Percutaneous balloon dilation with or without placement of an external biliary drain is a nonoperative alternative method for treating benign bilioenteric anastomotic strictures. Although this procedure has a high technical success rate, outcomes are less optimal when attempting to dilate refractory tight strictures. For the stricture, cutting balloon can be an option. We present four patients with benign bilioenteric anastomotic strictures refractory to conventional balloon dilation. To the patients, a peripheral cutting balloon over-the-wire system was inflated, following subsequent conventional non-compliant balloon dilation. After the balloon dilation treatment, an external drainage catheter was placed through the stricture site and maintained for up to 30 days. Technical and end-treatment success was achieved in all four patients. In conclusion, the use of cutting balloon dilation may appear to be a safe and effective alternative method of treatment in patients with benign bilioenteric anastomotic strictures refractory to conventional balloon dilation.

INTRODUCTION
CASE
    1. Technical review
DISCUSSION
요 약
ACKNOWLEDGMENTS
ORCID

• 이종현(부산대학교 의과대학 내과학교실, 부산대학교병원 의생명연구원) | Jong Hyun Lee (Department of Internal Medicine, Pusan National University School of Medicine, Busan; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea)
• 김동욱(부산대학교 의과대학 내과학교실, 부산대학교병원 의생명연구원) | Dong Uk Kim (Department of Internal Medicine, Pusan National University School of Medicine, Busan; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea) Corresponding author
• 한성용(부산대학교 의과대학 내과학교실) | Sung Yong Han (Department of Internal Medicine, Pusan National University School of Medicine, Busan)
• 김광하(부산대학교 의과대학 내과학교실) | Gwang Ha Kim (Department of Internal Medicine, Pusan National University School of Medicine, Busan)
• 서형일(부산대학교 의과대학 내과학교실) | Hyung Il Seo (Department of Internal Medicine, Pusan National University School of Medicine, Busan)
• 홍승백(부산대학교 의과대학 내과학교실) | Seung Baek Hong (Department of Internal Medicine, Pusan National University School of Medicine, Busan)
• 김석(부산대학교 의과대학 내과학교실) | Suk Kim (Department of Internal Medicine, Pusan National University School of Medicine, Busan)
• 김창원(부산대학교 의과대학 내과학교실) | Chang Won Kim (Department of Internal Medicine, Pusan National University School of Medicine, Busan)