Hi Mikeey ,
It's a pity your friends were never given a half decent explanation . Of course it's possible that at this moment in time there is no definitive explanation as to why this may occur . We all know that a HT result is never guaranteed , but it would certainly be beneficial for all if it was at least brought out into the open . Does it occur in 1 in a 50 , 1 :100 , 1 : 1000 ?
You'd also think that by now some research would have been undertaken into the phenomenon . At least that way , patients could be made more aware of the potential precursors that may lead to such a result , similar in ways to Dr's refusing prospective patients with poor donor characteristics .
I can appreciate why Dr's shy away from the subject , especially in the public domain , as with all things related to the internet things can be blown way out of proportion .
I can also understand your reticence in holding back from a procedure .
Anyway , I hope this thread and similar others can at least lead to some positive research on the subject .