Key result
Spontaneous accelerated junctional rhythm occurred in 17.2% of young patients undergoing RF ablation for AVNRT compared to 0% of controls with concealed AV accessory pathways (P=0.004).
Why the study?
Is spontaneous accelerated junctional rhythm associated with AVNRT in young patients undergoing radiofrequency ablation?
Population
87 young patients undergoing radiofrequency ablation, comprising 29 patients with atrioventricular node…
Comparison
Radiofrequency catheter ablation for AVNRT vs Radiofrequency catheter ablation for a concealed…
Design
Case-control
Follow-up
median 15 months for the 5 patients with AJR
Authors
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May mark AVNRT substrate in young patients; hypothesis-generating and requires prospective validation before guiding ablation.
Case-Control (n=87)
Is spontaneous accelerated junctional rhythm associated with AVNRT in young patients undergoing radiofrequency ablation?
Absolute Event Rate: 17.2% vs 0%
p-value: p=0.004
Spontaneous accelerated junctional rhythm is significantly associated with AVNRT in young patients, and its elimination during ablation may predict successful slow pathway modification.
Epstein et al. (1997) conducted a case-control in Atrioventricular node reentrant tachycardia (AVNRT) (n=87). Atrioventricular node reentrant tachycardia (AVNRT) vs. Concealed AV accessory pathway was evaluated on Spontaneous accelerated junctional rhythm (AJR) (p=0.004). Spontaneous accelerated junctional rhythm occurred in 17.2% of young patients undergoing RF ablation for AVNRT compared to 0% of controls with concealed AV accessory pathways (P=0.004).
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