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Implantable Defibrillator Wires Prone to Failure

...Even though the composition of those wires was changed in 1997 to improve reliability, both the newer and older versions of these Given that these devices are used to treat arrhythmias, dangerously irregular heartbeats that can lead to cardiac arrest, the researchers note that such a significant failure rate poses a public health threat.

"It's a very serious problem, because if the leads [wires] have defects, they have to be changed or the device cannot terminate fibrillation," said study author Dr.

Thomas Kleeman, a clinical electrophysiologist at Herzzentrum Ludwigshafen.

"Surgery to change them is not so easy," he added.

It is a problem that must be faced by Americans who are walking around with Kleeman and his colleagues looked at the reliability of They found an average 15 percent defect rate in the wires, with a median time to failure of 4.7 years.

A check found that other German institutions were facing the same problem, Kleeman said.

It's generally a simple issue...