Imaging manifestations of atrial septal defect

Written by Tang Li

Cardiology

Updated on September 19, 2024

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The imaging characteristics of ventricular septal defects are as follows:

1. Small defects: Normal cardiac silhouette, or left ventricular hypertrophy, with mild pulmonary congestion.

2. Medium defects: Left ventricular hypertrophy or biventricular hypertrophy, enlarged pulmonary artery segment, smaller aortic knob.

3. Large defects: Both ventricles enlarged, left atrium enlarged, prominent pulmonary artery segment, significant pulmonary congestion. When pulmonary hypertension with right-to-left shunting occurs, the pulmonary artery segment is markedly prominent, but the lung fields are clear, and the heart shadow is smaller than before.

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Written by Tang Li

Cardiology

1min 13sec

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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.

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Written by Li Hai Wen

Cardiology

39sec

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Postoperative precautions for atrial septal defect surgery

Ventricular septal defect surgery is often divided into surgical operations and interventional treatments by the Department of Internal Medicine. For interventional treatments, it is important to rest in bed for 24 hours afterwards. Also, the site of the puncture needs to be immobilized for at least eight hours, so it is important to regularly check the heart with an echocardiogram after the surgery. After surgical operations, it is important to maintain a balanced diet with easily digestible foods. Within a month after surgery, try to avoid strenuous activities, and regularly check the heart with an echocardiogram under the guidance of a doctor.

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Written by Li Hai Wen

Cardiology

32sec

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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

51sec

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Can atrial septal defect be cured?

Atrial septal defect is a common congenital heart disease. When the defect is small, some patients may heal naturally. In recent years, with the development of interventional technology for congenital heart diseases, most patients with atrial septal defects can be completely cured through interventional treatment, and some through surgical treatment. However, some patients have a large atrial septal defect with significant left-to-right shunting, leading to severe pulmonary arterial hypertension and right heart failure, which generally results in a poor prognosis. Some patients also have complications such as atrial flutter and atrial fibrillation. Certain patients may experience right heart failure due to excessive load on the right ventricle, and these patients often have a poor prognosis.

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Written by Tang Li

Cardiology

59sec

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What are the symptoms of an atrial septal defect?

Atrial septal defect is the most common congenital heart disease in adults, accounting for 20%-30% of adult congenital heart diseases, with a higher incidence in females than males, with a male to female ratio of about 1:1.5-3. There is also a familial tendency. Apart from larger defects, children with atrial septal defects generally show no symptoms. As they age, symptoms gradually appear, with exertional dyspnea being the main symptom, followed by supraventricular arrhythmias, especially atrial flutter and fibrillation, which exacerbate the symptoms. Some patients may develop right heart failure due to excessive right ventricular volume load. In the late stages, about 15% of patients develop severe pulmonary hypertension, resulting in a right-to-left shunt and cyanosis.