So sorry to hear about this latest worrisome news. I just sent you a PM, and I'm sure others will be along whose experience and knowledge can give you more insight on what is happening with your brother. I know how anxious you must be, but do try to keep away from thinking about all the things that could go wrong and just concentrate on everything that could go right. Try to keep busy (your brother, too) Do write down all the questions you or your brother have for the doctors or for anyone here. Your brother has excellent doctors taking care of him and there is every chance for everything to turn out fine. Keep us updated, so we know what's happening.