Jaundice resident survival guide

Jaundice Resident Survival Guide
Overview
Causes
Diagnosis
Treatment
Do's
Don'ts

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Synonyms and keywords:

Overview

The classic definition of Jaundice is a serum bilirubin level higher than 2.5 to 3 mg per dL (42.8 to 51.3 μper L) in conjunction with a clinical picture of yellow skin and sclera. Bilirubin metabolism takes place in three phases; "prehepatic", "intrahepatic", and "posthepatic". The causes of jaundice can be classified under these categories by measuring total bilirubin and its conjugated and unconjugated levels determine where is the dysfunction of bilirubin metabolism.

Causes

Life Threatening Causes

Life-threatening causes include conditions that may result in death or permanent disability within 24 hours if left untreated.

• Ascending cholangitis
• Sepsis
• Acute liver failure( the combination of jaundice with hepatic encephalopathy)

Common Causes

of acute Jaundice[2]

• Gilbert syndrome
• Alcoholic hepatitis
• Viral hepatitis
• Obstructive Jaundice due to Choledocholithiasis or Malignancy
• Decompensated chronic liver disease

of chronic progressive Jaundice

• Cirrhosis
• Pancreatic cancer

Diagnosis

Shown below is an algorithm summarizing the diagnosis of jaundice.

Characterize the jaundice duration and frequency ❑ Duration: short versus long ❑ Frequency: episodic vesus constant

Ask about assoaciated symptoms ❑ Abdominal pain (episodic or constant) ❑ Abdominal distension ❑ Fever ❑ Clay colored stool ❑ Dark urine ❑ Weight gain or loss ❑ Anorexia ❑ Dyspepsia ❑ Arthralgia ❑ Myalgia ❑ Back pain ❑ Rash ❑ Confusion

Inquire about ❑ Past medical history ❑ Blood disorder ❑ Liver diseases ❑ biliary diseases ❑ Pancreatic disease ❑ Cardiac disease ❑ Infectious disease ❑ HIV ❑ Malaria ❑ Etc ❑ Family history of ❑ Hemolytic anemias ❑ Congenital hyperbilirubinemia ❑ Wilson disease ❑ Medication history ❑ Parentral exposure ❑ Blood transfusion ❑ Iv drug abuse ❑ Recent travel history ❑ Social history ❑ Excess alcohol intake ❑ Sexual history

Examine the patient General Appearance ❑ Check for: ❑ Pale skin (hemolysis/cancer/cirrhosis) ❑ Gross weight loss (cancer/severe malabsorption) ❑ Fetor hepaticus ❑ Flapping tremor (impending hepatic coma) Skin exam ❑ Check for: ❑ Scratch marks ❑ Melanin pigmentation ❑ Xanthoma of eyelids (chronic cholestasis) ❑ Signs of liver disease: spider nevi, palmar erythema ❑ Bruising, purpuric spots, clotting defects due to thrombocytopenia of cirrhosis Cariac exam ❑ Check JVP (right sided heart failure) full abdominal exam ❑ Size and consistency of liver and spleen ❑ A grossly enlarged nodular liver or an obvious abdominal mass suggests malignancy ❑ Small liver can be seen in (severe hepatitis/cirrhosis) ❑ An enlarged tender liver could be due to: ❑ Viral hepatitis ❑ Alcoholic hepatitis ❑ An infiltrative process such as amyloidosis ❑ Acutely congested liver secondary to right-sided heart failure) ❑ Check gall bladder area if it is tender ❑ Positive murphy sign due to choledocholithiasis ❑ Palpable, visibly enlarged GB can be due to pancreatic ca ❑ Splenomegaly can be seen in hemolytic states, Hodgkin’s lymphoma, portal hypertension ❑ Ascites due to cirrhosis/abdominal malignancy caput medosa Extremity examination ❑ Ankle edema due to: ❑ cirrhosis ❑ IVC obstruction due to hepatic or pancreatic malignancy

Order ❑ Blood tests ❑ CBC ❑ Total Bilirubin ❑ Conjugated or unconjugated bilirubin ❑ Metabolic panel ❑ LFT ❑ γ-glutamyltransferase ❑ INR ❑ prothrombin time ❑ Urine ❑ Bilirubin ❑ Urobilinogen

