American Journal of Roentgenology, Vol 171, 1387-1389, Copyright © 1998 by American Roentgen Ray Society

ARTICLES

Percutaneous transhepatic lithotripsy using a choledochoscope: long- term follow-up in 14 patients

N Hayashi, T Sakai, T Yamamoto, R Inagaki and Y Ishii
Department of Radiology, Fukui Medical University School of Medicine, Japan.

OBJECTIVE: The purpose of our study was to estimate the long-term prognosis of patients with bile duct stones who undergo electrohydraulic lithotripsy guided by choledochoscopy. SUBJECTS AND METHODS: Since 1987, at our institution, 14 patients with bile duct stones have been treated using percutaneous electrohydraulic lithotripsy guided by choledochoscopy. The procedure was performed 5-7 days after biliary drainage using a 5-mm choledochoscope placed through an 18- to 20-French sheath. All patients underwent follow-up CT, sonography, or both every 6-12 months after treatment. RESULTS: No complications occurred in the 14 patients who underwent treatment. During a mean follow-up period of 4.8 years (range, 2-9 years), two (14%) of the 14 patients developed recurrent common bile duct stones, and another two (14%) developed recurrent small intrahepatic stones; all patients remained asymptomatic. CONCLUSION: Percutaneous electrohydraulic lithotripsy can be safely performed using a 5-mm choledochoscope. Recurrent calculi may be seen in 28% of patients.
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