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Dr. Babitha
Dr. Manvi
Moderator:
Dr. Lakshmikanth
HIV IN PREGNANCY
REFERENCES
 NACO guidelines for ART- 2012
 Williams obstetrics- 23rd edition
 Practical guidelines to high risk pregnancy and
delivery- 3rd edition..Fernando Arias, Shirish
daftary
 Practical obtetric problems- Ian donald, 6th edition
 WHO- consolidated guidelines for use of ART
drugs n treating and preventing HIV infection,
2013
 History
 Virology
 Global scenario
 Burden of the disease in india
 Routes of transmission and progression of the disease
 Testing and management in the ante-natal period
 Intra-partum management
 Post-natal care of the mother and follow-up of the infant
 Contraception
 Post exposure prophylaxis
 Special situations
OVERVIEW
Historical Events
 June 5 1981 – Centre for Disease Control & Prevention –
Reported 5 homosexual men with PCP – Gay Related
Immune deficiency
 1982 – CDC Reported – also seen in non-homosexuals –
AIDS .
 1982 – Luc Montagnier et al, Pasteur Institute – Discovered
the virus & named it Lymphadenopathy associated virus
(LAV).
 1983 – Robert , US – confirmed the virus – called it – Human
T Lymphotropic Virus type III (HTLV – III).
 1986 – Renamed as Human Immunodeficiency Virus (HIV).
VIROLOGY
p24Capsule protein
p17Matrix protein
Single stranded RNA (2 Copies).
Family :- Retroviridae ; Sub-family :- Lentiviridae
RNA genome has 9 genes :-
: 3 Structural (gag, pol, env)
: 6 Regulatory genes .
Two Types of Virus :-
-: HIV I – More Virulent,
global, easily Transmitted
-: HIV II – Less
Transmittable,confined to
Africa.
Replication Cycle Of HIV :-
Global Pandemic
 33.4 million adult individuals infected(2008)
 2.1 million children are infected (2008).
 15.7 million women are infected.
 1.4 million HIV+ pregnant women
Global Scenario
 Negligible number in year 1986 to 5.5 million in year 2006.
 Second highest in the world because of the large size of
the population.
 About 2.4 million AIDS cases in India were documented in
our country
 Over 39% i.e 93600 are women of reproductive age
groups.
 4.4% children are infected
(NACO 2010.)
Indian Scenario - EPIDEMIC
HIV/AIDS – India’s Response
• 1986: 1st case of HIV detected in Chennai
• 1990: HIV/AIDS Cell set up in MoHFW
• 1992: NACP-I launched with a outlay of US$ 84 m
• 1992: National AIDS Control Organisation (NACO)
established within MoHFW
• 1999-2006: NACP-II
• 2007-2012: NACP-III
• NACP IV (2012-2017) on the anvil with projected outlay of
more than US$ 2 billion
Categor
y
NACP-III Definition
A > 1% ANC prevalence in any of the sites in the
last 3 years
B < 1% ANC prevalence in all the sites during last
3 years with > 5% prevalence in any HRG site
(STD/FSW/MSM/IDU)
C < 1% ANC prevalence in all sites during last 3
years with < 5% in all STD clinic attendees or
any HRG, with known hot spots
D < 1% ANC prevalence in all sites during last 3
years with < 5% in all STD clinic attendees or
any HRG OR no or poor HIV data with no known
hot spots
Routes of HIV Transmission, 2012-13
HIV Concentrated in HRG & Bridge Pop.
Source: HIV Sentinel Surveillance 2010-11 – A Technical Brief, NACO
 Acute retroviral syndrome ; fever, night sweats, fatigue,
rash, headache, lymphadenophathy, pharyngitis,
myalgias, arthralgias, nausea, vomiting, diarrhea ; lasts <
10 days
 After symptoms abate ; chronic viremia
COURSE OF THE DISEASE
 Median time = 10 years --- AIDS
 AIDS; generalized lymphadenopathy, oral hairy
leukoplakia, aphthous ulcer, thrombocytopenia,
opportunistic infections ( candida, HSV, TB, CMV,
HPV, PCP, toxoplamosis), Kaposi sarcoma, non-
Hodgkin lymphoma
 Stage I :-
 Asymptomatic or with Persistent generalized
Lymphadenopathy.
 Performance Scale 1 :- Asymptomatic normal activity .
 Stage II :-
Wt.loss < 10% of body wt.
 Minor muco-cutaneous lesions
Herpes zoster within last 5yrs.
 Recurrent URTIs .
 Performance Scale 2 :- Symptomatic, normal activity.
WHO Staging System.
 Stage III :-
 Wt. Loss > 10 % body wt.
 Unexplained chronic diarrhea / persistent fever for > 1month.
Oral candidiasis / hairy Leukoplakia.
 Pulmonary TB within past 1 yr.
Performance Scale 3 :- Bedridden for < 50% of day in last
month.
Stage IV :-
 HIV wasting syndrome.
PCP / CNS Toxplasmosis / Extrapulmonary
cryptococcosis
Cryptosporidiosis / Kaposis Sarcoma / Lymphoma
Extrapulmonary TB / HIV Encephalopathy
Performance Scale 4 :- Bedridden for > 50% of day in
last month.
Screening –
ELISA
Rapid antibody tests.
Dot blot tests
Particle agglutination
HIV spot and comb test
Immunochromatography
Dipstick and comb’s test
Negative if the first test result is negative.
(Revised Training Curriculum Trainer Manual, NACO)
Establishing diagnosis of HIV
Positive results - re-checked by a 2nd & confirmed by an
3rd Rapid test using different antigen or using different
principle & using the same serum/plasma sample as used
in the first test.
In-determinate results are confirmed by ELISA
ELISA + - Declared positive
ELISA – Declared negative
All Pregnant women should be given voluntary counseling &
testing (VCT) with confidentiality. Both partners should be
counseled & tested for HIV in pregnancy.
(NACO).
 Opt out approach is preferable – HIV testing as routine
ANC Care (WHO, ACOG)
 Repeat testing in third trimester is indicated if there is :-
 H/o STDs, illicit drug use, multiple sexual partners.
 Symptoms of acute HIV infection at any time during
pregnancy.
