Is a 12mm atrial septal defect serious?

Written by Li Hai Wen
Cardiology
Updated on September 04, 2024
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Atrial septal defect (ASD) is a fairly common congenital heart disease in pediatric cardiology. For infants and young children, atrial septal defects can be categorized based on their size into three types: A large atrial septal defect typically refers to a defect larger than 10 millimeters. A medium atrial septal defect generally refers to a defect that ranges from 5 to 10 millimeters. A small atrial septal defect usually refers to a defect that is less than 5 millimeters. Therefore, for an infant or young child, an atrial septal defect measuring 12 millimeters would indeed be considered quite severe.

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Written by Li Hai Wen
Cardiology
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Can someone with an atrial septal defect go swimming?

Atrial septal defect is not uncommon in our daily lives. Many patients with atrial septal defects often ask their doctor if they can swim. This has to be analyzed based on specific circumstances. If the atrial septal defect is not severe, and it's just a minor atrial septal defect, generally it does not affect the patient's daily activities, such as swimming or running. However, if the atrial septal defect is severe, especially if it has led to heart failure and heart enlargement, in this situation, one should definitely not engage in strenuous activities such as swimming or running.

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Written by Li Hai Wen
Cardiology
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Can atrial septal defect heal by itself?

Atrial septal defect is a relatively common congenital heart disease in infants and toddlers. It is indeed possible for a child's atrial septal defect to close on its own. Some atrial septal defects can close as the child grows. Depending on the severity, atrial septal defects can be categorized into small defects. Generally, if the defect is less than 5 millimeters, it is possible for the defect to close as the child develops. If it has not closed by the age of two, it generally will not close on its own thereafter.

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Written by Tang Li
Cardiology
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Do infant atrial septal defects heal by themselves?

Atrial septal defect is a common congenital heart disease, accounting for about 1/1500 of newborns, and is most commonly found in infants and children. The impact of atrial septal defects on hemodynamics mainly depends on the amount of shunting. Some studies confirm that atrial septal defects smaller than six millimeters can close on their own without external intervention. Therefore, when an atrial septal defect is discovered, it is necessary to regularly recheck the cardiac echocardiography to determine the size of the defect. If the atrial septal defect decreases in size as the patient ages, there is a possibility of self-healing. If the area of the patient's atrial septal defect does not change or gradually increases, regular echocardiography rechecks are needed, and cardiac catheterization may be performed if necessary.

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Written by Tang Li
Cardiology
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Can medication be taken for atrial septal defect?

Patients with small atrial septal defects and no related symptoms, pulmonary hypertension, or ventricular enlargement generally do not need specific medication. If symptoms do occur, interventional or surgical treatment should be chosen. Medication is necessary only if there is accompanying heart failure, pulmonary infection, or arrhythmias such as atrial fibrillation. In the case of infections like pneumonia or infective endocarditis, appropriate antibiotics or antiviral medications should be actively used. When heart failure occurs, medications to control arrhythmias, such as vasodilators, diuretics, and agents to control ventricular rate, are required.

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Written by Tang Li
Cardiology
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How to treat atrial septal defect

Typical cardiac murmur ECG and X-ray findings may suggest the presence of an atrial septal defect. An echocardiogram can confirm the diagnosis, and it should be differentiated from conditions such as anomalous pulmonary venous return, pulmonary valve stenosis, and small ventricular septal defects. For the treatment of atrial septal defects, in adult patients, if echocardiographic evidence of increased right ventricular volume load is present, the defect should be closed as soon as possible. Treatment options include interventional and open-heart surgical procedures. Before the implementation of interventional surgeries, all cases of simple atrial septal defects that have caused hemodynamic changes, with signs of increased pulmonary blood flow, enlargement of the atria and ventricles, and corresponding ECG findings, should undergo surgical treatment. In older patients with severe pulmonary hypertension, surgical treatment should be approached with caution.