Analysis of Factors Influencing the Long Term Outcome after Endoscopic Stenting for Benign Biliary Stricture

Korean J Gastrointest Endosc > Volume 32(1); 2006 > Article

Korean Journal of Gastrointestinal Endoscopy 2006;32(1): 21-26.

양성 담관 협착에서 스텐트 삽관의 장기적 효과에 영향을 미치는 요인 분석

이석영·이형석·윤원재·이준규·이광혁·황진혁*·정지봉^†·류지곤·김용태·윤용범

서울대학교 의과대학 내과학교실, 간연구소, *분당서울대학교병원, ^†보라매병원

Analysis of Factors Influencing the Long Term Outcome after Endoscopic Stenting for Benign Biliary Stricture

Seok Young Lee, M.D., Hyung Suk Lee, M.D., Won Jae Yoon, M.D., Jun Kyu Lee, M.D., Kwang Hyuck Lee, M.D., Jin-Hyeok Hwang, M.D.*, Ji Bong Jeong, M.D.^†, Ji Kon Ryu, M.D., Yong-Tae Kim, M.D. and Yong Bum Yoon, M.D.

Department of Internal Medicine and Liver Research Institute, *Seoul National University Bundang Hospital, Bundang, ^†Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea

Abstract

Background/Aims:
The problem with endoscopic management for benign biliary stricture is the occurrence of restenosis after removal of biliary stents. However the factors that influence the rate of restenosis have not yet been identified. The aim of this study was to identify the factors that affect patency of the bile duct after removal of an endoscopic stent for management of benign biliary stricture.
Methods:
The medical records and potential factors that influence biliary restenosis were analyzed in 19 patients with benign biliary stricture.
Results:
At the time of stent removal, successful stricture resolution was noted in 13 out of 19 patients. Among these 13 patients, good biliary patency, without restenosis, was observed in 10 patients during a mean follow-up of 24 months. The time interval, from biliary surgery to stricture, tended to be shorter in the group with good results compared to the group with poor results (6.2±3.3 months vs. 80.2±139.3 months respectively: p=0.07). Other factors did not affect the rate of restenosis after removal of the stent.
Conclusions:
The time interval, from biliary surgery to stricture, tends to influence restenosis after endoscopic management for benign biliary stricture. (Korean J Gastrointest Endosc 2006;32:21⁣26)

Key Words: Benign biliary stricture, Stent, Endoscopic biliary drainage

주요어: 양성 담관 협착, 스텐트, 내시경적 치료