"Essentially, this 'little tumble' would almost certainly be the cause of her death." I don't mean to be ghoulish, but - how? What is likely to be the actual cause of death in a person who is that age, and in that situation? She's in hospital - how would her other issues take over? Just trying to understand, I have people I love nearing this age, and want all the knowledge I can get. I'll be there, someday too soon, as well.