One Year Incidence of Atrial Septal Defect After PV Isolation: A Comparison Between Conventional Radiofrequency and Cryoballoon Ablation

Giacomo Mugnai, Juan Sieira, Giuseppe Ciconte, Marta Soriano Hervas, Ghazala Irfan, Yukio Saitoh, Burak Hunuk, Erwin Stroker, Vedran Velagic, Kristel Wauters, Claudio Tondo, Giulio Molon, Carlo de Asmundis, Pedro Brugada, Jean-Baptiste Chierchia

Onderzoeksoutput: Articlepeer review

35 Citaten (Scopus)

Samenvatting

BACKGROUND: Transseptal (TS) catheterization is needed to access the left heart during pulmonary vein isolation (PVI) procedures. In the radiofrequency (RF) ablation procedure, left atrial access is commonly achieved with a double TS puncture; cryoballoon (CB) ablation usually requires only a single TS puncture. Our aim was to compare the incidence of iatrogenic septal defect (IASD) between double transseptal conventional RF and CB ablation.

METHODS AND RESULTS: Individuals having undergone PVI as index procedure by RF or CB ablation and a subsequent transesophageal echocardiography examination during postablation follow up in our center were consecutively included. A total of 127 patients formed the study group (92 males; mean age 60±11 years). IASD was present in 17 patients (13.4%) after a mean follow-up time of 11.6 months. The incidence of IASD at 1-year follow up following PVI was significantly higher in the CB ablation group compared with RF ablation group (22.2% vs 8.5%; p = 0.03). Mean IASD diameter was larger in the CB group (0.60×0.50 cm vs 0.44×0.35 cm) without statistical significance. Only left to right atrial shunt was observed. No adverse events were recorded in these patients during the follow up.

CONCLUSIONS: the incidence of IASD at 1-year follow up following CB ablation procedure for PVI is significantly higher with respect to RF procedures. Although no adverse clinical events were recorded in patients with persistence of IASD, more detailed echocardiographic examinations might be advised in all individuals exhibiting this finding. This article is protected by copyright. All rights reserved.

Originele taal-2English
Pagina's (van-tot)1049-1057
Aantal pagina's9
TijdschriftPACE - Pacing and Clinical Electrophysiology
Volume38
Nummer van het tijdschrift9
Vroegere onlinedatum2015
DOI's
StatusPublished - 2015

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