Key result
Persistent pathway potential guidance enables successful RF ablation of right atriofascicular pathway after mechanical trauma.
Why the study?
Mechanical trauma to right atriofascicular pathways during radiofrequency ablation may affect accessory pathway potential recording and procedural success.
Case Report (n=1)
Accessory pathway potentials can still be recorded and guide successful ablation of right atriofascicular pathways despite mechanical catheter trauma.
Answers are grounded in this paper and cite their sources.
May support proceeding with RAFP ablation despite mechanical trauma; leaves open generalizability to broader practice.
Radiofrequency ablation of right atriofascicular pathways (RAFPs) is frequently complicated by the occurrence of mechanically induced trauma to the pathway by the ablation catheter. Since recording of accessory pathway (AP) potential is critical for achieving successful ablation of RAFP, one may fear that long-lasting mechanically induced trauma to the AP will affect recording of AP potential and thereby adversely affect the procedure outcome. We report a patient with antidromic tachycardia involving an antegrade RAFP. Despite long-lasting catheter trauma to the RAFP, mapping of the tricuspid annulus showed persistent recording of an AP potential that enabled us to continue the procedure and successfully abolish the AP.
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Belhassen et al. (2010) conducted a case report in Antidromic tachycardia involving an antegrade right atriofascicular pathway (n=1). Radiofrequency ablation guided by pathway potential recording was evaluated on Successful ablation of the accessory pathway. Radiofrequency ablation of a right atriofascicular pathway was successfully completed guided by persistent accessory pathway potential recording despite long-lasting catheter-induced mechanical trauma.
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