CEREBROVASCULAR DISEASE: Edited by Mitchell S.V. ElkindSleep apnea and strokeMcDermott, Mollie; Brown, Devin L.Author Information University of Michigan Stroke Program, Cardiovascular Center, Ann Arbor, Michigan, USA Correspondence to Mollie McDermott, MD, MS, University of Michigan Stroke Program, Cardiovascular Center, 3rd Floor, Reception C, 1500 East Medical Center Drive, SPC 5855, Ann Arbor, MI 48109-5855, USA. Tel: +1 734 936 4420; fax: +1 734 232 4447; e-mail: email@example.com Current Opinion in Neurology: February 2020 - Volume 33 - Issue 1 - p 4-9 doi: 10.1097/WCO.0000000000000781 Buy Metrics Abstract Purpose of review Stroke and sleep apnea are highly prevalent conditions with a physiologically plausible bidirectional relationship. This review addresses prestroke sleep apnea, wake-up stroke and sleep apnea, and poststroke sleep apnea, with an attempt to highlight research published in the last 18 months. Recent findings Sleep apnea is highly prevalent poststroke. Poststroke sleep apnea is associated with worse poststroke functional and cognitive outcomes and a higher risk of recurrent stroke. Physiologic tests are needed to diagnose sleep apnea in poststroke patients as sleep apnea questionnaires do not perform well in this population. The role of CPAP in poststroke management is not yet well established. Summary Sleep apnea is a well established independent risk factor for stroke that confers an approximately two-fold increased risk of incident stroke. Sleep apnea is highly prevalent poststroke and is associated with worse outcomes after stroke. Sleep apnea is an attractive target for research addressing secondary stroke prevention and recovery. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.