[Indicators of the lithogenic properties of the bile: methods of their evaluation, clinical availability and informative value].

: Duodenal bile taken by gastroduodenal intubation of patients with chronic calculous cholecystitis with intact gallbladder performance was investigated as was the bile taken in those with chronic acalculous cholecystitis or in those without clinical signs of cholecystitis and concurrent diseases. The bile was investigated for cholesterol, bile acids and lecithin levels. All the parameters obtained were used for computation of lithogeny parameters: Swell, Admirand-Small, Metzger, Thomas, Andrews and cholesterol-lecithin ratio. The study performed indicated that Swell's parameters of lithogeny and cholesterol-lecithin ratio displayed more precisely lithogeny of the bile, and could be determined more easily than other parameters.