Left atrial anatomical variations correlate with atrial fibrillation sources near the left atrial ridge
نویسندگان
چکیده
Abstract Funding Acknowledgements Type of funding sources: None. Background Anatomical variations and characteristics the left atrium (LA) may have a previously undescribed effect on source locations in atrial fibrillation (AF). Electrographic flow (EGF) mapping is novel method used to estimate cardiac action potential atria that can detect AF sources patients with persistent AF. The EGF technology offers revolutionary possibility for AF, however, it not commercially available yet. Purpose This first study aiming investigate relationship between anatomical LA non-PV detected by Methods We collected computed tomography (CT) data from who underwent radiofrequency catheter ablation (CA) creates spatial temporal reconstruction electric potentials derived endocardial unipolar electrograms. By analyzing maps obtained during CA procedures, we localized LA. Patients individual stable activity above threshold (leading present more than > 26% time) were classified as having an S-Type signature source-dependent no active pattern leading characterized C-Type consistent source-independent assessed including size, LAA length, ostial diameter, trajectory superior pulmonary vein (LSPV) its relation CT scans. Abutting LAA-LSPV was defined cases when LSPV touched posterior aspect LAA, maximal distance two structures less 2 mm. Those where mm non-abutting LAA-LSPV. Results Thirty included this (mean age 62.4±6.8 years):23 had (77%), 7 (23%). identified 10 near ridge, while twenty ridge. characteristics, length diameter showed correlation presence described 19 abutting LAA-LSPV, 11 Three out presented ridge group, group (p=0.01). Conclusion Our suggests associated
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ژورنال
عنوان ژورنال: Europace
سال: 2022
ISSN: ['1099-5129', '1532-2092']
DOI: https://doi.org/10.1093/europace/euac053.192