An active fixation quadripolar left ventricular lead for cardiac resynchronization therapy with reduced postoperative complication rates.
Robertson C., Duffey O., Tang P-T., Fairhurst N., Monteiro C., Green P., Grogono J., Davies M., Lewis A., Wijesurendra R., Ormerod J., Gamble J., Ginks M., Rajappan K., Bashir Y., Betts TR., Herring N.
BACKGROUND: The rate of left ventricular (LV) lead displacement after cardiac resynchronization therapy (CRT) remains high despite improvements in lead technology. In 2017, a novel quadripolar lead with active fixation technology became available in the UK. METHODS: This was a retrospective, observational study analyzing device complications in 476 consecutive patients undergoing successful first-time implantation of a CRT device at a tertiary center from 2017 to 2020. RESULTS: Both active (n = 135) and passive fixation (n = 341) quadripolar leads had similar success rates for implantation (99.3% vs. 98.8%, p = 1.00), although the pacing threshold (0.89 [0.60-1.25] vs. 1.00 [0.70-1.60] V, p = .01) and lead impedance (632 [552-794] vs. 730 [636-862] Ohms, p