Patient: Cardiac ultrasound: 1. enlarged right heart and small left heart; 2. normal aortic internal diameter and widened pulmonary artery internal diameter; 3. normal ventricular wall thickness and flattened septal motion; 4. normal septal continuity and 5.5 mm mid-upper septal defect, as seen in open arterial duct; 5. no abnormalities in the morphology and activity of the valves; 6. no stenosis or dilatation of the left aortic arch, aortic arch and descending aorta; 7. 7. The pulmonary vein was not connected to the left atrium, and a common venous trunk was formed behind the left atrium with an internal diameter of 6.2 mm, which converged into the superior vena cava into the right atrium via the vertical vein; 8. CDFI+CW: a right-to-left dominant shunt was seen at the atrial level: regurgitation was seen at the tricuspid orifice. Because the child was too small and physically weak, the doctor recommended discharge from the hospital, and he was discharged in an improved condition. Can the child get the hepatitis B vaccine now? Doctor: Generally speaking, if the diagnosis is clear that complete pulmonary venous ectopic drainage (supracardiac type) is present, then early surgery should be performed, and some children even need emergency surgery, because this type of disease often results in severe heart failure depending on the degree, and in severe cases the child’s life can even be at risk. Therefore, we recommend that you bring your child to our hospital. As for whether vaccination can be given, it depends on the child’s general condition and heart function. Even if the child is not suitable for vaccination now, the child can be vaccinated after the heart disease is cured.