Cirrhosis Flashcards
Cirrhosis
Irreversible scarring and inflammation of fibrotic liver disease
Death rate of cirrhosis
26%
Causes of cirrhosis
structural changes from injury (alc, viral) and fibrosis
Cirrhosis patho
chaotic fibrosis causes obstructive biliary channels and obstructed blood flow leading to jaundice, portal HTN
Fibrosis
connective tissue from infiltrates of leukocytes that release inflammatory mediators and activate fibrotic processes
What stops the liver from regenerating with cirrhosis?
hypoxia, necrosis, atrophy, liver failure
Does cirrhosis develop quickly?
NO - often slow, but alc can be very fast
What can stop progression of cirrhosis?
removal of the toxin (won’t reverse it tho)
Causes of cirrhosis
- hep b & c
- excess alc intake
- idiopathic,
- non-alcoholic fatty liver disease (NASH & NAFLD)
- autoimmune
- hereditary metabolic conditions
alcoholic cirrhosis
- alcohol is converted to acetaldehyde which activates hepatic stellate cells in excess (involved in fibrosis);
- acetaldehyde inhibits export of proteins from the liver, alters vitamin metabolism, induces malnutrition
- Kupffer cells attract neutrophils which cause toxins to accumulate from gut bacteria and cause suppressed cell-immunity
Alcoholic fatty liver leads to…
Alcohol steatohepatitis which leads to alcoholic cirrhosis
Alcohol fatty liver
- mild or asymptomatic
- reversible
- fatty accumulation from inc lipogenesis
Alcoholic steatohepatitis
- inflammatory degeneration of hepatocytes, WBCs infiltrate, stimulates irreversible fibrosis
- anorexia, nausea, edema, jaundice
- inc hepatic fat storage
Alcoholic cirrhosis
- immunological problem
- inflammation, oxidative stress, cell damage, cell necrosis, fibrosis and scarring
Patho of cirrhosis
Liver cells are destroyed - try to regenerate - disorganization - abnormal growth - poor BF and scarring - hypoxia - liver failure