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As a general statistic, the presence of AFib increases the risk of stroke about 5-fold. As shown in the Figure, however, this depends again on the age of the patients. On the left side of the Figure it can be seen that of all strokes, approximately 15% are associated with AFib[122]; on the right, the chart shows that in patients who are aged >80 years, 36% of strokes are related to AFib.[123]
French WJ. Am J Med 2013; 126: 00-00.
[122] Fuster V, Rydén LE, Cannom DS, et al. 2011 ACCF/AHA/HRS Focused updates incorporated into the ACC/AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines Developed in partnership with the European Society of Cardiology and in collaboration with the European Heart Rhythm Association and the Heart Rhythm Society. J Am Coll Cardiol. 2011;57:e101-e198.
[123] Go AS, Hylek EM, Phillips KA, Chang Y, Henault LE, Selby JV, Singer DE. Prevalence of diagnosed atrial fibrillation in adults: national implications for rhythm management and stroke prevention: the AnTicoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study. JAMA. 2001;285:2370-2375.