 In areas of high prevalence (5/1000).
HIV Screening in Pregnancy
Agree to test Offer HIV test Opt out
HIV –ve HIV +ve repeat counseling
Post-test offer HIV test at
Counseling subsequent visit
Support
referred to ART centre
MOTHER TO CHILD TRANSMISSION
Parent to child transmission (PTCT) or Vertical transmission or
perinatal transmission is the second most common mode of
transmission of HIV infection in India.
 90% of infections in children are due to MTCT.
Women diagnosed HIV positive during pregnancy should be
informed that interventions (such as antiretroviral therapy,
caesarean section) can reduce the risk of PTCT from 30 -45%
to less than 2%.
15% of new HIV infections each year are caused
by MTCT
WHY DO THE TEST?
Timing Transmission rate
During Pregnancy 20-25 %
During Labour & Delivery 60 – 70 %
During Breastfeeding 15 – 20 %
Overall Without Breastfeeding 15 – 25 %
Overall with Breastfeeding upto 6 mths 20 – 25 %
Overall with Breastfeeding upto 18-24mths 30 – 45 %.
Estimated Risk of PTCT in absence of
interventions
Maternal Factors :-
 CD4 count
 Viral Load
 Viral resistance
 HIV subtype
 Concurrent infections
 STDs & genital
infections
 Maternal malnutrition
 Sexual Practices
 Antiretroviral treatment
Factors which affect MTCT -
Obstetrical Factors :--
 Ruptured membranes
(>4 hrs) Each hr. of ROM increases MTCT by 2%.
 Chorio-amnionitis : STI
 Vaginal delivery
 Intrapartum hemorrhage
 Uterine manipulation
 Invasive procedures
 Prematurity, LBW.
 Instrumental deliveries
 Breast Feeding factors :-
 Duration of breast feeding
Mixed feeding (top feeds + breast milk)
 Breast abscess, nipple fissures, mastitis.
 Oral disease in infant (thrush, sores..)
Factors which affect MTCT
Studies have shown no effect of HIV on
pregnancy.
Increased perinatal mortality related to HIV infection
has been reported in infants in developing countries
due to increase in co morbid conditions
No increase in malformations related to HIV
infection.
Effects of HIV on pregnancy
 Studies have shown pregnancy has no effect
on progression of disease.
 Absolute CD4 counts fall in all pregnant women &
rebound by 50-100 cells/mm3 after child birth.
 Plasma HIV RNA levels tend to remain stable during
pregnancy
Effects of pregnancy on HIV
PPTCT
 Prevention of Parent To Child Transmission
GOALS:
 Primary prevention of HIV in women of child
bearing age
 Prevention of unintended pregnancies in HIV+
women
 Prevention of transmission to the child
 Care and support to the mother, children and
family.
I) Prevention of Primary infection :-
1) Provide Access to Condoms.
2) Behavior change communication (BCC) and social
mobilization campaigns
3) Provide early diagnosis & treatment of STDs.
4) Make HIV testing & counseling widely available.
5) Provide suitable counseling for HIV negative women.
II) Prevention on Unintended Pregnancies
among HIV women :-
 Effective Family planning services can help
prevent unintended pregnancies in HIV infected
women.
 Providing safe & effective contraception & high
quality reproductive health counseling helps to
make informed decisions about pregnancies.
 Goals- improve health and identify risk factors
causing adverse maternal and fetal outcome,
Safe sexual practices
Prevent and manage STD’s
Eliminating alcohol, illicit drug use, tobacco chewing,
cigarette smoking.
Available reproductive options such as IUI, IVF or
ICSI, in sero-discordant couples.
 Educate women about risk factors for peri-natal HIV
transmission, & strategies to reduce those risks.
 Assess indications for antiretroviral regimens
Preconception counseling
 Attain a stable, maximally suppressed maternal viral load.
 Evaluate and treat :-
ARV therapy-associated side effects (e.g. lactic acidosis,
hepatotoxicity)
 Evaluate for appropriate prophylaxis for opportunistic infections
and administration of vaccines (e.g., influenza, pneumococcal,
or hepatitis)
 Encourage sexual partners to receive HIV testing and
counseling.
 Educate about Balanced diet, Folic acid & Iron prophylaxis.
Preconception Care
Antenatal care
 Initial assesment:
 Regular ANC visits
 Antenatal inestigations
 2 doses of TT
 Iron and Folic acid supplementation
 Screen for TB
 Screen for STI
 Assess CD4 counts
 Cotrimoxozole prophlyaxis therapy if CD4 <
250cells/mm3
 ART/ARV prophylaxis
1. Assess WHO clinical stage
2. Evaluate CD4 cell count
3. Initiate ART/ ARV prophylaxis without waiting
for results.
ART/ ARV PROPHYLAXIS
CRITERIA FOR ART : ART to be started if,
a. CD4 count <350cells/cu.mm, irrespective of the
WHO staging
b. WHO stage 3 or 4 disease, irrespective of CD4
cell count
Criteria for ARV prophylaxis
a. CD4 >350 cells/mm3
b. WHO stage 1 or 2
ANTI RETROVIRAL
THERAPY
Replication Cycle Of HIV :-
NRTI/ NNRTI
FI
PI
Drug Category
Nucleoside reverse transcriptase inhibitors
Abacavir
Didanosine
Emtricitabine
Lamivudine
Stavudine
Tenofovir
Zalcitabine
Zidovudine
Non-nucleoside reverse transcriptase inhibitors
Delavirdine
Efavirenz
Nevirapine
Protease inhibitors
Amprenavir
Atazanavir
Fosaprenavir
Indinavir
Lopinavir/ritonavir
Nelfinavir
Ritonavir
Saquinavir
Fusion inhibitors
Enfuvirtide
Maraviroc ( receptor CCR5 Co)
Integrase inhibitor- Raltegravir
C
B
B
C
C
B
C
C
C
D
B
C
B
C
C
C
B
B
B
B
B
C
Regimen of choice
Tenofovir(TDF,300mg)
Lamuvidine(3TC,300mg)
Efavirenz (EFV, 600mg)
--If exposed to NNRTI earlier- protease inhibitor based
regimen,
Tenofovir(tdf,300mg)
Lamuvidine(3tc,300mg)
Lopinavir/ritonavir(lpv/r, 100mg)
ART - HAART
Women with known HIV infection who are already
receiving HIV care, but not on ART, who get
pregnant,
a. Repeat CD4 cell count, if done 3 months back, to
determine ART eligibility.
