Related Experiment Video
Updated: May 14, 2026
11:04
Control of Cell Geometry through Infrared Laser Assisted Micropatterning
Published on: July 10, 2021
Optimized workflow for pentaspline PFA and its impact on PVI durability: evidence from systematic remapping
Daniel Rodríguez-Muñoz1,2, Lucía Cobarro Gálvez1,2, Ez Alddin Rajjoub Al-Mahdi1,2
1Cardiology Department, Hospital Universitario 12 de Octubre, Avda. de Córdoba s/n, Madrid 28041, Spain.
Summary
Optimizing procedural workflow for pentaspline pulsed-field ablation (P-PFA) significantly enhances pulmonary vein isolation (PVI) durability. Refinements reduced PV reconnection rates to nearly 100%, indicating technique is key.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Real-world data show high pulmonary vein (PV) reconnection rates after pentaspline pulsed-field ablation (P-PFA).
- This suggests potential limitations in procedural workflow rather than the P-PFA catheter itself.
Purpose of the Study:
- To assess the impact of progressive workflow refinements on PVI durability using P-PFA.
- To determine if PV reconnection is technique-dependent.
Main Methods:
- A prospective, single-center study involving patients undergoing first-time P-PFA for PVI.
- Systematic invasive remapping was performed ≥30 days post-procedure.
- Procedural workflow was refined across three phases based on remapping findings.
Main Results:
- Per-vein durability increased from 89.8% to 99.2% (p=0.005) and per-patient durability from 60.0% to 96.7% (p=0.004) across the three phases.
- The number of reconnected PVs decreased from 13 in phase 1 to 1 in phase 3.
- Total PFA applications and procedure times increased with workflow refinements, with no major complications.
Conclusions:
- Progressive workflow refinements significantly improved PVI durability with pentaspline P-PFA.
- The findings support that PV reconnection is primarily technique-dependent.
