The Heart Rhythm Society has said that defibrillator lead wires need better surveillance to detect defects, and has called on hospitals to train doctors in the delicate procedure of removing such wires from patients.
The lead is a wire that connects an implantable defibrillator to the heart. If a lead breaks, the defibrillator can emit a massive and painful shock, and in the worst case scenario, preventing a defibrillator from sending a necessary shock to the heart.
In 2007, Medtronic Inc.’s Sprint Fidelis lead was removed from the market following reports of 5 deaths due to lead fractures with another 13 deaths caused by “possible or likely contributing factor” of defective leads.
Before the recall, Sprint Fidelis leads had been implanted with 90% of Medtronic’s defibrillators, and around 150,000 people are still implanted with a Sprint Fidelis lead.
The Heart Rhythm Society used the Sprint Fidelis recall in its request for a surveillance system to track lead performance in order to spot defective devices earlier. The group also said hospitals need to train more doctors to remove faulty defibrillator leads.
During the Sprint Fidelis recall, four deaths occurred when doctors tried to remove defect leads from patients. The group said physicians should perform at least 40 extractions under expert supervision before operating on their own. Supervising physicians should have performed at least 75 extractions with a high rate of success, the group states. They also recommended that such training take place only medical centers that perform a large number of lead extractions each year should train physicians to perform the surgery.
Finally, the group called on the FDA to require that new defibrillator leads be tested in humans before they are approved. Currently, most leads are approved through the agency’s fast track process, which is reserved for devices that are considered modifications of existing products. The fast track process does not require human studies.
If you or someone you love has been injured by a defective medical device, it’s important to seek out expert advice of an experienced defective drug attorney for valuable insight.