New-onset postoperative atrial fibrillation: A riddle wrapped in a mystery inside an enigma  Adam E. Saltman, MD, PhD  The Journal of Thoracic and Cardiovascular Surgery  Volume 127, Issue 2, Pages 311-313 (February 2004) DOI: 10.1016/j.jtcvs.2003.04.004

Figure 1 Reentry in the end strand of a Purkinje fiber. The Journal of Thoracic and Cardiovascular Surgery 2004 127, 311-313DOI: (10.1016/j.jtcvs.2003.04.004)

Figure 2 Normal atrial muscle demonstrating multiple branches and joinings. The Journal of Thoracic and Cardiovascular Surgery 2004 127, 311-313DOI: (10.1016/j.jtcvs.2003.04.004)

Figure 3 Arachidonic acid reversibly decreases conduction along the fiber axis. The Journal of Thoracic and Cardiovascular Surgery 2004 127, 311-313DOI: (10.1016/j.jtcvs.2003.04.004)