Liver Disease Flashcards
What is the definition of cirrhosis of the liver?
- end stage liver disease
- diffuse process with fibrosis and nodule formation
Describe a typical history of someone with liver disease
Symptoms:
- jaundice, dark urine + light stool with itch
- ankle swelling, abdo swelling, RUQ pain
- nausea/ vomiting, fever, GI symptoms
PMH: previous jaundice, cholecystectomy, T2DM, obesity, thyroid disease, other autoimmune disease
DH: new medications, OTC, herbal
SH: drug use, alcohol, sexual partner(s)
FH: jaundice, liver tumours, haemochromatosis
What is raised in hepatic causes of liver disease?
- AST
- ALT
- bilirubin
- GGT
What is raised in cholestatic causes of liver disease?
- ALP
- bilirubin
- GGT
What are the best measures of liver function?
- albumin
- bilirubin
- prothrombin time
What are the causes of acute liver injury?
- acute viral hepatitis
- autoimmune liver disease (hepatitis)
- paracetamol toxicity (‘therapeutic’ doses can be toxic if underweight/alcohol misuse/malnutrition)
- drug induced
What investigation would you do if you suspected liver disease?
Ultrasound
What are the causes of acute cholestasis/cholestatic hepatitis?
- extrahepatic biliary obstruction
- drug injury
What are the causes of chronic liver disease?
- chronic viral hepatitis (HBV, HCV)
- autoimmune liver disease (hepatitis, primary biliary cholangitis, primary sclerosing cholangitis)
- metabolic liver disease (haemochromatosis, wilson’s disease, alpha-1 anti-trypsin deficiency)
- fatty liver (alcoholic/non-alcoholic)
What are the investigation results for autoimmune hepatitis?
- raised AST and ALT
- positive ANA, SMA, anti-liver kidney microsomal antibodies
- raised IgG levels
What is the treatment for autoimmune hepatitis?
- corticosteroids (prednisolone, budesonide)
- azathioprine, mycophenolate
What are some associations with primary biliary cholangitis?
- Sjorgren’s syndrome
- systemic sclerosis
- RA
- lupus
- hypothyroidism
- coeliacs disease
What are the investigation results and treatment for primary biliary cholangitis?
- elevated GGT and ALP (early disease)
- elevated bilirubin (advanced disease)
- treatment: ursodeoxycholic acid
Describe Wilson’s disease
- mutation in ATP7B gene resulting in inability to transport excess copper into bile = bile accumulation
- AR inheritance
- presents with chronic liver disease with neurological/psychiatric symptoms (eg. Parkinsonism, hand tremor, masked facial expression, slurred speech, ataxia, dystonia)
What are the investigation results and treatment of Wilson’s disease?
- low caeruloplasmin, high copper levels,
- treatment: copper chelation (panicillamine, trientine) or oral zinc (to reduce copper absorption)