PhD Scientific Days 2019

Poster presentations: Cardio-vascular sciences

Pulmonary vein reconnection observed with multielectrode mapping late after second-generation cryoballoon or contact force sensing radiofrequency catheter ablation for atrial fibrillation

Előadó neve

Dr. Nagy, Zsofia

Előadó munkahelye

Gottsegen Gyorgy Hungarian Institute of Cardiology, Electrophysiology Department

Előadó telefonszáma

+36704911550

Előadó e-mail címe

nagyzsofia92@gmail.com

Az előadás címe

Pulmonary vein reconnection observed with multielectrode mapping late after second-generation cryoballoon or contact force sensing radiofrequency catheter ablation for atrial fibrillation

Szerző(k) neve és munkahelye

Zsofia Nagy1, Zsuzsanna Kis1, Zoltan Som1, Krisztian Kassa2, Levente Csakany1, Tamas Major1, Csaba Foldesi1, Attila Kardos1
1 Gottsegen Gyorgy Hungarian Institute of Cardiology, Budapest, Electrophysiology Department
2 Semmelweis University, Budapest

Bemutatás módja

Poszter

Szekció

Poster presentations: Cardio-vascular sciences

Language of the presentation

Hungarian

Témacsoport

cardio-vascular sciences

Összefoglaló szövege

Introduction: Late pulmonary vein reconnection (PVR) determines recurrence of atrial fibrillation (AF) after pulmonary vein isolation (PVI) procedures. The PVR rate was reported to be lower following the second-generation cryoballoon (CB) as compared to contact-force sensing radiofrequency (CF-RF) ablation using circular mapping catheters. Aims: In this single-center, retrospective study, the incidence and pattern of late PVR following an index PVI using the CB versus CF-RF catheter were examined with multielectrode mapping catheters (PentaRay). Method: A total of 66 [31 (47%) women, mean age=63±11.6 years] pts underwent a redo ablation due to AF recurrence after an index PVI accomplished with CB (n=37 pts) or CF-RF (n=29 pts). All repeated procedures were achieved in sinus rhythm using bipolar voltage map with multielectrode mapping catheter and the CARTO 3 Confidense Module (mean number of points=1012±602). We examined the reconnection pattern of the antral lesion sets. Results: Among 109 PVs in the CF-RF group, 82 (75.2%) showed conduction gaps in 28 pts (2.9 per patient). Whereas among 143 PVs in the CB group, 107 (74.8%) showed a PVR in 37 pts (2.9 per patient) (p=0.81). After CF-RF ablation, the inferior and the posterior part of the right inferior PV and the right carina showed conduction gaps more likely. In the CB group, the left atrial appendage-left superior PV ridge and the superior segment of the left superior PV were most frequently reconnected. In the CB group late PVR was associated with higher nadir temperature (-52.8±5.3°C vs -42.2±8.6°C, p=0.031), while in the CF-RF group the mean CF was lower in the reconnected PVs as compared to those PVs which remained isolated (10±3.2 g vs 18.8±4.9 g, p<0.05). Conclusion: In our single-center analysis no difference was observed in the PVR incidence and the antral lesion sets after CB or CF-RF ablation.

Kind

Szabad

Status

elfogadva

Accepted presentation method

poszter

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

2849

Presentation file URL

//docs.kmcongress.com/phd2019/eposter_6078.jpeg

Authors (legacy)

Zsofia Nagy1, Zsuzsanna Kis1, Zoltan Som1, Krisztian Kassa2, Levente Csakany1, Tamas Major1, Csaba Foldesi1, Attila Kardos1
1 Gottsegen Gyorgy Hungarian Institute of Cardiology, Budapest, Electrophysiology Department
2 Semmelweis University, Budapest

Data of the presenter

EFOP "Kiegészítő Kiválósági Kutatási Ösztöndíj"
Cardiovascular Disorders
Supervisor: Attila Kardos MD PhD
E-mail: nagyzsofia92@gmail.com