Med. Weter. 81
full text
| ANNA ŁOSZCZYK, MATEUSZ WEREŻYŃSKI |
| Slow-flow vascular abnormalities of the portal vein in dogs. |
| Vascular abnormalities are described in animals, especially portosystemic shunts (PSS), which have been documented to be greater than 0.18%-1% in dogs (14, 36). Portal vein (PV) abnormalities are one of the most important vascular problems, as they have a serious clinical impact on dogs. These include PV anomalies and PV anomalous connections (4). In the first group, the literature describes congenital absence of the PV, PV hypoplasia and primary PV hypoplasia (4). The second includes high flow (hepatic arteriovenous malformation and arterioportal fistulas) and low flow abnormalities – congenital intrahepatic and extrahepatic shunts, acquired PSS, porto-portal collaterals in cases of PV obstruction and cavo-portal collaterals in chronic increased resistance of the caudal vena cava (4). In this paper, the authors discuss low-flow venous abnormalities associated with PV pathology and PV anomalies, which first requires updating the current knowledge. |
| Keywords: computed tomography, ultrasound, portosystemic shunts, vascular abnormalities, portal vein |