hepatic Flashcards
GGT (gamma glutamyl transferase), ALP, and TBIL → tell us about
bile ductal cells
ast and alt detect
injury to hepatocytes
Best test for measuring day to day synthetic function of the liver:
prothrombin time/INR
ercp?
allows you to treat and dx probs of the liver, GB, bile ducts, and pancreas
ercp procedure
Endoscope goes into the duodenum, dye is injected into CBD, and can see by fluoroscopy
portal htn back up
Blood backs up in the stomach, intestines, spleen, pancreas, when portal venous system is backed up
portal htn leads to
esophageal varices and hemorrhoids
cirrhosis?
Fibrosis and nodules in liver
dx ascites
Dx with US or CT… hard to dx on PE
ascites trmt
Trmt- Na restriction, diuretics
Kayser fleischer rings
corneal copper deposition in wilson’s disease
Fetor hepaticus?
(bad odor of breath and urine)
guaiac + stools are a sx in this disease
cirrhosis
Asterixis ?
flappy tremor of arms
choreoathetosis ?
dancing extremities
common causes of cirrhosis
Common: Hep B and C, alcoholic liver disease, hemochromatosis, NASH (nonalcoholic steatohepatitis)
Extrahepatic cholestasis?
Bile flow from liver is reduced bc of an obstruction outside the liver
Intrahepatic cholestasis?
Bile flow from liver is reduced bc of an obstruction inside the liver
Primary sclerosing cholangitis (PSC)?
Chronic progressive inflammation, fibrosis, and stricturing of medium and large ducts in intra and extra hepatic biliary tree that leads to fatigue
Primary sclerosing cholangitis (PSC)
cause
unknown
Primary sclerosing cholangitis (PSC) sx
Asymptomatic
Fatigue, pruritus (from hyperbilirubinemia), RUQ pain, arthropathy
Primary sclerosing cholangitis (PSC)
pe
May be normal
Hypopigmentation, excoriation (from itching), jaundice
Late stage: ascites, clubbing, edema
Primary sclerosing cholangitis (PSC)
dx
\+ antimitochondrial antibodies (AMA) Inc LFT esp. Alk phos Histology shows Asymmetric destruction of bile ducts Do liver biopsy, MRCP, ERCP Need all 3 to dx
Associated with UC
Primary sclerosing cholangitis (PSC)
“Beading of bile ducts”
Primary sclerosing cholangitis (PSC)
Primary sclerosing cholangitis (PSC)
2 trmt goals
Slow and reverse disease progression- many drugs dont succeed
Manage disease and complications
Primary sclerosing cholangitis (PSC)
trmt
Ursodeoxycholic acid (UDCA)/Ursodiol is best
Endoscopic therapy to dilate or stent the stricture
No widely acceptable trmt
Treat underlying sx: itching, bone disease, hyperlipidemia
Ursodeoxycholic acid (UDCA)/Ursodiol- good if trmt starts early bc it thins the bile duct
Cholestyrene resin reduces pruritis
Liver transplant if they think you’ll die within a year
Acute Hepatitis A
cause
Hep A virus (HAV)
Acute Hepatitis A
sx
Nausea, vomiting, fatigue, diarrhea, fever, jaundice
Acute Hepatitis A
prevention?
yes, Vaccine
Acute Hepatitis A
transmission
Fecal oral route
No bloodborne transmission
Hepatitis B
cause
Hepatitis B virus (HBV)- DNA virus
Hepatitis B
transmission
Transmitted by blood, sex
Present in saliva, semen, or vaginal secretions
HBsAg + mothers can transmit HBV when delivering baby
Hepatitis B
sx
Anorexia, NV, malaise
Fever, enlarged liver and tender, jaundice
Hepatitis B
dx
High aminotransferases (ALT and AST)
Liver biopsy: hepatocellular necrosis
Chronic hep B will have high aminotransferase levels for over 6 mo
Hepatitis B
prevention?
