Understanding congenital heart disease requires understanding how the maternal heart is and works. At birth, the heart uses the lungs to oxygenate its blood but does not take blood from the lungs while it is in the womb. At this time, the heart uses the placenta of the mother’s womb for oxygen. This is why the fetal heart transplants are slightly different from birth. Two specialized blood vessels, Ductus venus, also have Ductus arteriosus and a small hole in the wall between the two atrium, called the foramen ovale. The blood circulation of the fetal heart works through this special vascular and foramen oval. This blood vessel and pore are closed automatically within a few hours, starting from a few hours after birth. The right and left sides of the heart are completely separated from one to the other, and the lungs begin to function immediately after birth. The body uses the lungs to take in oxygen and release it. When the maternal heart begins to return to normal after birth – it can cause an outbreak and the blood vessels may not close.
Down-Womb Syndrome is one of the most common genetic abnormalities in children with heart disease during heart formation. Atypical septal defect and ventricular septal defect may be due to abnormalities. If this is defective, the blood on the left side of the heart enters the right side when the heart is compressed. Other genetic abnormalities that cause heart disease are bicuspid aorta and valves, coarctation of aorta and pulmonary stenosis. Many more abnormalities may occur in the construction of the fetal heart as the process continues. Among them are Felton Tetralogy, the head of the Transposition of Greatvessels of Greatvessels.
If this is defective, the blood on the left side of the heart enters the right side when the heart is compressed