Red Book - Chronic Liver Disease Flashcards
Causes of cirrhosis
Infections - Hep B/C
Drugs - Methotrexate, methyldopa, amiodarone
Cholestasis - Primary Billiary Cirrhosis, Sclerosing Cholangitis
Autoimmune hepatitis
Hereditary - Wilsons Disease, Haemochromatosis, alpha 1.
Vascular - BuddChiari, Veno-occlusive disease
NAFLD
Scoring systems of Chronic liver disease
Child Pugh score
MELD
SOFA helps to discrimninate survivors and non survivors
Features of the Child Score
Scored 1-3
5 parameters = 15 points
Encephalopathy Ascites Bilirubin Albumin INR
A: 5-6. 100% one year survival
B: 7-9. 81%
C: >10. 45%
Features of MELD
Model for End Stage Liver Disease
Bilirubin, INR, Creatinine all put into a formula
UK Model —> UKELD —> helps in selection of liver transplant patients
Why do cirrhotics end up in ICU
Bleeding - varices, post OGD etc
Encephalopathy causing low GCS leading to airway support
Sepsis - SBP
AKI
Alcoholic hepatitis
Define portal hypertension
Portal pressure > 10mmHg
What is the presence of portal hypertension associated with
Develop of porto-systemic collaterol circulation
Ascites
Splenomegaly
Diagnosis of portal hypertension
Clinical diagnosis
Pressures can only be measured directly during a TIPSS
Complications of portal hypertension
Varices —> massive upper GI bleed
Treatment options of variceal bleed
ABCDE etc.
Goals:
Volume resus
Blood products
Vasoconstrict - terlipressin
Endoscopy
Prevent complications —> antibiotics
If there is failure to stop bleednig
Sengstaken tube
Further attempts at endoscopy
TIPSS
Orthotopic liver transplant
What is a TIPSS
Transjugular Intrahepatic Portosystemic Shunt
Endovascular procedure that shunts a communication between portal vein and hepatic vein (in and out flow)
Reduces the portal pressures when there are complications (variceal bleed, resistant ascites)
Beware encephalopathy - blood from porta vein bypasses liver, not metabolised
What is Hepato-renal syndrome
Renal failure in patients wtih fulminant liver failure
A pre-renal AKI
Abnormal autoregulation with renal vasoconstriction and dilated sphlancnic vessels
Low fractional excretion of sodium and rise in creatinine
Diagnostic criteria of HRS
Cirrhosis with ascites
Creatnine >133 umol/.
That has not improved with two days of dieuretecs and albumin volume expansion
No shock
No nephrotoxins
No parenchymal disease
Types of HRS
1 - Rapid progressive loss of kidney function. (Mortalityy 50%)
2 - indolent, with dieuretic resistance ascites