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Cardioembolic stroke
1Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas 75235-9047, USA.
Insights
Cardioembolic stroke, a common cause of ischemic stroke, originates from the heart. Understanding cardiac sources and using echocardiography aids in preventing and treating these strokes.
Area of Science:
- Cardiology
- Neurology
- Vascular Medicine
Background:
- Cardioembolic stroke represents 16-20% of all ischemic strokes.
- Cardiac etiologies are a significant cause of ischemic neurologic deficits.
- Identifying cardiac sources is crucial for effective stroke management.
Purpose of the Study:
- To review potential cardiac sources of emboli causing stroke.
- To discuss the role of anticoagulation in preventing cardioembolic stroke.
- To evaluate the utility of echocardiography in diagnosing cardioembolic stroke.
Main Methods:
- Literature review of cardiac conditions linked to embolism.
- Analysis of anticoagulation strategies for stroke prevention.
- Assessment of echocardiography's role in patient evaluation.
- Proposal of an echocardiographic diagnostic algorithm.
Main Results:
- Various cardiac conditions can lead to embolic stroke.
- Anticoagulation is vital for primary and secondary prevention.
- Echocardiography is a key diagnostic tool for identifying cardiac sources.
- A structured approach using echocardiography can guide clinical decisions.
Conclusions:
- A high index of suspicion for cardiac sources is warranted in ischemic stroke patients.
- Comprehensive cardiac evaluation, including echocardiography, is essential.
- Anticoagulation therapy plays a critical role in managing cardioembolic stroke.
- The proposed algorithm can optimize echocardiographic utilization for stroke patients.
Abstract:
Cardioembolic stroke accounts for 1 out of every 5 to 6 ischemic strokes. A potential cardiac source should be considered in all patients presenting with ischemic neurologic deficits. a clear understanding of the various types of cardiac conditions associated with cardioembolic stroke is important. This article reviews potential cardiac sources of emboli and discusses the role of anticoagulation in both primary and secondary prevention of cardioembolic stroke. The role of echocardiography in evaluating patients with possible cardioembolic stroke is also addressed, and an algorithm is proposed for the use of echocardiography in evaluating patients with ischemic neurologic deficits.