Key result
Ablation of premature ventricular contractions using a pattern matching filter significantly reduced radiofrequency ablation time (8.1 vs 13.2 min, p<0.001) with similar acute success (87.8% vs 90.0%).
Why the study?
To evaluate the usefulness of the pattern matching filter function combined with robotic magnetic navigation in guiding catheter ablation of premature ventricular contractions.
Does the addition of a pattern matching filter (PMF) to robotic magnetic navigation (RMN) improve procedural outcomes in patients undergoing radiofrequency ablation for premature ventricular contractions (PVCs)?
Cohort (n=118)
Does the addition of a pattern matching filter (PMF) to robotic magnetic navigation (RMN) improve procedural outcomes in patients undergoing radiofrequency ablation for premature ventricular contractions (PVCs)?
The addition of a pattern matching filter to robotic magnetic navigation for PVC ablation significantly reduces radiofrequency ablation time and increases mapping points without compromising safety or success rates.
PMF with RMN shortens procedure and ablation times without raising success rates; leaves open efficacy gains in prospective trials.
BACKGROUND: This study's intent is to evaluate the usefulness of pattern matching filter (PMF) function combined with robotic magnetic navigation (RMN) in guiding the ablation of premature ventricular contractions (PVCs). HYPOTHESIS: Assume that PMF can improve the outcomes of PVCs ablation using RMN. METHODS: A retrospective analysis was completed consisting of 118 consecutive patients with PVCs who underwent radiofrequency ablation guided by RMN. According to the application of PMF, patients were divided into two groups: 20 patients underwent ablation without PMF (group A), and another 98 patients received ablation incorporating PMF (group B). RESULTS: ，p = 0.208) had no significant difference. Group B had a more than twofold number of points acquired (66.9 ± 23.0 vs. 143.9 ± 68.3, p < 0.001) and required a shorter radiofrequency ablation time (13.2 ± 3.5 min vs. 8.1 ± 2.9 min, p < 0.001). There were no serious complications in either group. The acute success rate was similar [90.0% (18/20) vs. 87.8% (86/98), p = 1.000] in two groups, and the success rate was also similar in the long-term follow-up [83.3% (15/18) vs. 87.2% (75/86), p = 0.776]. CONCLUSIONS: The ablation of PVCs guided by RMN is safe and effective. Combined with the functional capability of PMF, both procedure time and radiofrequency ablation time were significantly decreased.
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Liu et al. (2023) conducted a cohort in Premature ventricular contractions (n=118). Pattern matching filter (PMF) vs. Ablation without PMF was evaluated on Acute success rate (p=1.000). Ablation of premature ventricular contractions using a pattern matching filter significantly reduced radiofrequency ablation time (8.1 vs 13.2 min, p<0.001) with similar acute success (87.8% vs 90.0%).
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