Does a ventricular septal defect affect development?

Written by Zhang Zhi Gong
Cardiothoracic Surgery
Updated on September 03, 2024
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Does a ventricular septal defect affect development? For relatively small ventricular septal defects, such as those under five millimeters, the shunt from the left ventricle to the right ventricle is minimal, hence patients may not exhibit noticeable symptoms. However, if the defect is larger, for instance, over five millimeters, a large volume of blood will flow from the left ventricle into the right ventricular system. This causes congestion in the right ventricular system and the pulmonary circulation will be flooded with blood. As the saying goes, "flowing water does not rot, nor do door hinges become worm-eaten"; however, when a large amount of blood accumulates in the pulmonary vessels, patients are prone to recurrent respiratory infections and even congestive right heart failure, which then leads to feeding difficulties. Patients feel consistently uncomfortable and have difficulty breathing, so they may be reluctant to eat, especially in young children who need considerable effort to drink milk, which requires some breath-holding. At this time, patients experience feeding difficulties, which equates to developmental delays. Therefore, larger ventricular septal defects can affect a child's development. Small defects, such as those under three millimeters, might not affect development, but larger defects do impact development and thus require timely treatment.

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Written by Xie Zhi Hong
Cardiology
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What would happen if the ventricular septal defect occluder dislodges?

An occluder generally works like two umbrella surfaces clamped over the orifice of the interventricular septal defect, achieving the method whereby tissue blood flow enters from the left side of the septum to the right side. Once an occluder dislodges, it can lead to a dangerous situation, as the occluder has a membrane that can easily get caught on the tendons of the mitral valve, causing severe mitral regurgitation; it can also get stuck at the mitral valve orifice, obstructing the outflow of blood; it may also lead to aortic valve insufficiency; if it gets caught in the major arteries, it can cause arterial embolism, leading to sudden death in the patient. Therefore, the dislodgement of an occluder is a very dangerous phenomenon.

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Written by Di Zhi Yong
Cardiology
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Can ventricular septal defect avoid amniocentesis?

Because ventricular septal defect is a type of congenital heart disease, it is recommended that patients adopt a light diet and especially avoid spicy and stimulating foods due to the condition of ventricular septal defects. It is still recommended to pursue active and early surgical treatment to improve symptoms. If there is poor cardiac function, or symptoms of palpitations and chest tightness occur, amniocentesis should not be performed as it carries certain risks. However, for milder symptoms that can be timely controlled, amniocentesis and other tests may be considered, but it is also necessary to rule out other diseases. If the patient does not have any special diseases in the past, such as coronary heart disease or diabetes, the procedure can be handled.

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Written by Di Zhi Yong
Cardiology
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Causes of hoarseness due to ventricular septal defect.

If a patient exhibits some ventricular septal defects, it is possible for hoarseness to occur, as this condition is a type of congenital heart disease. If a patient frequently experiences hoarseness, it might be caused by congenital heart disease, but chronic pharyngitis or laryngitis, which can also cause hoarseness, should not be ruled out. Additionally, conditions like vocal cord polyps or deeper diseases can lead to hoarseness. However, it is important to differentiate these from normal diseases. If the issue is solely a ventricular septal defect, surgical treatment can be recommended for the patient, which can achieve a complete cure. Attention should also be paid to maintaining a healthy diet.

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Written by Di Zhi Yong
Cardiology
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What will happen in the later stage if a ventricular septal defect is not operated on?

Because a ventricular septal defect is a type of congenital heart disease, if surgery is not performed, it can sometimes lead to ischemic and hypoxic conditions in patients. During this period, active surgical treatment is still necessary, as this disease primarily relies on surgical intervention. Medical treatment, especially drug therapy, is not very effective, so it is recommended to prioritize immediate treatment with surgical assistance. After surgery, it is still necessary to regularly check the heart with an echocardiogram, as this disease can produce murmurs in the precordial area. Patients may also experience recurring respiratory infections, especially cases of bronchitis and bronchopneumonia.

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Written by Xie Zhi Hong
Cardiology
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Is congenital heart disease with perimembranous ventricular septal defect serious?

Simple congenital heart defects, such as perimembranous defects, generally are not particularly severe. However, there are several scenarios to consider: The first scenario involves a large defect that typical occluders cannot address; in such cases, surgical intervention is required. This type of defect is generally considered severe. Another scenario is when a cardiac defect has been present for an extended period, leading to repeated shortness of breath, heart failure, cardiac enlargement, and even pulmonary arterial hypertension. This situation would be considered a severe ventricular septal defect, caused by the failure to treat the membranous part of the septal defect in time. Thus, the majority of ventricular septal defects are not very severe in the early stages. They become serious if the defect is too large or if there is coexistence with other defects, such as an overriding aorta or poorly developed pulmonary artery, among other complex congenital heart diseases. Regardless, patients with perimembranous congenital heart defects should undergo surgical treatment early to avoid missing the opportunity for surgery.