Atrioventricular septal defect is a developmental irregularity in which a hole connects two or more chambers in your child’s heart. This hole may connect the top two, the bottom two, or all four ...

The genetic etiology of atrioventricular septal defect (AVSD) is unknown in 40% cases. Conventional sequencing and arrays have identified the etiology in only a minority of nonsyndromic individuals ...

During repair of atrioventricular septal defect (AVSD), surgeons may leave an atrial level shunt when they have concerns about postoperative pulmonary hypertension, a hypoplastic right ventricle (RV), ...

The goal of this study was to identify the contribution of large copy-number variants to Down syndrome–associated atrioventricular septal defects, the risk for which in the trisomic population is ...

The largest genetic study of congenital heart defects in individuals with Down syndrome found a connection to rare, large genetic deletions affecting cilia, scientists report. The high risk for ...

The most commonly seen defects at birth are congenital heart defects (CHD). These anomalies arise when there is a failure of the heart or its major blood vessels to form properly during embryonic ...

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.

This paper presents serial cardiac-catheterization data showing spontaneous functional closure of large symptomatic defects in 3 infants. One had an associated moderate-sized patent ductus arteriosus ...

An ostium primum atrial septal defect (ASD) occurs when then atrial septum near the atrioventricular valves has a communication between the two atrium causing a left to right shunt. This rarely ...

An atrioventricular septal defect (AVSD) is a condition in which there is a hole between the chambers of the left and right sides of the heart. Additionally, the valves between the chambers may not ...

An atrioventricular canal is a congenital heart defect that connects chambers of your child’s heart that shouldn’t be connected. Atrioventricular canals usually require surgical treatment. It usually ...