Abstract

Objective To explore the changes of the pressure of sphincter of Oddi(SO)in postoperative patients with cholangiolithiasis.Methods Sixty cases with multiple biliary calculi operation (recurrent cholangiolithiasis group),80 cases with biliary calculi operation at first time(cholangiolithiasis group)and 9 cases with external injuries of pancreas or liver(control group),who were examined in order to identify common bile duct pressure(CBDP),SO basal pressure(SOBP),amplitude of SO contractions (SOCA),frequency of SO contractions(SOF),then comparing the difference of statistics among the three groups.Results CBDP,SOBP,SOCA,SOF in recurrent cholangiolithiasis group and cholangiolithiasis group were significantly higher than those in control group[(13.78 ±9.91),(12.65 ±7.64)mm Hg(1mm Hg =0.133 kPa)vs.(12.54 ± 2.35)mm Hg,(15.27 ± 9.15),(14.89 ± 7.87)mm Hg vs.(13.63 ± 3.27)mm Hg,(106.30 ± 54.70),(98.39 ±38.29)mm Hg vs.(87.65 ±56.38)mm Hg,(6.91 ± 1.92),(6.25 ±2.17)times/min vs.(5.26 ± 2.11)times/min](P ＜ 0.05),but there was no significant difference between recurrent cholangiolithiasis group and cholangiolithiasis group(P ＞ 0.05).Conclusion SO dysfunction resides in the postoperative patients with cholangiolithiasis,and it is possible related with the formation and/or recurrence of cholangiolithiasis. Key words: Cholelithiasis; Sphincter of Oddi; Manometry

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