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Card Electrophysiol Clin. 2015 Mar;7(1):157-63. doi: 10.1016/j.ccep.2014.11.009. Epub 2014 Dec 18.

Rotors in patients with persistent atrial fibrillation: case report of a left atrial appendage rotor identified by a novel computational mapping algorithm integrated into 3-dimensional mapping and termination of atrial fibrillation with ablation.

Author information

1
Division of Cardiac Electrophysiology, Mercy Heart & Vascular Center, St Louis, 625 South New Ballas Road, Suite 2030, St Louis, MO 63141, USA. Electronic address: tkurian76@gmail.com.
2
Division of Cardiac Electrophysiology, Mercy Heart & Vascular Center, St Louis, 625 South New Ballas Road, Suite 2030, St Louis, MO 63141, USA.
3
CardioNXT, Inc, 10955 Westmoor Drive, Westminster, CO 80021, USA.
4
Department of Biomedical Engineering, Washington University in St Louis, 360 Whitaker Hall, 1 Brookings Drive, St Louis, MO 63130, USA.

Abstract

Recent clinical trials using panoramic mapping techniques have shown success in targeting rotors and focal impulses in atrial fibrillation (AF). Ablations directed toward these organized sources improve outcomes in AF. The left atrial appendage (LAA) has been suspected as a possible extrapulmonary source of AF, and ablation within the LAA or electrical isolation of the LAA improves outcomes in certain cases. This case highlights a unique example of panoramic imaging created with a computational mapping algorithm integrated in 3-dimensional mapping, which identified rotors within the LAA. Furthermore, ablations performed near an identified rotor core within the LAA terminated AF.

KEYWORDS:

Ablation; Left atrial appendage; Panoramic AF mapping; Persistent atrial fibrillation

PMID:
25784031
DOI:
10.1016/j.ccep.2014.11.009
[Indexed for MEDLINE]

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