Journal article
High incidence of low catheter-tissue contact force at the cavotricuspid isthmus during catheter ablation of atrial flutter: Implications for achieving isthmus block
S Kumar, JB Morton, G Lee, K Halloran, PM Kistler, JM Kalman
Journal of Cardiovascular Electrophysiology | WILEY | Published : 2015
DOI: 10.1111/jce.12707
Abstract
Contact Force During Cavotricuspid Isthmus Ablation Introduction Recurrent atrial flutter following cavotricuspid isthmus (CTI) ablation remains a significant problem. The prevalence of low contact force (CF) during CTI ablation using standard tools is unknown. Our aim was to characterize the prevalence of low CF applications when experienced operators performed CTI ablation using "traditional" markers of contact blinded to CF measurements. Methods and Results Average CF (grams, g) and force-time integral (FTI) was analyzed in 458 lesions in 17 patients undergoing CTI ablation. The isthmus was divided into the annular, mid and caval segments for region-specific analysis. Despite "good" conta..
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Funding Acknowledgements
[ "Drs. Kumar and Lee are supported by National Health and Medical Research Council of Australia (NHMRC) Early Career Fellowships. Drs. Kalman and Kistler are supported by practitioner fellowships from the NHMRC.", "Dr. Morton reports participation on a research grant supported by Biotronik. Dr. Kalman reports research support from St. Jude Medical, Medtronic, Boston Scientific, & Biosense Webster; he received compensation for participation on a speaker's bureau for Biotronik. Other authors: No disclosures." ]