In this article a revision of the several problems of cardiac transplantation in the Cardiothoracic Surgery Center of the Hospital of S. João is done. After a revision of the exams that have to be done and the contra-indications to surgery, the problems concerning the donors are considered. The principal conclusion to take out of is that, in the majority of the cases, the problem of the few number of cardiac transplants done, is not the scarcity of donors.