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    Causes of atrial septal defect

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    Causes of atrial septal defect
    The diseases that occur around the child in life are particularly large. Atrial septal defect is one of them. Atrial septal defect is a common clinical congenital heart malformation. It is the abnormality of the original atrial septum during embryonic development, resulting in left and right atriums. The pores remain. Atrial septal defect can occur alone, can also coexist with other types of cardiovascular malformations, more common in women, male to female ratio of about 1:3. When the child needs to be treated after illness, there are many reasons for the disease. We need to understand the relevant knowledge, so that we can easily deal with the emergence of the disease. Let's take a look at the cause of the disease:

    The cause of atrial septal defect is more, and the reason for different people to induce a fly is different. Some people conducted simple research in this area, and found that the different groups of people living in the environment are also different from the probability of atrial septal defect induced. This shows that the occurrence of this disease is more diverse.

    The septal defect is the most common congenital heart disease that accounts for about 10 to 15% of the congenital heart disease ratio of 1:2 for men and women.

    Secondary pore atrial septal defect due to the presence of a pressure gradient between the normal left and right atria. Oxygenated blood in the left atrium can be shunted to the right aortic circulation. Reduced blood flow can cause growth retardation in children with limited physical activity. Some patients may also have no Obvious symptoms of oxygenated blood into the pulmonary circulation can cause pulmonary vascular intimal hyperplasia and mid-level hypertrophy and other diseases lead to increased pulmonary arterial pressure and pulmonary vascular resistance but the process is more slowly appear in adult patients.

    Primary septal atrial septal defect, also known as partial endocardial cushion defect or atrioventricular tube malformation, results in the development of a defect in the inner membrane pad during embryonic development. A large semilunar atrial septal defect is located in the anterior inferior defect of the coronary sinus. The lower edge of the mitral annulus is often accompanied by mitral valve valvuloplasty.
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