Liver Symposium Flashcards
What forms of hepatitis are transmitted enterically
A
E
Which forms of hepatitis are self-limiting acute infections
A
E
Which forms of hepatitis cause chronic disease
B, C and D
Transmission, Presentation, Diagnostics of Hep A (HAV)
T- faecal/oral, blood, sexual
P- Asymptomatic Presentation Common
D- IgM antibodies
Who is immunised against Hep A
Traverllers Patients with chronic liver disease (HCV/HBV) Haemophiliacs Occupational Lab wokrers Homosexual Men
Purpose of HBV Antibodies purpose
IgM anti-HBc
IgG anti HBc
IgM - indicates acute infection
IgG - indicates chronic infection/exposure.
Treatment options for HBV
Pegylated Interfeon
Oral Antivirals
Hep C/HCV , presentation & treatment
Rarely Jaundice or acute liver failure, mostly asymptomatic until cirrhotic. treated with antivirals.
Hep D/ Delta Virus/ HDV
Small RNA virus, can form super infection with HBV. Very resistant to treatment
Hep E/ HEV
Self-limiting, no specific treatment or vaccine available
What is NAFLD and name three examples
Non-alcoholic fatty liver disease, associated with metabolic syndromes
- Simple Steatosis
- Non-alcoholic steatohepatitis
- Fibrous and Cirrhosis
Examples of Metabolic Syndromes
Diabetes
Obesity
Hypertriglyceridemia
Hypertension
What are risk factors for NAFLD
Age
Ethnicity - Hispanics
Genetics
What is Steatosis
Abnormal retention of fat in the liver. Impairment of synthesis and elimination off triglycerides. Fatty Liver
What is steatohepatitis
Inflammation caused by fat accumulation in the liver.
Natural History of NAFLD
- Normal
- Steatosis
- NASH - steatohepatitis
- Cirrhosis
How is NAFLD investigated and diagnosed?
AST/ALT ration ELF panel (enhanced liver fibrosis) US Fibroscan MR/CT MR spectrscopy (quantify fat) Biopsy Cytokeratin-18 (linked to fibrosis
Treatment of NAFLD
Diet and weight reduction Exercise Insulin sensitizers (metformin) GLP-1 Vitamin E Bariatric Surgery
Name 3 autoimmune liver diseases
Autoimmune hepatitis
Primary biliary cholangitis
Primary sclerosing cholangitis
Describe autoimmune hepatitis
Female>Males Elevated IgG Liver biopsy diagnostic Responds well to steroids Given long term azathiprime (immunodepressant)
Describe Primary Biliary Cholangitis (PBC)
Female Predominant
Chronic Disease of the smaller bile ducts in the liver, not detected on MRI due to size and is instead detecting by antibody tests (IgM elevation, anti-mitochondiral antibody positive).
Treatment of choice UDCA Ursodeoxycholic acid.
Describe Primary sclerosing cholangitis (PSC)
Male predominant
Inflammation and scarring of the bile ducts resulting in sclerosis and narrowing, leading to liver damage as bile cannot be released properly. This affects that med-large bile ducts.
pANCA postive. Stricturing disease. MRCP test of choice.
Given liver transplantation or biliiary stents.
Post transplantation treatment
Post OP - ICU
Prophlatic antibiotics and antifungals
Antirejection drigs - steroids, azathioprine Tacrolimus/Cyclosporine
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