MR evaluation of pulmonary vein diameter reduction after radiofrequency catheter ablation of atrial fibrillation.

European Radiology
Frédéric AnselmeJean-Nicolas Dacher

Abstract

Fifty consecutive patients aged 52+/-12 years suffering from drug refractory atrial fibrillation (AF) underwent baseline and post-ablation MR angiography (MRA) at a mean follow-up of 4+/-3.5 months. Pulmonary vein (PV) disconnection was performed with a maximum energy delivery of 30 W. MRA allowed a two-plane measurement of each PV ostium. After ablation, no significant stenosis was observed, and only 1/194 (0.5%) and 3/194 (2%) PVs had a diameter reduction of 31-40% in the coronal and axial planes, respectively. There was a significant overall post-procedural PV narrowing of 4.9% in the coronal plane and 6.5% in the axial plane (P=ns between both planes). MRA is an efficient technique that can be used in pre- and postoperative evaluation of AF patients. Using a maximal power delivery limited to 30 W, no significant PV stenosis was observed at mid-term follow-up. Late PV anatomical assessment is needed to confirm these results on long-term follow-up.

References

Sep 3, 1998·The New England Journal of Medicine·M HaïssaguerreJ Clémenty
Jun 27, 2000·Journal of Cardiovascular Electrophysiology·M I ScanavaccaE A Sosa
Nov 15, 2000·Circulation·M HaïssaguerreJ Clémenty
Feb 22, 2002·AJR. American Journal of Roentgenology·James G Ravenel, H Page McAdams
Jan 8, 2003·Circulation·Fred H M WittkampfMaarten-Jan Cramer
Apr 16, 2003·Journal of Cardiovascular Electrophysiology·Helmut PürerfellnerHans Joachim Nesser
Oct 15, 2003·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Benoit GhayeRobert F Dondelinger
Feb 26, 2005·Radiology·Yun-Hyeon KimH Page McAdams

❮ Previous
Next ❯

Citations

Apr 26, 2015·Revista Española De Cardiología·Susana Martín-GarreJulián Pérez-Villacastín
May 26, 2009·European Journal of Radiology·Moritz WagnerAlexander Lembcke
May 14, 2008·Magnetic Resonance Imaging Clinics of North America·Navid Rahmani, Charles S White
Aug 16, 2011·Circulation. Arrhythmia and Electrophysiology·Christian von BaryOkka W Hamer

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Filbrillation

Atrial fibrillation refers to the abnormal heart rhythm characterized by rapid and irregular beating of the atria. Here is the latest research.

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

© 2022 Meta ULC. All rights reserved