Is erytroblastosis fetalis a congenital cardiovascular disease?

No, erytroblastosis fetalis is not a congenital cardiovascular disease. It is a condition that affects the fetus and newborn and is caused by the incompatibility between the mother's and the fetus's blood types. It is a hemolytic disease that occurs when the mother's immune system attacks the fetus's red blood cells, leading to anemia and other complications. Erytroblastosis fetalis is not primarily a cardiovascular disease, but it can lead to complications that affect the cardiovascular system, such as heart failure and pulmonary hypertension.