Intravenous thrombolytic treatment and endovascular thrombectomy for ischaemic wake-up stroke

医学 冲程(发动机) 缺血性中风 溶栓 心脏病学 内科学
作者
Melinda B Roaldsen,Haakon Lindekleiv,Ellisiv B. Mathiesen
出处
期刊:The Cochrane library [Elsevier]
卷期号:2021 (12)
标识
DOI:10.1002/14651858.cd010995.pub3
摘要

BACKGROUND About one in five strokes occur during sleep (wake-up stroke). People with wake-up strokes have previously been considered to be ineligible for thrombolytic treatment because the time of stroke onset is unknown. However, recent studies suggest benefit from recanalisation therapies in selected patients. OBJECTIVES To assess the effects of intravenous thrombolysis and endovascular thrombectomy versus control in people with acute ischaemic stroke presenting on awakening from sleep. SEARCH METHODS We searched the Cochrane Stroke Group Trials Register (last search 24 of May 2021). In addition, we searched the following electronic databases in May 2021: Cochrane Central Register of Controlled Trials (CENTRAL; 2021, Issue 4 of 12, April 2021) in the Cochrane Library, MEDLINE, Embase, ClinicalTrials.gov, and the World Health Organization International Clinical Trials Registry Platform. We searched the Stroke Trials Registry (last search 7 December 2017, as the site is currently inactive). We also screened references lists of relevant trials, contacted trialists, and undertook forward tracking of relevant references. SELECTION CRITERIA Randomised controlled trials (RCTs) of intravenous thrombolytic drugs or endovascular thrombectomy treatments in people with acute ischaemic stroke presenting upon awakening. DATA COLLECTION AND ANALYSIS Two review authors applied the inclusion criteria, extracted data, and assessed risk of bias and the certainty of the evidence using the GRADE approach. We obtained both published and unpublished data for participants with wake-up strokes. We excluded participants with strokes of unknown onset if the symptoms did not begin upon awakening. MAIN RESULTS We included seven trials with a total of 980 participants, of which five trials with 775 participants investigated intravenous thrombolytic treatment and two trials with 205 participants investigated endovascular thrombectomy in large vessel occlusion in the anterior intracranial circulation. All trials used advanced imaging for selecting patients to treat. For intravenous thrombolytic treatment, good functional outcome (defined as modified Rankin Scale score 0 to 2) at 90 days follow-up was observed in 66% of participants randomised to thrombolytic treatment and 58% of participants randomised to control (risk ratio (RR) 1.13, 95% confidence interval (CI) 1.01 to 1.26; P = 0.03; 763 participants, 5 RCTs; high-certainty evidence). Seven per cent of participants randomised to intravenous thrombolytic treatment and 10% of participants randomised to control had died at 90 days follow-up (RR 0.68, 95% CI 0.43 to 1.07; P = 0.09; 763 participants, 5 RCTs; high-certainty evidence). Symptomatic intracranial haemorrhage occurred in 3% of participants randomised to intravenous thrombolytic treatment and 1% of participants randomised to control (RR 3.47, 95% CI 0.98 to 12.26; P = 0.05; 754 participants, 4 RCTs; high-certainty evidence). For endovascular thrombectomy of large vessel occlusion, good functional outcome at 90 days follow-up was observed in 46% of participants randomised to endovascular thrombectomy and 9% of participants randomised to control (RR 5.12, 95% CI 2.57 to 10.17; P < 0.001; 205 participants, 2 RCTs; high-certainty evidence). Twenty-two per cent of participants randomised to endovascular thrombectomy and 33% of participants randomised to control had died at 90 days follow-up (RR 0.68, 95% CI 0.43 to 1.07; P = 0.10; 205 participants, 2 RCTs; high-certainty evidence). AUTHORS' CONCLUSIONS In selected patients with acute ischaemic wake-up stroke, both intravenous thrombolytic treatment and endovascular thrombectomy of large vessel occlusion improved functional outcome without increasing the risk of death. However, a possible increased risk of symptomatic intracranial haemorrhage associated with thrombolytic treatment cannot be ruled out. The criteria used for selecting patients to treatment differed between the trials. All studies were relatively small, and six of the seven studies were terminated early. More studies are warranted in order to determine the optimal criteria for selecting patients for treatment.
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