b. Assess WHO clinical staging
c. Initiate ART/ARV prophylaxis at 14 weeks
SCENARIO 2
Women with known HIV infection already on ART, who gets
pregnant
a. Evaluate current ART regimen and make necessary
substitutes
b. Undertake CD4 testing
I trimester- Evaluate the present regimen for the safety of
the mother and fetus
If she is on nevirapine based regimen, same has to be
continued
If she is on efavirenz based regimen,
a. <28days- stop and start new regimen with NVP
b.>28days- continue same, not an indication for MTP
SCENARIO 3
Pregnant women with unknown HIV status in active
labour or detected to be HIV positive through
whole blood finger prick test
a. Provide intra-partum PPTCT prophylaxis
b. Do confirmatory HIV testing and undertake CD4
cell count, after delivery
c. WHO clinical stage, if HIV is confirmed
SCENARIO 4
 Single dose 200mg nevirapine +Zidovudine, 300mg(
after ensuring Hb>9g/dl) + Lamiuvidine(150mg) every
12hrs during labour and delivery
 Confirm HIV status and evaluate CD4 cell count
 Continue AZT+3TC, BD for 7 days after delivery
Later on link her to any ART center, to assess
eligibility to ART or ARV prophylaxis
Intra-partum PPTCT prophylaxis
Post-partum women detected to be HIV positive
after delivery,
a. Assess WHO clinical stage, undertake CD4 cell
count , decision about starting therapy
b. Infant prophylaxis and its care.
CASE 5
MODE OF DELIVERY
RCOG and ACOG
Planned caesarean section :- AT 38 COMPLETED
WEEKS
 LSCS after onset of labour or after rupture of
members- NOT BENEFICIAL
Mode of Delivery :-
The European Collaboration
 Controlled trial of C-section versus vaginal delivery
The European Mode of Delivery Collaboration.
Lancet.1999;353:35–39
Mode of Delivery
C-section Vaginal delivery
3/170 (1.8%) 21/200 (10.5%)
50-80% decrease in transmission with C-section
as the mode of delivery
Women who are HIV positive who have a
detectable plasma viral load and / or who are
not taking HAART should be offered a planned
caesarean section to reduce peri-natal
transmission
Further research is needed to evaluate the
effect on perinatal transmission and maternal
health of planned caesarean section for
women who are taking HAART or who have
very low viral loads
Indications of Vaginal delivery are:-
 Women’s choice.
 Cesarean section deliveries not
possible or safe.
 Women on HAART with undetectable
viral load.
Vaginal delivery unless the woman has obstetric reasons for
LSCS.
Elective LSCS is NOT considered a standard PPTCT
intervention.
 Consider :-
 LSCS facilities.
 Stage of disease & viral load in mother.
 Presence of Labor or rupture of membranes.
Though LSCS reduces PTCT it may not be feasible in rural
settings & may increase the risk of infectious
complications.
NACO Recommendation
 Already on ART/ARV prophylaxis- continue same
regimen and schedule
 For planned elective cases- continue same
 For emergency cases who are not on any
treatment or prophylaxis- single dose of
nevirapine + AZT + 3TC prophylaxis
 Standard antibiotic prophylaxis to be given in all
cesearean patients
 False labour pains- repeat sd.nevirapine , if last
dose was given more than 48hrs before
ART DURING LABOUR
 Blood-less Cesarean with intact membranes is
the key.
 Use HIV Kit with all protective gears.
 Surgery should be slow, steady, Keep the field
blood less by using constant suction & cautery.
 Deliver infant with intact membranes & slowly
suction out amniotic fluid.
 Clamp the umbilical cord immediately.
 Avoid Manual removal of Placenta.
 Good surgical practices like use of forceps,
avoiding using fingers, be careful while
transferring sharps to assistants.
Precautions during LSCS in HIV +ve
 Follow Universal Safety Precautions.
 Minimal Cervical examinations
 Asepsis to be mantained.
 Avoid Prolonged Labor.
 Avoid Prolonged rupture of membranes.
 Avoid Routine ARM. (Delay ARM till 7cm or more dilatation).
 Avoid Invasive fetal monitoring.
 Avoid routine Episotomy.
 Avoid Instrumental delivery, if necessary use forceps over
vaccum
 Avoid use of Methergin due to interactions with various ARV
drugs.
Precautions during Delivery
WITHIN ONE HOUR OF DELIVERY,
a. Administer nevirapine to the infant
b. Place infant on mother’s abdomen
c. Encourage exclusive breast-feeding
POST-NATAL PERIOD,
a. Continue ART/ARV prophylaxis
b. Support daily nevirapine administration to the infant
c. Ensure maternal well-being and rule out post-partum
infections
d. Counsel family members to provide constant support and
care.
e. Nutritious diet, adequate rest and supplements
POST- PARTUM PERIOD
At 6 weeks,
 See for pallor, any breast engorgement or mass,
cesearean and episiotomy wound
 See for any features of opportunistic infections
 Counsel her for insertion of IUCD and educate
about DUAL CONTRACEPTION
FOLLOW-UP
 ON ART- Life-long
 On ARV prophylaxis- depends on feeding pattern,
a. on exclusive replacement feeds- stop after
delivery
b. on exclusive breast-feeding- continue for the
duration of breast-feeding and for one week after
cessation of breast-feeding.
 Women who directly came in labour- continue
AZT/3TC drugs for 7days irrespective of feeding
practices.
THERAPY- HOW LONG?