Isolated unconjugated hyperbilirubinemia

Isolated conjugated hyperbilirubinemia

Unconjugated & conjugated hyperbilirubinemia

❑Inquire about Any recent trauma hematoma blood transfusion

❑Dubin-Johnson syndrome ❑Rotor syndrome

If none of them

With Liver enzyme changes

with ↑ INR,↓ Alb,↓ PLt

❑Check Hb,LDH,Haptoglobin,Rectic count

If ⇈AST/ALT out of proportion to ALK-P

If ⇈Alk-P out of proportion to AST/ALT

Suggestive of Cirrhosis Additional tests Hepatitis serology Iron panel Abdominal Ultrasound Workup for Automimmune hepatitis, NAFLD,Hemochromatosis & other causes of cirrhosis

Abnormal

Normal

Hepatocellular pattern

Cholestatic pattern

Start workup of hemolytic anemia with blood smear & coombs

❑Gilbert syndrome ❑Crigler-Najjar type I,II

Additional work-up for specific diseases Viral hepatitis serology(e.g. HAV,HBV,HCV) Toxicology screen Acetaminophen level Cereuloplasmin if patient<40 years of age Autoantibodies(ANA,Anti-sm,LKM,...) Ferritin & TIBC HbA1c Pregnancy test a1-antitrypsin ❑Consider work-up for rare cases Liver biopsy if results negative

Ultrasound

Consider following based on the results: ❑ Sickle cell disease ❑ Hereditary spherocytosis ❑G6PD deficiency ❑ Medications effect ❑ Immune-mediated hemolysis

Consider following based on the results: ❑ Viral hepatitis ❑ NAFLD(Non-alcoholic liver disease) ❑ Alcoholic liver disease ❑ Metabolic/genetic diseases Hereditary hemochromatosis Wilson's disease Alpha-1 antitrypsin deficiency ❑ Drug-induced and supplemental-induced injury Acetaminophen,kavakava ❑ Pregnancy AFLP,HELLP ❑ Autoimmune hepatitis ❑Ischemic hepatitis

Bile ducts dilated

Bile ducts not dilated

ERCP/CT

Additional work-up for intrahepatic cholestasis Hepatitis serology Autoantibodies for autoimmune hepatitis Review drugs MRCP/Liver biopsy

❑CBD stones ❑Biliray stricture ❑Worms/flukes ❑Cholangiocarcinoma Extrahepatic sources: ❑Pancreatic cancer

Consider following based on the results: Primary biliary cirrhosis PSC Drugs TPN Sepsis Infiltrative diseases: Sarcoidosis Amyloidosis Malignancy

