The estimate of the likelihood of stroke over one year will depend upon the patient's risk factors. Risk factors for stroke in atrial fibrillation include: Age, hypertension (HTN), diabetes (DM), congestive heart failure (CHF), prior stroke (CVA), transient ischaemia attack (TIA), peripheral embolism (TE), gender and the presence of vascular disease. The most popular risk scoring system is the CHADS2 Index.
Newer studies have shown improved risk prediction by incorporating age stratification, female gender and presence of vascular disease.
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