Harvard Heart Letter

When an implantable defibrillator fails

Implantable cardioverter-defibrillators can stop a potentially deadly heart rhythm and restore a healthy one. Repeated bending and flexing can cause their leads to fail. Replacement or removal is an option.
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »