Figure 5. Location of rotors (pink dots) and sites with spatiotemporal dispersion and non-continuous fragmented EGMs (green dots). 11 Rotors (42%) were related to the antra of the pulmonary veins, especially the anterior aspect of the right superior pulmonary vein (n = 6) and the ridge between the left atrial appendage and the left superior pulmonary vein (n = 4). CS = coronary sinus; FO = foramen ovale; IVC = inferior vena cava; LIPV = left inferior pulmonary vein; LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein; SVC = superior vena cava.