Article ID 317615, 7 pages
http://dx.doi.org/10.1155/2014/317615
Research Article

Screening Sleep Disordered Breathing in Stroke Unit

1Department of Clinical Neurophysiology, Medical Imaging Centre and Hospital Pharmacy, Tampere University Hospital, 33521 Tampere, Finland
2Department of Neuroscience and Rehabilitation, Tampere University Hospital, 33521 Tampere, Finland
3School of Medicine, University of Tampere, 33520 Tampere, Finland
4School of Health Sciences, University of Tampere, 33520 Tampere, Finland

Received 25 March 2014; Revised 12 May 2014; Accepted 14 May 2014; Published 27 May 2014

Academic Editor: Marco Zucconi

Copyright © 2014 Kirsi Väyrynen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In acute stroke, OSA has been found to impair rehabilitation and increase mortality but the effect of central apnea is more unclear. The aim of the present study was to evaluate the feasibility of using limited ambulatory recording system (sleep mattress to evaluate nocturnal breathing and EOG-electrodes for sleep staging) in sleep disordered breathing (SDB) diagnostics in mild acute cerebral ischemia patients and to discover the prevalence of various SDB-patterns among these patients. 42 patients with mild ischemic stroke or transient ischemic attack were studied. OSA was found in 22 patients (52.4%). Central apnea was found in two patients (4.8%) and sustained partial obstruction in only one patient (2.4%). Sleep staging with EOG-electrodes only yielded a similar outcome as scoring with standard rules. OSA was found to be common even after mild stroke. Its early diagnosis and treatment would be favourable in order to improve recovery and reduce mortality. Our results suggest that OSA can be assessed by a limited recording setting with EOG-electrodes, sleep mattress, and pulse oximetry.