In patients with atrioventricular septal defect (AVSD), the occurrence of nonsurgical AV block has been reported. We have looked for an explanation in the development of the AV conduction system.

An atrial septal defect is an opening or hole in the wall that sits between the heart’s two upper chambers. The heart’s upper chambers are called the right and left atria. Some people refer to atrial ...

Beijing Zhongke Journal Publising Co. Ltd. Congenital heart defects (CHDs) are the most common birth defects, occurring in approximately 0.9% of live births. Sadly, they are also the leading cause of ...

An atrial septal defect is the persistence of a hole (the foramen ovale) in the wall (septum) between the right atrium and left atrium of the heart. The foramen ovale usually closes spontaneously ...

The septum of the heart is a wall of tissue that separates the left and right sides of the heart and enables blood to flow as it should. It consists of the atrial septum and the ventricular septum.

When expectant parents imagine their baby’s beating heart, few consider the possibility of a structural issue being present from day one. Yet for thousands of families each year, this becomes reality ...

PULMONARY hypertension is a serious and relatively frequent complication of the ostiumsecundum type of defect of the atrial septum. 1–4 It increases the symptoms and disability of cardio-respiratory ...

The interventricular septum separates the heart’s two ventricles and plays a vital role in maintaining correct bloodflow. Sometimes a defect can occur or be present from birth. This can increase the ...