Multiple bile duct stones: Comparison of two surgical techniques done at laparotomy

Biliary lithiasis is the most common surgical disease in Tunisia. Multiple bile duct stones are one of his most rare complications.It poses real problems with the best therapeutic approach.

To analyze the results of conventional surgery for multiple bile duct stones by comparing two techniques: The choledochotomy for stoneextraction followed by external biliary drainage and biliary-enteric anastomosis, to identify and to analyze the factors influencing the therapeuticchoice.

During study period spanning 16 years, 137 choledochotomy were made for multiple bile duct stones. These patients had either acholedochotomy with stone extraction and then drained through a T-tube or a biliary-enteric anastomosis.

Preoperative diagnosis of multiple bile duct stones has been made in 32.1 % of patients. Cholangiography was found in all casesmultiple bile duct stones and had demonstrated an association with intrahepatic stones in 18.2 %. External drainage by a Kehr drain wasperformed in 39.4 % and biliary-enteric anastomosis in 60.6 %. Univariate and multivariate analysis had identified three factors significantlyassociated with external drainage: age ≤ 65 years, bile duct diameter < 15 mm and the existence of a pronounced inflammatory reaction of thecholedochal wall. No factors had influenced the choice between different bilio-enteric anastomosis techniques. These three techniques did notdiffer from the post operative morbidity (p = 0.84) or mortality (p = 58).

Basing on the analysis of our series and the comparison with other series reported in the literature, we recommend biliary drainagewith a T-tube in young people under 65 years who have a little dilated bile duct, not exceeding 15mm. In patients aged over 65 years or thosewith a CBD dilated more than 15 mm, even with intrahepatic stones, in cases of distal bile duct stricture or periampullary diverticulum, biliaryentericanastomosis seems to be the safest technique.