Treatment

Type of hyperbilirubinemia	Diagnostic Indicators	Management Recommendations
Managment of isolated unconjugated jaundice, hemolytic	Any H/O recent trauma, hematoma or blood transfusion Any recent travel Inquire about medications that can cause hemolysis Any positive family history of hemolytic anemia	 Work-up and detect the cause of hemolysis, if low Hb, High LDH, Low haptoglobin, and reticulocytes present  G6PD deficiency - mostly recover on its own, if progresses to hemolytic anemia, oxygen therapy or blood transfusion may be required. Avoid of precipitants and etiological factors  Spherocytosis, phototherapy and/or exchange transfusion for infants, Folic acid for maintaining erythropoiesis. Splenectomy is the definitive treatment  Sickle cell anemia reduce pain and prevent complications, blood transfusions and supplemental oxygen, as well as a bone marrow transplant.  Immune-related hemolysis – corticosteroids, folic acid is the main line of treatment  Parasitic Infections like malaria are treated with antimalarial drugs like chloroquine, artesunate, lumefantrine, amodiaquine  Ineffective erythropoiesis- iron and folic acid & B12 supplementation, repeated blood transfusions
Managment of isolated unconjugated jaundice, Non-hemolytic	 Gilbert's syndrome does not produce symptoms or adverse effects and patients have a normal life span Crigler-Najjar type I is fatal in early life due to development of kernicterus. Crigler-Najjar type II is compatible with a normal life.	 Phenobarbital can decrease serum bilirubin by enzymatic induction of UDPGT in Crigler-Najjar type II.
Managment of isolated conjugated jaundice	❑Dubin- Johnson syndrome doesn't produce any symptoms and compatible with a normal life span. ❑Rotor's syndrome is a harmless chronic hyperbilirubinemia	❑Suspect for Dubin-Johnson syndrome before considering surgery if the healthy patient with long-standing conjugated hyperbilirubinemia, other normal liver function tests, and a non visualized gallbladder. Hepatic architecture is normal but there is an accumulation of hepatic pigment compatible with melanin in patients with Dubin-Johnson syndrome ❑In Rotor's syndrome the gallbladder opacifies normally with cholecystographic dye and no pigmentation be seen in the liver.
Managment of conjugated & unconjugated hyperbilirubinemia jaundice with ⇈AST/ALT out of proportion to ALK-P'	❑H/O recent travel ❑ Social history: Alcohol, sexual history ❑ Family history of Wilson's disease or hemochromatosis ❑Review medications ❑Pregnancy test HELLP, AFLD ❑Toxicology screen Acetaminophen level ❑Mild elevation in aminotransferase levels in female patients with concomitant autoimmune disorders (e.g., autoimmune thyroiditis, connective tissue diseases) is suggestive of autoimmune hepatitis. ❑Consider work-up for rare cases Liver biopsy if results negative	❑Viral hepatitis Hepatitis A: mostly self-limiting Hepatitis B treated with antiviral medications Hepatitis C is treated with interferons Other Viral infections like EBV, CMV, HSV are treated with Antiviral medications Alcohol hepatitis: Alcohol abstinence, glucocorticoids, pentoxifylline  Wilson"s disease: chelating agents such as D-penicillamine  Drug toxicity treatment(e.g. Acetaminophen, Isoniazid  Autoimmune hepatitis treatment with glucocorticoids
Managment of conjugated & unconjugated hyperbilirubinemia jaundice with ⇈ Alk-P out of proportion to AST/ALT	❑H/O intermittent right upper quadrant pain radiating to the back or right shoulder favors gallstones, fever and chills suggest cholangitis. ❑ H/O biliary tract surgery within 2 years should alert the physician to possible biliary stricture. ❑H/o recent weight loss, constant epigastric or right upper quadrant pain radiating to the back suggests malignancy ❑Icteric patient with extrahepatic obstruction due to gallstones or postsurgical biliary stricture has usually had acute symptoms for less than 2 weeks ❑Those with carcinoma, chronic pancreatitis, or primary sclerosing cholangitis have had symptoms of longer duration ❑ A middle-aged women with a history of itching and autoimmune disease raises the suspicion of primary biliary cirrhosis More than half the people with primary biliary cholangitis do not have any symptoms when diagnosed. Symptoms develop over the next five to 20 years. Those who do have symptoms at diagnosis typically have poorer outcomes. ❑ Commonly used drugs such as antihypertensives (e.g., angiotensin-converting enzyme inhibitors) or hormones (e.g., estrogen) may cause cholestasis ❑Abnormal ALk-p levels may be a sign of metastatic cancer of the liver, lymphoma or infiltrative diseases such as sarcoidosis. ❑ H/O inflammatory bowel disease (most commonly ulcerative colitis) suggest the presence of primary sclerosing cholangitis since about 70% of these cases are associated with inflammatory bowel disease	❑ Obstruction removal by ERCP, PTC, Surgery (e.g.Cholecystectomy or Palliative Bypass procedures such as hepaticojejunostomy if stenting has failed in patients with tumors) Primary biliary cholangitis management: no cure for primary biliary cholangitis, but medications are available for slow the progression and prevent complications of the disease: Ursodeoxycholic acid (UDCA), Obeticholic acid (Ocaliva), Fibrates, Liver transplantation may help prolongs life. ❑Treatments for primary sclerosing cholangitis focus on managing complications and monitoring liver damage. None of the medications has been found to slow or reverse the liver damage associated with this disease.
Managment of conjugated & unconjugated hyperbilirubinemia jaundice with ↑ INR,↓ Alb,↓ PLt	❑Cirrhotic patients with MELD Score> 15 should be referred to liver transplant center ❑Patients with MELD Score< 15 should be treated depending on compensated Cirrhosis or decompensated one	❑Compensated Cirrhosis Mangament Alochol abstinence Antiviral medications for viral hepatitis avoidance of hepatotoxic medications vaccination ❑Decompensated Cirrhosis Managment Managment of complications: Varices, Ascites, Hepatorenal syndrome, Hepatic encephalopathy( Acute liver failure )

Do's

• The content in this section is in bullet points.

Don'ts

• The content in this section is in bullet points.