Back to Search
Start Over
Effect of pulmonary vein anatomy and left atrial dimensions on outcome of circumferential radiofrequency catheter ablation for atrial fibrillation.
- Source :
-
The American journal of cardiology [Am J Cardiol] 2011 Jan 15; Vol. 107 (2), pp. 243-9. - Publication Year :
- 2011
-
Abstract
- Multislice computed tomography (MSCT) is commonly acquired before radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) to plan and guide the procedure. MSCT allows accurate measurement of the left atrial (LA) and pulmonary vein (PV) dimensions and classification of the PV anatomy. The aim of the present study was to investigate the effect of LA dimensions, PV dimensions, and PV anatomy on the outcome of circumferential RFCA for AF. A total of 100 consecutive patients undergoing RFCA for AF (paroxysmal 72%, persistent 28%) were studied. The LA dimensions, PV dimensions, and PV anatomy were evaluated three dimensionally using MSCT. The PV anatomy was classified as normal or atypical according to the absence/presence of a common trunk or additional veins. After a mean follow-up of 11.6 ± 2.8 months, 65 patients (65%) maintained sinus rhythm. The enlargement of the left atrium in the anteroposterior direction on MSCT was related to a greater risk of AF recurrence. No relation was found between the PV dimensions and the outcome of RFCA. In addition, normal right-sided PV anatomy was related to a greater risk of AF recurrence compared to atypical right-sided PV anatomy. Multivariate analysis showed that an anteroposterior LA diameter on MSCT (odds ratio 1.083, p = 0.027) and normal right-sided PV anatomy (odds ratio 6.711, p = 0.006) were independent predictors of AF recurrence after RFCA. In conclusion, enlargement of the anteroposterior LA diameter and the presence of normal anatomy of the right PVs are independent risk factors for AF recurrence. No relation was found between the PV dimensions and outcome of RFCA.<br /> (Copyright © 2011 Elsevier Inc. All rights reserved.)
- Subjects :
- Atrial Fibrillation diagnostic imaging
Electrocardiography, Ambulatory
Female
Follow-Up Studies
Humans
Male
Middle Aged
Prognosis
Secondary Prevention
Angiography methods
Atrial Fibrillation surgery
Catheter Ablation methods
Heart Atria diagnostic imaging
Pulmonary Artery anatomy & histology
Tomography, X-Ray Computed methods
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1913
- Volume :
- 107
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- The American journal of cardiology
- Publication Type :
- Academic Journal
- Accession number :
- 21211601
- Full Text :
- https://doi.org/10.1016/j.amjcard.2010.08.069