Gastro Flashcards
Define alcoholic liver disease
Stepwise progression of liver disease resulting from the long term effects of excessive alcohol consumption
Progression of alcoholic liver disease
Alcohol related fatty liver
Alcoholic hepatitis
Live cirrhosis
Complications of alcohol
Alcoholic liver disease
Cirrhosis
Hepatocellular carcinoma
Alcohol dependence
Wernicke-korsakoff syndrome
Pancreatitis
Alcoholic cardiomyopathy
Clinical signs of liver disease
Jaundice
Hepatomegaly
Spider naevi
Palmar erythema
Gynaecomastia
Bruising
Ascites
Caput medusae - engorged superficial epigastric veins
Asterixis a
Investigations in alcoholic liver disease
FBC - Raised MCV
LFTs - elevated transaminases, raised GGT. ALP raised in late disease. Bilirubin raised in cirrhosis
Clotting - raised pt
UE - hepatorenal syndrome
US - fatty changes
Endoscopy - varices
CT/MRI - fatty infiltration
Liver biopstu
Management of alcoholic liver disease
Stop drinking!
Detox?
Nutritional support
Steroids
Treat complications
Alcohol withdrawal times
6-12 hours - tremor, sweating, headache, craving and anxiety
12-24 - hallucinations
24-48 - seizure
24-72 - delirium tremens
Define delirium tremens
Medical emergency caused by alcohol withdrawal
Alcohol stimulates gaba and inhibits glutamate, as a result the glutamate is upregulated.
When removed glutamate overfunctions causing excess adrenergic activity
Presentation of delirium tremens
Acute confusion
Severe agitation
Delusions and hallucinations
Tremor
Tachycardia
Hypertension
Hyperthermia
Ataxia
Arrhythmias
Management of alcohol withdrawal
Chlordiazepoxide - benzo
Pabrinex - IV thiamine
Define wernicke-korsakoff syndrome
Encephalopathy caused by lack of thiamine.
Wernickes encephalopathy leads to kordakoff syndrome
Features of Wernicke’s encephalopathy
Confusoin
Oculomotor disturbance - movement
Ataxia - coordination
Features of Korsakoff’s syndrome
Memory impairment
Behavioural change
Often irreversible
Define liver cirrhosis
Damage to hepatocytes resulting in scar tissue forming. Results from chronic inflammation.
Common causes of liver cirrhosis
Alcoholic liver disease
Non alcoholic liver disease
Hepatitis B
Hepatitis C
(AI, PBC, Haemochromatosis, Wilsons, alph-1 antitrypsin, cystic fibrosis, drugs)
Clinical signs of liver cirrhosis
Jaundice
Hepatomegaly
Splenomegaly
Spider naevi
Palmar erythema
Gynaecomastia
Bruising
Ascites
Caput medusae
Aterixis
Investigations in liver cirrhosis
LFTS - often normal, maybe deranged
Albumin and PT useful markers of synthetic function
Hyponatraemia
Urea and creatinine deranged
Alpha-fetoprotein
Enhanced liver fibrosis blood test
US
Fibroscan
Endoscopy
CT/MRI
Biopsy
Tumour marker for hepatocellular carcinoma
Alph-fetoprotein
Scoring system for severity of Cirrhosis
Child-Pugh score
Bilirubin
Albumin
INR
Ascites
Encephalopathy
MELD score - 3 month mortality
Management of liver cirrhosis
US and alpha-fetoprotein every 6 months
Endoscopy every 3 years
High protein
Low sodium
MELD score every 6 months
Consideration of liver transplant
Managing complications
Common complications of liver cirrhosis
Malnutrition
Portal hypertension, varices and variceal bleeding
Ascites and SBP
Hepato-renal syndrome
Hepatic encephalopathy
Hepatocellular carcinoma
Define portal hypertension
Liver cirrhosis increases resistance to blood flow as a result there is increased back pressure in the portal system causing anastomoses with the systemic venous system. These can become swollen and tortuous - varices
Management of stable varices
Propranolol - reduce portal hypertension
Elastic band ligation
Injection of sclerosant
Trans jugular intra-hepatic portosystemic shunt
Management of bleeding oesophageal varices
Resus - vasopressing (vasoconstriction)
Vit K - Correct coagulopathy
Broard spectrum antibiotics - prophylactic
Intubation and ITU
Urgent endoscopy - ligation, sclerosant, sengstaken-blakemore tube