To evaluate changes in premature ventricular complex (PVC) burden at 3 and 12 months following first-time pulmonary vein isolation (PVI) in atrial fibrillation patients under standard antiarrhythmic drug therapy, with a focus on the influence of different ablation techniques.
Key Findings:
PVC burden was assessed at baseline, 3 months, and 12 months post-PVI, with significant changes indicating clinical relevance.
Statistical analysis revealed significant changes in PVC counts over time, suggesting a need for tailored post-ablation management.
Subgroup analyses indicated variations in PVC burden based on the type of ablation technique used, highlighting the importance of technique selection.
Interpretation:
The study provides insights into the impact of PVI on PVC frequency, suggesting that ablation may influence ventricular electrical activity differently depending on the technique employed, warranting further investigation into long-term outcomes.
Limitations:
Retrospective design may introduce selection bias.
Exclusion of patients with high baseline PVC burden may limit generalizability.
Potential confounding factors related to antiarrhythmic therapy were not fully controlled, including patient adherence.
Conclusion:
PVI appears to have a significant effect on PVC burden in AF patients, with variations based on the ablation technique used, warranting further investigation into long-term outcomes.
by Johannes Wörsdörfer, Noah Fantazi, Anas Alnaimi, Mostafa-Mahdi Emrani, Maximiliane Oldhafer, Andreas Napp, Nikolaus Marx, Matthias Daniel Zink, Michael Gramlich
