First of all, although there is a small amount of metal in the body, there is no problem in passing the security check. According to the present level of aviation technology, the impact of large passenger planes on the human body is very small, with only a little discomfort during the take-off and landing phases, and the impact on the functioning of the heart can be said to be minimal. After cardiac surgery to meet the discharge conditions of the patient, is able to choose any means of transportation to go home (except walking tractor). There was a patient from Wenzhou at school who flew straight to Italy after valve replacement, with no problems at all! For self-driving car, because most heart surgery is a center incision, sternum split, not recommended too much activity of the upper limbs, so it is best to drive your own car after 2-3 months, and it is not recommended to bear weight on the upper limbs in three months (preferably not more than 10Kg).