Intracranial and systemic atherosclerosis in the NAVIGATE ESUS trial : Recurrent stroke risk and response to antithrombotic therapy

Copyright © 2020. Published by Elsevier Inc..

BACKGROUND: Non-stenotic intracranial and systemic atherosclerosis are associated with ischemic stroke. We report frequency and response to anticoagulant vs. antiplatelet prophylaxis of patients with embolic stroke of undetermined source (ESUS) who have non-stenotic intracranial atherosclerosis and/or systemic atherosclerosis.

METHODS: Exploratory analysis of the international NAVIGATE ESUS randomized trial comparing rivaroxaban 15mg daily with aspirin 100mg daily in 7213 patients with recent ESUS. Among participants with results of intracranial arterial imaging with either computed tomographic angiography (CTA) or magnetic resonance angiography (MRA), the frequency and predictors of non-stenotic intracranial and systemic atherosclerosis and responses to antithrombotic therapy were assessed.

RESULTS: Among 4723 participants with available intracranial CTA or MRA results (65% of the trial cohort), the prevalence of intracranial atherosclerosis was 16% (n=739). Patient features independently associated with intracranial atherosclerosis included East Asian region (odds ratio 2.7, 95%CI 2.2,3.3) and cervical carotid plaque (odds ratio 2.3, 95%CI 1.9,2.7), among others. The rate of recurrent ischemic stroke averaged 4.8%/year among those with intracranial atherosclerosis vs. 5.0.%/year for those without (HR 0.95, 95%CI 0.65, 1.4). Among those with intracranial atherosclerosis, the recurrent ischemic stroke rate was higher if assigned to rivaroxaban (5.8%/year) vs. aspirin (3.7%/year), but the difference was not statistically significant (HR 1.6, 95%CI 0.78, 3.3). There was trend for the effect of antithrombotic treatments to be different according to the presence or absence of intracranial atherosclerosis (pinteraction=0.09). Among participants with evidence of systemic atherosclerosis by either history or imaging (n=3820), recurrent ischemic stroke rates were similar among those assigned to rivaroxaban (5.5%/year) vs. aspirin (4.9%/year)(HR 1.1, 95%CI 0.84, 1.5).

CONCLUSIONS: East Asia region was the strongest factor associated with intracranial atherosclerosis. There were no statistically significant differences between rivaroxaban and aspirin prophylaxis for recurrent ischemic stroke in patients with non-stenotic intracranial atherosclerosis and/or systemic atherosclerosis.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association - 29(2020), 8 vom: 18. Aug., Seite 104936

Sprache:

Englisch

Beteiligte Personen:

Ameriso, Sebastian F [VerfasserIn]
Amarenco, Pierre [VerfasserIn]
Pearce, Lesly A [VerfasserIn]
Perera, Kanjana S [VerfasserIn]
Ntaios, George [VerfasserIn]
Lang, Wilfried [VerfasserIn]
Bereczki, Daniel [VerfasserIn]
Uchiyama, Shinichiro [VerfasserIn]
Kasner, Scott E [VerfasserIn]
Yoon, Byung-Woo [VerfasserIn]
Lavados, Pablo [VerfasserIn]
Firstenfeld, Alfredo [VerfasserIn]
Mikulik, Robert [VerfasserIn]
Povedano, Guillermo Pablo [VerfasserIn]
Ferrari, Jorge [VerfasserIn]
Mundl, Hardi [VerfasserIn]
Berkowitz, Scott D [VerfasserIn]
Connolly, Stuart J [VerfasserIn]
Hart, Robert G [VerfasserIn]

Links:

Volltext

Themen:

9NDF7JZ4M3
Aspirin
Cerebrovascular atherosclerosis
Clinical Trial, Phase III
Comparative Study
ESUS
Embolic stroke
Factor Xa Inhibitors
Fibrinolytic Agents
Intracranial atherosclerosis
Journal Article
Multicenter Study
Platelet Aggregation Inhibitors
R16CO5Y76E
Randomized Controlled Trial
Randomized trial
Rivaroxaban

Anmerkungen:

Date Completed 30.10.2020

Date Revised 30.10.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jstrokecerebrovasdis.2020.104936

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM312659075