SUMMARY
WHO RECOMMENDATIONS
Rationale: Shift from Option A to B+ or
B
Major issue now is not “when to start” or “what to start” but “whether to
stop”
BENEFITS FOR MOTHER AND CHILD BENEFITS FOR PROGRAM DELIVERY
& PUBLIC HEALTH
Ensures all ART eligible women initiate
treatment
Reduction in number of steps along
PMTCT cascade
Prevents MTCT in future pregnancies Same regimen for all adults (including
pregnant women)
Potential health benefits of early ART for
non-eligible women
Simplification of services for all adults
Reduces potential risks from treatment
interruption
Simplification of messaging
Improves adherence with once daily,
single pill regimen
Protects against transmission in
discordant couples
Reduces sexual transmission of HIV Cost effective
Programmatic considerations for
B+
 Initiate all HIV+ pregnant and breastfeeding women on ART
 Operational and programmatic advantages to lifelong ART for
pregnant and breastfeeding women (“B+”), particularly in
settings with:
 Generalized epidemics
 High fertility (though need to strengthen FP)
 Long duration of breastfeeding
 Limited access to CD4 to determine ART eligibility
 High partner serodiscordance rates
 National programmes need to decide B or B+
HIV EXPOSED INFANTS
FEEDING PRACTICES:
RCOG :-
Women who are HIV positive should be advised
not to breastfeed their babies .
Breastfeeding increases the overall MTCT rate by
14% for women infected with HIV before birth and
by 30% in mothers infected postnatally.
HIV EXPOSED INFANTS
UN Infant recommendations (2003) :-
 Avoid all breast feeding if replacement feeding
is acceptable, feasible, affordable, sustainable,
& safe ; otherwise exclusive breast feeding with
abrupt weaning at 4-6 months of life.
 EXCLUSIVE BREAST FEEEDING- 6 MONTHS
 Maternal death, severe maternal infection or mother’s choice-
exclusive replacement feeds may be considered
 EXCLUSIVE REPLACEMENT FEEDS- AFASS criteria,
a. Affordability
b. Feasible
c. Acceptable
d. Safe
e. Sustainable
Start weaning after 6 months and gradually start complementary
feeds irrespective of HIV status of the infant
NO MIXED FEEDING UNDER ANY CIRCUMSTANCES
NACO RECOMMENDATIONS
HIV negative Breast-feed infants HIV positive
Continue BF till 12months of age continue BF til 2years
irrespective of whether or not mother age along with pediatric
Is on ART/ARV prophylaxis ART
After 6 weeks of stopping BF, repeat EID
Rapid test–- DBs– WBS
WBS +--- pediatric ART
Confirmation t 18 months using 3 rapid tests
HOW LONG?
BIRTH WEIGHT DOSE/mg DOSE/ml DURATION
< 2KGS 8mg/kg OD 0.2ml/kg OD 6 WEEKS
2-2.5KGS 10mg/kg OD 1 ml/kg 0D 6 WEEKS
> 2.5KGS 15mg/ kg OD 1.5 ml/ kg OD 6 WEEKS
NVP prophylaxis
 Oral contraceptive pills,
a. Not on any treatment- WHO category 1- no restriction for
the use of the method
b. On ART- dose adjustment many be needed as drug
interactions are known to occur, ritonavir and nevirapine
reduce the efficacy of OCP’s
 Injectable contraceptives- WHO category 1- no restriction
 Intra-uterine contraceptive devices- WHO category 1, can
be within 48hrs after delivery also
 Permanent sterilisation- Best, but should continue to use
condoms
a. Motivate men at every mother-baby pair follow-up
b. Can be done after 18 months irrespective of HIV status of
the infant
Family planning and birth spacing
 Wash the wound & exposed sites with soap & water.
 Rapid HIV testing on patient & health care worker.
 Start PEP within 2 hrs. of exposure.
 Discontinue PEP if confirmed that pts HIV test is
negative
Regimens:
 AZT+ 3TC for 4 wks, add protease inhibitor if exposure
is severe.
 Repeat test after 3 and 6 months
 In pregnant individuals, Nelfinavir/ lopinavir is a better
Post Exposure Prophylaxis Guidelines
Opportunistic
Infections
Prophylaxis
indicated
below CD4
count
Prophylaxis in Pregnancy.
Pneumocystis
Carini
Pneumonia
(PCP)
200 TMP-SMX 1 double strength
tablet daily or Pentamidine 300
mg once a month
Toxoplasmosis 100 TMP-SMX 1 double strength
tablet daily .
Disseminated
MAC
50 Azithromycin 1200 mg weekly.
Prophylaxis for OI’s in Pregnancy
 For frequent or recurrent infections of :-
 Herpes Simplex :- Acyclovir 200 mg tid PO.
 Candidiasis :- Fluconazole 100-200 mg/d PO.
 Recommended Immunizations for :-
 Hepatitis B Virus.
 Hepatitis A Virus.
 Influenza Virus.
 Pneumococcus.
(NIH/CDC 2008 guidelines for
OIs)
Prophylaxis for OI’s in Pregnancy
a. 10 times more in HIV positive women
b. Risk of MTCT transmission increases by 2.5
times
c. Intensified case finding has to be initiated
d. Anti-tubercular drugs have to be started first,
followed by ART as soon as possible, start ART
irrespective of CD4cell count
Positive women with active TB
a. Less progressive and less incidence of MTCT(0-
4%)
b. NNRTI are not effective against HIV-2, hence
regimen includes
2 NRTI + LPV/r
HIV -2 INFECTION
a. Common among IV drug abusers
b. Require treatment for HBV infection- Regimen
TDF+3TC+EFV, to be started irrespective of CD4
count and WHO staging as it is effective against
both.
c. If treatment is not required- follow general
recommendations for ART/ARV prophylaxis
d.HCV co-infection- follow general
recommendations for ART/ARV prophylaxis
Hepatitis B or C co-infection
Women with indications for ART with Hb
<9g/dl should be on a non-AZT regimen and
receive treatment for anemia.
Alternatives to AZT are Stavudine(d4T) or
Abacavir.
Pregnancy in HIV +ve who have
anaemia
 Primary prevention of HIV in women of childbearing age
 Voluntary Counseling(VCT) & Testing in Pregnancy.
 Proper Counseling & education of HIV+ve Pregnant
couples.
 Multidisciplinary approach.
 Screen for genital tract & opportunistic infections.
 ARV Prophylaxis/ ART reduces MTCT regardless of CD4
cell count and HIV-RNA levels.
Take Home Message :-
 Vaginal delivery with utmost precautions can
reduce MTCT by only 2 percent.
 Elective LSCS can reduce MTCT by 50%.
