LA87.40
category
Atrioventricular septal defect with communication at the atrial level only
Definition
A congenital cardiac malformation that is a variant of an atrioventricular septal defect (atrioventricular canal defect) with an interatrial communication just above the atrioventricular valve, no interventricular communication just below the atrioventricular valve, separate right and left atrioventricular valvar orifices, and varying degrees of malformation of the left sided component of the common atrioventricular valve. Additional information: the bridging leaflets of the common atrioventricular valve are bound down to the crest of the scooped out ventricular septum so that the potential for shunting through the atrioventricular septal defect is possible only at the atrial level and not at the ventricular level.
Also indexed as
Atrioventricular septal defect with communication at the atrial level onlyatrial septum primum defectatrioventricular defect with atrial shunting onlyincomplete atrioventricular canal defect with isolated atrial componentincomplete atrioventricular septal defect with isolated atrial componentostium primum atrial septal defectpartial atrioventricular canal defectpartial atrioventricular canal defect with isolated atrial componentpartial atrioventricular septal defectpartial atrioventricular septal defect, ostium primum typeprimum atrial septal defect
Nearby in Common atrioventricular junction with atrioventricular septal defect
LA87.41Atrioventricular septal defect with communication at the ventricular level onlyLA87.42Atrioventricular septal defect with communication at atrial level and restrictive communication at ventricular levelLA87.43Atrioventricular septal defect with communication at atrial level and unrestrictive communication at ventricular levelLA87.44Atrioventricular septal defect with ventricular imbalanceLA87.45Atrioventricular septal defect and tetralogy of Fallot4B4YOther specified diseases of the immune system4B4ZDiseases of the immune system, unspecified