The patient's immune system rejected the transplanted heart. = The patient rejected the transplanted heart.病人的免疫系统对植入心脏有排异反应。Cyclosporine is used to prevent the rejection of transplanted organs.环孢菌素用于抑止器官移植的排异反应。There is always the risk of rejection with a heart transplant.心脏移植始终包含排异反应的风险。