Extracorporeal Shockwave Lithotripsy for Bile Duct Stone: A Single Center Experience

Introduction: Most cases of bile duct stones are usually treated using Endoscopic Retrograde Cholangiopancreatography (ERCP). In difficult cases, surgery is not the only option. Extracorporeal Shockwave Lithotripsy (ESWL) can be the alternative management. ESWL uses electromagnetic/electrohydraulic energy to disintegrated calculi. Study shows that there is no difference between the success rate of ESWL and intracorporeal lithotripsy using Electrohydraulic Lithotripsy (EHL). Aim: The aims of this study is to share our experience in bile duct stone management using ESWL. Method: This study was done retrospectively by reviewing registry data of bile duct stone patients that had undergone ESWL procedure on January 2014-December 2016 in ESWL Clinic, Department of Urology, Cipto Mangunkusumo Hospital. The patients were analyzed for age, gender, Body-Mass-Index (BMI), power energy level, and the number of shocks per session. SPSS version 16.0 (SPSS, Chicago, IL, USA) was used for data analysis. Result: A total of 18 patients with mean age 58 (+/- 13.47) years old. Female-to-male ratio was 4:5. Mean BMI was 21.65 (+/- 3.19) Kg/m(2). All stones were located in common bile duct (CBD). All of the female patients (100%) were > 40 years old. Three out of eight female patients (37.5%) had BMI > 23 Kg/m(2). Energy level 18 (16-20) was used. The number of shock waves given was 4750 (4000-5000). Second session was required in 6 (33.3%) patients. Conclusion: ESWL is a favourable management in common bile duct stone cases.