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. Author manuscript; available in PMC: 2010 Jul 27.
Published in final edited form as: J Cardiovasc Electrophysiol. 2010 Feb 1;21(7):766–772. doi: 10.1111/j.1540-8167.2009.01712.x

Figure 3. Fractionation maps before and after autonomic blockade.

Figure 3

Two typical examples demonstrating the difference in fractionation before and after pharmacological autonomic blockade. Panels A (before autonomic blockade) and B (after autonomic blockade) are from a patient with paroxysmal atrial fibrillation and a decrease in fractionation can be seen in panel B on the inferior left atrium (arrow).

Panels C (before autonomic blockade) and D (after autonomic blockade) are from a patient with persistent atrial fibrillation and a small decrease in fractionation can be seen in the anterior and posterior wall.