Key result
Slow pathway ablation results in 0 symptomatic tachycardia recurrences in documented but noninducible PSVT.
Why the study?
Patients with documented PSVT may not have inducible tachycardia in the electrophysiology laboratory, but slow pathway ablation may potentially be useful given dual AV node pathways serve as the substrate for AVNRT.
Does slow pathway ablation prevent recurrence of symptomatic tachycardia in patients with documented but noninducible PSVT and dual AV node physiology?
Does slow pathway ablation prevent recurrence of symptomatic tachycardia in patients with documented but noninducible PSVT and dual AV node physiology?
Slow pathway ablation appears highly effective in preventing symptomatic tachycardia recurrence in patients with documented but noninducible PSVT who have evidence of dual AV node pathways.
No takes yet. Share an insight, caveat, or question.
May reduce symptoms in select noninducible PSVT cases; leaves open need for randomized confirmation before practice change.
Bogun et al. (1996) studied Documented but noninducible paroxysmal supraventricular tachycardia (PSVT) with evidence of dual AV node pathways (n=7). Radiofrequency ablation of the slow pathway was evaluated on Recurrence of symptomatic tachycardia. Slow pathway ablation resulted in no recurrences of symptomatic tachycardia over a mean 15-month follow-up in patients with documented but noninducible PSVT (success rate 95% CI 65% to 100%).
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