Abdominal Flashcards
Autosomal Dominant Conditions
APKD type 1 (chromo 16) and type 2 (chromo 4)
Hereditary spherocytosis
HHT
Autosomal Recessive Conditions
Haemochromatosis (chromo 6)
Wilson’s disease (chromo 13)
Alpha 1 antitrypsin (chromo 14)
How can you differentiate the spleen from a kidney on palpation?
1) Dull to percussion
2) Not ballotable
3) Palpable splenic notch
4) Cannot get above splenic mass
Outline some causes of Spider Naevi?
= vascular lesion in distribution of SVC
> 5 = pathological
1) Normal in childhood
2) Pregnancy
3) Oestrogen
4) Chronic liver disease
5) Thyrotoxicosis
Outline causes of Acanthosis Nigricans
Insulin-resistant diabetes mellitus
Paraneoplastic
Hypo/hyperthyroidism
Acromegaly
Cushing’s disease
Obesity
Outline causes of gynaecomastia
Idiopathic
Chronic liver disease
Chronic kidney disease
Thyrotoxicosis
Congenital e.g. Klinefelter’s
Drugs e.g.
- Haloperidol
- Spironolactone
- Omeprazole
- Alcohol
- Ketoconazole
- Digoxin
Outline causes of Hepatomegaly
Cs & Is of Hepatomegaly
C - Cirrhosis
C - Carcinoma (HCC)
C - CCF
I - Infectious e.g. Hepatitis, EBV, CMV
I - Immune(Auto) e.g. PBC, PSC
I - Infiltrative e.g. Amyloidosis
I - Iron (Haemochromatosis)
What is pre-hepatic jaundice?
Jaundice = elevated serum bilirubin
Pre-hepatic = disruption in bilirubin pathway occurs prior to hepatic bilirubin conjugation
Increased RBC haemolysis = increase in levels of UNCONJUGATED bilirubin
Causes:
- Haemolytic anaemias
- Gilbert’s (autosomal recessive)
What is post-hepatic jaundice?
Jaundice = elevated serum bilirubin
Post-hepatic = disruption in bilirubin pathway occurs after hepatic bilirubin conjugation, and results in reduced excretion of bilirubin from body
Blockage prevents excretion of CONJUGATED bilirubin
Causes:
- Gallstones
- Pancreatic cancer
- Cholangitis
- Cholangiocarcinoma
Which blood tests can you do to differentiate between types of jaundice?
Liver function tests (ALT>ALP indicates hepatic damage, raised yGT and ALP indicates post hepatic “cholestatic”)
Split bilirubin (conj & unconj bilirubin)
Outline the blood tests involved in a liver screen
AUTOIMMUNE
- ANA, anti-mitochondrial antibody, anti-smooth muscle antibody, liver-kidney microsomal antibody
- Anti-TTG
INFECTIOUS
- Hep B surface antigen, Hep C antibody
- Hep B core antibody
- CMV/EBV (if acute)
Immunoglobulins
METABOLIC
- HbA1c
- Ferritin & iron studies
- Caeruloplasmin
Alpha feto-protein
Paracetamol (if acute)
?alpha 1 AT level
Outline the pathophysiology of Liver Cirrhosis
1) Hepatocellular injury
2) Stimulates stellate cells to become myofibroblasts
3) Myofibroblasts secrete pro-inflammatory cytokines and produce collagen
4) = Tissue fibrosis
5) = Distorts hepatic architechture and vasculature
6) = Portal hypertension and only hepatocellular injury due to reduced perfusion
What are the main causes of liver cirrhosis?
TOP 3
Alcohol
MASLD
Hepatitis C
Other important causes
- Autoimmune e.g. AIH, PBC
- PSC
- Haemochromatosis
- Wilson’s
- CF
- Alpha 1 AT
What is decompensated CLD? How could this present?
= acute deterioration in liver function in patients with cirrhosis
Jaundice
Asterixis
Confusion
Ascites
Peripheral oedema
Outline some risk factors for developing decompensated liver disease
Alcohol
Infection
AKI/Dehydration
Constipation
Medications e.g. sedating agents
Thrombosis e.g. hepatic vein thrombus
Fluid overload
What is Child Pugh grading?
Severity of cirrhosis score
A to C
- A = 100% 1 year survival
- C = 50% 1 year survival
5 components to score
1) Serum albumin
2) Ascites
3) Bilirubin
4) INR
5) Hepatic encephalopathy
Outline how you would investigate for ?chronic liver disease
Full history
Medication history
Alcohol history
Routine bloods, including FBC, U&Es, coagulation and LFTs
Non-invasive liver screen blood tests
- See other flashcard
USS Liver
?CTAP/MRCP (depends of type of jaundice)
FIB-4 score (predicts likelihood of advanced fibrosis)
Transient Elastography (fibroscan)
Liver biopsy?
