Clinical and biochemical comparative study of different types of common bile duct stones
Kumar, D.; Garg, P.K.; Tandon, R.K.
Indian Journal of Gastroenterology Official Journal of the Indian Society of Gastroenterology 20(5): 187-190
2001
ISSN/ISBN: 0254-8860 PMID: 11676330 Document Number: 538640
The chemical composition of common bile duct (CBD) stones may have significance with regard to the origin, clinical presentation and treatment. To study the chemical composition of CBD stones and compare different types of CBD stones. Consecutive patients with CBD stones seen over a 1-year period were studied prospectively. Their stones were analyzed for cholesterol, bilirubin and calcium contents. Of 74 patients with CBD stones, 42 had associated gall bladder (GB) stones (Group 1), 14 had post-cholecystectomy CBD stones (Group 2) and 18 had CBD stones with a stoneless GB in situ (Group 3). Of the 40 patients whose CBD stones were analyzed, 34 (85%; 18/19 in Group 1, 5/6 in Group 2 and 11/15 in Group 3) had cholesterol stones; the remaining 6 patients had pigment stones. Most CBD stones in northern Indian patients are cholesterol stones. Even in patients with isolated CBD stones (with stoneless GB in situ), three-quarters are cholesterol stones.