作者
Julien Seitz, Jerome Horvilleur, Jerome Lacotte, DARACH OH‐ICI, Yamina Mouhoub, Alice Maltret, Fiorella Salerno, Darren Mylotte, Mehran Monchi, Jerome Garot
发表日期
2011/10/1
期刊
Pacing and Clinical Electrophysiology
卷号
34
期号
10
页码范围
1267-1277
出版商
Blackwell Publishing Inc
简介
Background: Studies have shown that the presence of left atrial (LA) fibrosis can be assessed by LA delayed‐enhancement cardiac magnetic resonance (LA DE‐CMR) and may be predictive of outcome after ablation for atrial fibrillation (AF). We sought to test the hypothesis that the amount of LA fibrosis evaluated by DE‐CMR correlates with the difficulty of complex fractionated atrial electrograms (CFAE) ablation.
Methods: Twenty‐two consecutive patients (86.4% nonparoxysmal AF) underwent substrate CFAE radiofrequency (RF) ablation (±Pulmonary veins isolation) with AF termination as the endpoint. LA DE‐CMR was performed prior to ablation. A global index of DE was defined by an average of six LA segmental scores based on a four‐grade scale (no enhancement to maximum enhancement). Time between first RF application and AF termination, and RF duration until AF …
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J Seitz, J Horvilleur, J Lacotte, D OH‐ICI, Y Mouhoub… - Pacing and clinical electrophysiology, 2011