2- Alcoholic liver disease & Liver CA Flashcards
What are the 3 main patterns of injury associated w/ ALD?
Fatty liver, alcoholic hepatitis, chronic hepatitis w/ fibrosis or cirrhosis
What classifies a “heavy drinker”?
60 g/d x 2 wks
What is the relationship b/w alcohol consumption and risk of liver injury?
Dose dependent (not linear)
The following are risk factors for what?
- Increased alcohol consumption
- Beer or spirits > wine
- Drinking outside of meal times
- > 1 drink/ day in F or > 2 drinks/day in M
- Pattern of consumption
- Increased BMI
- Genetics
- CLD
- Smoking
RF for ALD
How is binge drinking defined?
4 drinks over 2 hrs in F VS 5 drinks over 2 hrs in M
What is classified as “safe drinking”?
1 drink/day in F VS 2 drinks/day in M
What disease is a due to an accumulation of fat in cytoplasm of liver cells?
Fatty liver (hepatic steatosis)
**Mallory-Denk bodies + neutophilic lobar inflammation
Clinical dx w/ liver biopsy confirmation
How does a pt w/ fatty liver typically present?
Asymptomatic and self limited
Is fatty liver disease reversible if a pt stops drinking?
Yes
In what time frame can you expect to see reversal of the ALD if Pt stops drinking?
4-6 wks
If pt w/ fatty liver disease continues to drink what is the disease progression?
Alcohol hepatitis + cirrhosis
What is the tx for pt w/ FLD?
Lifestyle mod (weight loss and exercise) and alcohol cessation
What disease is defined as inflammation of the liver characterized by necrosis and fibrotic scaring?
Alcohol hepatitis (AH)
What is the biggest RF for AH?
Chronic or current heavy alcoholic consumption
(>2 drinks/day for women vs > 3 drinks/day men x 5 yrs)
What will increase a pt w/ AH risk for permanent liver damage?
Continued alcohol abuse
AH presents on a spectrum of mild to severe. What might you find on exam for a pt w/ severe AH?
Jaundice Hepatic encephalopathy Hepatosplenomegaly w/ liver TTP Edema (scrotal or LE) Ascites Variceal bleeding
What are the lab findings for pt w/ AH?
Leukocytosis, macrocytosis, thrombocytopenia,
AST/ALT ≥ 1.5 (AST 2-6 ULN), hyponatremia, hypokalemia, elevated: bili (>3), PT/INR, GTP + low albumin + folate
What will histology show for pt w/ AH?
Mallory-Denk Bodies
Neutophillic lobular inflammation
What is probable AH?
Clinically dx w/o confounding factors
*confounding factors: Pt denies ETOH abuse, hx of ischemic hepatitis (drug abuse), atypical labs
What is possible AH?
Clinically dx w/ confounding factors
*confounding factors: denies ETOH abuse, hx of ischemic hepatitis (drug abuse), atypical labs, hx metabolic liver disease (Wilson’s)
What does the “model for end stage liver disease” (MELD) calculate?
Mortality rate in 90 days
What dose Maddrey’s discriminant function (mDF) calculate?
MDF ≥ 32 predicts 30-50% mortality @ 28 days
What does the Lille Model calculate?
Response to steroids
What is the tx for severe AH (MELD score > 20, mDF ≥ 32)
- Hospitalize
- 40 mg prednisolone +/- IV n-acetylcysteine (if steroids determined appropriate by Lille model)
- Stop BB
What is the single MOST important factor for survival in all pts w/ AH and ALD
Cessation + complete abstinence of alcohol
What disease is failure of the liver to detoxify noxious agents of gut origin, because of hepatocellular dysfunction and portosystemic shunting resulting in pairment of brain function?
Hepatic encephalopathy
What is the best known neurotoxin that can precipitate HE?
Ammonia
What are the sx of Grade I HE?
Changes in behavior, mild confusion, slurred speech, disordered sleep pattern (encephalopathy)
What are the sx of Grade II HE?
Lethargy, moderate confusion
What are the sx of Grade III HE?
Marked confusion (stupor), incoherent speech, sleepy but can arouse
What are the sx of Grade IV HE?
Coma, unresponsive to pain
What is Asterixisis? What disease is it a sx of?
Visible tremor when UE in flexion in shoulders in wrists.
Hepatic encephalopathy
What is the Stroop test used to evaluated in pts w/ HE?
Cognitive screening tool used to evaluated psychomotor speed and cognitive flexibility
Variceal bleeding, ascites, and jaundice are sx of what?
Severe alcoholic hepatitis (≥ 32 or MELD > 20)
What is the tx for AH?
TX alcohol withdrawal
Diuretics (lasix, Spironolactone)/ Sodium restricted diet
TX Hepatic encephalopathy: Lactulose, Rifaximin
Steroids if severe
What is the next step if pt w/ AH is not responsive to steroid tx by day 7?
D/C => Liver transplant
What liver pathology is characterized by widespread destruction and regeneration of liver disease w/ marked increased in fibrotic connective tissue?
Cirrhosis
What is compensated cirrhosis and how does it present?
Portal pressure < 10
Splenomegaly
What is the median survival for compensated cirrhosis?
