Pulmonary Vein Orientation Assessment: Is It Necessary in Patients Undergoing Contact Force Sensing Guided Radiofrequency Catheter Ablation of Atrial Fibrillation

Overview

Journal Int J Cardiol Heart Vasc

Date 2017 Aug 9

PMID 28785670

Citations 2

Authors

Pim Gal

Joris F W Ooms

Jan Paul Ottervanger

Jaap Jan J Smit

Ahmet Adiyaman

Anand R Ramdat Misier

Peter Paul H M Delnoy

Piet L Jager

Arif Elvan

Affiliations

Soon will be listed here.

Abstract

Purpose: We hypothesized that pulmonary vein (PV) orientation influences tissue contact of the contact force (CF) sensing radiofrequency ablation catheter (CFC) and therefore atrial fibrillation (AF) free survival after pulmonary vein isolation (PVI). The aim of this study was to determine the association between PV orientation, CF and AF free survival in patients undergoing CFC PVI.

Methods: Sixty consecutive patients undergoing CFC PVI were included. ECG-triggered cardiac CT scans were obtained in all patients before PVI, and the PV orientation was measured at the insertion in the LA for all PVs in both the transverse and frontal plane. PVs were assigned to 1 of 4 orientation groups: ventral-caudal, dorsal-caudal, ventral-cranial and dorsal-cranial.

Results: Mean age was 59 years, 88% had paroxysmal AF. AF free survival off anti-arrhythmic drugs after a median follow-up of 12 months was 58% after a single PVI procedure. No association was found between PV orientation and CF. Furthermore, no association was found between PV orientation and AF free survival. In univariate analysis, the number of lesions with a mean CF of 10 g was associated with AF free survival. However, in multivariate analysis, only the AF duration was significantly associated with AF free survival.

Conclusions: This study shows that in patients undergoing PVI with the CFC ablation system, PV orientation does not affect CF and is not associated with AF free survival. PV orientation assessment does not appear to be necessary in patients undergoing CFC PVI.

Citing Articles

Pulmonary Veins Morphometric Characteristics and Spatial Orientation Influence on Its Cryoballoon Isolation Results.

Mamchur S, Chichkova T, Khomenko E, Kokov A Diagnostics (Basel). 2022; 12(6).

PMID: 35741132 PMC: 9221566. DOI: 10.3390/diagnostics12061322.

Effective contact and outcome after pulmonary vein isolation in novel circular multi-electrode atrial fibrillation ablation.

Gal P, Buist T, Smit J, Adiyaman A, Misier A, Delnoy P Neth Heart J. 2016; 25(1):16-23.

PMID: 27752967 PMC: 5179364. DOI: 10.1007/s12471-016-0907-6.

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