Can someone with an atrial septal defect go swimming?

Written by Li Hai Wen

Cardiology

Updated on September 28, 2024

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Atrial septal defect is not uncommon in our daily lives. Many patients with atrial septal defects often ask their doctor if they can swim. This has to be analyzed based on specific circumstances. If the atrial septal defect is not severe, and it's just a minor atrial septal defect, generally it does not affect the patient's daily activities, such as swimming or running. However, if the atrial septal defect is severe, especially if it has led to heart failure and heart enlargement, in this situation, one should definitely not engage in strenuous activities such as swimming or running.

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Written by Tang Li

Cardiology

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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 Zhang Zhi Gong

Cardiothoracic Surgery

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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.

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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.

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Written by Tang Li

Cardiology

56sec

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Imaging manifestations of atrial septal defect

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

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Do infant atrial septal defects heal by themselves?

Atrial septal defect is a common congenital heart disease, accounting for about 1/1500 of newborns, and is most commonly found in infants and children. The impact of atrial septal defects on hemodynamics mainly depends on the amount of shunting. Some studies confirm that atrial septal defects smaller than six millimeters can close on their own without external intervention. Therefore, when an atrial septal defect is discovered, it is necessary to regularly recheck the cardiac echocardiography to determine the size of the defect. If the atrial septal defect decreases in size as the patient ages, there is a possibility of self-healing. If the area of the patient's atrial septal defect does not change or gradually increases, regular echocardiography rechecks are needed, and cardiac catheterization may be performed if necessary.