The FDA has given Medtronic approval to introduce its Attain Performa Model 4298 quadripolar lead and the Viva Quad XT and Viva Quad S cardiac resynchronization therapy defibrillators (CRT-D) in the U.S.
Having four electrodes on a lead allows cardiologists to select from any one of 16 available pacing configurations. Additionally, the short distance between the inner two electrodes provides more ability to finely tune CRT-D therapy.
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