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Ventricular septal defect
Ventricular septal defect refers to a defect in the ventricular septum, the wall dividing the left and right ventricles of the heart.
A normal human heart is divided into four chambers: the left ventricle, right ventricle, left atrium, and right atrium. The circulation in a normal person involves venous blood entering the right atrium, passing through the mitral valve into the right ventricle. The right ventricle then contracts and pumps blood into the lungs. After exchanging gases and becoming oxygenated, the blood turns bright red. It then returns to the left atrium. From the left atrium, blood passes through the mitral valve back into the left ventricle, and then the left ventricle contracts and pumps blood throughout the body. Therefore, there is a thick wall between the normal left and right ventricles, known as the ventricular septum. If due to congenital heart disease or other reasons, a small hole appears in the ventricular septum, it is called a ventricular septal defect. If this defect is large, it necessitates active surgical treatment because if the defect exists, the pressure of the blood flow in the left ventricle is higher, causing a large amount of abnormal blood to enter the right ventricle. This leads to a significant accumulation of blood in the right ventricle, causing the patient to have too much blood in the pulmonary circulation, making the patient prone to recurrent colds and infections. Furthermore, these children may easily develop heart failure and even life-threatening conditions such as infective endocarditis.
Which is more serious, patent ductus arteriosus or ventricular septal defect?
Both of these diseases are types of congenital heart disease, and if there are issues with either of them, the situation can be quite severe. There isn't a distinction between which disease is severe and which is not. If the arterial duct remains open or does not close, surgery is still required for this condition. Patients with ventricular septal defect primarily display changes related to ischemia and hypoxia, and they may also experience recurrent respiratory infections, which are quite serious. Surgery is generally the best treatment. Early surgical intervention can achieve a complete cure, but it is also advisable for the patient to have regular echocardiographic check-ups at the hospital.
The difference between ventricular septal defect and atrial septal defect
The difference between a ventricular septal defect and an atrial septal defect mainly lies in their locations. A normal heart is divided into four chambers, which are the left ventricle, right ventricle, left atrium, and right atrium. Each chamber is separated by a septum, much like walls between rooms in a house. Due to certain reasons, such as congenital heart defects, there may be openings or defects in these walls, known as septal defects. An atrial septal defect refers to a defect between the right atrium and the left atrium, whereas a ventricular septal defect pertains to a defect between the left and right ventricles. The murmur of atrial septal defects is relatively softer, as the pressure difference between the atria is smaller, and the defect is located higher up. In contrast, the murmur of ventricular septal defects is louder due to the greater pressure difference between the ventricles and is located lower down, approximately between the third and fourth ribs. The murmur of atrial septal defects is found between the second and third ribs. Moreover, since the pressure difference in ventricular septal defects is greater, the impact on the heart is relatively more significant.
What are the symptoms of ventricular septal defect?
What are the symptoms of a ventricular septal defect? In normal individuals, there are no defects between the ventricular septa. However, if there is a small ventricular septal defect, such as less than five millimeters, typically ranging between two to three millimeters, this minor defect functions like small gaps between normal windows and doors, causing minimal shunting which generally does not significantly impact the patient, resulting in no obvious symptoms. However, if the defect is relatively large, such as exceeding five millimeters, causing significant left ventricular blood to shunt to the right ventricle, it can lead to congestion in the right ventricular system or pulmonary circulation. Under such conditions, patients may frequently experience respiratory infections, congestive heart failure, or in children, reluctance to eat, presenting feeding difficulties and developmental delays. Of course, if the defect continues to enlarge, achieving a size larger than the patient's aorta, the patient may show signs of significant right heart failure due to the damaged ventricular septum, necessitating emergency surgical intervention.
What should be noted for an atrial septal defect with patent foramen ovale?
If the patient presents with a ventricular septal defect or a patent foramen ovale, it is important to maintain a healthy diet and particularly to prevent upper respiratory infections, as these conditions are types of congenital heart disease. They mainly lead to repeated respiratory infections, cyanosis, or lung infections, resulting in changes associated with congenital heart disease. For a ventricular septal defect, early surgical intervention is currently recommended. Patent foramen ovale is also treated surgically. During this period, it is important to monitor changes in the child's height and weight, as such diseases can affect the child's growth and development.
Interventricular septal defect X-ray manifestation
X-ray Manifestations of Ventricular Septal Defect. These are mainly related to the size of the defect. If the ventricular septal defect is relatively small, for example less than three millimeters, the amount of blood shunted from the left ventricle to the right ventricular system is minimal. Consequently, right ventricular congestion is not pronounced, making pulmonary congestion also less obvious. At this point, the X-ray may show no significant changes. However, if the defect is larger, greater than three millimeters, for instance five millimeters, a large volume of high-pressure blood from the left ventricle will flow excessively through the defect into the right ventricular system. This leads to significant congestion in the right ventricle and, thus, in the entire pulmonary circulation. Additionally, the X-ray will show a prominent pulmonary artery segment and increased pulmonary blood flow. Moreover, over time, this condition may lead to compensatory enlargement of the left ventricular system. On the X-ray, enlargement of both the right and left ventricles can be observed. Furthermore, due to sustained high pressure, the distal pulmonary arteries may show signs of severe pulmonary vascular disease on the X-ray, resembling a broken book. This indicates that the pulmonary circulation has reached an end-stage condition.
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.
Can an 8mm ventricular septal defect heal by itself?
The ventricular septal defect is 8 millimeters, which is considered a medium-sized defect. This type of defect is relatively large and will not heal on its own. Moreover, this ventricular septal defect requires timely surgical treatment, and close observation is needed in daily life. If the child is prone to catching colds, leading to repeated pneumonia, then prompt surgical treatment is necessary without delay. If the child's growth and development are not affected and there are no repeated incidents of pneumonia, close monitoring can be considered. Surgery to repair the ventricular septal defect can be considered after the child reaches two years of age. Otherwise, if delayed, it may lead to heart failure and complications such as pulmonary hypertension, severely affecting the quality of life and endangering the patient's safety.
Can people with ventricular septal defect swim?
If the patient has a ventricular septal defect, swimming can lead to ischemia and hypoxia, and thus, it is not advisable for the patient to swim. If symptoms such as palpitations or breathing difficulties occur, this can be very dangerous, and I would personally advise against going into the water. It is also crucial to actively treat this congenital heart disease. I suggest that the patient should undergo a cardiac echocardiography at a hospital for a clearer diagnosis. Currently, the treatment mainly focuses on symptomatic treatment, and it is recommended that the patient considers surgical options to alleviate the suffering and improve the condition. During this period, attention should also be paid to a healthy diet, especially avoiding spicy and stimulating foods.
Why does a ventricular septal defect cause respiratory infections?
Because ventricular septal defect is a type of congenital heart disease, it mainly leads to pulmonary infections in children, often causing respiratory infections. If this condition is not treated in time, it can worsen the symptoms, decrease the child's resistance, and lead to frequent respiratory diseases. Early surgical treatment is recommended to improve the child's symptoms. It is also important to monitor the child's breathing, heart rate, and pulse changes, and it is advisable to regularly revisit the hospital for an echocardiogram. Early surgical treatment is recommended as it can completely cure the disease.