BACKGROUND:Focal atrial fibrillation(FAF) is initiated by the ectopic beats originating within or at the ostium of the pulmonary veins(PV).
BACKGROUND:Focal atrial fibrillation(FAF) is initiated by the ectopic beats originating within or at the ostium of the pulmonary veins(PV).
局灶性心房颤动是一种特殊类型的房颤，局灶性房颤发生的关键部位以左房的肺静脉口及入口内1—4mm处发生率最高，占90％以上。