Will babies with atrial septal defects develop slowly?

Written by Tong Peng

Pediatrics

Updated on February 14, 2025

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Babies with atrial septal defects do not necessarily develop more slowly. An atrial septal defect is one of the congenital heart diseases. If the diameter of the defect is relatively small, it will not affect the normal blood flow of the heart, the oxygen supply to the body, or significantly impact daily activities like sleeping or exercising for the baby. The growth and development of the baby would be normal, with no abnormalities compared to their peers. However, if the diameter of the atrial septal defect is relatively large, typically exceeding 6-8 millimeters, it can cause the baby to experience a lack of oxygen during physical activities, leading to a compromised quality of life and potentially causing delayed development.

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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 Li Hai Wen

Cardiology

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Is a 12mm atrial septal defect serious?

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 Cai Li E

Cardiology

1min 38sec

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Atrial septal defect can cause which complications?

Small atrial septal defects generally are asymptomatic, whereas medium to large atrial septal defects may result in pulmonary hypertension and right heart failure. The impact of an atrial septal defect on hemodynamics mainly depends on the amount of shunting, which in turn is determined by the size of the defect. It also relates to the compliance of the left and right ventricles and the relative resistance of the systemic and pulmonary circulation. Continued increase in pulmonary blood flow leads to pulmonary congestion, increasing right heart volume load. Pulmonary vascular compliance decreases, evolving from functional to organic pulmonary hypertension. This in turn continuously increases right heart system pressure until it surpasses the pressure of the left heart system, causing the original left-to-right shunt to reverse to a right-to-left shunt, leading to cyanosis. Atrial septal defects are generally asymptomatic but with the progression of the condition, symptoms such as exertional dyspnea, arrhythmias, and right heart failure may occur. In the advanced stages, about 15% of patients with severe pulmonary hypertension exhibit a right-to-left shunt and cyanosis, leading to the formation of Eisenmenger syndrome.

home-news-image

Written by Tong Peng

Pediatrics

46sec

home-news-image

Will babies with atrial septal defects develop slowly?

Babies with atrial septal defects do not necessarily develop more slowly. An atrial septal defect is one of the congenital heart diseases. If the diameter of the defect is relatively small, it will not affect the normal blood flow of the heart, the oxygen supply to the body, or significantly impact daily activities like sleeping or exercising for the baby. The growth and development of the baby would be normal, with no abnormalities compared to their peers. However, if the diameter of the atrial septal defect is relatively large, typically exceeding 6-8 millimeters, it can cause the baby to experience a lack of oxygen during physical activities, leading to a compromised quality of life and potentially causing delayed development.

home-news-image

Written by Di Zhi Yong

Cardiology

44sec

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What should be paid attention to daily with an atrial septal defect?

If the patient has an atrial septal defect, it is advised that the patient should adhere to a light diet and regularly visit the hospital for electrocardiogram and echocardiography checks. If the defect is relatively large, I personally recommend surgical treatment for the patient, as it can effectively alleviate the current condition. After all, while drug treatment has some effect, there is a risk of recurrence. Surgery can permanently treat atrial septal defects and improve the patient’s symptoms. If the patient experiences difficulty breathing, this needs to be addressed. Additionally, it is important to keep warm, avoid catching cold, and monitor changes in the patient’s heart rate, blood pressure, and pulse.