Liver Cirrhosis Flashcards
what is the classic sign of cirrhosis?
regenerative nodules (hence bumpy), fibrotic tissue and collagen
what combine to make the sinusoid?
portal vein and hepatic artery
what is in the perisinusoidal space?
stellate cells, which usually store vitamin A
when hepatocytes are injured they signal stellate cells to secrete?
TGF B, which produces collagen
what does build up of collagen cause?
increased pressure in sinusoid- portal hypertension
complications of portal hypertension?
congestive splenomegaly
ascites
portosystemic shunt
renal vasoconstriction- hepatorenal failure
toxins in brain hepatic encephalopathy
gynaecomastia
spider angiomata
palmar erythema
jaundice
hypoalbuminaemia
coagualtion issues
what toxic mainly causes hepatic encephalopathy?
ammonia- hence asterixis possibly coma
oestrogen is converted to metabolites in liver, what may be the complications of it not?
palmar erythema, gynaecomastia and spider angiomata
symptoms of cirrhosis?
asymptomate, weight loss, weakness fatigue, jaundice and pruritus, ascites, confusion and easy bruising
gold standard diagnosis of cirrhosis?
liver biopsy
what do you find in lab findings?
elevated bilirubin, and enzymes AST more than ALT and low platelets
treatment of cirrhosis?
treat underlying cause (alcohol or antiviral treatment)
transplant
causes of cirrhosis?
alcohol, viral hep b and c and non alcoholic fatty liver disease
other ways to diagnose?
transient elastography scan (Hep C over 50 units alcohol men over 35 female)
or acoustic radiation force impulse imaging
for NAFLD NICE recommend using?
enhanced liver fibrosis score
further investigations?
upper endoscopy to check for varices with new diagnosis for cirrhosis and liver US every 6 months
rarer causes of liver cirrhosis?
Autoimmune hepatitis
Primary biliary cirrhosis
Haemochromatosis
Wilsons Disease
Alpha-1 antitrypsin deficiency
Cystic fibrosis
Drugs (e.g. amiodarone, methotrexate, sodium valproate)
what is a tumour marker for hepatocellular carcinoma?
alpha fetoprotein every 6 months
what is first line investigation for cirrhosis?
enhanced liver fibrosis blood test for non-alcoholic fatty liver disease
what does ELF blood test contain?
markers HA, PIIINP and TIMP-1
what level indicated severe/ moderate fibrosis?
7.7 and 9.8
cirrhosis on Ultrasound?
nodularity, corkscrew appearance of arteries, enlarged portal vein with reduced flow, ascites , splenomegaly
what does child-pugh score of cirrhosis include?
bilirubin, albumin, INR, ascites and encephalopathy
MELD score is for?
compensated cirrhosis every 6 months- creatnine, bilirubin, INR and sodium and dialysis