 Exclusive breast feeding for 6 months as this
provides adequate nutrition and also protects the
baby from hazardous infection which is
responsible for majority of neo-natal morbidity
and mortality.


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HIV in pregnancy

  • 1. Dr. Babitha Dr. Manvi Moderator: Dr. Lakshmikanth HIV IN PREGNANCY
  • 2. REFERENCES  NACO guidelines for ART- 2012  Williams obstetrics- 23rd edition  Practical guidelines to high risk pregnancy and delivery- 3rd edition..Fernando Arias, Shirish daftary  Practical obtetric problems- Ian donald, 6th edition  WHO- consolidated guidelines for use of ART drugs n treating and preventing HIV infection, 2013
  • 3.  History  Virology  Global scenario  Burden of the disease in india  Routes of transmission and progression of the disease  Testing and management in the ante-natal period  Intra-partum management  Post-natal care of the mother and follow-up of the infant  Contraception  Post exposure prophylaxis  Special situations OVERVIEW
  • 4. Historical Events  June 5 1981 – Centre for Disease Control & Prevention – Reported 5 homosexual men with PCP – Gay Related Immune deficiency  1982 – CDC Reported – also seen in non-homosexuals – AIDS .  1982 – Luc Montagnier et al, Pasteur Institute – Discovered the virus & named it Lymphadenopathy associated virus (LAV).  1983 – Robert , US – confirmed the virus – called it – Human T Lymphotropic Virus type III (HTLV – III).  1986 – Renamed as Human Immunodeficiency Virus (HIV).
  • 5. VIROLOGY p24Capsule protein p17Matrix protein Single stranded RNA (2 Copies). Family :- Retroviridae ; Sub-family :- Lentiviridae RNA genome has 9 genes :- : 3 Structural (gag, pol, env) : 6 Regulatory genes . Two Types of Virus :- -: HIV I – More Virulent, global, easily Transmitted -: HIV II – Less Transmittable,confined to Africa.
  • 7. Global Pandemic  33.4 million adult individuals infected(2008)  2.1 million children are infected (2008).  15.7 million women are infected.  1.4 million HIV+ pregnant women Global Scenario
  • 8.  Negligible number in year 1986 to 5.5 million in year 2006.  Second highest in the world because of the large size of the population.  About 2.4 million AIDS cases in India were documented in our country  Over 39% i.e 93600 are women of reproductive age groups.  4.4% children are infected (NACO 2010.) Indian Scenario - EPIDEMIC
  • 9. HIV/AIDS – India’s Response • 1986: 1st case of HIV detected in Chennai • 1990: HIV/AIDS Cell set up in MoHFW • 1992: NACP-I launched with a outlay of US$ 84 m • 1992: National AIDS Control Organisation (NACO) established within MoHFW • 1999-2006: NACP-II • 2007-2012: NACP-III • NACP IV (2012-2017) on the anvil with projected outlay of more than US$ 2 billion
  • 10. Categor y NACP-III Definition A > 1% ANC prevalence in any of the sites in the last 3 years B < 1% ANC prevalence in all the sites during last 3 years with > 5% prevalence in any HRG site (STD/FSW/MSM/IDU) C < 1% ANC prevalence in all sites during last 3 years with < 5% in all STD clinic attendees or any HRG, with known hot spots D < 1% ANC prevalence in all sites during last 3 years with < 5% in all STD clinic attendees or any HRG OR no or poor HIV data with no known hot spots
  • 11. Routes of HIV Transmission, 2012-13
  • 12. HIV Concentrated in HRG & Bridge Pop. Source: HIV Sentinel Surveillance 2010-11 – A Technical Brief, NACO
  • 13.  Acute retroviral syndrome ; fever, night sweats, fatigue, rash, headache, lymphadenophathy, pharyngitis, myalgias, arthralgias, nausea, vomiting, diarrhea ; lasts < 10 days  After symptoms abate ; chronic viremia COURSE OF THE DISEASE
  • 14.  Median time = 10 years --- AIDS  AIDS; generalized lymphadenopathy, oral hairy leukoplakia, aphthous ulcer, thrombocytopenia, opportunistic infections ( candida, HSV, TB, CMV, HPV, PCP, toxoplamosis), Kaposi sarcoma, non- Hodgkin lymphoma
  • 15.  Stage I :-  Asymptomatic or with Persistent generalized Lymphadenopathy.  Performance Scale 1 :- Asymptomatic normal activity .  Stage II :- Wt.loss < 10% of body wt.  Minor muco-cutaneous lesions Herpes zoster within last 5yrs.  Recurrent URTIs .  Performance Scale 2 :- Symptomatic, normal activity. WHO Staging System.
  • 16.  Stage III :-  Wt. Loss > 10 % body wt.  Unexplained chronic diarrhea / persistent fever for > 1month. Oral candidiasis / hairy Leukoplakia.  Pulmonary TB within past 1 yr. Performance Scale 3 :- Bedridden for < 50% of day in last month.
  • 17. Stage IV :-  HIV wasting syndrome. PCP / CNS Toxplasmosis / Extrapulmonary cryptococcosis Cryptosporidiosis / Kaposis Sarcoma / Lymphoma Extrapulmonary TB / HIV Encephalopathy Performance Scale 4 :- Bedridden for > 50% of day in last month.
  • 18. Screening – ELISA Rapid antibody tests. Dot blot tests Particle agglutination HIV spot and comb test Immunochromatography Dipstick and comb’s test Negative if the first test result is negative. (Revised Training Curriculum Trainer Manual, NACO) Establishing diagnosis of HIV
  • 19. Positive results - re-checked by a 2nd & confirmed by an 3rd Rapid test using different antigen or using different principle & using the same serum/plasma sample as used in the first test. In-determinate results are confirmed by ELISA ELISA + - Declared positive ELISA – Declared negative
  • 20. All Pregnant women should be given voluntary counseling & testing (VCT) with confidentiality. Both partners should be counseled & tested for HIV in pregnancy. (NACO).  Opt out approach is preferable – HIV testing as routine ANC Care (WHO, ACOG)  Repeat testing in third trimester is indicated if there is :-  H/o STDs, illicit drug use, multiple sexual partners.  Symptoms of acute HIV infection at any time during pregnancy.  In areas of high prevalence (5/1000). HIV Screening in Pregnancy
  • 21. Agree to test Offer HIV test Opt out HIV –ve HIV +ve repeat counseling Post-test offer HIV test at Counseling subsequent visit Support referred to ART centre
  • 22. MOTHER TO CHILD TRANSMISSION Parent to child transmission (PTCT) or Vertical transmission or perinatal transmission is the second most common mode of transmission of HIV infection in India.  90% of infections in children are due to MTCT. Women diagnosed HIV positive during pregnancy should be informed that interventions (such as antiretroviral therapy, caesarean section) can reduce the risk of PTCT from 30 -45% to less than 2%. 15% of new HIV infections each year are caused by MTCT WHY DO THE TEST?
