Telescopic straight ileo-anal anastomosis in dogs.

Purpose: To study outcomes and functional results of a telescopic straight ileo-anal anastomosis.

Methods: Thirty-six mongrel dogs were submitted to total proctocolectomy and telescopic straight ileo-anal anastomosis (ileal mucosa-submucosa pulled-through the rectal cuff). They were divided in 3 groups, sacrificed after one, two or eight weeks after the initial procedure.

[Surgical treatment of severe acute pancreatitis].

Necrosectomy and drainage, mostly surgically performed, are indicated in front of superinfection of pancreatic necrosis proven by percutaneous bacteriological puncture or when the clinical status of the patient deteriorates despite maximal intensive care, without proven infection of necrosis. Early necrosectomy (within the first two or three weeks) carries a risk of postoperative mortality around 50%. To delay further the necrosectomy is advisable when it is compatible with patient's status.

Effects of structural injure in the bile bacterial contamination after balloon transduodenal sphincteroplasty (papillary dilation) in dogs.

Purpose: To evaluate, in dogs, the biliary sphincter subjected to dilation by hydrostatic balloon by the point of view of structural alterations of the papilla and the biochemestry and bacterial contamination of the bile.

Methods: Twenty dogs were submitted to laparotomy, duodenotomy, and enlargement of the major duodenal papilla- GA(n=10) - with balloon of 8mm inflated with pressure of 0,5 atm, during 2 minutes or to the sham procedure - GB(n=10). Blood samples collected on times t(0 day), t(7 days) and t(28 days) were subjected to dosages of alkaline phosphatase (ALP) and gamma-glutamyltransferase (GGT) for cholestasis evaluation.

Manometric and radiographic evaluation of transduodenal sphincteroplasty (papillary dilation) in dogs.

Purpose: To evaluate, in dogs, the functions of biliary sphincter subjected to dilation hydrostatic balloon by the point of view of the radiographic and manometric alterations.

Methods: Twenty dogs were submitted to laparotomy, duodenotomy, and enlargement of the major duodenal papilla- GA(n=10) - with balloon of 8mm inflated with pressure of 0,5atm, during 2 minutes or to the sham procedure - GB(n=10). The computerized manometry and the cholangiography were done before and immediately after the initial procedure, one and four weeks after the dilation or the sham.