Contact solvents for common bile duct stones. Study in an in vitro system

Mustapha Guitaoui, Anne‐Marie ‐M Montet, Tamás Takács, Jean‐Claude ‐C Montet

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3 Citations (Scopus)


Abstract: Cholesterol and brown pigment stones found in the common bile duct are often radiolucent and therefore indistinguishable. The purpose of this study was to define contact solvent systems able to dissolve both stone types. The influence of mucolytic agents on in vitro pigment stone dissolution was first determined. It was shown that dithioerythritol induced more rapid dissolution than N‐acetylcysteine. Alternating treatment with an aqueous alkaline solvent (pH=9.5), composed of sodium deoxycholate 50 mM, ethylenediaminetetraacetate 26 mM and dithioerythritol 50 mM, for 45 min, and an organic solvent methyl tert‐butyl ether/dimethyl sulfoxide (90/10) for 15 min, was more effective for bilirubin, cholesterol, and fatty acid solubilization (p<0.01) than using these solvents separately. The dissolution of brown stones was nearly completed within 9 h and that of mixed cholesterol stones was obtained within 3 h. We conclude that the alternating treatment described is very effective for the rapid in vitro dissolution of the two major stone types present in the bile ducts, and deserves further assessment in vivo.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
Issue number5
Publication statusPublished - Oct 1995



  • bile duct
  • bilirubin
  • cholesterol
  • dissolution
  • solvents
  • stones

ASJC Scopus subject areas

  • Hepatology

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