Diagnosis and treatment of congenital heart diseases, including surgical treatment of common congenital heart diseases such as ventricular septal defect and atrial septal defect

Surgical treatment of congenital complex cardiac malformations in neonates and infants, such as complete dislocation of the great artery, double outlet of the right ventricle, complete endocardial cushion defect, ectopic drainage of the pulmonary veins, tetralogy of Fallot, and tricuspid valve malformation

Surgical treatment of general chest diseases in children such as chest wall deformity, lung cyst, esophageal hiatal hernia