Risk Assessment of Stroke in Patients with Atrial Fibrillation: Current Shortcomings and Future Directions

Atrial fibrillation is a well-known risk factor for cardioembolic stroke; a number of risk stratification scoring systems have been developed to help differentiate which patients would stand to benefit from anticoagulation. However, these scoring systems cannot be utilized in patients whose atrial f...

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Bibliographic Details
Published in:Cardiovascular drugs and therapy 2019-02, Vol.33 (1), p.105-117
Main Authors: Hyman, Daniel A., Siebert, Vincent, Jia, Xiaoming, Alam, Mahboob, Levine, Glenn N., Virani, Salim S., Birnbaum, Yochai
Format: Article
Language:English
Subjects:
Anticoagulants
Cardiac arrhythmia
Cardiology
Electrocardiography
Electronic devices
Fibrillation
Health risks
Medicine
Medicine & Public Health
Patients
Review Article
Risk analysis
Risk assessment
Risk factors
Stroke
Thromboembolism
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Summary:Atrial fibrillation is a well-known risk factor for cardioembolic stroke; a number of risk stratification scoring systems have been developed to help differentiate which patients would stand to benefit from anticoagulation. However, these scoring systems cannot be utilized in patients whose atrial fibrillation has not been diagnosed. As implantable cardiac monitors become more prevalent, it becomes possible to identify occult, subclinical atrial fibrillation. With this data, it is also possible to examine the relationship between episodes of paroxysmal atrial fibrillation and thromboembolism and the total burden of paroxysmal atrial fibrillation and thromboembolic risk. The data gleaned from these devices provides insight and raises questions regarding the underlying mechanism of thromboembolism in atrial fibrillation, and in doing so, exposes shortcomings in the present clinical use of current risk scoring systems, specifically, the inability to account for atrial fibrillation burden and to apply scores at all in subclinical atrial fibrillation.
ISSN:0920-3206
1573-7241
DOI:10.1007/s10557-018-06849-7