Fig. 3From: Comparison of the usefulness of endoscopic papillary large-balloon dilation with endoscopic sphincterotomy for large and multiple common bile duct stonesBiliary sphincter dilation with an EPLBD balloon until waist disappearance. After EPLBD balloon insertion in the papilla, the balloon was gradually pressurized until waist disappearance using a special device, and balloon dilation was maintained for 15 s thereafterBack to article page