TO DO LIVER & FRIENDS Flashcards
(98 cards)
JAUNDICE
Why are liver patients vulnerable to infection?
- Impaired reticuloendothelial function
- Reduced opsonic activity
- Leucocyte function
- Permeable gut wall
GALLSTONES
Give 3 causes of Gallstones
- Obesity and rapid weight loss
- DM
- Contraceptive pill
- Liver cirrhosis
GALLSTONES
what are the clinical features of biliary colic from gallstones?
Most are asymptomatic
SYMPTOMS
- RUQ/epigastric pain (constant, >30 mins, worse after fatty foods, worse after meals)
- referred pain to right shoulder
- nausea + vomiting
SIGNS
- murphy’s sign negative (pain after eating but not on palpation)
LIVER FAILURE
Give 5 causes of acute liver disease
- Viral hepatitis
- Drug induced hepatitis (e.g. paracetamol)
- Alcohol induced hepatitis
- Vascular - Budd-Chiari
- Obstruction
most common cause in UK is paracetamol overdose
LIVER FAILURE
Give 5 causes of chronic liver disease
- Alcohol
- NAFLD
- Viral hepatitis (B,C,E)
- Autoimmune diseases
- Metabolic
- Vascular - Budd-Chairi
LIVER FAILURE
what are the clinical features of chronic liver disease
SYMPTOMS
- fatigue
- anorexia
- jaundice
- bruising/bleeding
- confusion
SIGNS
- weight loss
- ascites
- caput medusae
- rectal haemorrhoids
- spider naevi
- gynaecomastia + hypogonadism
- hepatomegaly
CIRRHOSIS
what are the clinical features of cirrhosis?
SYMPTOMS
- weight loss
- malaise
- fatigue
- easy bruising
SIGNS
- palmar erythema
- Dupuytren’s contracture
- leukonychia
- jaundice
- ascites
- spider naevi
- confusion + asterixis
- caput medusae
- haematemesis
CIRRHOSIS
What investigations are done in someone with cirrhosis?
- FBC = anaemia + thrombocytopaenia
- U&Es = renal failure in acute
- LFTs = deranged, AST>ALT, raised GGT
- serum bilirubin = raised
- blood glucose = uncontrolled DM in NAFLD
- clotting = may be deranged
- hepatitis screen
- autoantibodies
- serum caeruloplasmin (screen for wilson’s)
- A1AT levels
- serum ferritin + transferrin (to screen for haemochromatosis)
- abdominal USS
- transient elastography
to consider
- AFP (to screen for HCC)
- liver biopsy (to grade + stage liver disease)
- UGI endoscopy (to assess for oesophageal varices)
PORTAL HYPERTENSION
Give 3 causes of portal hypertension
- Pre-hepatic = blockage of hepatic portal vein before the liver (portal vein thrombosis)
- Hepatic = distortion of liver architecture (cirrhosis, schistosomiasis, Budd Chiari syndrome)
- Post-hepatic = venous blockage outside the liver (RHF, IVC obstruction)
PORTAL HYPERTENSION
what is the clinical presentation of portal hypertension?
- often asymptomatic
- splenomegaly
- spider naevi
- GI bleeding
- ascites
- hepatic encephalopathy
ASCITES
what are the causes of ascites with serum ascites albumin gradient (SAAG) >11g/L?
Indicates portal hypertension
LIVER (most common cause)
- cirrhosis/alcoholic liver disease
- acute liver failure
- liver mets
CARDIAC
- right HF
- constrictive pericarditis
OTHER
- budd-chiari syndrome
- portal vein thrombosis
- veno-occlusive disease
- myxoedema
ASCITES
Describe the pathophysiology of ascites
- Increased intra-hepatic resistance leads to portal hypertension –> ascites
- Systemic vasodilation leads to secretion of RAAS, NAd and ADH –> fluid retention
- Low serum albumin also leads to ascites
Transudate = blockage of venous drainage
Exudate = inflammation
ASCITES
Describe the treatment for ascites
- Restrict sodium and fluids
- Aldosterone antagonist (SPIRONOLACTONE) +/- loop diuretic (FUROSEMIDE)
- Paracentesis
- prophylactic antibiotics (CIPROFLOXACIN or NORFLOXACIN) to prevent spontaneous bacterial peritonitis
HEPATITIS
Describe the natural history of HBV in 4 phases
- Immune tolerance phase: unimpeded viral replication –> high HBV DNA levels.
- Immune clearance phase: the immune system ‘wakes up’ = liver inflammation and high ALT
- Inactive HBV carrier phase: HBV DNA levels are low = ALT levels are normal, no liver inflammation
- Reactivation phase: ALT and HBV DNA levels are intermittent and inflammation is seen on the liver –> fibrosis
HEPATITIS
what are the investigations for HBV?
- surface antigen (HBsAg) = active infection
- E antigen (HBeAg) = marker of viral replication + implies high infectivity
- core antibodies (HBcAb) = past or current infection
- surface antibody (HBsAb) = implies vaccination or past or current infection
- Hep B virus DNA (HBV DNA) = direct count of viral oea
HEPATITIS
Give 3 side effects of alpha interferon treatment for HBV
- Myalgia
- Malaise
- Lethargy
- Thyroiditis
- Mental health problems
HEPATITIS
Give 2 HBV specific symptoms
Arthralgia
Urticaria (hives)
HEPATITIS
Describe the treatment for HCV
Direct acting antivirals (sofosbuvir or daclatasvir)
contact tracing
HEPATITIS
Is HDV a RNA or DNA virus?
Incomplete RNA virus
Needs Hep B for assembly
BUDD-CHIARI SYNDROME
What is Budd-Chiari syndrome?
Hepatic vein occlusion –> ischaemia and hepatocyte damage –> liver failure or insidious cirrhosis
HAEMOCHROMATOSIS
90% of people with haemochromatosis have a mutation in which gene?
HFE - chromosome 6
HAEMOCHROMATOSIS
Haemochromatosis is a genetic disorder, how is it inherited?
Autosomal recessive inheritance
HAEMOCHROMATOSIS
Give 4 signs of haemochromatosis
- Fatigue, arthralgia, weakness
- Hypogonadism – eg erectile dysfunction
- SLATE-GREY SKIN (brownish/bronze)
- Chronic liver disease, heart failure, arrythmias
HAEMOCHROMATOSIS
How might you diagnose someone with haemochromatosis?
- bloods - Raised ferritin, LFTs
- HFE genotyping - C282Y
- Liver biopsy - gold standard