Alcohol related diseases Flashcards
What are the common symptoms of ALD?
- Jaundice
- Muscle wasting
Do not show up until advanced
Tests for ALD
Blood tests: Gamma GT macrocytosis: increase in size of RBCs without increase in Hb content Thrombocytopenia: low platelet count ADT/ALT>2
Consequences of ALD?
Steatosis: Fatty acid cannot be broken down- Interrupted lipid metabolism
Steatohepatitis: build up of fat in the liver which can lead to fibrosis and eventually cirrhosis
How does alcohol damage the liver?
- Alcohol is a toxin to the liver: leads to liver failure due to chronic exposure
- Interrupts many metabolic processes such as Gluconeogenesis and Lipid metabolism
NAFLD and NASH
Non-alcoholic fatty liver disease
Non-alcoholic steato-hepatiits
Usually caused by diabetes and hypercholesteremia
Steatohepatitis
Fatty build up in the liver which leads to fibrosis and eventually cirrhosis
Investigation:
- US
- Biopsy
- Raised ALT
Treat: weight loss, exercise, abstinence of alcohol
How is alcohol consumption questioned?
- Take history
- Use CAGE questions
- Fast/audit questionnaire about alcohol intake
CAGE questions
- do they ever feel the need to CUT down
- are they ANNOYED by critcism of drinking
- are they GUILTY about ther drinking
- do they need an EYEOPENER (morning drink)
Signs of alcohol liver disease
- Spider Naevi
- Palmar erythema
- Gychonomastia
- Loss of pubic/axillary hair
- Ascites
How is hepatic encephalopathy related to ALD
Associated with liver failure which is usually associated with ALD.
Not direct consequence
Hepatic encephalopathy pathology
- Due to the build up of Ammonia in the brain
- Ammonia is usually broken down into Urea in the liver
Common reasons for levels of ammonia to increase in the blood?
- Infection
- Drugs
- Constipation
- GI bleed
- Electrolyte disturbance
How do constipation and GI bleeds lead to an increase in Ammonia ?
Blood and faeces break down into ammonia which is then reabsorbed into portal circulation
Hepatic encephalopathy treatment?
- Clear out the bowel (laxatives, enemas)
- Antibiotics
- ITU
- airway support
- NG tube
How is hepatic encephalopathy graded?
1=mild confusion
4= coma