Liver + Friends Flashcards
(218 cards)
What kind of virus is hepatitis A?
An RNA virus
How is hepatitis A transmitted?
Feco-orally
What is a presentation of viral hepatitis in different age groups?
Asymptomatic in children
symptomatic in adults
What is the treatment of viral hepatitis?
A) supportive +/- IVIG or vaccine –> transplant
B) entecavir —-> transplant
C) glecaprevir/pibrentavir —-> transplant
Who is most at risk of getting a severe infection of Hepatitis A?
Anyone with the coinfection of hepatitis B or C
anyone with any other underlying liver disease
What kind of virus is hepatitis B?
DNA virus
Does hepatitis B always progress to chronic liver disease?
No it is often self-limiting requiring no treatment
Who is most at risk of developing chronic liver disease from hepatitis B?
If the virus is acquired parenterally or if infection occurred in childhood
What is the treatment of hepatitis B?
B ET
Antivirals – entecavir
if pregnant - tenofovir
+ supportive
liver transplant if decompensated
How is hepatitis B transmitted?
percutaneous, per mucosal, sexually
What type of virus is hepatitis C?
RNA virus
What is the most common method of spread of hepatitis C?
IV drug users
What proportion of patients develop symptoms of hepatitis C in the acute phase?
1/3
What is management of hepatitis C?
Antivirals - glencaprevir
+ supportive
liver transplant
What are symptoms of viral hepatitis?
Fever and malaise - acute phase
jaundice
ascieties
signs of encephalopathy
If you suspect someone has viral hepatitis what investigations should you perform?
LFT - ALT(especially) and ALP raised, bilirubin,
Coagulation profile - PT raised
U+E - hepatorenal disease, and monitor kidneys if on diuretics
FBC - anaemia of chronic disease, WCC raised in acute infection
Viral PCR or
Hep A IGM
Hep B surface antigen test or core antigen test or serum antibody test
Hep C antibody immunoassay
What specific diagnostic test can you perform for hepatitis A (apart from viral PCR)?
Hep A IGM
What specific diagnostic test can you perform for hepatitis B (apart from viral PCR)?
Hep B surface antigen test or core antigen test or serum antibody test
What specific diagnostic test can you perform for hepatitis C (apart from viral PCR)?
Hep C antibody immunoassay
What are the three stages of alcoholic liver disease?
Fatty liver – steatosis
alcoholic hepatitis – inflammation and necrosis
cirrhosis
Describe the pathophysiology of alcoholic liver disease?
The breakdown of alcohol inhibits gluconeogenesis and increases fatty acid oxidation
promoting fatty in filtration and producing free radicals
ree radicals and the deficiency of antioxidants (vitamins E- usually from malnutrition) causes oxidative stress
promotes necrosis and apoptosis
free radicals also cause lipid oxidation causing further inflammation and fibrosis
acetyl-aldehyde a metabolite from alcohol breakdown induces inflammation
How does alcoholic liver disease usually present?
Right upper quadrant pain – acute hepatitis hepatomegaly weight loss or weight gain malnutrition and wasting jaundice ascites (in cirrhosis)
What bloods do you need to perform in alcoholic liver disease?
LFTs
- AST ALC serum bilirubin GGT (all +)
- serum alk phosphate usually normal but can be +
- serum albumin/protein (-)
PT/INR (+)
FBC (+ WCC thrombocytopenia, microcytic anaemia)
serum electrolytes especially magnesium and phosphate (–)
U+E (hepatorenal)
Apart from blood what other investigations should you perform in alcoholic liver disease?
Hepatic ultrasound scan: hepatomegaly fatty liver Chirossis ascites portal hypertension splenomegaly