Patient: Description of the condition (time of onset, main symptoms, hospital visited, etc.): My daughter was born 57 days ago and had an ultrasound that said: the heart was in normal position and connections. The internal diameter of all chambers of the heart is normal, and an echogenic defect of about 5 mm in diameter is seen in the middle of the atrial septum, where CFI is seen in the left-to-right shunt at the atrial level. The septal echogenicity was continuous, the aorta and pulmonary artery were not widened, and the morphology and echogenicity of all heart valves were normal. No shunts were detected at the ventricular level or at the level of the great vessels, and no regurgitation was detected in the valves. The pediatrician said that this ultrasound, which shows a very bad situation, is more serious. I would like to ask, is this a heart leak disease? Is it possible for a child’s heart to heal naturally? Is there a good chance of success if surgery is done? How much does the surgery cost? How old can a child be for surgery? The majority of children with this condition are asymptomatic for life and do not require treatment. If the child has recurrent pneumonia, access therapy can be considered at the age of 2-3 years. Basically, no treatment is needed.