Transportal approach for attenuating intrahepatic portosystemic shunts in dogs

Geraldine B Hunt, C. R. Bellenger, M. R B Pearson

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A novel surgical approach, using portal venotomy during total hepatic vascular occlusion, was used to locate and attenuate congenital intrahepatic portosystemic shunts in nine dogs. Shunt location was consistent with a persistent ductus venosus in only two dogs. In the remaining seven dogs the shunts were window-like orifices arising from either the left (two dogs) or right portal vein branch (five dogs) and communicating with the ipsilateral hepatic vein or caudal vena cava. The transportal approach using total hepatic vascular occlusion consistently provided good access to the portosystemic shunts, including those with window-like communications. A 7 to 16 minute period of total vascular occlusion was well-tolerated hemodynamically, with few intraoperative complications. Intrahepatic shunts were successfully attenuated in eight dogs, while one dog with portal atresia was euthanatized. The postoperative course was complicated by high protein pulmonary edema (one dog), an encapsulated biliary pseudocyst (one dog) and uncontrollable hemorrhage caused by an uncharacterized coagulopathy (one dog). Three dogs required a second operation to further attenuate their shunts. The clinical condition of all seven surviving dogs was improved after surgery.

Original languageEnglish (US)
Pages (from-to)300-308
Number of pages9
JournalVeterinary Surgery
Volume25
Issue number4
StatePublished - Jul 1996
Externally publishedYes

Fingerprint

Surgical Portasystemic Shunt
Dogs
dogs
blood vessels
Blood Vessels
liver
vena cava
Venae Cavae
portal vein
Hepatic Veins
Liver
Intraoperative Complications
abnormal development
Pulmonary Edema
Portal Vein
edema
animal communication
hemorrhage

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Transportal approach for attenuating intrahepatic portosystemic shunts in dogs. / Hunt, Geraldine B; Bellenger, C. R.; Pearson, M. R B.

In: Veterinary Surgery, Vol. 25, No. 4, 07.1996, p. 300-308.

Research output: Contribution to journalArticle

Hunt, GB, Bellenger, CR & Pearson, MRB 1996, 'Transportal approach for attenuating intrahepatic portosystemic shunts in dogs', Veterinary Surgery, vol. 25, no. 4, pp. 300-308.
Hunt, Geraldine B ; Bellenger, C. R. ; Pearson, M. R B. / Transportal approach for attenuating intrahepatic portosystemic shunts in dogs. In: Veterinary Surgery. 1996 ; Vol. 25, No. 4. pp. 300-308.
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