yes 3 series vaccine
Hepatitis B
trmt
No trmt bc it resolves on its own
For chronic hep B give immune modulators (INF) and antiviral agents in nucleoside analogues (lamivudine)
Hepatitis B
complications
Cirrhosis in pts with chronic hep B and HBV or HCV
Pts with cirrhosis at risk for hepatocellular carcinoma
skin sx cirrhosis
Jaundice, palmar erythema, Spider angioma, Ecchymosis, Dilated abdominal wall veins, Xerotic eczema, Caput medusae, Hemochromatosis- inc pigmentation, Xanthomas- primary biliary cirrhosis, Needle tracts- viral hepatitis
MCC portal hypertension
ascites
MC blood borne infection
Acute Hepatitis C
Leading cause of chronic liver failure
Acute Hepatitis C
MC indication for liver transplant
Acute Hepatitis C
Acute Hepatitis C
cause
HCV- RNA virus
Acute Hepatitis C
transmission
Bloodborne
Transmitted by IV drug use (MC), transfusion, sexual activity, and tattoos previously (think needles)
Acute Hepatitis C
sx
Mostly asymptomatic
Jaundice, abd pain, anorexia, malaise… nonspecific
Acute Hepatitis C
dx
Enzyme immunoassay (EIA) to look for anti-HCV antibody- dont do often Then do Recombinant immunoassay (RIBA) to confirm if this is + HCV RNA PCR- we do this now High AST/ALT and bilirubin
Acute Hepatitis C
trmt
INF + any -vir drug
in hep C:
Genotype 1 and 4 have ____ response to trmt
Genotype 2 and 3 have ____ response to trmt
____ less likely to respond to trmt
poor
better
AA/males
Important historical breakthrough… over 95% of pts show response in this disease but…
Expensive… 50-90K
Acute Hepatitis C
Acute Hepatitis C
trmt goals
Get rid of infection
Slow disease progression
Improve QOL
Sustained virological response: aviremia 12-24 wks after antiviral therapy
MCC of cirrhosis
Alcoholic cirrhosis
Alcoholic cirrhosis
cause
4 beers a day for ten yrs
Malnourished and anemic bc ppl drink more than they eat
Alcoholic cirrhosis
dx
AST>ALT
High bilirubin
Alcoholic cirrhosis
trmt
Stop drinking
Transplant
Nonalcoholic steatohepatitis/fatty liver (NASH)
sx
Most asymptomatic
Fullness in RUQ, fatigue, malaise, hepatomegaly
Nonalcoholic steatohepatitis/fatty liver (NASH)
dx
High ALT and AST No infectious hepatitis HLD Inc PTT and bilirubin, hypoalbuminemia US/CT/MR shows fatty liver Biopsy makes dx
dx for Nonalcoholic steatohepatitis/fatty liver (NASH)
is based on
histological findings
criteria for NASH
Based on histological findings
Low alcohol consumption
No serological evidence of other disease
Biopsy: macrovesicular steatosis or steatohepatitis
NASH can lead to
Can lead to insulin resistance
Nonalcoholic steatohepatitis/fatty liver (NASH)
trmt
Lose weight, control HLD and hyperglycemia, liver transplant
MC metastatic CA
Hepatocellular neoplasms
Hepatocellular neoplasms
come from
lung, colon, breast, prostate
Hepatocellular carcinoma aka
hepatoma
Hepatocellular carcinoma cause
Hep B and C
Hepatocellular carcinoma sx
Weight loss
Signs of cirrhosis
Hepatocellular carcinoma dx
US MC
AFP (alpha fetoprotein) tumor marker present
Hepatocellular carcinoma trmt
Transplant or resection
Hemochromatosis inheritance
autosomal recessive
Hemochromatosis?
Inc iron in various organs
Hemochromatosis sx
Arthralgias, hepatomegaly, gray skin, DM, ED
Hemochromatosis dx
Hallmark: inc % transferrin saturation and high serum transferrin
Hemochromatosis trmt
Weekly phlebotomy
Wilson’s disease?
Disorder of copper transport and copper accumulates in liver, brain, kidneys and cornea
Wilson’s disease
sx
Looks like acute or chronic liver disease (malaise, high LFT)
hallmark: Kayser- fleischer gold ring in iris periphery
Low serum ceruloplasmin
Diagnostic: urine copper
Wilson’s disease
trmt
Penicillamine
Autoimmune hepatitis?
Chronic inflammation of the liver dt circulating autoantibodies
Autoimmune hepatitis
sx
Jaundice, fatigue, anorexia, nausea, abd pain, pruritus, arthralgia
Autoimmune hepatitis
dx
Antinuclear Ab (ANA), anti smooth mc Ab (ASMA) Liver biopsy shows inflammation
Autoimmune hepatitis
trmt
Transplant No hepatotoxins (in meds)
Acetaminophen poisoning?
7.5-10g APAP over 24 hrs
Acetaminophen poisoning
sx
0-24 hrs nausea vomiting, anorexia
24-72 hrs RUQ pain, inc AST and ALT
72-96 hrs ast and alt peak
Over 5 days revolution or death
Acetaminophen poisoning
dx
APAP in blood
Acetaminophen poisoning
trmt
N-acetylcysteine
Liver transplant
MELD- model for end stage liver disease?
Predicts disease severity and mortality in pts with hepatic dysfunction
Helps us give priority too liver transplant pts
MELD- model for end stage liver disease calculation?
Calculated using bilirubin, creatinine, and INR