12 yrs
What is decompensated cirrhosis? How does it present?
Increased portal pressure w/ decreased liver function resulting in porto-systemic shunting Esophageal and rectal varices Dilated abdominal veins (caput medusae) Jaundice Encephalopathy
What is the median survival decompensated cirrhosis?
2 yrs
If compensated cirrhosis is left untx, it will progress to what?
Decompensated cirrhosis
Portal hypertension is associated with what liver pathology?
AH and decompensation cirrhosis
What is portal HTN?
Increased pressure w/in the portal venous system
What are the 3 possible sites of obstruction to flow in the portal venous system?
- Pre-hepatic: portal vein thrombosis
- Intrahepatic: cirrhosis
- Post-hepatic: CHF, pericarditis
What is the tx for cirrhosis?
TX/ prevent complications of portal HTN and cirrhosis
- Variceal surveillance (EGD)
- Hepatocellular CA surveillance (US q 6 mos + AFP)
- BB prophylaxis to prevent variceal bleeding (avoid if SBP < 90)
What is the tx for ascites?
- Low NA diet
- Diuretics (Lasix, Spironolactone)
- Fluid restriction ONLY if NA M 125
What is TIPS procedure? When it is done?
Transjugular intrachepatic portosystemic shunt
Reduces ascites, variceal hemorrhage, improves QoL - 75% success rate
What is given to pts that have > 5 L removed in a therapeutic paracentesis for ascites? Why?
6-8 g of albumin for each liter drained to prevent kidney injury
When is liver transplant considered?
Pt w/ decompensated cirrhosis, MELD ≥ 15
What is required for pt to be eligible for liver transplant
Abstinence from alcohol before and after transplant
What is the prognosis for pt w/ alcoholic fatty liver disease?
Complete resolution in 4-6 weeks IF alcohol is stopped
What is the prognosis for alcoholic hepatitis?
Based on severity.
Need to d/c ETOH before disease becomes irreversible
What is the prognosis for alcoholic cirrhosis?
If pt continues to drink, 4 yrs survival < 20%
All pts w/ cirrhosis should be screen for esophageal varices w/ what?
EGD
All pts w/ cirrhosis should be screen q 6 mos with what imaging and AFP?
Abd US
Spontaneous bacterial peritonitis is a complication of what?
Cirrhosis
What is the dx criteria for heptarenal syndrome?
- Decompensated liver disease/liver failure
- Absence of shock
- Renal impairment
- No improvement w/ correction of volume status + albumin x ≥ 2 days
- Absence of other AKI causes
Labs for pt w/ hepatorenal syndrome will show what?
Azotemia (increased BUN)
What is hepatorenal syndrome?
Functional renal failure in the setting of decompensated liver disease/liver failure
How is Type 1 hepatorenal syndrome defined?
Rapid + progressive renal failure w/ severe multi-organ failure
- survival ≤ 4 wks
- ≥ 2x increase in serum Cr (>2.5) in less than 2 wks
How is Type 2 hepatorenal syndrome defined (less severe than Type 1)?
Associated w/ refractory ascites- Median survival 6 mos
What is used to prevent HRS?
- IV albumin if > 5 L drained in paracentesis
- EGD surveillance + BB to protect against GI bleeding
- ABX prophylaxis for SBP
What is NOT used in the prevents on HRS?
NSAIDs or supplements
When should ABX prophylaxis be given for SBP? What is typically given?
Bactrim DS or Cipro 500 mg QD if pt w/ - Previous dx of SBO - Ascetic protein < 1.5 IV Ceftriaxone if pt w/ - Variceal bleed x 3-7 days
What imaging findings are associated w/ a benign liver lesion that don’t require any intervention?
Cavernous hemangioma < 4cm
Focal nodular hyperplasia
Simple ASX cyst
Focal fatty change/sparring
What imaging findings are associated w/ a benign liver lesion that require intervention/GI referral?
Adenoma (associated w/ OCP)
Liver abscess
Inflammatory pseudotumor
Atypical/complex cyst
What are malignant liver lesions?
Metastases Lymphoma Primary liver neoplasms - HCC - Cholangiocarcinoma - Rare tumors (cystadenocarcinoma, angiosarcoma)
What malignant liver lesion arises from the parenchymal cells?
Hepatocellular carcinoma (HCC)
What malignant liver lesion arises from the biliary duct cells?
Cholangiocharcinomas
What is the most common form of liver cancer?
Hepatocellular carcinoma
If cirrhotic or non-cirrhotic Hep B pt presents w/ liver imaging on lesion. What should you be suspicious for?
HCC
*Screen all cirrhosis pts.
Pts w/ Hep B screen q 6 most + AFP
What are the sx of HCC?
Unintentional weight loss, sudden onset ascites, elevated AFP
How is HCC dx?
CT
*If non-diagnostic then triphasic MRI w/ gadolinium contrast
Liver biopsy is diagnostic BUT risk of tumor seeding
Who do you screen for HCC?
All pts at high risk for liver CA
If pt w/ known cirrhosis is found to have 2 cm solid liver lesion. What is your next step?
Triphasic CT scan
Is coffee good for the liver?
YES