Pmeet, because transfusions introduce new antigens into the body, it is recommended to do BMT as early as possible to minimize the amount of foreign antigens present, which create antibody reactions to the transfused blood. Of course, if a match is not yet found, patience is required and proper treatment, including chelation is necessary to maintain the health of the patient prior to the BMT.
And a comment on abortion and thalassemia. I have no interest in reviving the moral discussions involved. My own opinion is that this is a decision that should always be left to the parents and we should never make any judgments on the choices of others. This opinion was shared by Lisa Cammilleri, and the respect for parents and their privacy will always be held with utmost regard at thalpal. With that said, I am not completely informed about official views towards abortion in India, but I do know it is legal there and I also know that many parents in India and other nearby nations often choose abortion once they learn the fetus is a thal major. Many of these parents already have at least one thal major child and feel that they cannot handle the burden and do not want to inflict thalassemia on their children. I realize that for many, there is a great moral and ethical problem, but I do hope we can all realize that we can never walk in the shoes of the parents making these decisions and should never assume that we can ever be in position to judge. Being a thal major isn't easy even when the best treatment is available and for much of the world, proper treatment is only something that can be read about. If parents trying for an HLA match discover the fetus to be thal major and choose to abort, I feel the only message that should be given is we're sorry and please persevere.