Is a ventricular septal defect with pulmonary hypertension mild or severe?

Written by Xie Zhi Hong
Cardiology
Updated on May 20, 2025
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The most common complication of atrial septal defect is pulmonary hypertension, which can be classified as mild, moderate, or severe. Generally, mild pulmonary hypertension is not a major issue and is not considered very serious. However, moderate to severe pulmonary hypertension often accompanies repeated coughing, shortness of breath after exercise, or difficulty breathing. This situation is relatively serious and it is advisable to undergo surgery as soon as possible. If the condition reaches a severe stage, pulmonary hypertension could continuously increase. Furthermore, in patients with severe pulmonary hypertension, closing the atrial septum can lead to severe breathing difficulties and increased shortness of breath. Therefore, it is crucial to closely monitor patients with pulmonary hypertension.

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Written by Tang Li
Cardiology
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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.

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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 Li Hai Wen
Cardiology
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Can someone with atrial septal defect travel by airplane?

Atrial septal defect is a relatively common congenital heart disease in daily life. Many patients with atrial septal defect often ask if they can fly on planes. This depends on the specific condition. If the atrial septal defect is combined with severe cardiac damage, such as heart failure, then flying is definitely not allowed. However, if the atrial septal defect is mild, not severe, without clinical symptoms or cardiac damage, then it is indeed possible to fly. It is recommended for those in this condition to visit a cardiology outpatient clinic at a hospital and ask a doctor to make an assessment.

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Written by Di Zhi Yong
Cardiology
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Can atrial septal defect of the patent foramen ovale type heal itself?

This disease is a congenital heart disease, and it is recommended that the patient undergo a cardiac echocardiography. If symptoms such as palpitations and chest tightness occur, and distinct murmurs can be heard in the precordial area, surgical treatment is sometimes advised. After all, an atrial septal defect can lead to certain conditions, especially in children who are prone to pediatric pneumonia or bronchitis, which can affect their growth and development. Currently, surgical treatment is the main approach. If the issue is not very serious, the defect might heal on its own as the child grows, but this possibility is relatively small. In most cases, surgery is recommended.

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Written by Di Zhi Yong
Cardiology
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What should I do if a ventricular septal defect causes feeding difficulties?

If the patient has a ventricular septal defect, it is still recommended that the patient seek hospital treatment. A murmur can be heard in the precordial area, and it is also advisable for the patient to undergo an echocardiogram to check if the defect is too large. If there is difficulty feeding during breastfeeding, it is personally advised not to breastfeed. Formula can be used instead, because if heart failure is not handled in a timely manner, it may sometimes worsen the symptoms. Since this is a congenital heart disease, the current treatment is primarily surgical. Medical treatment in internal medicine is not very effective and is prone to recurrence. During this period, it is also important to monitor changes in the patient's heart rate, blood pressure, and pulse. If there is an accelerated heart rate or increased blood pressure, these need to be addressed.