Liver symposium Flashcards

(47 cards)

1
Q

What is viral hepatitis caused by?

A

A, B= enteric viruses

C, D, E= parenteral viruses

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2
Q

What hepatitis viruses cause acute infections?

A

A, E

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3
Q

What hepatitis viruses cause chronic disease?

A

B, C, D

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4
Q

Where is Hep A prominent?

A

Developing countries and Greenland

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5
Q

How is Hep A transmitted?

A

Faecal oral
Sexual
Blood

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6
Q

What is the most common presentation of Hep A?

A

Asymptomatic

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7
Q

How is acute Hep A diagnosed?

A

By IgM antibody presence

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8
Q

Who is given immunisation against Hep A?

A
Travellers
Patients with chronic liver disease
Haemophiliacs
Occupational exposure i.e. lab
Men who have sex with men (MSM)
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9
Q

What is the typical timespan of Hep A?

A

Presentation 2 weeks after infection
Viremia gone by 6 weeks post infection
Clinical illness lasting 8 weeks post infection

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10
Q

What is the structure of the Hep B virus?

A

Inner protein core with antigen enclosing DNA

Outer lipid envelope containing surface antigen

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11
Q

What antigens are expressed from HBV?

A

HBeAg
HBcAg
HBsAg

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12
Q

What is the HBeAg and what does it do?

A

Antigen that is a sign of active replication

Iterferes with host immune system and prevents them from attacking the virus

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13
Q

What is HBsAg used to detect?

A

Presence of hep B virus, rather than activity

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14
Q

What is HBcAg used to detect and where is it found?

A

Active replication of HV

Only found in liver

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15
Q

What antibodies launch a response against HBV?

A

IgM
IgG
Anti HBe
Anti HBs

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16
Q

What is IgM presence used to detect in HBV?

A

If the virus has been acquired in the last 6 months

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17
Q

What does IgG indicate in HBV?

A

Chronic infection

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18
Q

What is the usual progression of HBV?

A

No progression from chronic virus

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19
Q

What can HBV progress onto?

A

Cirrhosis
Hepatocellular carcinoma
End stage liver disease

20
Q

How does Hep C progress?

A

15% resolution
70% live with chronic
15% progress to cirrhosis, hepatocellular carcinoma and possible death

21
Q

How is HCV treated?

A

Direct acting antiviral oral drugs

22
Q

How is HCV diagnosed?

A

Test for the anti HCV antibody

23
Q

WHt is Hep D?

A

Small RNA virus that can co infect with HBV

24
Q

Why is HDV a confection with HBV?

A

HDV cannot support itself, it needs the HBV surface antigen

25
How is hep B spread?
Blood, semen or other bodily fluids
26
How is Hep D spread?
Blood, semen or other bodily fluids
27
How does HDV infect with HBV?
Enveloped by the HB antigen
28
What is hep E?
Self limiting virus | Most common cause of acute hepatitis in Grampian
29
What is non alcoholic fatty liver disease>
Umbrella term encompassing simple steatosis, non alcohol steatohepatitis Fibrosis and cirrhosis
30
With is non alcoholic fatty liver disease associated with?
Diabetes mellitus Obesity Hypertriglyceridaemia Hypertension
31
What are th risk factors for non alcoholic fatty liver disease?
Age Ethnicity Genetic factors
32
What is the natural progression of non alcoholic fatty liver disease?
Steatosis-->non alcohol steatohepatitis --> cirrhosis
33
How is non alcoholic fatty liver disease diagnosed?
LFT Ultrasound Fibroscan Biopsy
34
How is non alcoholic fatty liver disease treated?
Improve insulin sensitivity i.e., weight loss, exercise Treat risk factors i.e., diabetes, hypertension Avoid excessive alcohol
35
What are the types of autoimmune liver disease?
Autoimmune hepatitis Primary biliary cholangitis Primary sclerosis cholangitis
36
What does autoimmune hepatitis cause?
Elevated IgG
37
How is autoimmune hepatitis diagnosed and treated?
Liver biopsy | Long term azathioprine steroid
38
What does primary biliary cholangitis cause?
Elevated IgM positive antimicrobial antibody Pruritus and fatigue
39
What anatomical structure is involved in primary biliary choangitis?
Intrahepatic bile duct
40
What does primary scleroid cholangitis cause?
pANCA positive Stricturing Recurrent cholangitis, jaundice
41
What anatomical structures are involved in primary sclerosis cholangitis?
Intra and extra hepatic bile ducts
42
When is a liver transplant considered for patients?
Chronic liver disease with poor predicted survival or quality of life Hepatocellular carcinoma Acute liver failure Genetic diseases
43
What are the contraindications for liver transplant?
Active extra hepatic malignancy Active substance or alcohol abuse Other comorbitities Brain death
44
What gets priority on the liver transplant list?
Acute liver failure
45
What is the prioritisation method for liver transplant?
UKELD scores
46
What kind of transplant is a liver transplant?
Orthotopic
47
What treatment is given post liver transplant?
ICU Antibiotics and antifungals Antirejections