5+ 6. shunts Flashcards
left divisional shunt
left:
left medial lobe
left lateral lobe
central:
right medial and quadrate
right:
right lateral lobe and caudate process of caudate lobe
right divisional shunt
left:
left medial lobe
left lateral lobe
central:
right medial and quadrate
right:
right lateral lobe and caudate process of caudate lobe
central divisional shunt
left:
left medial lobe
left lateral lobe
central:
right medial and quadrate
right:
right lateral lobe and caudate process of caudate lobe
— ligament connect liver to diaphragm
right and Left triangular ligament
— ligament connect liver to foramen vena cava
coronary ligament
— ligament attaches to liver to the diaphragm and body wall
falciform
— attaches caudate lobe of liver to cranial pole of — kidney
hepatorenal ligament
Right
blood supply for hepatic artery is from
aorta - celiac - hepatic- hepatic branches
hepatic artery brings — % of blood flow to liver
20-25
* at low BP can increase to 60% to supply O2 to liver
aorta-celiac-hepatic-branches of hepatic
blood supply to portal vein in dogs vs cats
both:
- cranial and caudal mesenteric veins
- gastrosplenic veins
Dogs only: gastroduodenal vein!
portal vein supply —% of blood flow to liver
75-80
dogs have gastroduodenal vein
what does liver do
- Metabolism of lipids, carbs, proteins, vitamins
- hemostasis- coag factor
- protein production
- immunologic functions
- detox
PT and PTT for shunt pts
may be longer, but clinical bleeding not normal
- may resolve 6 weeks post sx
what bloodwork for shunts in dogs
- low albumin, globulin, cholestrol, glucose
- normal or elevated liver enzymes
- low BUN/creat
- low coags= high PT, PTT
- high ammonia (liver incharge of ammonia to urea)= low urea
(ABC glucose)
cats: low Creat, BUN
slight increase ALT,ALP
most common cause of intrahepatic shunt
patent ductus venosus (between aorta and liver)