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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: J Am Coll Cardiol. 2011 Mar 1;57(9):1081–1092. doi: 10.1016/j.jacc.2010.09.066

Figure 7. Snapshots of wave propagation at the posterior left atrial wall (PLAW) during transitions to fragmentation.

Figure 7

(sequence 1–6): purple, unactivated regions; white, advancing activation. A. Reentrant circuit with a clockwise propagation around a pivoting point located to the right edge of the septo-pulmonary bundle. B. Activation breakthrough across a line of slow conduction, with activation of the PLAW in both superior and inferior directions, and final convergence on the anterior aspect of the right superior pulmonary vein antrum.