Cardioembolic Stroke: Past Advancements, Current Challenges, and Future Directions

Area of Science:

• Neurology
• Cardiology
• Stroke Medicine

Background:

• Cardioembolic stroke constitutes over 20% of ischemic strokes, presenting poorer prognoses.
• Atrial fibrillation (AF) is the primary risk factor, necessitating focused prevention strategies.
• Atrial cardiopathy is an emerging cause of embolic stroke of unknown source.

Purpose of the Study:

• To provide an updated review on cardioembolic stroke, emphasizing AF and atrial cardiopathy.
• To discuss current and future therapeutic approaches for stroke prevention in AF patients.
• To highlight the role of cardiac monitoring and anticoagulation in managing stroke risk.

Main Methods:

• This study is a narrative review synthesizing current literature.
• It examines the efficacy of direct oral anticoagulants (DOACs) versus warfarin.
• It discusses various cardiac monitoring techniques for AF detection and the implications of catheter ablation.

Main Results:

• DOACs are preferred for AF-related stroke prevention, though their use in cryptogenic stroke requires further study.
• Optimal timing for initiating anticoagulation post-stroke and after intracerebral hemorrhage remains debated.
• The impact of catheter ablation on stroke prevention, particularly in heart failure patients, needs clarification.

Conclusions:

• Refining stroke risk prediction, optimizing AF detection, and exploring atrial cardiopathy as a therapeutic target are crucial.
• Further research is needed to clarify the roles of ablation and anticoagulation in preventing recurrent embolic strokes.
• Improved management strategies are essential to reduce the significant burden of cardioembolic stroke.