Echocardiography is the most frequently used imaging modality to determine cardiac function.Left ventricular ejection fraction the most widely used parameter fo
Introduction Myocardial ischemia and angina pectoris can be caused by various mechanisms such as coronary atherosclerosis,vasospasm or coronary microvascular dy
Background:The hospitalization burden of congenital heart disease(CHD)at the national or regional level in China remains unknown.We aimed to evaluate the recent
Iatrogenic aortocoronary dissection(IACD)is a rare but potentially life-threatening complication during coronary catheterizations.Although the incidence was rel