Who are offered Transient Elastography in order to screen for liver cirrhosis?
Patients with Hepatitis C
Men who drink > 50 units of alcohol/week
Women who drink > 35 units of alcohol/week
Patients with known Alcoholic Liver Disease
Which criteria can help you decide which patients with cirrhosis should have OGD surveillance for oesophageal varices?
Baveno Criteria
How often should patients with liver cirrhosis be offered HCC screening? What does this entail?
Liver USS every 6 months +/- aFP levels
Outline the management of ascites
Reduce dietary intake of sodium
Aldosterone antagonist (spironolactone)
Monitor weight
Therapeutic abdominal paracentesis
Transjugular intrahepatic portosystemic shunts
?Prophylactic antibiotics e.g. ciprofloxacin
- If previous SBP or cirrhotic with ascitic protein < 15g/L
Risk of TIPS procedure
Increased risk of hepatic encephalopathy
What would be the main indication for performing a transjugular liver biopsy as opposed to percutaneous?
Ascites
How can you delineate between transudate and exudate causes of ascites?
Serum:Ascites Albumin Gradient
SAAG>11g/L = Transudate
SAAG< 11g/L = Exudate
Causes of Transudate Ascites
Cirrhosis with portal HTN
CCF
Nephrotic syndrome
Budd-Chiari
Portal Vein thrombosis
Malabsorption
Myxoedema
(Failures and Thrombuses)
Causes of Exudate Ascites
Malignancy e.g. metastatic GI cancers, HCC, ovarian, peritoneal
TB peritonitis
Pancreatic ascites
Meig’s Syndrome
= ovarian fibroma, pleural effusion & ascites
Bowel Obstruction
Serositis in CTD
What is hepatorenal syndrome?
Renal hypoperfusion and failure, secondary to severe liver disease
Type 1 = Rapidly progressive, poor prognosis
Type 2 = Slowly progressive
How would you manage a patient with hepatorenal syndrome?
MDT approach - liver and renal specialists
Terlipressin (splanchnic vasoconstrictor)
Cautious monitoring of fluid balance - + HAS 20%
TIPSS
Grading of Hepatic Encephalopathy
West Craven Criteria
0 = clinically normal
1 = mild confusion, irritability, short attention span, disordered sleep
2 = drowsy, disorientated, inappropriate
3 = somnolent but rousable to voice, v confused, amnesia
4 = comatose
Alcoholic Hepatitis
= inflammatory condition related to ongoing alcohol intake
Severe Alcoholic Hepatitis = 30-50% 4 week mortality
Transaminases usually >500
AST:ALT > 2
MANAGEMENT
- Alcohol abstinence + withdrawal support
- MDT approach (nutrition, ASNs)
- Maddrey’s discrimnant function can help determine if will benefit from steroids (>32)
MELD score (Model for End Stage LD) - prognostic predictor
Autoimmune Hepatitis
3 main types
1) Type 1
= positive ANA and anti-smooth muscle antibodies
- Adults & children
2) Type 2
= Anti-liver/kidney microsomal type 1 antibodies (LKM1)
- Mainly children
3) Type 3
= Soluble liver-kidney antigen
- Middle aged adults
Usually young women, with associated autoimmune conditions e.g. coeliac
Raised IgG!!!!
Autoantibodies & liver biopsy
MANAGEMENT
- Steroids or steroid-sparing immunosuppression e.g. azathioprine
- Liver transplant
Primary Biliary Cholangitis
Autoimmune condition - destruction of small intrahepatic ducts
F:M = 9:1, middle aged women
Anti-mitochondrial antibodies & IgM
Associations = RA, Sjogren’s, Systemic sclerosis, coeliac
Classically asymptomatic with isolated raised ALP
Itch/fatigue/RUQ pain/jaundice
Management of Primary Biliary Cholangitis
MDT approach
Alcohol abstinence
Pruitus = cholestyramine
Vitamins ADEK (d2 reduced fat soluble vitamin absorption)
Ursodeoxycholic acid (reduces cholestasis and can improve prognosis)
Liver transplant (esp if bili > 100)
Possible complications of PBC
Liver cirrhosis
HCC (20x increased risk)
Osteoporosis/osteomalacia
Vitamin ADEK deficiency
If have liver transplant, there is a risk of recurrence!
Primary Sclerosing Cholangitis
= Inflammatory condition of intra and extrahepatic ducts = progressive scarring and obstruction
Associations = UC (80% of PSC pts have UC), Crohn’s, HIV
Male > Female
pANCA positive
ANA and anti-smooth muscle antibodies
MCRP –> ERCP (beaded appearance)
?Liver biopsy
Management of Primary Sclerosing Cholangitis
MDT approach
Alcohol abstinence
Vitamins (ADEK)
Ursodeoxycholic acid
?Liver transplant
SCREENING
- If have IBD = annual colonoscopies
- Screening for cholangiocarcinoma