Hi,
I am very sorry to hear about your brother. My condolences to you and your family.
Unfortunately, heart failure is the leading cause of death in thalassemics throughout the world. I am in this group because my best friend, Lisa started it. She died from congestive heart failure in April, 2004. My friend Vittey from Maldives also recently died from the same cause. It is the most serious problem confronting thal health and there are no easy answers. More research needs to be done because it is not only iron overload causing these problems. 95% of thal majors have weakening in the left ventricle and this is not all due to iron overload. It is suspected that frequent transfusions play a role but answers need to be found if we are going to give thals a full life.