my name is krish , i would like to know , my father has diebetic , has had 2 heart attacks nearly 2 years ago , and has ulcer gangrene and the left toe of the left leg , which is only about 2 cm of gangrene which has recently devolped , becuase all the problems he has would you recomend a leg grafting bypass? we really want to save his leg , he had his right leg bypass 4 years ago and it was sucsessfull and is very healty right now just need to sort out the left leg, need your helpthanks kind regardskrish waiting for your reply