24. chronic hepatitis, familial liver diseases Flashcards
what to mention
chronic hepatitis: what, patho, background
familial CH: types, breeds
treatment
what is chronic hepatitis
a group of inflammatory-necrotizing liver diseases
mononuclear or mixed infiltration, periportal necrosis, fibrosis, clinical/ biochemical hepatocellular dysfunction
no improvement for 4-6 weeks
end stage = liver chirrosis
chronic hepatitis pathophysiology
poorly understood
immune mediated?
copper - cause or consequence
virus - infective cause?
chronic hepatitis background
- familiar: Bedlington, Dalmatian, labrador, doberman, WHWT
2: infective: infectious canine hepatitis, leptospirosis, helicobacter
3- drug: anti epileptic, carprofen
clinical signs of chronic hepatitis
lab
apper if >75% of liver is damaged
uterus, ascites, wavy GI signs, PUPD
ALT! BA, albumin
familial chronic hepatitis types
primary: increased cu through life, bedlington, Labrador, Dalmatian
secondary: increased cu but not throughout life
cu storage disease in bedlington terrier what is it
progressive cu accumulation due to failed normal hepatobiliary excretion - low bile cu level
homoxygote and heterozygote types
cu storage disease in bedlington terrier heterozygote
transient, normalizes at around 1 year
cu storage disease in bedlington terrier homozygote
1-2 years - clinically normal but affected
young adult: acute fulminant hepatic necrosis
young middle aged: very high ALT
old middle aged: chronic hepatitis, increased ALT
cu storage disease in Dalmatian
primary cu disease acute onset, rapid progression fibrosis, necrosis icterus, PU/PD, dehydration highly increased ALT AST, ALP increased
cu storage disease in Labrador
primary disease - female
hepatocellular apoptosis, necrosis
cu storage disease in Doberman pincher
not primary
chronic hepatitis and chirrosis
doberman get it from less cu than bedlington
progressive anorexia, weight loss, vomit, ascites, icterus, PUPD
increased ALT, ALP, BR
decreased albumin
cu storage disease in WHWTerrier
early: focal no signs
later: ictreus, vomit, anorexia
increased ALT, Br,
decreased albumin
treatment of cobber increase
normal level is below 400 ppm cu-chelator: penicillamine Zn-salt: decrease cu absorption from intestines NEVER MIX CHELATOR AND ZN antioxidant: SAMe, Evit, silimaryne low cu diet
treatment of chronic hepatitis
prednisolone <3
+ cyclosporine or azathioprine if not enough
UDCA: hepatoprotect, antiinflam, antifibrotic
antifibrotic drugs: d penicillamine, vit E, colchicine