Arrhythmias & electrophysiology

Efficacy and safety of a novel hexaspline pulsed field ablation system in patients with paroxysmal atrial fibrillation: the PLEASE-AF study

EuropacePublished Single-arm multicentre trial

Authors' conclusion

The novel hexaspline PFA catheter demonstrated universal acute PVI with an excellent safety profile and promising 12-month freedom from recurrent atrial arrhythmias in an Asian/Chinese population with paroxysmal AF.

Study context

Population
Predominantly Asian/Chinese patients with drug-refractory paroxysmal AF28 operators
Participants
143 patients12 hospitals
Outcome
Freedom from any atrial arrhythmias lasting ≥30 s
Follow-up
12 months
Methodological detailsmulticentre (12 hospitals)
  • Multicentre (12 hospitals)

Main finding

As reported in the abstract

12-month freedom from any atrial arrhythmias lasting ≥30 s

Primary endpoint observed in 124 of 143 patients

86.7%

Further findings

Acute PVI success

All pulmonary vein (PVs) successfully isolated (565/565)
100%

Procedural times

Total procedure time
123.5 ± 38.8 min
Catheter dwell time
63.0 ± 30.7 min
Total pulsed field ablation (PFA) application time
169.7 ± 34.6 s
Total fluoroscopy time
27.3 ± 10.1 min

Safety

Small pericardial effusion 1-month post-procedure, not requiring intervention

Pericardial effusion in one patient
0.7%

Original publication

Efficacy and safety of a novel hexaspline pulsed field ablation system in patients with paroxysmal atrial fibrillation: the PLEASE-AF study. Europace. Published 24 June 2024. doi:10.1093/europace/euae174

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