Association between pulmonary vein orientation and ablation outcome in patients undergoing multi-electrode ablation for atrial fibrillation

Journal of Cardiovascular Computed Tomography
Thomas J BuistArif Elvan

Abstract

Previous studies reported on the impact of pulmonary vein orientation on pulmonary vein isolation (PVI) outcome in atrial fibrillation patients undergoing laser balloon PVI and point-by-point radiofrequency ablation. Demonstrate the association between pulmonary vein orientation and PVI outcome after multi-electrode radiofrequency ablation. 120 patients undergoing PVI with a circular MER catheter were included. A left atrial ECG-triggered CT was performed in all patients prior to PVI. The orientation of all pulmonary veins at the insertion into the left atrium was measured in the axial and coronal planes. pulmonary veins were classified as having a ventral/dorsal and caudal/cranial orientation depending on the pulmonary vein trunk angle as compared to the median angle. Mean age was 56 years, arrhythmia-free survival after a median follow-up of 20 months was 54.2%. Left upper pulmonary vein orientation within the coronal plane was associated with arrhythmia-free survival, ranging from 58% with a cranial pulmonary vein orientation to 21% with a caudal orientation (p = 0.003). Similarly, arrhythmia-free survival was 50% in patients with a caudal orientation and 33% in patients with a cranial orientation of the left lower pulmonary...Continue Reading

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Citations

Oct 19, 2016·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·P GalA Elvan
Aug 5, 2020·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Corrado TomasiAndrea Rubboli
Mar 12, 2021·European Heart Journal Cardiovascular Imaging·Nándor SzegediLászló Gellér

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