Abstract:In the 50 years since the first successful human bone marrow transplant (BMT) was performed in 1959, BMT has become the optimal therapy for a wide variety of life-threatening paediatric haematological, immunological and genetic disorders. Unfortunately, while BMT generally provides the only possibility of cure for such afflicted children, few (25%) have a matched sibling available, and suitably matched unrelated donors are often not identified for many children in need of BMT. And even where BMT is possible, treatment is complex and arduous and associated with significant mortality and morbidity. The issues raised when either or both the donor and recipient are children and lack the capacity to make informed and rational decisions relating to BMT pose great challenges for all involved. This paper examines some of the ethical dilemmas that confront patients, families and medical practitioners when considering bone marrow transplantation in a child.Key words: bone marrow; ethics; paediatrics; stem cell; transplant.Born of the fallout from the most destructive force known to man, bone marrow (BM) transplantation (BMT) sits directly on an interesting ethical juncture between harm and cure in human history (haematopoietic stem cell transplant, haematopoietic progenitor cell transplantation and haematopoietic cellular transplant are all terms used to describe BMT; in this paper, we use the term BMT). Despite several early attempts to use transplanted BM therapeutically in the early 1940s, 1 it was not until radiation from the world's first nuclear tests began exposing human subjects to severe forms of radiation injury that focus was placed on developing the therapeutic potential of BMT.
2Despite extensive backing from the US government, early studies with BMT yielded only very limited success and led to the deaths of over 200 patients. It was not until 1959, when the French doctor Georges Mathé successfully restored haematopoiesis in six adult Yugoslavian victims of a radiation accident that the first partially successful BMT took place.1 BMT became a recognised therapy for other forms of BM failure, and in 1968, the world's first successful BM transplant was performed on a child with severe combined immunodeficiency syndrome. In the 50 years following Mathé's pioneering work, BMT has become the preferred treatment for a diverse range of fatal and debilitating diseases, including BM failure syndromes, immunodeficiencies, haematological malignancies, haemoglobinopathies and congenital metabolic disorders.There are two different types of BMT -autologous BMT and allogeneic BMT. In autologous transplantation, the stem cells are collected from and later re-infused into the same individual following the administration of high-dose chemotherapy. In allogeneic transplantation, the donor and recipient are different individuals. Allogeneic transplantation is further categorised according to: 1 The relationship between the donor and the recipient, which can be • syngeneic (identical twin),• related, and • unrelated. 2 T...