Abstract
Background Left atrial (LA) radiofrequency (RF) ablation has become routine treatment for atrial fibrillation (AF) but still suffers from AF recurrence requiring a repeat procedure. LA-RF ablation success rates vary between 53% and 85%. Delayed-enhancement Cardiac Magnetic Resonance (DE-CMR) can be used to noninvasively visualize LA hyperenhancement (scar). We have utilized DECMR to quantify LA scar extent post LA-RF-ablation and related this measure to AF recurrence.
Highlights
Left atrial (LA) radiofrequency (RF) ablation has become routine treatment for atrial fibrillation (AF) but still suffers from AF recurrence requiring a repeat procedure
Left atrial scar burden determined by delayed enhancement cardiac magnetic resonance at post radiofrequency ablation: association with atrial fibrillation recurrence
There was a trend toward a larger LA-volume in the AF-recurrence group (128.49±44.0 ml vs. 96.0±38.5 ml; p=0.06, see Table 1)
Summary
Left atrial scar burden determined by delayed enhancement cardiac magnetic resonance at post radiofrequency ablation: association with atrial fibrillation recurrence. Gerd Brunner1,2*, Lucien Abboud, Kamran A Shaikh, Amish S Dave, Joel Morrisett, William A Zoghbi, Miguel Valderrábano, Dipan J Shah
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