SUBJECT: Treatment without amputation
MESSAGE: My father is 70 years old his arteries in the both limbs have blockage. He is having pace maker. Doctor's suggest to go for amputation but there is high risk in it. Please suggest treatment without amputation! He foot is turning black and blisters are forming on his limbs.  Please advice

Summarized question: What alternatives to amputation are available for blocked leg arteries if the foot is turning black?