Chapter 17 - Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)»Congenital malformations of the circulatory system (Q20-Q28)»Atrioventricular septal defect (Q21.2)
Q21.2
Atrioventricular septal defect
Related indications (MeSH) (1)
Endocardial Cushion Defects6 drugs (4 approved, 2 experimental)
A spectrum of septal defects involving the ATRIAL SEPTUM; VENTRICULAR SEPTUM; and the atrioventricular valves (TRICUSPID VALVE; BICUSPID VALVE). These defects are due to incomplete growth and fusion of the ENDOCARDIAL CUSHIONS which are important in the formation of two atrioventricular canals, site of future atrioventricular valves.