Left Atrial Tachycardia After Atrial Fibrillation Ablation: Can Magnetic Resonance Imaging Assist the Ablation?
We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. M...
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Published in | Canadian journal of cardiology Vol. 31; no. 1; pp. 104.e1 - 104.e3 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Elsevier Inc
01.01.2015
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Subjects | |
Online Access | Get full text |
ISSN | 0828-282X 1916-7075 1916-7075 |
DOI | 10.1016/j.cjca.2014.10.002 |
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Abstract | We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit.
Nous présentons un cas d’ablation assistée par IRM d’une tachycardie auriculaire chez un patient ayant déjà subi une ablation de fibrillation auriculaire. Une reconstruction 3D à partir de la résonance magnétique cardiaque retardée à haute résolution (RMC; modèle RMC) a été créée pour déceler les lésions et les lacunes de l’ablation précédente. De multiples lacunes autour de la veine pulmonaire droite ont été observées. La cartographie d’activation a révélé une réentrée à double bouche autour de chaque veine pulmonaire droite, ce qui confirme que le substrat décelé au moyen de la RMC retardée à haute résolution était essentiel au maintien de la tachycardie. La conversion en rythme sinusal a été obtenue après l’ablation à ce site. Le présent cas montre l’utilité de la caractérisation du substrat par RMC retardée à haute résolution pour compléter la cartographie d’activation de la tachycardie et définir plus précisément le circuit anatomique. |
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AbstractList | We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit. Abstract We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit. We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit.We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit. We present a case of a magnetic resonance imaging-assisted ablation of an atrial tachycardia in a patient with previous atrial fibrillation ablation. A 3-D reconstruction of the delayed-enhanced cardiac magnetic resonance (CMR; CMR model) was created to identify previous ablation lesions and gaps. Multiple gaps around right-sided pulmonary veins were observed. The activation map identified a dual-loop re-entry around both right-sided pulmonary veins, confirming that the substrate identified using delayed-enhanced CMR was critical to sustain the tachycardia. Ablation at this site converted to sinus rhythm. The present case shows the usefulness of delayed-enhanced CMR substrate characterization to complement activation mapping of the tachycardia and more accurately define the anatomical circuit. Nous présentons un cas d’ablation assistée par IRM d’une tachycardie auriculaire chez un patient ayant déjà subi une ablation de fibrillation auriculaire. Une reconstruction 3D à partir de la résonance magnétique cardiaque retardée à haute résolution (RMC; modèle RMC) a été créée pour déceler les lésions et les lacunes de l’ablation précédente. De multiples lacunes autour de la veine pulmonaire droite ont été observées. La cartographie d’activation a révélé une réentrée à double bouche autour de chaque veine pulmonaire droite, ce qui confirme que le substrat décelé au moyen de la RMC retardée à haute résolution était essentiel au maintien de la tachycardie. La conversion en rythme sinusal a été obtenue après l’ablation à ce site. Le présent cas montre l’utilité de la caractérisation du substrat par RMC retardée à haute résolution pour compléter la cartographie d’activation de la tachycardie et définir plus précisément le circuit anatomique. |
Author | Calvo, Mireia Arbelo, Elena Bisbal, Felipe Mont, Lluís Trucco, Emilce Berruezo, Antonio |
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Cites_doi | 10.1016/j.hrthm.2008.10.042 10.1016/j.jcmg.2014.01.014 10.1161/CIRCEP.113.000264 10.1161/01.CIR.0000141369.50476.D3 |
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Copyright | 2015 Canadian Cardiovascular Society Canadian Cardiovascular Society Copyright © 2015 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved. |
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References | Bisbal, Guiu, Cabanas (bib3) 2014; 7 Gerstenfeld, Callans, Dixit (bib1) 2004; 110 Fernández-Armenta, Berruezo, Andreu (bib4) 2013; 6 Badger, Oakes, Daccarett (bib2) 2009; 6 Badger (10.1016/j.cjca.2014.10.002_bib2) 2009; 6 Gerstenfeld (10.1016/j.cjca.2014.10.002_bib1) 2004; 110 Fernández-Armenta (10.1016/j.cjca.2014.10.002_bib4) 2013; 6 Bisbal (10.1016/j.cjca.2014.10.002_bib3) 2014; 7 |
References_xml | – volume: 110 start-page: 1351 year: 2004 end-page: 1357 ident: bib1 article-title: Mechanisms of organized left atrial tachycardias occurring after pulmonary vein isolation publication-title: Circulation – volume: 6 start-page: 528 year: 2013 end-page: 537 ident: bib4 article-title: Three-dimensional architecture of scar and conducting channels based on high resolution ce-CMR: insights for ventricular tachycardia ablation publication-title: Circ Arrhythm Electrophysiol – volume: 6 start-page: 161 year: 2009 end-page: 168 ident: bib2 article-title: Temporal left atrial lesion formation after ablation of atrial fibrillation publication-title: Heart Rhythm – volume: 7 start-page: 653 year: 2014 end-page: 663 ident: bib3 article-title: CMR-guided approach to localize and ablate gaps in repeat AF ablation procedure publication-title: JACC Cardiovasc Imaging – volume: 6 start-page: 161 year: 2009 ident: 10.1016/j.cjca.2014.10.002_bib2 article-title: Temporal left atrial lesion formation after ablation of atrial fibrillation publication-title: Heart Rhythm doi: 10.1016/j.hrthm.2008.10.042 – volume: 7 start-page: 653 year: 2014 ident: 10.1016/j.cjca.2014.10.002_bib3 article-title: CMR-guided approach to localize and ablate gaps in repeat AF ablation procedure publication-title: JACC Cardiovasc Imaging doi: 10.1016/j.jcmg.2014.01.014 – volume: 6 start-page: 528 year: 2013 ident: 10.1016/j.cjca.2014.10.002_bib4 article-title: Three-dimensional architecture of scar and conducting channels based on high resolution ce-CMR: insights for ventricular tachycardia ablation publication-title: Circ Arrhythm Electrophysiol doi: 10.1161/CIRCEP.113.000264 – volume: 110 start-page: 1351 year: 2004 ident: 10.1016/j.cjca.2014.10.002_bib1 article-title: Mechanisms of organized left atrial tachycardias occurring after pulmonary vein isolation publication-title: Circulation doi: 10.1161/01.CIR.0000141369.50476.D3 |
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SubjectTerms | Atrial Fibrillation - diagnosis Atrial Fibrillation - etiology Cardiovascular Catheter Ablation - methods Heart Atria - pathology Heart Conduction System - pathology Heart Conduction System - surgery Humans Imaging, Three-Dimensional Magnetic Resonance Imaging, Cine - methods Male Middle Aged Surgery, Computer-Assisted - methods Tachycardia, Supraventricular - diagnosis Tachycardia, Supraventricular - surgery |
Title | Left Atrial Tachycardia After Atrial Fibrillation Ablation: Can Magnetic Resonance Imaging Assist the Ablation? |
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