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Sleep for Stroke Management and Recovery Trial (Sleep SMART): Rationale and methods.

Brown DL, Durkalski V, Durmer JS, Broderick JP, Zahuranec DB, Levine DA, Anderson CS, Bravata DM, Yaggi HK, Morgenstern LB, Moy CS, Chervin RD. Sleep for Stroke Management and Recovery Trial (Sleep SMART): Rationale and methods. International journal of stroke : official journal of the International Stroke Society. 2020 Oct 1; 15(8):923-929.

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Abstract:

RATIONALE: Obstructive sleep apnea is common among patients with acute ischemic stroke and is associated with reduced functional recovery and an increased risk for recurrent vascular events. AIMS AND/OR HYPOTHESIS: The Sleep for Stroke Management and Recovery Trial (Sleep SMART) aims to determine whether automatically adjusting continuous positive airway pressure (aCPAP) treatment for obstructive sleep apnea improves clinical outcomes after acute ischemic stroke or high-risk transient ischemic attack. SAMPLE SIZE ESTIMATE: A total of 3062 randomized subjects for the prevention of recurrent serious vascular events, and among these, 1362 stroke survivors for the recovery outcome. METHODS AND DESIGN: Sleep SMART is a phase III, multicenter, prospective randomized, open, blinded outcome event assessed controlled trial. Adults with recent acute ischemic stroke/transient ischemic attack and no contraindication to aCPAP are screened for obstructive sleep apnea with a portable sleep apnea test. Subjects with confirmed obstructive sleep apnea but without predominant central sleep apnea proceed to a run-in night of aCPAP. Subjects with use ( = 4?h) of aCPAP and without development of significant central apneas are randomized to aCPAP plus usual care or care-as-usual for six months. Telemedicine is used to monitor and facilitate aCPAP adherence remotely. STUDY OUTCOMES: Two separate primary outcomes: (1) the composite of recurrent acute ischemic stroke, acute coronary syndrome, and all-cause mortality (prevention) and (2) the modified Rankin scale scores (recovery) at six- and three-month post-randomization, respectively. DISCUSSION: Sleep SMART represents the first large trial to test whether aCPAP for obstructive sleep apnea after stroke/transient ischemic attack reduces recurrent vascular events or death, and improves functional recovery.




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