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Updated: May 13, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
[Advances in the secondary prevention of cardioembolic stroke]
1Unidad de Ictus, Servicio de Neurología, Hospital Universitario Ramón y Cajal, Madrid, España. jmasjuan.hrc@salud.madrid.org
Abstract:
Non-valvular atrial fibrillation (NVAF) is the main cause of cardioembolic stroke. Classically, prevention consists of oral antivitamin-K anticoagulants (AVK), which, despite their demonstrated efficacy, continue to be underused due to their numerous drawbacks. Recently, a new generation of oral anticoagulants has been shown to have a better safety profile and greater efficacy than AVK. The studies that have compared rivoraxaban, dabigatran and apixaban with warfarin have also included a substantial proportion of patients who had previously had a stroke. The results of the substudies performed in this population with a high risk of hemorrhagic and embolic events have been consistent with those in the overall populations in these studies. The new anticoagulants are a feasible alternative to AVK in the secondary prevention of ictus in patients with NVAF. When anticoagulant therapy is contraindicated, percutaneous closure of the left atrial appendage could be an alternative.
Insights
New oral anticoagulants offer a safer and more effective alternative to traditional warfarin for preventing strokes in patients with non-valvular atrial fibrillation (NVAF). These novel drugs are suitable for secondary stroke prevention in high-risk NVAF patients.
Area of Science:
- Cardiology
- Neurology
- Pharmacology
Background:
- Non-valvular atrial fibrillation (NVAF) is a primary cause of cardioembolic stroke.
- Traditional oral antivitamin-K anticoagulants (AVK) are effective but underused due to drawbacks.
- Recent advancements introduced novel oral anticoagulants (NOACs) with improved safety and efficacy profiles.
Purpose of the Study:
- To evaluate the efficacy and safety of NOACs compared to AVK in stroke prevention for NVAF patients.
- To assess the role of NOACs in secondary stroke prevention, particularly in high-risk populations.
- To explore alternative treatments for NVAF patients with contraindications to anticoagulant therapy.
Main Methods:
- Analysis of clinical trial data comparing rivaroxaban, dabigatran, and apixaban against warfarin.
- Inclusion of substudy data from patients with a history of stroke.
- Review of studies focusing on patients at high risk for hemorrhagic and embolic events.
Main Results:
- NOACs demonstrated comparable or superior safety and efficacy to AVK in the overall NVAF population.
- Substudy results in patients with prior stroke were consistent with overall study findings.
- NOACs represent a viable alternative to AVK for secondary stroke prevention in NVAF.
Conclusions:
- Novel oral anticoagulants are a feasible and effective alternative to AVK for secondary stroke prevention in non-valvular atrial fibrillation.
- Percutaneous closure of the left atrial appendage is a potential alternative when anticoagulant therapy is contraindicated.
- These findings support the expanded use of NOACs in managing NVAF to reduce stroke risk.
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