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Training of Trainers on Clinical
Management of Viral Hepatitis
Learning objectives
At the end of this session, the learners shall understand the
following:
• Issues related to HBV management in special patient groups
• Recommended treatment strategies for such people
• Identify the appropriate treatment strategy for a given patient
Acute HBV infection
• Nearly all immunocompetent adults with acute HBV infection
have spontaneous recovery from illness and viral clearance
• Hence, no antiviral therapy needed for uncomplicated
symptomatic acute hepatitis B
Severe/ Fulminant Acute HBV infection
• A few patients with acute hepatitis B have
fulminant (acute liver failure) or severe acute hepatitis
• Such patients may benefit from short-term antiviral drugs
(entecavir or tenofovir)
• Duration of treatment in fulminant or severe acute HBV
– is not established till date
– Suggested:
• If HBsAg is lost: 3 months after appearance of anti-HBs
• If HBsAg persists: 12 months after appearance of anti-HBe
HBV/HIV co-infection: Outcomes
HIV co-infection results in
• More rapid progression to cirrhosis
• Higher risk for HCC
• Higher liver-related mortality
• Decreased treatment response ( faster decline of CD4, slower
CD4 recovery after ART)
 As compared to HBV monoinfection.
HBV/HIV co-infection: other considerations
• Cross-resistance between HIV and HBV drugs
• Increased risk of liver injury ( 17 TIMES )
– ART-related immune-reconstitution can lead to increased
hepatocyte killing >> worsening of liver injury
– Anti-HIV drugs can induce direct hepatotoxicity
• Severe liver injury may lead to fulminant hepatitis and death
Therefore important to consider suppression of HBV
HBV/HIV co-infection
• ART shall be started in all co-infected person, regardless of
CD4 count (irrespective of HBV infection)
• Choice of ART should be based on drugs that are active
against both HIV and HBV
– Tenofovir (TDF)
– Lamivudine (3TC)
– Emtricitabine (FTC)
HBV/HIV co-infection
HBV-HCV coinfection
• Indications for treatment of HBV infection in such patients are
similar to those for HBV mono-infection
• Treatment of HCV infection may lead to increased replication
of HBV
• If treatment is indicated for HBV infection, this should be
started and HBV suppression should be achieved before the
treatment for HCV is instituted
Children and adolescents
• Children with HBV infection
– Usually asymptomatic
– Mostly in immune-tolerant phase
• Treatment is not considered in this phase due to
– Low curative response rates
– Concerns about long-term safety
– Risk of drug resistance (immunotolerant -- very high viral load)
• Entecavir is approved for children above 2 years
• Tenofovir is approved for children above 12 years
Pregnant women
• Indications for treatment are identical to those for
non-pregnant women
• Tenofovir is recommended
• There is no recommendation on the routine use of antiviral
therapy to prevent mother-to-child HBV transmission
• Hepatitis B in a pregnant woman is not a reason for
considering termination of pregnancy. Similarly, the need for
caesarean delivery should be decided based on obstetric
indications, and not on the presence of HBV infection.
Pregnant women
• All infants should receive a birth dose of hepatitis B vaccine
followed by three doses
• Administration of hepatitis B vaccine to pregnant women with
HBV provides no benefit either to the mother or the baby.
Care of the baby
 Immunoprophylaxis of hepatitis B virus infection:
– Vaccination
Newborn baby should adminstered a timely first dose ( THE
BIRTH DOSE) of hepatitis B vaccine ( monovalent) as soon as
possible. Ideally within 24 HOURS.
‘THE SOONER THE BETTER’
Site : IM in the anterolateral aspect of mid thigh.
Dose : Birth dose f/b 3 doses ,0.5 ml, @ 6th 10th & 14th week.
Immunoglobulin (HBIg): Indicated when risk of transmission is
particularly high i.e.
– Babies born to mothers with HepB who also have detectable
HbeAg and have high viral load.
– Dose : 0.5 ml or 100 IU, IM
– Soon after birth ( within 12 to 24 hours )
 Limb other than the one in which HepB vaccine has been
administered.
 Breastfeeding : Mother having HepB may breastfeed her baby
unless there is
1. an exuding injury.
