Predicting Success in Atrioventricular Nodal Re-entrant Tachycardia Ablation
Author Information
Author(s): Jimenez-Candil Javier MD, PhD, Morinigo Jose Luis MD, Ledesma Claudio MD, Leon Victor MD, Martín-Luengo Candido MD, PhD
Primary Institution: Department of Cardiology, University Hospital, Salamanca, Spain
Hypothesis
The study aims to analyze predictors of non-inducibility of AVNRT, focusing on the relationship between sinus cycle length and junctional rhythm cycle length during radiofrequency ablation.
Conclusion
The combination of achieving at least 11 cumulative junctional beats and a sinus cycle length to junctional rhythm cycle length ratio of at least 1.25 predicts non-inducibility in almost all patients.
Supporting Evidence
- The study found a significant correlation between the sinus cycle length before RF and the junctional rhythm cycle length.
- A cumulative number of junctional beats of at least 11 was identified as a predictor of success.
- The CL-ratio of ≥1.25 significantly increased the positive predictive value for non-inducibility.
Takeaway
Doctors can tell if a heart treatment will work by looking at how fast the heart beats before and during the treatment.
Methodology
The study included 75 patients with AVNRT who underwent radiofrequency ablation, analyzing junctional rhythms and their characteristics.
Limitations
The lower number of patients could decrease the statistical power of the findings, and the accuracy of ablation site determination may not be optimal.
Participant Demographics
Mean age: 48.9; 84% females; 24% with hypertension.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI: 2.3-8.2
Statistical Significance
p<0.001
Want to read the original?
Access the complete publication on the publisher's website