hepatitis ppt
DESCRIPTION
Hepatitis adalah kelainan hati berupa peradangan (sel) hati. Peradanganini ditandai dengan meningakatan kadar enzim hati. Peningkatan ini disebabkanadanya gangguan atau kerusakan membran hati. Ada dua faktor penyebabnyayaitu faktor infeksi dan faktor non infeksi. Faktor penyebab infeksi antara lainvirus hepatitis dan bakteri. Selain karena virus Hepatitis A, B, C, D, E dan Gmasih banyak virus lain yang berpotensi menyebabkan hepatitis misalnyaadenoviruses , CMV , Herpes simplex , HIV , rubella ,varicella dan lain-lainTRANSCRIPT
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HEPATITIS
Diah Puspita Rini, dr., SpPK
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• Hepatitis is inflammation of the liver which can be caused by viruses, medications, or toxic agents.
• Non viral : miliary TB, staphylococcal bacteriemia, salmonelloses, amebiasis, drugs, etc.
• Viral hepatitis :, Hepatitis A,B,C,D,E
CMV, Herpes, Epstein Barr virus, Rubella
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Viral Hepatitis
3
Click to add Title
Click to add Title
Hepatitis A1
2
3
4
Hepatitis E5
Hepatitis G6
Hepatitis TT7
Hepatitis Sen8
Hepatitis B
Hepatitis D
Hepatitis C
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VIRAL HEPATITIS
4
Liver Cirrhosis
A Major Public Health ProblemsA Major Public Health Problems
• Cause Morbidity & Mortality• Chronic Hepatitis B & C
HCC
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a short, mild, flu-like illnessnausea, vomiting and diarrhoealoss of appetiteweight lossjaundice (yellow skin and white of eyes, darker yellow urine and pale faeces)
itchy skinabdominal pain
SYMPTOMS
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Source ofvirus
feces blood/blood-derived
body fluids
blood/blood-derived
body fluids
blood/blood-derived
body fluids
feces
Route oftransmission
fecal-oral percutaneouspermucosal
percutaneouspermucosal
percutaneouspermucosal
fecal-oral
Chronicinfection
no yes yes yes no
Prevention pre/post-exposure
immunization
pre/post-exposure
immunization
blood donorscreening;
risk behaviormodification
pre/post-exposure
immunization;risk behaviormodification
ensure safedrinking
water
Type of HepatitisA B C D E
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Hepatitis A (HAV)
• Due to non enveloped, single stranded RNA picornavirus
• Serum AST and ALT increased to hundreds for 1 to 3 weeks
• Relative lymphocytosis is frequent
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Serologic test for HAV• Ig M anti HAV :
– appears at the same time as syptoms in > 99% of cases
– peaks within first month, becomes nondetectable in 12 (usually 6)
– Presence confirms diagnosis of recent acute infection
• Anti HAV total:– Predominantly IgG – Almost always positive at onset of acute hepatitis and
is usually detectable for life– Found in ± 50% of population, indicaes previous
exposure to HAV
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FecalHAV
Symptoms
0 1 2 3 4 5 6 12
24
Hepatitis A Infection
Total anti-HAV
Titre ALT
IgM anti-HAV
Months after exposure
Typical Serological Course
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Hepatitis B (HBV)
• Due to enveloped, double stranded DNA hepadna virus
• Divided into 3 stages:
1. Acute hepatitis: lasts 1-6 months, mild/ no symptoms AST & ALT increased > tenfolds Serum bilirubin is usually normal or slightly
increased HBsAg gradually arises to high titer and persist,
HBeAg also appears
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2. Chronic hepatitis: transaminase increased > 50% for > 6 months, most cases resolve but some develop cirrhosis and liver failure AST & ALT fall to 2-10x normal range HBsAg usually remains high and HBeAg
remains present
3. Chronic carrier: are usually but not always healthy and asymptomatic AST and ALT fall to normal or < 2x normal HBsAg positive > 6 months, HBc IgM negative,
but anti HBc positive
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Sexual - sex workers and homosexuals are particular at risk.
Parenteral - IVDA, Health Workers are at increased risk.
Perinatal - Mothers who are HBeAg positive are much more likely to transmit to their offspring than those who are not. Perinatal transmission is the main means of transmission in high prevalence populations.
