Key result
Ethanol infusion into the vein of Marshall organized persistent atrial fibrillation into atrial tachycardia, which was successfully terminated by adjunctive radiofrequency ablation.
Why the study?
Does ethanol infusion into the vein of Marshall terminate persistent atrial fibrillation in a patient undergoing catheter ablation?
Case Report (n=1)
No
Does ethanol infusion into the vein of Marshall terminate persistent atrial fibrillation in a patient undergoing catheter ablation?
Ethanol infusion into the vein of Marshall can effectively organize persistent atrial fibrillation to atrial tachycardia and facilitate termination when used as an adjunct to ablation.
May aid organization of persistent AF for adjunctive ablation termination; hypothesis-generating case report leaves efficacy open to randomized confirmation.
We report the case of a 64-year-old male with persistent atrial fibrillation (AF) terminated by ethanol infusion into vein of Marshall as add-on therapy. Three-dimensional automated complex fractionated atrial electrogram (CFAE) during AF revealed clustering of CFAE at perimitral isthmus (PMI) and its unipolar mapping showed rotor-like activation, which was suggested to be critical in the perpetuation of AF. AF was organized to atrial tachycardia (AT) by 100% ethanol infusion in the vein of Marshall. Adjunctive radiofrequency ablation at PMI successfully terminated AT and led to bidirectional block of PMI.
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Choi et al. (2015) conducted a case report in Persistent atrial fibrillation (n=1). Ethanol infusion into vein of Marshall was evaluated on Termination of atrial fibrillation. Ethanol infusion into the vein of Marshall organized persistent atrial fibrillation into atrial tachycardia, which was successfully terminated by adjunctive radiofrequency ablation.
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