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.