2. disease of nipple or surrounding skin.
 advantage far outweighs risk.
 Timing of testing: If felt that baby needs to be tested for
HepB, should be done only after one year of age.
 Difficult to interpret before this age and may resolves
spontaneously over time.
HBV WITH RENAL FAILURE
• Among the newer NA’s, Entecavir may be preferred, because
of high potency, high genetic barrier to resistance, and
favourable renal safety profile.
• All HBsAg- positive candidates should be treated with NA’s
before renal transplantation in order to maintain
undetectable HBV DNA, REDUCED LIVER FIBROSIS & prevent
HEPATIC DECOMPENSATION after renal transplantation.
HBV AND TB
• Interestingly first line drugs of Tuberculosis are hepatotoxic.
Recommended:
• Not more than 2 hepatotxic drug if CTP Score <7 in patients
with CLD or liver cirrhosis and stable liver function.
• Only one hepatotoxic drug in those with advanced liver
dysfunction (CTP 8-10).
• And no hepatotoxic drugs with CTP> 10.
THANK YOU…

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17_HBV_treatment_3 _special situation..............ppt

  • 1. Training of Trainers on Clinical Management of Viral Hepatitis
  • 2. Learning objectives At the end of this session, the learners shall understand the following: • Issues related to HBV management in special patient groups • Recommended treatment strategies for such people • Identify the appropriate treatment strategy for a given patient
  • 3. Acute HBV infection • Nearly all immunocompetent adults with acute HBV infection have spontaneous recovery from illness and viral clearance • Hence, no antiviral therapy needed for uncomplicated symptomatic acute hepatitis B
  • 4. Severe/ Fulminant Acute HBV infection • A few patients with acute hepatitis B have fulminant (acute liver failure) or severe acute hepatitis • Such patients may benefit from short-term antiviral drugs (entecavir or tenofovir) • Duration of treatment in fulminant or severe acute HBV – is not established till date – Suggested: • If HBsAg is lost: 3 months after appearance of anti-HBs • If HBsAg persists: 12 months after appearance of anti-HBe
  • 5. HBV/HIV co-infection: Outcomes HIV co-infection results in • More rapid progression to cirrhosis • Higher risk for HCC • Higher liver-related mortality • Decreased treatment response ( faster decline of CD4, slower CD4 recovery after ART)  As compared to HBV monoinfection.
  • 6. HBV/HIV co-infection: other considerations • Cross-resistance between HIV and HBV drugs • Increased risk of liver injury ( 17 TIMES ) – ART-related immune-reconstitution can lead to increased hepatocyte killing >> worsening of liver injury – Anti-HIV drugs can induce direct hepatotoxicity • Severe liver injury may lead to fulminant hepatitis and death Therefore important to consider suppression of HBV
  • 7. HBV/HIV co-infection • ART shall be started in all co-infected person, regardless of CD4 count (irrespective of HBV infection) • Choice of ART should be based on drugs that are active against both HIV and HBV – Tenofovir (TDF) – Lamivudine (3TC) – Emtricitabine (FTC)
  • 9. HBV-HCV coinfection • Indications for treatment of HBV infection in such patients are similar to those for HBV mono-infection • Treatment of HCV infection may lead to increased replication of HBV • If treatment is indicated for HBV infection, this should be started and HBV suppression should be achieved before the treatment for HCV is instituted
  • 10. Children and adolescents • Children with HBV infection – Usually asymptomatic – Mostly in immune-tolerant phase • Treatment is not considered in this phase due to – Low curative response rates – Concerns about long-term safety – Risk of drug resistance (immunotolerant -- very high viral load) • Entecavir is approved for children above 2 years • Tenofovir is approved for children above 12 years
  • 11. Pregnant women • Indications for treatment are identical to those for non-pregnant women • Tenofovir is recommended • There is no recommendation on the routine use of antiviral therapy to prevent mother-to-child HBV transmission • Hepatitis B in a pregnant woman is not a reason for considering termination of pregnancy. Similarly, the need for caesarean delivery should be decided based on obstetric indications, and not on the presence of HBV infection.
