Medtronic’s Sprint Fidelis defibrillator, which has drawn scrutiny because of the potential for lead fractures. The leads connect the defibrillator to the heart and are causing the defibrillator to deliver unnecessary and massive shocks, emit a beeping sound, or to not operate at all. The young may be more affected by this defect since they tend to lead a more active life and such activities may increase the risk of lead fracture. On October 15, 2007, the FDA urged Sprint Fidelis defibrillator patients to contact their physician immediately if they experience multiple shocks, lightheadedness, fainting, or palpitations.