BackgroundAtrial fibrillation (AF) is one of the most common arrhythmia, the prevalence increases with age, affecting about 10% of patients older than age 80, 42%-65% of patients with rheumatic heart disease mitral stenosis.

• 心房颤动(房颤)是最常见的心律失常之一，发病率随着年龄增大而升高，80岁以上人群的发病率近10%25，伴风湿性心脏病二尖瓣狭窄时更是高达42%25-65%25。