Successful Ethanol Infusion of Vein of Marshall With Bridge Collateral Using the Double-Balloon Technique Incorporating a Wedged Berman Catheter.

We describe a novel double-balloon technique incorporating a wedged Berman catheter to manage distal collateral drainage from the vein of Marshall (VOM) via a bridge collateral to the great cardiac vein, thereby enabling effective ethanol infusion. This technique may represent a viable alternative for anatomically challenging VOM ethanol infusion cases.