Just-Approved Defibrillators Limit Unnecessary
TUESDAY, March 29 (HealthDay News) -- Defibrillator maker
Medtronic says its new line of Protecta devices has been approved
by the U.S. Food and Drug Administration. The devices incorporate
"Smart Shock" technology that recognizes when irregular heartbeats
are life-threatening and delivers therapeutic shocks "only when
appropriate," Medtronic said in a news release.
Implanted defibrillators are designed to shock an irregularly
beating heart (ventricular arrhythmia) back into a normal rhythm.
However, sometimes the devices sense a non-life-threatening
arrhythmia or electrical noise and produce an "inappropriate
shock," Medtronic said.
As many as one in five people with implantable defibrillators
experiences inappropriate shocks, Medtronic said, adding its
studies concluded that 98 percent of people with the Protecta
devices were free of inappropriate shocks a year after implant.
Shipments of the new devices will begin immediately, said
Medtronic, based in Minneapolis.
To learn more about this type of device, visit the
U.S. National Library of Medicine.
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