Congenital Heart Disease

Congenital heart diseases affect any part of the heart such as heart muscle, valves, and blood vessels. Congenital heart disease refers to a problem with the heart's structure and function due to abnormal heart development before birth.Every year over 30,000 babies are born with some type of congenital heart defect in US alone. Congenital heart disease is responsible for more deaths in the first year of life than any other birth defects. Some congenital heart diseases can be treated with medication alone, while others require one or more surgeries.
The causes of congenital heart diseases of newborns at birth may be in result from poorly controlled blood sugar levels in women having diabetes during pregnancy, some hereditary factors that play a role in congenital heart disease, excessive intake of alcohol and side affects of some drugs during pregnancy.
Congenital heart disease is often divided into two types: cyanotic which is caused by a lack of oxygen and non-cyanotic.

1. CyanoticCyanosis is a blue coloration of the skin due to a lack of oxygen generated in blood vessels near the skin surface. It occurs when the oxygen level in the arterial blood falls below 85-90%.
The below lists are the most common of cyanotic congenital heart diseases:
a)Tetralogy of fallot
Tetralogy of fallot is a condition of several congenital defects that occur when the heart does not develop normally. It is the most common cynaotic heart defect and a common cause of blue baby syndrome.

b)Transportation of the great vessels
Transportation of the great vessels is the most common cyanotic congenital heart disease. Transposition of the great vessels is a congenital heart defect in which the 2 major vessels that carry blood away from the aorta and the pulmonary artery of the heart are switched. Symptoms of transportation of the great vessels include blueness of the skin, shortness of breath and poor feeding.

c)Tricuspid atresia
In tricuspid atresia there is no tricuspid valve so no blood can flow from the right atrium to the right ventricle. Symptoms of tricuspid atresia include blue tinge to the skin and lips, shortness of breath, slow growth and poor feeding.

d)Total anomalous pulmonary venous return
Total anomalous pulmonary venous return (TAPVR) is a rare congenital heart defect that causes cyanosis or blueness. Symptoms of total anomalous pulmonary venous return include poor feeding, poor growth, respiratory infections and blue skin.

e)Truncus arteriosus
Truncus arteriosus is characterized by a large ventricular septal defect over which a large, single great vessel arises. Symptoms of truncus arteriosus include blue coloring of the skin, poor feeding, poor growth and shortness of breath.
There are many more types of cyanotic such as ebstein's anomaly, hypoplastic right heart, and hypoplastic left heart. If you need more information please consult with your doctor.


2. Non-cyanoticNon-cyanotic heart defects are more common because of higher survival rates.
The below lists are the most common of non-cyanotic congenital heart diseases:
a)Ventricular septal defect
Ventricular septal defect is a hole in the wall between the right and left ventricles of the heart causing right and left ventricles to work harder, pumping a greater volume of blood than they normally would in result of failure of the left ventricle. Symptoms of ventricular septal defect include very fast heartbeats, sweating, poor feeding, poor weight gain and pallor.

b)Atrial septal defect
Atrial septal defect is a hole in the wall between the two upper chambers of your heart causing freshly oxygenated blood to flow from the left upper chamber of the heart into the right upper chamber of the heart. Symptoms of atrial septal defect include shortness of breath, fatigue and heart palpitations or skipped beats.


c)Coarctation of aorta
Coarctation of aorta is a narrowing of the aorta between the upper-body artery branches and the branches to the lower body causing your heart to pump harder to force blood through the narrow part of your aorta. Symptoms of coarctation of aorta include pale skin, shortness of breath and heavy sweating.

There are many more types of non-cyanotic such as pulmonic stenosis, patent ductus arteriorus, and atrioventricular cana. These problems may occur alone or together. Most congenital heart diseases occur as an isolated defect and is not associated with other diseases.

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