Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria of the heart chamber. Normally, the artria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent then oxygen rich blood can flow directly from the left side of the heart to mix with the blood deficient in oxygen in the right side of the heart.
Atrial septal defect is one of the most common congenital cardiac diseases and usually affects women more than the men. It is characterized by a hole or defect in the interatrial septum that separates the heart’s two chambers (upper).
The opening in the septum usually closes when the baby is born; but in few cases if the opening does not close, the hole is referred to as atrial septal defect. Huge and long term atrial septal defects may lead to serious heart and lung damage.
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This can lead to lower than normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. The ASD may not produce noticeable signs especially if the defect is small. During development of the fetus, the interatrial septum develops to separate the left and right atria.
The hole in the septum is called as a foremen ovale or foremen septum. It allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from placenta.
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Increasing disposable income of the Asian population would boost or increase the growth of arterial septal defect market in the years to come. Atrial Septal Defect Market size By Symptoms: Difficulty in breathing (dyspnea), frequent respiratory infections, swelling of legs and feet, Heart palpitations, Fatigue.
Atrial Septal Defect Market size By Diagnosis:
Electrocardiogram (ECG): ECG records the electrical activity of an individual and indentifies heart problems. Chest X-ray: with the help of chest X-ray, condition of the heart and lungs are detected. Cardiac Catherization: In this diagnosis test, a catheter is inserted into the heart via vein and any congenital heart defects can be diagnosed including amount of oxygen in the blood. Transesophageal echocardiography (TEE): The test provides an ultrasound image to provide a clear image of the atria.
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