  • 23. Timing Transmission rate During Pregnancy 20-25 % During Labour & Delivery 60 – 70 % During Breastfeeding 15 – 20 % Overall Without Breastfeeding 15 – 25 % Overall with Breastfeeding upto 6 mths 20 – 25 % Overall with Breastfeeding upto 18-24mths 30 – 45 %. Estimated Risk of PTCT in absence of interventions
  • 24. Maternal Factors :-  CD4 count  Viral Load  Viral resistance  HIV subtype  Concurrent infections  STDs & genital infections  Maternal malnutrition  Sexual Practices  Antiretroviral treatment Factors which affect MTCT -
  • 25.
  • 26. Obstetrical Factors :--  Ruptured membranes (>4 hrs) Each hr. of ROM increases MTCT by 2%.  Chorio-amnionitis : STI  Vaginal delivery  Intrapartum hemorrhage  Uterine manipulation  Invasive procedures  Prematurity, LBW.  Instrumental deliveries
  • 27.  Breast Feeding factors :-  Duration of breast feeding Mixed feeding (top feeds + breast milk)  Breast abscess, nipple fissures, mastitis.  Oral disease in infant (thrush, sores..) Factors which affect MTCT
  • 28.
  • 29. Studies have shown no effect of HIV on pregnancy. Increased perinatal mortality related to HIV infection has been reported in infants in developing countries due to increase in co morbid conditions No increase in malformations related to HIV infection. Effects of HIV on pregnancy
  • 30.  Studies have shown pregnancy has no effect on progression of disease.  Absolute CD4 counts fall in all pregnant women & rebound by 50-100 cells/mm3 after child birth.  Plasma HIV RNA levels tend to remain stable during pregnancy Effects of pregnancy on HIV
  • 31. PPTCT  Prevention of Parent To Child Transmission GOALS:  Primary prevention of HIV in women of child bearing age  Prevention of unintended pregnancies in HIV+ women  Prevention of transmission to the child  Care and support to the mother, children and family.
  • 32. I) Prevention of Primary infection :- 1) Provide Access to Condoms. 2) Behavior change communication (BCC) and social mobilization campaigns 3) Provide early diagnosis & treatment of STDs. 4) Make HIV testing & counseling widely available. 5) Provide suitable counseling for HIV negative women.
  • 33. II) Prevention on Unintended Pregnancies among HIV women :-  Effective Family planning services can help prevent unintended pregnancies in HIV infected women.  Providing safe & effective contraception & high quality reproductive health counseling helps to make informed decisions about pregnancies.
  • 34.  Goals- improve health and identify risk factors causing adverse maternal and fetal outcome, Safe sexual practices Prevent and manage STD’s Eliminating alcohol, illicit drug use, tobacco chewing, cigarette smoking. Available reproductive options such as IUI, IVF or ICSI, in sero-discordant couples.  Educate women about risk factors for peri-natal HIV transmission, & strategies to reduce those risks.  Assess indications for antiretroviral regimens Preconception counseling
  • 35.  Attain a stable, maximally suppressed maternal viral load.  Evaluate and treat :- ARV therapy-associated side effects (e.g. lactic acidosis, hepatotoxicity)  Evaluate for appropriate prophylaxis for opportunistic infections and administration of vaccines (e.g., influenza, pneumococcal, or hepatitis)  Encourage sexual partners to receive HIV testing and counseling.  Educate about Balanced diet, Folic acid & Iron prophylaxis. Preconception Care
  • 36. Antenatal care  Initial assesment:  Regular ANC visits  Antenatal inestigations  2 doses of TT  Iron and Folic acid supplementation  Screen for TB  Screen for STI  Assess CD4 counts  Cotrimoxozole prophlyaxis therapy if CD4 < 250cells/mm3  ART/ARV prophylaxis
  • 37. 1. Assess WHO clinical stage 2. Evaluate CD4 cell count 3. Initiate ART/ ARV prophylaxis without waiting for results. ART/ ARV PROPHYLAXIS
  • 38. CRITERIA FOR ART : ART to be started if, a. CD4 count <350cells/cu.mm, irrespective of the WHO staging b. WHO stage 3 or 4 disease, irrespective of CD4 cell count Criteria for ARV prophylaxis a. CD4 >350 cells/mm3 b. WHO stage 1 or 2
  • 40. Replication Cycle Of HIV :- NRTI/ NNRTI FI PI Drug Category Nucleoside reverse transcriptase inhibitors Abacavir Didanosine Emtricitabine Lamivudine Stavudine Tenofovir Zalcitabine Zidovudine Non-nucleoside reverse transcriptase inhibitors Delavirdine Efavirenz Nevirapine Protease inhibitors Amprenavir Atazanavir Fosaprenavir Indinavir Lopinavir/ritonavir Nelfinavir Ritonavir Saquinavir Fusion inhibitors Enfuvirtide Maraviroc ( receptor CCR5 Co) Integrase inhibitor- Raltegravir C B B C C B C C C D B C B C C C B B B B B C
  • 41. Regimen of choice Tenofovir(TDF,300mg) Lamuvidine(3TC,300mg) Efavirenz (EFV, 600mg) --If exposed to NNRTI earlier- protease inhibitor based regimen, Tenofovir(tdf,300mg) Lamuvidine(3tc,300mg) Lopinavir/ritonavir(lpv/r, 100mg) ART - HAART
  • 42. Women with known HIV infection who are already receiving HIV care, but not on ART, who get pregnant, a. Repeat CD4 cell count, if done 3 months back, to determine ART eligibility. b. Assess WHO clinical staging c. Initiate ART/ARV prophylaxis at 14 weeks SCENARIO 2
  • 43. Women with known HIV infection already on ART, who gets pregnant a. Evaluate current ART regimen and make necessary substitutes b. Undertake CD4 testing I trimester- Evaluate the present regimen for the safety of the mother and fetus If she is on nevirapine based regimen, same has to be continued If she is on efavirenz based regimen, a. <28days- stop and start new regimen with NVP b.>28days- continue same, not an indication for MTP SCENARIO 3
  • 44. Pregnant women with unknown HIV status in active labour or detected to be HIV positive through whole blood finger prick test a. Provide intra-partum PPTCT prophylaxis b. Do confirmatory HIV testing and undertake CD4 cell count, after delivery c. WHO clinical stage, if HIV is confirmed SCENARIO 4
