title: [Influence of age and biliary lithiasis on the diameter of the common bile duct].
abstract: OBJECTIVE
  To determine the influence of age and biliary lithiasis in the dilatation of the biliary ducts, a retrospective analysis was performed of the cholangiograms obtained by endoscopic retrograde cholangiopancreatography in patients presenting or with a past-history of biliary lithiasis and in controls.
  
  
  METHODS
  Among 165 patients, 113 had choledocolithiasis (53 had gallstones, 50 had been cholecystectomized and 10 had no gallstones), 35 had gallstones and 17 had been cholecystectomized for gallstones.
  
  
  RESULTS
  The diameter of the main biliary duct was significantly increased in the presence of common bile duct stones (14.0 +/- 4.9 mm), in cholecystectomized patients (11.7 +/- 4.3 mm), in presence of gallstones (9.2 +/- 2.4 mm). The diameter of the biliary ducts was significantly correlated with age in patients (r = 0.27; P = 0.001) and in controls (r = 0.31; P = 0.02). The different factors related to the dilatation of the main biliary duct were classified using a stepwise discriminant analysis: 1: choledocolithiasis, 2: age, 3: cholecystectomy, 4: gallstones.
  
  
  CONCLUSIONS
  There is a moderate but significant statistical correlation between age and the dilatation of the common bile duct, independent of the presence of biliary lithiasis.
authors.affiliation: Service d'Hépato-Gastroentérologie, Hôpital Sainte-Marguerite, Marseille.
authors.forename: M
authors.initials: M
authors.lastname: Barthet
authors.forename: S
authors.initials: S
authors.lastname: Spinoza
authors.forename: C
authors.initials: C
authors.lastname: Affriat
authors.forename: P
authors.initials: P
authors.lastname: Berthezene
authors.forename: J
authors.initials: J
authors.lastname: Sahel
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002760:Cholangiopancreatography, Endoscopic Retrograde; D002769:Cholelithiasis / Q000000981:diagnostic imaging / Q000473:pathology*; D003135:Common Bile Duct / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012044:Regression Analysis
vernacular_title: Influence de l'âge et de la lithiase biliaire sur le diamètre de la voie biliaire principale.