HPB Flashcards
What are the screening questionnaires for alcohol consumption?
CAGE
AUDIT
What are the signs of alcoholic liver disease?
Jaundice + scleral jaundice Palmar erythema Hepatomegaly Spider naevi Caput medusa Flapping tremor (asterixis) Ascites Gynaecomastia Unexplained bruising
How is alcoholic liver disease diagnosed?
Careful history taking and examination
LFTs: Raised AST/ALT, normal/mild raised ALP, raised gamma gt, low albumin, raised bilirubin
Clotting: prolonged PT
USS abdo: may show enlarged/fatty liver in acute inflammation or small, sclerotic liver
CT abdomen
Liver biopsy
OGD can be done to look for varices
What is the management of alcoholic liver disease?
- Stop drinking / detox programme
- Calorie and nutrition support- incl thiamine
- Consider suitability for transplant
- Symptomatic treatment
What are the stages of alcohol withdrawal?
- 6-12 hrs: tremors, sweating, headache, cravings and anxiety
- 12-24 hrs: hallucinations and tactile disturbance - characteristically insects crawling
- 24-48hrs: seizures
- 48-36 hrs: delirium tremens
What is delirium tremens?
Alcohol withdrawal syndrome - 48-36hr into withdrawal
Downregulation of GABA, up regulation of glutamate -> brain excitability and adrenergic overactivity
Sx: confusion, agitation, delusions and hallucinations
tremor, ataxia, tachycardia, hyperthermia, arrhythmia
What classification system is used in alcohol withdrawal?
CIWA-AR tool
How should you manage acute alcohol withdrawal?
Benzodiazepine e.g. chlordiazepoxide (librium) titrated regimen
Thiamine: IV pabrinex followed by oral thiamine
Manage any seizures/other symptoms
What are the 3 features of Wernicke’s encephalopathy?
Confusion
Ataxia
Occulomotor disturbance
What are the three features of Korsakoff’s syndrome?
- Amnesia- anterograde and retrograde
- Confabulation
- Behavioural change: lack of insight, apathy
What are the causes of liver cirrhosis?
Common:
- Alcoholic liver disease
- Non-alcoholic steatohepatitis
- Chronic viral hepatitis
- Drug causes
Less common
- a1-antitripsin deficiency
- Wilson’s disease
- Haemochromatosis
- Primary biliary cirrhosis
- Autoimmune hepatitis
- Cystic fibrosis
Which drugs most commonly cause liver cirrhosis?
- Methotrexate
- Amiodarone
- Sodium valproate
- Chemotherapy agents
TPN is also associated with liver injury and fibrosis.
What are the signs of liver cirrhosis?
Palmar erythema Asterixis Jaundice Spider naevi, caput medusa Ascites and oedema Bruising and bleeding Pale stool and dark urine Splenomegaly Gynaecomastia
What investigations should be done in liver cirrhosis?
- LFTs: raised AST/ALT, raised ALP, low albumin, high bilirubin, ?gamma gt
- Coagulation: prolong PT
- AFP: marker for HCC
- U&E: can cause deranged urea and creatinine, hyponatraemia due to dilution
- Hepatitis viral screen and autoantibody testing
- USS abdomen and Fibroscan
- CT scan and biopsy
- Endoscopy looking for varies
Enhanced liver fibrosis blood test= new test, not available in all centres
What are the scoring systems for liver cirrhosis?
Child-Pugh score - indicated severity
MELD score- done 6 monthly in those with compensated cirrhosis to estimate mortality and need for transplant
How should patients with liver cirrhosis be managed?
Avoid alcohol!
- Vitamin and nutrition replacement - high protein, low sodium, vitamin supplements
- Coagulopathy management
- Diuretics for ascites
- BP control for hepatorenal syndrome
- Consideration for transplant
What are the complications of cirrhosis?
Ascites + SBP Portal hypertension Varices + variceal bleeding Hepatorenal syndrome Encephalopathy Bleeding/bruising Malnutrition HCC
What is the blood marker for HCC?
AFP
How are stable varices managed?
- Stop drinking if alcohol-related / abstain either way
- Propranolol to reduce BP
- Elective banding procedure
- TIPS procedure
How are unstable varices managed?
A-E
Bloods: FBC, U&E, LFT, CRP, coagulation, group and save
Resuscitation if necessary
Correct any coagulopathy
IV terlipressin + IV Abx
if stable enough for endoscopy- endoscopic banding
Sengstaken-Blakemore tube / balloon tamponade in less stable patients
How does ascites form?
Less albumin produced by the liver -> lower osmotic pull of the bloodstream
Fluid loss into extracellular space
Reduced blood volume -> reduced renal perfusion -> activation of RAAS
Fluid and sodium retention
How should ascites be managed?
- Low sodium diet
- Spironolactone
- Ascitic tap / drain
- > Sample should always be sent for analysis
- > for every litre of fluid drained, a certain amount of albumin should be given to the patient to prevent immediate recurrence.
What are the most common organisms causing SBP?
Ecoli
Klebsiella
Gram positive cocci
What are the symptoms of SBP?
May be asymptomatic Ascites Abdominal pain Fever Sepsis Ileus