Key result
In patients undergoing ablation for macroreentrant atrial tachycardia, a conduction velocity >60 cm/sec and an isthmus width >40 mm were the strongest predictors of procedural and cumulative failure.
Observational (n=52)
Conduction velocity >60 cm/sec and isthmus width >40 mm are strong independent predictors of procedural and cumulative failure in the ablation of macroreentrant atrial tachycardia.
No takes yet. Share an insight, caveat, or question.
May inform risk stratification for macroreentrant atrial tachycardia ablation; leaves open need for prospective validation before guiding decisions.
Ponti et al. (2009) conducted an observational in Macroreentrant atrial tachycardia (n=52). Electroanatomic mapping and ablation vs. Unsuccessfully treated cases was evaluated on Procedural failure and cumulative failure (procedural failure + early recurrences). In patients undergoing ablation for macroreentrant atrial tachycardia, a conduction velocity >60 cm/sec and an isthmus width >40 mm were the strongest predictors of procedural and cumulative failure.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: