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Relevance of electrical connectivity between the coronary sinus and the left atrial appendage for the intentional electrical isolation of the left atrial.

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Presentation on theme: "Relevance of electrical connectivity between the coronary sinus and the left atrial appendage for the intentional electrical isolation of the left atrial."— Presentation transcript:

1 Relevance of electrical connectivity between the coronary sinus and the left atrial appendage for the intentional electrical isolation of the left atrial appendage in treating persistent atrial fibrillation: Insights from the LEIO-AF study  Mokhtar Ibrahim, MRCP, PhD, Sandeep Panikker, MRCP, PhD, Eric Lim, MRCP, Vias Markides, FRCP, MD, Tom Wong, FRCP, MD, FHRS  HeartRhythm Case Reports  Volume 4, Issue 9, Pages (September 2018) DOI: /j.hrcr Copyright © Terms and Conditions

2 Figure 1 Case 1. A: Contrast was used to define the LAA. B: The Lasso catheter is situated at the LAA os. C: Circumferential ablation was performed along the atrial aspect of the LAA (CARTO anatomical shell, left lateral view). LAA os = left atrial appendage ostium. HeartRhythm Case Reports 2018 4, DOI: ( /j.hrcr ) Copyright © Terms and Conditions

3 Figure 2 Case 1. A: Recordings after pulmonary vein isolation and linear ablation. B: Recording after initial endocardial LAA ablation. C, E: Ablation within atrial branch of the CS (white arrow). D: Isolation of the LAA. CS = coronary sinus; LAA = left atrial appendage; LAO = left anterior oblique. HeartRhythm Case Reports 2018 4, DOI: ( /j.hrcr ) Copyright © Terms and Conditions

4 Figure 3 Case 2. A: Recordings after pulmonary vein isolation and linear ablation. B: Recording after initial endocardial LAA ablation. C: Isolation was not durable (reconnection). D, E: Radiofrequency delivery in the mid-distal CS (panel E, white arrow) led to the isolation of the LAA (panel D). CS = coronary sinus; LAA = left atrial appendage; LAO = left anterior oblique. HeartRhythm Case Reports 2018 4, DOI: ( /j.hrcr ) Copyright © Terms and Conditions

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