摘要
Objective: To determine the causes of choledochal di-latation in patients with obstructive jaundice.Methods: One hundred and sixty-four patients withobstructive jaundice were investigated by endoscopicretrograde cholangiopancreatography(ERCP), and pa-tients with choledochal dilatation (group Ⅰ, n=110)were compared with those without choledochal dilata-tion(group Ⅱ, n=54).Results: The causes of common bile duct dilatationwere choledocholith, juxtapapillary duodenal divertic-ula and congenital dilatation of the common bile duct.The distal common bile duct and its surroundings wereabnormal in 104(94.55%) of the 110 patients and in 13(24.08%) of the 54 patients (P【0.01). Juxtapapil-lary duodenal diverticulum accounted for 24.55% ingroup Ⅰ, and only in 9.26% in group Ⅱ (P【0.05).Post-cholecystectomy patients were 13.64% in groupⅠ, and only 5.56% in group Ⅱ.Conclusions: The abnormalities of the distal commonbile duct and its surroundings can usually be detectedas underlying causes of common bile duct dilatation.ERCP is necessary before cholecystectomy, since it isconsidered the "gold standard" for the diagnosis ofdistal common bile duct abnormalities.
