There are two main types of congenital heart disease

Congenital heart disease (CHD) can be divided into cyanotic congenital heart disease and non-cyanotic congenital heart disease two categories. Located in the heart of the left chest.heart like the same from top to bottom four rooms, upstairs into the right atrium, left ventricle, between about separating between the atrium and ventricle valve separated. Right atrium, right ventricle receive systemic venous drainage of blood oxygen content is low blood purple, purple blood (blood) into the lungs, carbon dioxide from the breathing, inhaling oxygen, the oxygen content of the low oxygen content of purple high blood into the blood (blood), after lung static veins return to the left atrium and left, Choi arrived at by the whole body of aortic artery, cycle. Blood circulation to maintain a human's life. Fetal growth in the literacy process, by the external factors (such as mothers infected with the virus) will take place some structural heart defect or deformity, in favor of blood flow changes such as the atrium and ventricle, or hole between the great vessels or small tubes in the same drive will be mutual mixed venous blood. Under normal circumstances, arterial blood pressure than high blood pressure, arterial blood pressure compared to the calm of high blood pressure, arterial blood to blood streaming, and not performance cyanosis, such as atrial or ventricular septal defects, patent ductus arteriosus, and so on. But the disease develops to a certain extent, more than arterial pressure venous pressure, there will be bruising, so that this type of congenital heart disease that potential cyanotic. If the direction of blood flow to the artery appeared in a table such as the purple of tetralogy of Fallot (four malformation: pulmonary stenosis, high ventricular septal defect, aortic cross-right and right ventricular hypertrophy), pulmonary stenosis, reducing blood into the lungs, making oxygenated blood into the low oxygen high blood reduction, as aortic cross-Left ventricular riding, and about mixed blood Room at the same time enter the purple blood more palladium, cyanosis more obvious. Medically these cyanotic congenital heart disease known as congenital heart disease. The other is two blood mixed with the (of heart, pulmonary stenosis, etc.), such as the non-cyanotic.