Coarctation of the aorta(CoA)refers to the congenital coarctation near the isthmus,ductus arteriosus or ligamentum arteriosus,with an incidence of 5%–10%in chi
Atrial fibrillation(AF)is the most common arrhythmia in the elderly and its incidence increases with aging.[1]Electrical cardioversion is used as a strategy for