PhD Scientific Days 2026

Poster Session 3.R - Cardiovascular Medicine and Research

Redo Ablation for Paroxysmal and Persistent Atrial Fibrillation: Long-Term Outcomes of High-Power Short-Duration versus Pulsed Field Ablation

Előadó neve

Dr. Padisák, Anna

Neptune code

QZPLHP

Előadó munkahelye

Semmelweis University Heart and Vascular Center

Előadó telefonszáma

+36 300164652

Előadó e-mail címe

padisak.anna.borbala@semmelweis.hu

Az előadás címe

Redo Ablation for Paroxysmal and Persistent Atrial Fibrillation: Long-Term Outcomes of High-Power Short-Duration versus Pulsed Field Ablation

Szerző(k) neve és munkahelye

Padisák Anna¹, Orbán Gábor¹, Salló Zoltán¹, Osztheimer István¹, Tanai Edit¹, Perge Péter¹, Nagy Klaudia Vivien¹, Tóth Patrik¹, Komlósi Ferenc¹, Szakál Imre¹, Merkely Béla¹, Gellér László¹, Szegedi Nándor¹

1: Semmelweis University Heart and Vascular Center

Bemutatás módja

Poszter

Szekció

Poster Session 3.R - Cardiovascular Medicine and Research

Language of the presentation

English

Preferred session

Cardiovascular Medicine and Research

Összefoglaló szövege

Introduction and Aims
Pulsed field ablation (PFA) and high-power short-duration (HPSD) radiofrequency ablation have recently been incorporated into clinical practice as novel technologies for performing pulmonary vein isolation (PVI).
Purpose:
This study aimed to compare the procedural performance, safety, and long-term outcomes of PVI using PFA and HPSD in the treatment of paroxysmal and persistent atrial fibrillation (AF).
Methods
Consecutive patients undergoing redo AF ablation at our center between July 2022 and October 2023 were retrospectively enrolled, regardless of the number of previous ablations. PFA was performed with the Farapulse catheter and HPSD ablation with the QDOT Micro catheter. The primary endpoint was freedom from electrocardiogram-documented atrial tachyarrhythmia recurrence and patient-reported symptoms. Recurrence was evaluated by 24-hour Holter monitoring at 3 and 24 months and at least once in between, with additional visits prompted by symptoms.

Results
A total of n=105 patients (63±10 years; 61% male) with paroxysmal (n=61 (58%)) or persistent (n=44 (42%)) AF were included in this analysis. PFA was performed in n=59 (56%) and HPSD ablation in n=46 (44%) patients. PVI was achieved in all patients, and all were in sinus rhythm at the end of the ablation. Procedure time was 61 [Interquartile range (IQR) 55-87] minutes in the PFA and 88 [IQR 62-100] minutes (p=0,085) in the HPSD group. Fluoroscopy time was 12 [IQR 10-16] and 9 [IQR 6-13] minutes (p=0,059) and left atrial time 42 [IQR 34-59] and 44±20 minutes (p=0,603), respectively. No major complications occurred. In the HPSD group, four groin hematomas and one pericardial effusion were observed; in the PFA group, three hematomas, one pseudoaneurysm, and one pericarditis were reported. At 3-month follow-up, freedom from atrial tachyarrhythmia was n=47 (80%)) with PFA and n=38 (83%) with HPSD p=0,702; at 24 months, rates were n=39 (66%) and n=26 (57%) (p=0,316), respectively.
Conclusions
PFA and HPSD ablation showed comparable safety, acute and long-term efficacy for redo AF ablation.
Funding: None.

University

Semmelweis University

Supervisor

Dr. Szegedi Nándor

Publication of my abstract

I do not give consent to the publication of my abstract on the website of the congress.

phd.section.field

in doctoral studies before complex exam (PhD)

Kind

Szabad

Status

elfogadva

Accepted presentation method

poszter

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

8933

Start

13:54

End

13:57