my son is 31 yrs. old, and has a deterating heart , enlarged, main muscle is messed up, and pumping only 10 %, he just found this out 1 month ago , he has gotten rid of a lot of fluid with meds, the dr.put him on digoxin to maintain it.dr. said would talkabout heart transplant way way down the road. what is usually the chances on the meds, only pumping 10%,and ,does this sound like the right tratment for now ?