Transplant it is a super major surgery. Any kind of transplant has its complications, and graft rejection is one of them. There are many other complications associated with the transplant therefore transplant needs a multidisciplinary approach and a team of experts to deal with such patients.
Consultant transplant specialist he will be in a better position to guide you accordingly, because everything depends on patients age, his condition associated comorbidities, the match of the graft and many other factors. Consult a transplant specialist for guidance. Hope our answer helps you.