Postoperative Atrial Fibrillation

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Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia. It has become an important public health issue causing increases in health care expenditures due to the growing elderly population. The prevalence of AF (2%) is now double that reported in the last decade.1 AF is present in 0.12% to 0.16% of those younger than 49 years, in 3.7% to 4.2% of those aged 60 to 70 years, and in 10% to 17% of those aged 80 years or older and is more common in males.1 Hypertension is the most frequently associated risk factor of AF followed by heart failure.2 Other associated cardiac diseases include coronary artery disease, valvular heart disease, and various cardiomyopathies. Noncardiac risk factors include diabetes mellitus, lipid disorders, chronic obstructive pulmonary disease, renal failure, and stroke.
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