  • 12. Pregnant women • All infants should receive a birth dose of hepatitis B vaccine followed by three doses • Administration of hepatitis B vaccine to pregnant women with HBV provides no benefit either to the mother or the baby.
  • 13. Care of the baby  Immunoprophylaxis of hepatitis B virus infection: – Vaccination Newborn baby should adminstered a timely first dose ( THE BIRTH DOSE) of hepatitis B vaccine ( monovalent) as soon as possible. Ideally within 24 HOURS. ‘THE SOONER THE BETTER’ Site : IM in the anterolateral aspect of mid thigh. Dose : Birth dose f/b 3 doses ,0.5 ml, @ 6th 10th & 14th week.
  • 14. Immunoglobulin (HBIg): Indicated when risk of transmission is particularly high i.e. – Babies born to mothers with HepB who also have detectable HbeAg and have high viral load. – Dose : 0.5 ml or 100 IU, IM – Soon after birth ( within 12 to 24 hours )  Limb other than the one in which HepB vaccine has been administered.
  • 15.  Breastfeeding : Mother having HepB may breastfeed her baby unless there is 1. an exuding injury. 2. disease of nipple or surrounding skin.  advantage far outweighs risk.  Timing of testing: If felt that baby needs to be tested for HepB, should be done only after one year of age.  Difficult to interpret before this age and may resolves spontaneously over time.
  • 16. HBV WITH RENAL FAILURE • Among the newer NA’s, Entecavir may be preferred, because of high potency, high genetic barrier to resistance, and favourable renal safety profile. • All HBsAg- positive candidates should be treated with NA’s before renal transplantation in order to maintain undetectable HBV DNA, REDUCED LIVER FIBROSIS & prevent HEPATIC DECOMPENSATION after renal transplantation.
  • 17. HBV AND TB • Interestingly first line drugs of Tuberculosis are hepatotoxic. Recommended: • Not more than 2 hepatotxic drug if CTP Score <7 in patients with CLD or liver cirrhosis and stable liver function. • Only one hepatotoxic drug in those with advanced liver dysfunction (CTP 8-10). • And no hepatotoxic drugs with CTP> 10.

Notas del editor

  1. Immunoprophylaxis of hepatitis B virus infection The newborn baby should be administered a timely first dose (the ‘birth dose’) of hepatitis B vaccine (monovalent) as soon as possible after birth, ideally within 24 hours. Even within this time duration, the earlier it can be administered, the better. If, for some reason, the birth dose is not administered within 24 hours, it should still be administered as soon as it is possible and not omitted. This dose is administered intramuscularly in the anterolateral thigh. This birth dose must be followed by timely administration of 3-doses of hepatitis B-containing vaccine [e.g. monovalent hepatitis B vaccine, tetravalent combination vaccine with DPT (DPT-Hep B) or a pentavalent vaccine (DPT+Hep B+Hib)]. The hepatitis B vaccine birth dose followed by these three doses is the most effective method for prevention of mother-to-child transmission of hepatitis B. Hepatitis B immunoglobulin (HBIG) may provide some additional protection in situations where risk of transmission is particularly high – i.e. babies born to mothers with hepatitis B who also have detectable detectable HBeAg and/or high viral load. However, additional benefit provided by it, over properly-administered hepatitis B vaccine (as described above) is small. Also, HBIG is costly and has limited availability. If a decision is taken to administer HBIG (0.5 ml or 100 international units, intramuscular), this should be done as soon after birth as possible (and within 12-24 hours) and in a limb other than the one in which hepatitis B vaccine has been administered. Data on benefit and risks of administering anti-hepatitis B drugs to the pregnant women for prevention of mother-to-child transmission are unclear. Breast feeding A mother who has hepatitis B may breast feed her baby, unless there is an exuding injury or disease of the nipple or surrounding skin. The advantages of breast feeding far outweigh the risk, if any, of transmission of hepatitis B to a baby who has received hepatitis B vaccine. Timing of testing If it is felt that the baby needs to be tested for hepatitis B, this should be done only after 1 year of age. Any positivity before this age is difficult to interpret and may resolve spontaneously over time.