74. Hepatitis Flashcards
How does hepatitis A spread?
Faecal-oral spread/shellfish
What are the presenting symptoms of hep A?
Fever Malaise Anorexia Nausea Arthlagia
How do you detect hep A?
IgM and IgG antibodies not present for 22-40days post infection
ALT and AST doesn’t rise until week 3 then return to normal between 5 and 20 weeks.
What is the prognosis and treatment of hep A?
Self limiting, usually doesn’t cause decompensated liver failure (fulminant hepatitis)
Fulminant hepatitis treated with interferon alpha
How does hep B spread?
Blood products, needle sharing
How does hep B present?
Urticaria Arthlralgia Fever Malaise Anorexia Nausea
When are the antibodies present for detection?
What do antibodies HBcAg and HBsAg imply?
1-6 moths post infection
HBc- past infection
HBs- past vaccination
What are the complications of hep B?
Fulminant hepatitis
Cirrhosis
HCC
Cholangiocarcinoma
How do you treat hep B?
Avoid alcohol
Trace contacts
Refer those with chronic inflammation or cirrhosis for antivirals
PEG interferon Alfa 2-a vs long term
How is hep C spread?
Blood transfusion, IVDA, sexual contact
Discuss the presentation and prognosis of hep C
Silent hepatitis, 85% develop silent chronic infection
25% develop cirrhosis
4% hepatocellular carcinoma
How is hep c treated?
Depends on type (1-6) typically ledipasvir and sofosbuvir
Interferon free regimes eliminate barriers to treatment such as side effects and long regimes
How is hep D treated?
Interferon alpha has limited success, liver transplantation May be needed
Which hepatitis are associated with each other
Hep B and D
Which hepatitis have a vaccine?
Hep A, B (b covers b and d)