Endoscopic papillary balloon dilation and endoscopic sphincterotomy for bile duct stones: long-term outcomes in a prospective randomized controlled trial - 24/08/11
Reprint requests: Shouichi Tanaka, Department of Gastroenterology, Iwakuni National Hospital, 2-5-1 Kuroiso-cho, Iwakuni 740-0041, Japan.Iwakuni City, Japan
Abstract |
Background |
Little is known about the long-term outcome of endoscopic papillary balloon dilation for removal of bile duct stones. A randomized trial that compared long-term outcomes after endoscopic papillary balloon dilation and endoscopic sphincterotomy was conducted.
Methods |
Thirty-two patients with bile duct stones were randomized to endoscopic papillary balloon dilation or endoscopic sphincterotomy, with 16 patients in each group. Endoscopic papillary balloon dilation was performed by using an 8-mm-diameter balloon; endoscopic sphincterotomy was performed in the standard manner. The success rates for stone removal, as well as the frequency and types of early (<15 days), mid-term (<1 year), and long-term (1-6 years) post-procedure complications were evaluated.
Results |
The success rates for stone removal and early complication rates were similar for both groups. The frequency of stone recurrence was approximately 4-fold higher in the endoscopic papillary balloon dilation group (25%) vs. the endoscopic sphincterotomy group (6.3%) at mid-term evaluation. However, over the long term, Kaplan-Meier estimated probability of stone recurrence tended to be higher in the endoscopic sphincterotomy group vs. the endoscopic papillary balloon dilation group; recurrent stones were found in, respectively, 26.7% vs. 6.3%. Complications occurred in 7 patients in each group.
Conclusions |
Long-term outcome of endoscopic papillary balloon dilation for bile duct stone removal is satisfactory, provided that consideration is given to recurrence of stones by early follow-up evaluation.
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Vol 59 - N° 6
P. 614-618 - mai 2004 Retour au numéro
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