Atrial Arrhythmias After Surgical Maze
Findings During Catheter Ablation
Oussama M. Wazni, MD,
Walid Saliba, MD,
Tamer Fahmy, MD, PhD,
Dhanunjaya Lakkireddy, MD,
Sergio Thal, MD,
Mohamed Kanj, MD,
David O. Martin, MD, MPH,
J. David Burkhardt, MD,
Robert Schweikert, MD and
Andrea Natale, MD*
The Center for Atrial Fibrillation, The Cleveland Clinic Foundation, Cleveland, Ohio
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Figure 1 Surface electrocardiogram and intracardiac electrograms depicting atrial fibrillation and pulmonary vein-left atrium (PV-LA) reconnection. Note the pulmonary vein electrograms with high frequency potentials on the circular mapping catheter reflecting recurrence of conduction at the PV-LA junction. ABL = ablation catheter electrograms; aVF = atrioventricular; CS = coronary sinus catheter electrograms; c/w = consistent with; hRA = high right atrium catheter electrograms; Ls = circular mapping catheter electrograms.
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Figure 2 Twelve-lead surface electrocardiogram of a macro-reentrant atrial arrhythmia, which was mapped around the mitral annulus and terminated with an ablation line from the mitral annulus to a posterior wall scar. aVF = atrioventricular.
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Figure 3 CARTO (Biosense Webster, Diamond Bar, California) map of left atrial flutter (AFL): ablation at the isthmus between the 2 scars resulted in termination of AFL. The area of double potential/fractionated potential represents an area of slow conduction. MA = mitral annulus.
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