Key result
Right tricuspid annulus ablation successfully eliminates a slanted 2.2 cm left-sided accessory pathway.
This case highlights the anatomical variant of a long slanted transseptal accessory pathway that can be successfully ablated from the contralateral annulus.
Right-sided ablation may succeed for left AP with slanted transseptal course; hypothesis-generating, needs confirmation beyond single case.
A 63-year-old male with Wolff-Parkinson-White syndrome was admitted for ablation of accessory pathway. Intracardiac electrogram revealed a left-side accessory pathway during tachycardia, which was successfully ablated from the right posterior tricuspid annulus because of a long slanted transseptal accessory pathway (2.2 cm).
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Wang et al. (2011) studied this question. Ablation of a left-sided accessory pathway was successfully performed from the right posterior tricuspid annulus due to a 2.2 cm long slanted transseptal pathway.
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