Key result
Intra-atrial conduction block following radiofrequency delivery was observed in 6.9% of patients undergoing left free-wall accessory pathway ablation, indicating a left atrial isthmus.
Population
159 patients who underwent radiofrequency ablation of a left free-wall accessory pathway from 1995 to 1999
Design
Cohort
Authors
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Recognition of left atrial isthmus block may prevent electrogram misinterpretation during accessory pathway ablation; extends anatomic insights but remains hypothesis-generating.
Observational (n=159)
Identification of a left atrial isthmus of conductive tissue can prevent misinterpretation of electrograms during left accessory pathway ablation.
Luria et al. (2001) conducted an observational in Left accessory pathway (n=159). Radiofrequency (RF) ablation of a left free-wall accessory pathway was evaluated on Intra-atrial conduction block resulting from RF energy delivery. Intra-atrial conduction block following radiofrequency delivery was observed in 6.9% of patients undergoing left free-wall accessory pathway ablation, indicating a left atrial isthmus.
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