The cost of open heart surgery for mediastinal tumor is usually around $20,000-35,000. The price varies from hospital to hospital, so patients are advised to refer to the price of local hospitals. Preoperative examination for mediastinal tumor open heart includes liver and kidney function examination, coagulation function examination, cardiopulmonary function examination and so on, the cost is around 5,000 RMB, the cost of surgery including anesthesia as well as surgery is around 10,000-20,000 RMB, and the cost of postoperative care is around 5,000-10,000 RMB, the total cost is around 20,000-35,000 RMB. If the mediastinal tumor invades a wide range, such as invading the vena cava, which requires vena cava artificial blood vessel replacement, or some very complicated mediastinal tumors, which require open heart treatment, the patient can cough appropriately to avoid pneumonia and other infections, and exercise appropriately to prevent venous thrombosis of the lower limbs. It is recommended that patients with mediastinal tumors should go to local hospitals in time and consult professional doctors.