  • 45.  Single dose 200mg nevirapine +Zidovudine, 300mg( after ensuring Hb>9g/dl) + Lamiuvidine(150mg) every 12hrs during labour and delivery  Confirm HIV status and evaluate CD4 cell count  Continue AZT+3TC, BD for 7 days after delivery Later on link her to any ART center, to assess eligibility to ART or ARV prophylaxis Intra-partum PPTCT prophylaxis
  • 46. Post-partum women detected to be HIV positive after delivery, a. Assess WHO clinical stage, undertake CD4 cell count , decision about starting therapy b. Infant prophylaxis and its care. CASE 5
  • 48. RCOG and ACOG Planned caesarean section :- AT 38 COMPLETED WEEKS  LSCS after onset of labour or after rupture of members- NOT BENEFICIAL Mode of Delivery :-
  • 49. The European Collaboration  Controlled trial of C-section versus vaginal delivery The European Mode of Delivery Collaboration. Lancet.1999;353:35–39 Mode of Delivery C-section Vaginal delivery 3/170 (1.8%) 21/200 (10.5%) 50-80% decrease in transmission with C-section as the mode of delivery
  • 50. Women who are HIV positive who have a detectable plasma viral load and / or who are not taking HAART should be offered a planned caesarean section to reduce peri-natal transmission Further research is needed to evaluate the effect on perinatal transmission and maternal health of planned caesarean section for women who are taking HAART or who have very low viral loads
  • 51. Indications of Vaginal delivery are:-  Women’s choice.  Cesarean section deliveries not possible or safe.  Women on HAART with undetectable viral load.
  • 52. Vaginal delivery unless the woman has obstetric reasons for LSCS. Elective LSCS is NOT considered a standard PPTCT intervention.  Consider :-  LSCS facilities.  Stage of disease & viral load in mother.  Presence of Labor or rupture of membranes. Though LSCS reduces PTCT it may not be feasible in rural settings & may increase the risk of infectious complications. NACO Recommendation
  • 53.  Already on ART/ARV prophylaxis- continue same regimen and schedule  For planned elective cases- continue same  For emergency cases who are not on any treatment or prophylaxis- single dose of nevirapine + AZT + 3TC prophylaxis  Standard antibiotic prophylaxis to be given in all cesearean patients  False labour pains- repeat sd.nevirapine , if last dose was given more than 48hrs before ART DURING LABOUR
  • 54.  Blood-less Cesarean with intact membranes is the key.  Use HIV Kit with all protective gears.  Surgery should be slow, steady, Keep the field blood less by using constant suction & cautery.  Deliver infant with intact membranes & slowly suction out amniotic fluid.  Clamp the umbilical cord immediately.  Avoid Manual removal of Placenta.  Good surgical practices like use of forceps, avoiding using fingers, be careful while transferring sharps to assistants. Precautions during LSCS in HIV +ve
  • 55.  Follow Universal Safety Precautions.  Minimal Cervical examinations  Asepsis to be mantained.  Avoid Prolonged Labor.  Avoid Prolonged rupture of membranes.  Avoid Routine ARM. (Delay ARM till 7cm or more dilatation).  Avoid Invasive fetal monitoring.  Avoid routine Episotomy.  Avoid Instrumental delivery, if necessary use forceps over vaccum  Avoid use of Methergin due to interactions with various ARV drugs. Precautions during Delivery
  • 56. WITHIN ONE HOUR OF DELIVERY, a. Administer nevirapine to the infant b. Place infant on mother’s abdomen c. Encourage exclusive breast-feeding POST-NATAL PERIOD, a. Continue ART/ARV prophylaxis b. Support daily nevirapine administration to the infant c. Ensure maternal well-being and rule out post-partum infections d. Counsel family members to provide constant support and care. e. Nutritious diet, adequate rest and supplements POST- PARTUM PERIOD
  • 57. At 6 weeks,  See for pallor, any breast engorgement or mass, cesearean and episiotomy wound  See for any features of opportunistic infections  Counsel her for insertion of IUCD and educate about DUAL CONTRACEPTION FOLLOW-UP
  • 58.  ON ART- Life-long  On ARV prophylaxis- depends on feeding pattern, a. on exclusive replacement feeds- stop after delivery b. on exclusive breast-feeding- continue for the duration of breast-feeding and for one week after cessation of breast-feeding.  Women who directly came in labour- continue AZT/3TC drugs for 7days irrespective of feeding practices. THERAPY- HOW LONG?
  • 61.
  • 62. Rationale: Shift from Option A to B+ or B Major issue now is not “when to start” or “what to start” but “whether to stop” BENEFITS FOR MOTHER AND CHILD BENEFITS FOR PROGRAM DELIVERY & PUBLIC HEALTH Ensures all ART eligible women initiate treatment Reduction in number of steps along PMTCT cascade Prevents MTCT in future pregnancies Same regimen for all adults (including pregnant women) Potential health benefits of early ART for non-eligible women Simplification of services for all adults Reduces potential risks from treatment interruption Simplification of messaging Improves adherence with once daily, single pill regimen Protects against transmission in discordant couples Reduces sexual transmission of HIV Cost effective
  • 63. Programmatic considerations for B+  Initiate all HIV+ pregnant and breastfeeding women on ART  Operational and programmatic advantages to lifelong ART for pregnant and breastfeeding women (“B+”), particularly in settings with:  Generalized epidemics  High fertility (though need to strengthen FP)  Long duration of breastfeeding  Limited access to CD4 to determine ART eligibility  High partner serodiscordance rates  National programmes need to decide B or B+
  • 65.
