Mother hadAortic Aneurysm graft repair 11-7-11 she has ben unable to eat and very fatigued. Dehydrated and unable to eat and no one seems concerned. 77 years old has lost over 20lbs and cannot hardly get out of bed to go t o restroom alone what should we do ?

Summarized question: What causes loss of appetite and fatigue after Aortic Aneurysm graft repair?