LIVER & FRIENDS Flashcards
(57 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
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
Give 3 side effects of alpha interferon treatment for HBV
- Myalgia
- Malaise
- Lethargy
- Thyroiditis
- Mental health problems
HEPATITIS
Describe the treatment for HCV
Direct acting antivirals (sofosbuvir or daclatasvir)
contact tracing
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
Give 4 signs of haemochromatosis
- Fatigue, arthralgia, weakness
- Hypogonadism – eg erectile dysfunction
- SLATE-GREY SKIN (brownish/bronze)
- Chronic liver disease, heart failure, arrythmias
WILSONS DISEASE
What CNS changes are seen in a patient with Wilson’s disease?
Tremor Dysarthria Dyskinesia Ataxia Parkinsonism Dementia Depression
WILSONS DISEASE
What is the treatment for Wilson’s disease?
Lifetime treatment with penicillamine (chelating agent)
Low Cu diet - no liver, nuts, chocolate, mushrooms, shellfish
Liver transplant
AUTOIMMUNE HEPATITIS
How does autoimmune hepatitis present?
Fatigue, fever, malaise Hepatitis Hepatosplenomegaly Amenorrhoea Polyarthritis Pleurisy Lung infiltrates Glomuleronephritis
AUTOIMMUNE HEPATITIS
What diseases are associated with autoimmune hepatitis?
Autoimmune thyroiditis
DM
Pernicious anaemia
PSCUC
PRIMARY BILIARY CHOLANGITIS
what other conditions are associated with primary biliary cholangitis?
sjogrens syndrome
raynauds disease
autoimmune thyroid disease
rheumatoid arthritis
systemic sclerosis
PRIMARY BILIARY CHOLANGITIS
what are the clinical features of primary biliary cholangitis?
classic presentation = significant itching in middle-aged female
SYMPTOMS
- pruritus
- fatigue + weight loss
- dry mouth + eyes (sjogrens)
- obstructive jaundice (icteric, pale stool + dark urine)
SIGNS
- skin hyperpigmentation (increased melanin)
- clubbing
- mild hepatosplenomegaly
- xanthelsma + xanthomata
- scleral icterus
PRIMARY BILIARY CHOLANGITIS
What are the investigations?
- antimitochondrial antibodies (AMA)
- antinuclear antibodies (ANA)
- smooth muscle antibodies
- LFTs = obstructive jaundice (raised ALP, GGT + bilirubin, AST + ALT mildy deranged)
- coagulation profile = deranged in advanced disease
- serum immunoglobulin = raised IgM
- transabsominal USS (exclude other causes)
to consider:
- MRCP
- liver biopsy
PRIMARY BILIARY CHOLANGITIS
What is the treatment for primary biliary cholangitis?
1st line:
- ursodeoxycholic acid
- fat-soluble vitamin supplement (ADEK)
- cholestyramine (for symptomatic relief of pruritus)
2nd line
- liver transplantation (indicated in severe disease)
PRIMARY SCLEROSING CHOLANGITIS
what are the investigations?
-LFTs = raised ALP + GGT, raised conjugated bilirubin, ALT/AST may or may not be elevated
- albumin = decreased in later disease
- viral hepatitis screen
- pANCA
- anti-mitochcondrial antibodies (AMA) (to rule out PBC)
- abdominal USS (to exclude other causes)
- MRCP = beaded appearance (due to multiple biliary strictures)
to consider
- ERCP (gold standard)
- liver biopsy
PRIMARY SCLEROSING CHOLANGITIS
What is the treatment for primary sclerosing cholangitis?
1st line
- observation + lifestyle optimisation (alcohol cessation, exercise)
- cholestyramine for pruritus (rifampicin = 2nd line)
- ADEK vitamin supplement
END STAGE LIVER DISEASE
- liver transplant
ASCENDING CHOLANGITIS
What investigations might you do in someone who you suspect might have ascending cholangitis?
- trans-abdominal USS
- Blood tests - LFTS (ALP>ALT + raised bilirubin), CRP, FBC,
- MRCP = gold standard