Endoscopic balloon dilatation (EBD) of the sphincter of Oddi may be an alternative to endoscopic sphincterotomy (ES), for the removal of bile duct stones.
In this randomized study, a team of physicians from London, England, compared the efficacy and complication rate of the 2 techniques.
The team assessed 202 patients with common bile duct stones.
These patients were followed up for 12 months.
|Overall duct clearance was 87%.|
The investigators found that overall duct clearance was 87%. This did not differ between the 2 groups.
The complication rates did not differ either. At 24 hours the rate was 7% in the EBD group and 3% in the ES group.
During follow-up the team found that complications were 12% in the EBD group and 15% in the ES group.
They determined that only the size of the largest stone was a predictor of success for either technique.
Dr Vlavianos's team concluded, "Endoscopic balloon dilatation offers no significant advantage over the well established technique of endoscopic sphincterotomy for the removal of bile duct stones".