Saturday, June 10, 2023
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Professor of Cardiovascular Medicine, University of Birmingham, Birmingham, United Kingdom; Director, Haemostasis Thrombosis & Vascular Biology Unit, Centre for Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom
Scientific Director, MedscapeCME
This activity is intended for healthcare professionals, including cardiologists, internists, electrophysiologists, family physicians, and pharmacists involved in the treatment and management of patients with or at risk for atrial fibrillation.
The goal of this activity is to educate clinicians on recently published data and strategies to reduce hospitalizations for patients with atrial fibrillation.
Upon completion of this activity, participants will be able to:
As an organization accredited by the ACCME, MedscapeCME requires everyone who is in a position to control the content of an education activity to disclose all relevant financial relationships with any commercial interest. The ACCME defines "relevant financial relationships" as financial relationships in any amount, occurring within the past 12 months, including financial relationships of a spouse or life partner, that could create a conflict of interest.
MedscapeCME encourages Authors to identify investigational products or off-label uses of products regulated by the US Food and Drug Administration, at first mention and where appropriate in the content.
Professor of Cardiovascular Medicine, University of Birmingham, Birmingham, United Kingdom; Director, Haemostasis Thrombosis & Vascular Biology Unit, Centre for Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom
Scientific Director, MedscapeCME
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CME/CE Released: 9/22/2009
Valid for credit through: 9/22/2010
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Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. It is associated with substantial morbidity and mortality, owing to a significantly increased risk for stroke, thromboembolic events, heart failure (HF), impaired cognitive function, as well as an impaired quality of life.[1-6] According to data from the Framingham study, the lifetime risk of developing AF is approximately 1 in 4 for white men and women aged 40 years and older.[7] Although more common in individuals with underlying structural heart disease, the lifetime risk for AF remains high (1 in 6) even in individuals without prior congestive heart failure (CHF) or myocardial infarction (MI).[7] The risk for AF increases with age; the vast majority of individuals with AF (approximately 70%) are between the ages of 65 and 85 years. Although the age-adjusted prevalence of AF is higher in men than in women,[8] approximately 60% of the patients with AF who are older than 75 years of age are women, accounting for the greater longevity of women.[5]
The prevalence and incidence of AF have increased considerably over the past 2 decades, especially in North America and Western Europe.[9] According to a study that assessed community-based trends in AF incidence, the incidence of AF grew 12.1% between 1980 and 2000.[10] Assuming the increased age-adjusted trends prevail, the authors estimated that the prevalence of AF in the United States could reach as high as 15.9 million by 2050.[10]
This study and others attribute the increased prevalence of AF to the advancing age of the population, improved survival from MI and CHF, as well as to greater awareness by clinicians (and, in turn, more diagnoses).[9-11] In addition, the number of patients with new-onset AF has also steadily risen, independent of the increasing prevalence of known AF risk factors.[5]
In parallel with a growing incidence and prevalence of AF is the rate of hospitalizations for patients with AF. AF is the most common arrhythmia, with more than 461,000 hospital discharges annually.[12] A study of hospitalized Medicare patients also found that the costs of hospitalization for AF as a comorbidity are significantly higher in patients admitted without AF of the same age and sex.[13] Overall, prevention of AF and treatment of patients with AF and other associated cardiovascular comorbidities may help reduce the significant burden associated with AF.
To better understand the burden of AF and the need for increased awareness and prevention programs, the following review discusses factors and conditions known to increase the risk for AF, the influence of AF on outcomes in patients with other comorbidities, particularly stroke, and new data suggesting that secondary prevention of AF may reduce morbidity and mortality associated with the arrhythmia.
