Study on effect of compound salvia pellet in preventing atrial fibrillation with left atrial thrombosis

Atrial fibrillation (AF) is a kind of common arrhythmia, which, besides affecting cardiac function, has another serious outcome, that is, it is easy to form atrial thrombosis and induce thrombus/embolus, especially cerebral embolus. The incidence of left atrial thrombosis ( L A T ) could reach 25%--30% (1) , the incidence of embolic complication per year could reach 2. 98% -6.30 %, even 20 ~ or more (2'3). To prevent thrombosis so as to lower the incidence of cerebral stroke and other embolic complications has been so far the focal point of AF treatment.