  • 66.
  • 67.
  • 68.
  • 69. FEEDING PRACTICES: RCOG :- Women who are HIV positive should be advised not to breastfeed their babies . Breastfeeding increases the overall MTCT rate by 14% for women infected with HIV before birth and by 30% in mothers infected postnatally. HIV EXPOSED INFANTS
  • 70. UN Infant recommendations (2003) :-  Avoid all breast feeding if replacement feeding is acceptable, feasible, affordable, sustainable, & safe ; otherwise exclusive breast feeding with abrupt weaning at 4-6 months of life.
  • 71.  EXCLUSIVE BREAST FEEEDING- 6 MONTHS  Maternal death, severe maternal infection or mother’s choice- exclusive replacement feeds may be considered  EXCLUSIVE REPLACEMENT FEEDS- AFASS criteria, a. Affordability b. Feasible c. Acceptable d. Safe e. Sustainable Start weaning after 6 months and gradually start complementary feeds irrespective of HIV status of the infant NO MIXED FEEDING UNDER ANY CIRCUMSTANCES NACO RECOMMENDATIONS
  • 72. HIV negative Breast-feed infants HIV positive Continue BF till 12months of age continue BF til 2years irrespective of whether or not mother age along with pediatric Is on ART/ARV prophylaxis ART After 6 weeks of stopping BF, repeat EID Rapid test–- DBs– WBS WBS +--- pediatric ART Confirmation t 18 months using 3 rapid tests HOW LONG?
  • 73. BIRTH WEIGHT DOSE/mg DOSE/ml DURATION < 2KGS 8mg/kg OD 0.2ml/kg OD 6 WEEKS 2-2.5KGS 10mg/kg OD 1 ml/kg 0D 6 WEEKS > 2.5KGS 15mg/ kg OD 1.5 ml/ kg OD 6 WEEKS NVP prophylaxis
  • 74.  Oral contraceptive pills, a. Not on any treatment- WHO category 1- no restriction for the use of the method b. On ART- dose adjustment many be needed as drug interactions are known to occur, ritonavir and nevirapine reduce the efficacy of OCP’s  Injectable contraceptives- WHO category 1- no restriction  Intra-uterine contraceptive devices- WHO category 1, can be within 48hrs after delivery also  Permanent sterilisation- Best, but should continue to use condoms a. Motivate men at every mother-baby pair follow-up b. Can be done after 18 months irrespective of HIV status of the infant Family planning and birth spacing
  • 75.  Wash the wound & exposed sites with soap & water.  Rapid HIV testing on patient & health care worker.  Start PEP within 2 hrs. of exposure.  Discontinue PEP if confirmed that pts HIV test is negative Regimens:  AZT+ 3TC for 4 wks, add protease inhibitor if exposure is severe.  Repeat test after 3 and 6 months  In pregnant individuals, Nelfinavir/ lopinavir is a better Post Exposure Prophylaxis Guidelines
  • 76. Opportunistic Infections Prophylaxis indicated below CD4 count Prophylaxis in Pregnancy. Pneumocystis Carini Pneumonia (PCP) 200 TMP-SMX 1 double strength tablet daily or Pentamidine 300 mg once a month Toxoplasmosis 100 TMP-SMX 1 double strength tablet daily . Disseminated MAC 50 Azithromycin 1200 mg weekly. Prophylaxis for OI’s in Pregnancy
  • 77.  For frequent or recurrent infections of :-  Herpes Simplex :- Acyclovir 200 mg tid PO.  Candidiasis :- Fluconazole 100-200 mg/d PO.  Recommended Immunizations for :-  Hepatitis B Virus.  Hepatitis A Virus.  Influenza Virus.  Pneumococcus. (NIH/CDC 2008 guidelines for OIs) Prophylaxis for OI’s in Pregnancy
  • 78. a. 10 times more in HIV positive women b. Risk of MTCT transmission increases by 2.5 times c. Intensified case finding has to be initiated d. Anti-tubercular drugs have to be started first, followed by ART as soon as possible, start ART irrespective of CD4cell count Positive women with active TB
  • 79. a. Less progressive and less incidence of MTCT(0- 4%) b. NNRTI are not effective against HIV-2, hence regimen includes 2 NRTI + LPV/r HIV -2 INFECTION
  • 80. a. Common among IV drug abusers b. Require treatment for HBV infection- Regimen TDF+3TC+EFV, to be started irrespective of CD4 count and WHO staging as it is effective against both. c. If treatment is not required- follow general recommendations for ART/ARV prophylaxis d.HCV co-infection- follow general recommendations for ART/ARV prophylaxis Hepatitis B or C co-infection
  • 81. Women with indications for ART with Hb <9g/dl should be on a non-AZT regimen and receive treatment for anemia. Alternatives to AZT are Stavudine(d4T) or Abacavir. Pregnancy in HIV +ve who have anaemia
  • 82.  Primary prevention of HIV in women of childbearing age  Voluntary Counseling(VCT) & Testing in Pregnancy.  Proper Counseling & education of HIV+ve Pregnant couples.  Multidisciplinary approach.  Screen for genital tract & opportunistic infections.  ARV Prophylaxis/ ART reduces MTCT regardless of CD4 cell count and HIV-RNA levels. Take Home Message :-
  • 83.  Vaginal delivery with utmost precautions can reduce MTCT by only 2 percent.  Elective LSCS can reduce MTCT by 50%.  Exclusive breast feeding for 6 months as this provides adequate nutrition and also protects the baby from hazardous infection which is responsible for majority of neo-natal morbidity and mortality.
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Notes de l'éditeur

  1. We know that early ART reduces mortality by 75% in infants
  2. The difference between AntiRetroViral (ARV) and AntiRetroviral Therapy (ART) is that ARVs are drugs that have suppressive effect on HIV while ART is an anti HIV treatment using a combination of a minimum of at least three ARVs.