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Common bile duct diameters after endoscopic sphincterotomy in patients with common bile duct stones: ultrasonographic
M Karincaoglu1, B Yildirim, Y Seckin
1Inönü University Faculty of Medicine, Turgut Ozal Medical Center, Department of Internal Medicine, Division of Gastroenterology, 44069 Malatya, Turkey.
Background:
One of the most reliable, frequently used imaging techniques in cholestasis is ultrasonography (US) for the diagnosis of common bile duct (CBD) stones.
Methods:
In this study, changes in diameters of CBD were determined ultrasonographically before and after endoscopic sphincterotomy (ES) in 46 patients with stone-induced dilated CBD.
Results:
There was a significant decrease in CBD diameter measured 1 week after ES and extraction of stone (p < 0.001). In 87% of cases, the difference was more significantly pronounced during the first 24 h of ES. The mean CBD diameters on US were 13.70 +/- 3.00 mm (10-21 mm) before and 9.13 +/- 2.90 mm (4.2-18 mm) 24 h after endoscopic treatment (p < 0.001). After ES, six patients (13%) with inadequate decreases in CBD diameters were found to have residual stones.
Conclusion:
US can show residual stones in the CBD with the same efficacy as endoscopic retrograde cholangiopancreatography.
