Fig.12 A: Electroanatomical map before ethanol infusion of vein of Marshall (VOM) showing isolated pulmonary veins. B: VOM originating from coronary sinus (CS) on right anterior oblique fluoroscopic view C: Wire placement D: VOM visualization E: Ethanol injection into VOM F: Electroanatomical map of left atrium post VOM ethanol infusion G: VENUS trial in favor of VOM ethanol infusion(118).