Previous studies indicate force time integral (FTI) as a radiofrequency (RF) lesion quality marker, while not considering power supply. Tacticath™ Quartz catheter provides Lesion index (LSI), a lesion quality marker derived by contact force (CF), power supply, and RF time combined. Our aim is to assess LSI and FTI correlation and a LSI-related cutoff of atrial fibrillation (AF) recurrences 12 months after pulmonary vein isolation (PVI).
Dello Russo A, Fassini GM, Casella M, Romanelli E, Pala S, Riva S, Catto V, Moltrasio M, Tundo F, Zucchetti M, Majocchi B, Dessanai MA, Pizzamiglio F, Vettor G, Ribatti V, Gasperetti A, Cellucci S, Negro G, Sicuso R, Carbucicchio C, Tondo C. Lesion index: a novel guide in the path of successful pulmonary vein isolation. J Interv Card Electrophysiol 2018 Dec 4. doi: 10.1007/s10840-018-0487-z. [Epub ahead of print]