Hepatitis B Virus
Modes of Transmission
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High ModerateLow/Not
Detectable
blood semen urineserum vaginal fluid feces
wound exudates saliva sweat
tearsbreastmilk
Concentration of Hepatitis B Virus in Various Body Fluids
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HBV : Structure
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Hepatitis B Lab MarkersMarker Abbreviation Use
Hepatitis B surface antigen HBsAg Detection of acutely or chronically infected persons; antigen used in hepatitis B vaccine
M class immunoglobulin antibody to hepatitis B core antigen
IgM Anti-HBc Identification of acute or recent HBV infections (including those in HBsAg-negative persons during the “window” phase of infection)
Antibody to hepatitis B core antigen
Anti-HBcHBcAb
Identification of persons with acute, resolved, or chronic HBV infection (not present after vaccination)
Antibody to Hepatitis B surface antibody
Anti-HBs HBsAb
Identification of persons who have resolved infection with HBV; determination of immunity after immunization
Hepatitis B e antigen HBeAg Identification of infected persons at increased risk for transmitting HBV
Antibody to Hepatitis B e antigen
Anti-HBe HBeAb
Identification of infected person with lower risk for transmitting HBV
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HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
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HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBV DNA
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HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBV DNA
HBeAg
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HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBeAg anti-HBe
HBV DNA
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IgM anti-HBc
HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBeAg anti-HBe
Symptoms
HBV DNA
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IgM anti-HBc
HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBeAg anti-HBe
Symptoms
Total anti-HBc
HBV DNA
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IgM anti-HBc
HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBeAg anti-HBe
Symptoms
anti-HBs
Total anti-HBc
HBV DNA
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IgM anti-HBc
HBsAg
0 4 8 12 16 20 24 28 32 36 52 100
Acute Hepatitis B Virus Infection with RecoveryTypical Serologic Course
Weeks after Exposure
Titer
HBeAg anti-HBe
Symptoms
anti-HBs
Total anti-HBc
HBV DNA
Window Period
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IgM anti-HBc
Total anti-HBc
HBsAg
Acute(6 months)
HBeAg
Chronic(Years)
anti-HBe
0 4 8 12 16 20 24 28 32 36 52 Years
Weeks after Exposure
Titre
Progression to Chronic Hepatitis B Virus InfectionTypical Serologic Course
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Acute vs. Chronic HBV Infection
Acute• HBsAg+ < 6 mos.• IgM anti-HBc + positive• Infection will resolve and person will have lifelong
immunity• HBsAb+ and HBcAb+
Chronic• HBsAg + for at least 6 months • Also known as a “carrier”• Infection does not resolve and the person
remains infectious• HBsAb- and HBcAB+
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Serologic diagnosis of viral hepatitis
Significance HBsAg HBeAg Anti-HBc IgG
Anti-HBc IgM
Anti-HBs IgG
Acute HBV + + - + -
Chronic HBV,
Active replication+ + + - -
Chronic HBV,
quiescent+ - + - -
Resolved HBV - - + + -
Postvaccine
Immune HBV
- - - - +
Quiescent = inactive = quiet
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Possible Outcomes of Hepatitis B Infection
Possible Outcomes of Possible Outcomes of Hepatitis B InfectionHepatitis B Infection
Acute HBVinfection
Recovery
Chronic HBVinfection
Fulminanthepatitis
HBsAgcarrier
Reactivation
Cirrhosis
HCC
Chronic hepatitis BHBeAg-positive
Chronic hepatitis BHBeAg-positive
HDVsuperinfection
Chronic hepatitis BHBeAg-positive
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Prevention• Vaccination - highly effective recombinant vaccines are now
available. Vaccine can be given to those who are at increased risk of HBV infection such as health care workers. It is also given routinely to neonates as universal vaccination in many countries.
• Hepatitis B Immunoglobulin - HBIG may be used to protect persons who are exposed to hepatitis B. It is particular efficacious within 48 hours of the incident. It may also be given to neonates who are at increased risk of contracting hepatitis B i.e. whose mothers are HBsAg and HBeAg positive.
• Other measures - screening of blood donors, blood and body fluid precautions.
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HEPATITIS C (HCV)
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Transfusion or transplant from infected donor Injecting drug use Hemodialysis (yrs on treatment) Accidental injuries with needles/sharps Sexual/household exposure to anti-HCV-
positive contact Multiple sex partners Birth to HCV-infected mother
Risk Factors Associated with
Transmission of HCV
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HCV INFECTION
32
1
6 -7 WEEKS (Range 2 – 26 weeks)
2
60 -80% ASYMPTOMATIC 20- 30% WITH JAUNDICE
80 -85%
CHRONIC HEPATITIS
INCUBATION PERIOD
ACUTE INFECTION
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Symptoms
anti-HCV
ALT
Normal
0 1 2 3 4 5 6 1 2 3 4
Hepatitis C Virus InfectionTypical Serologic Course
Titre
Months
Years
Time after Exposure
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PROGRESSION
• ACUTE HEPATITIS C– 15-40% will spontaneously resolve, generally
within the first 6-18 months after acute onset.– 60-85% will progress to chronic infection
• CHRONIC– 85-90% stable– 10-15% progress to cirrhosis
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PROGRESSION
• CIRRHOSIS– 75% slowly progressive– 25% progress to HCC– 2-4% liver failure
• HCC– Risk increases for every year for a patient
with chronic hepatitis C.– Patients without signs of cirrhosis can develop
HCC
Factors of poor prognosis:-Age >40 years-Alcohol > 50g/Hour-Male gender-Duration of infection-Co-infection HBV/HIV-Tobacco consumption
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Indirect tests: detect antibody against HCV
1. Anti HCV2. RIBA
(recombinant immunoblot assay)
Diagnosisof HCV Infection
Direct tests : components of the
HCV particle
1.HCV RNA(PCR)• Qualitative• Quantitative
2. HCV Core antigenUsefull in detecting window peroid
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Screening of blood, organ, tissue
donors
High-risk behavior modification
Blood and body fluid precautions
Prevention of Hepatitis C
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CASE STUDIES
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Jada went to her doctor for a routine physical. A hepatitis panel was done and her results were as follows:
HBsAg Negative
anti-HBs Positive
anti-HBc Negative
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Question 1
• How would you interpret her results?
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Answer
• She received the hepatitis B vaccine and is protected (immune)
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Jeff went in for a routine annual physical. His doctor decided to run a hepatitis panel. His results are as follows:
HBsAg Positive
anti-HBs Negative
anti-HBc Positive
IgM anti-HBc Positive
HBeAg Positive
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Question 1
• How would you interpret his results?
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Answer
• He has acute hepatitis B infection.
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Soal Kasus• Laki2 datang dengan keluhan demam 14
hari, sklera tampak ikterus, nyeri tekan abdomen kanan atas
• Pemeriksaan Lab apa yg anda usulkan?– HBsAg (-)– HBsAb (+)– IgM anti HAV (+)– anti HBc (-)
• Apa diagnosis pasien ini?
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??QUESTIONS??