Document Type
Article
Publication Title
Journal of Arrhythmia
Abstract
BACKGROUND: An RFA lesion quality indicator, Surpoint Tag Index
OBJECTIVE: To describe the relationship between atrial wall thickness and TI in CTI exhibiting bidirectional block.
METHODS: Data from 492 RFA lesions from 25 patients undergoing PVI and CTI ablations in SR with point-by-point RF lesions (< 45 W) utilizing a Thermocool Smarttouch
RESULTS: In lesions exhibiting bidirectional block, the thinnest (1-2 mm; 5% lesions) and thickest (8-10 mm; 6% lesions) portions of the CTI correlated with the lowest (429 ± 75) and highest (516 ± 64) TI. The bulk of thickness (2-6 mm; 80%) correlated with a TI of 455 ± 72 (
CONCLUSION: A mean TI value of 455 correlates with bidirectional block across the bulk of CTI with lower and higher values needed for the thinner and thicker portions, respectively. Tissue composition, aside from wall thickness, influences TI values for the creation of the bidirectional block.
First Page
118
Last Page
125
DOI
10.1002/joa3.1266210.1002/joa3.12662
Publication Date
2-1-2022
Recommended Citation
Smith A, Amin AK, El-Zein R, Billakanty SR, Chopra N. Relationship between Surpoint Tag Index, a Radiofrequency Ablation lesion quality indicator, and Atrial wall thickness in Cavotricuspid isthmus Ablations exhibiting bidirectional block. J Arrhythm. 2021 Dec 4;38(1):118-125. doi: 10.1002/joa3.12662. PMID: 35222758; PMCID: PMC8851572.