What is the purpose of keeping another catheter in the pulmonary artery or right ventricular outflow tract (RVOT) while taking coronary angiogram in congenital heart disease?
This is done to see if any large coronary branch is crossing the RVOT, which has implications during repair.
If a catheter passes from the right ventricle into the descending aorta, what are the possibilities?
It could be passing through a ventricular septal defect (VSD), patent ductus arteriosus (PDA) or aortopulmonary window (AP window) into the descending aorta. In VSD and AP window, the catheter will form an open loop while in PDA the catheter will form a closed loop as it crosses from the pulmonary artery into the descending aorta.
What is the commonest great artery relationship in double outlet right ventricle (DORV)?
Commonest great artery relationship in DORV is side by side.
What is Taussig Bing anomaly?
Taussig Bing anomaly is DORV with subpulmonic VSD and high pulmonary blood flow with pulmonary hypertension.