title: Ask the doctors.  I am 90 years old and have had severe heart failure for seven years after having a heart attack.  I have an implantable defibrillator.  It has never gone off.  It is near the end of its lifetime, and the cardiologist asked me if I want it replaced.  What would you advise?
authors.forename: Thomas
authors.initials: T
authors.lastname: Lee
authors.forename: Richard
authors.initials: R
authors.lastname: Lee
mesh_terms: D000367:Age Factors; D000369:Aged, 80 and over; D001145:Arrhythmias, Cardiac / Q000517:prevention & control*; D017147:Defibrillators, Implantable; D006304:Health Status; D006801:Humans; D018579:Patient Selection; D019919:Prosthesis Implantation; D012086:Reoperation; D018570:Risk Assessment