Objective: To report clinical findings and outcome in dogs and cats undergoing choledochotomy or primary repair of extrahepatic biliary duct rupture.
Methods: Retrospective study of dogs (n=7) and cats (n=2) that had choledochotomy or primary bile duct repair.
Results: Extrahepatic biliary obstruction was confirmed at surgery in all cases. The underlying cause in four dogs and both cats was choledocholithiasis, two dogs had gall bladder mucocoeles with associated bile duct rupture, and one dog had inspissated bile obstructing the bile duct secondary to gall bladder carcinoid tumour. Three dogs and both cats had choledochotomies performed to relieve extrahepatic biliary obstruction, and four dogs with bile duct rupture underwent primary repair of the defect. One dog with a bile duct rupture was re-explored four days postoperatively and had suffered dehiscence of the repair; this rupture was re-repaired. All animals were discharged from the hospital, and did not have clinical recurrence of extrahepatic biliary obstruction.
Clinical Significance: Choledochotomy and primary repair of extrahepatic biliary duct rupture were associated with low perioperative morbidity and no mortality in this small cohort of cases. These techniques are reasonable options either alone or in conjunction with other procedures when bile duct patency cannot be re-established by catheterisation or bile duct discontinuity exists.