pediatric hiv
DESCRIPTION
Pediatric HIV. November 13, 2007. What is HIV?. Human Immunodeficiency Virus: A single-stranded retrovirus that attacks the human immune system. Specifically a lentivirus, which is a type of retrovirus. Means: Slow virus Uses CD4+ “helper T-cells” to replicate itself Destroys T-cells - PowerPoint PPT PresentationTRANSCRIPT
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Pediatric HIV
November 13, 2007
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What is HIV?• Human Immunodeficiency Virus: A single-
stranded retrovirus that attacks the human immune system. Specifically a lentivirus, which is a type of retrovirus. Means: Slow virus– Uses CD4+ “helper T-cells” to replicate itself– Destroys T-cells– Compromises immune functioning– Increases risk of opportunistic infection
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HIV/AIDS Classification
• The CDC definition of AIDS includes all HIV-infected individuals with CD4 counts of < 200 cells/µL as well as those with certain HIV-related conditions and symptoms
• The WHO system classifies HIV disease on the basis of clinical manifestations that can be recognized and treated by clinicians in diverse settings
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Prevalence of HIV/AIDS
HIV/AIDS Impact (2005)Worldwide:
• 39.5 million people with HIV/AIDS
– 38.0 million adults
– 2.2 million children younger than 15 years living with HIV/AIDS
• In 2005, HIV/AIDS-associated illnesses caused 3.1 million deaths
(Center for Disease Control; CDC)
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Prevalence of HIV/AIDS
Worldwide Continued:• This includes an estimated 570,000 children
younger than 15 years• Approximately 15.0 million children
younger than 15 years have been orphaned worldwide due to the premature deaths of HIV-infected parents
World Health Organization (WHO), National Institutes of Mental Health (NIMH)
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Pediatric HIV
• 1982 – 1st acknowledged case of HIV in children
• Modes of transmission– Vertical (mother to child)
• Pregnancy, delivery, breast feeding
– Horizontal (through bodily fluids)• Unprotected sex, drug use, blood transfusion
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Impact of HIV on children• From 1992-2004: 9,443 children are estimated to have
been diagnosed with HIV in the U.S.• 92.9% resulted from perinatal transmission • In 2004, an estimated 3,927 children were living with
HIV/AIDS, of whom: 63% African American
21.6% Hispanic14.2% Caucasian<1% Asian Pacific/Islander or American Indian
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Treatment Evolution for HIV/AIDS
• Medical Treatment Evolution
– Monotherapy in early 1990s
– Dual agent approach by mid 1990’s
– Combination antiretroviral therapy (ART), also called highly active antiretroviral therapy (HAART), since late 1990s: 3 or more agents
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Highly Active Anti-Retroviral Therapy
• HAART• Often involves a complex medical regimen• Has produced dramatic & significant
improvement in prognosis for HIV infection • But has also emphasized the importance of:
• Adherence • Medication Interactions
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HIV/AIDS ARV Medications• Nucleoside Reverse Transcriptase
Inhibitor (nRTIs)Abacavir (Ziagen)(Didanosine (Videx)Emtricitabine (Emtriva)Lamivudine (Epivir)Stavudine (Zerit)Tenofovir (Viread)Zalcitabine (Hivid)Zidovudine (AZT)
• Non-Nucleoside Reverse Transcriptase Inhibitor (NNRTIs)
Efavirenz (Sustiva)Nevirapine (Viramune)Delavirdine (Rescriptor)
• Protease inhibitorsAmprenavir (Agenerase)Atazanavir (Reyataz)Darunavir (Prezista)Fosamprenavir (Lexiva)Indinavir (Crixivan)Lopinavir/ritonavir (Kaletra)Nelfinavir (Viracept)Ritonavir (Norvir)Saquinavir (Fortovase)Tipranavir (Aptivus)
• Fusion InhibitorT20 (Fuzeon)
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HIV/AIDS: A Challenging Patient Population
• High degree of stigma
• Lower Socio-Economic Status– Most needs– Fewest resources– Increased risk of violence– Increased “chaos” in daily lives
• Affecting adherence to ART
• Not showing for appointments
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Adherence, Disclosure, & Bereavement
The Role of the Pediatric Psychologist
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Adherence
• Wide variability in adherence rates– Watson & Farley (1999)
• 52% of children under 12 at least 75% adherent – Feingold et al. (2000)
• 54% of children reported “good” adherence– Boni et al. (2000)
• 24% missed at least one dose in past 3 days• 44% missed at least one dose since last clinic visit
– Temple et al. (2001)• Pill counts & pharmacy refills: 19-95% adherence
– Van Dyke et al. (2002)• 68% to 84%
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Adherence
• Why problematic?– Higher non-adherence associated with
increased viral load ( health)– Greater immunosuppression– Development of medication resistance
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Adherence
• Critical to suppress viral load:
Adherence of 95% to drug regimen: 81% success rate
Adherence of 90-95% to drug regimen: 64% success rate
Adherence of 80-90% to drug regimen: 50% success rate
Adherence of 70-80% to drug regimen: 24% success rate
Adherence of <70% to drug regimen: 6% success rate
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Predictors of Adherence
• Demographics
• Available Social Support
• Child and Parent Health Beliefs
• Caregiver and Child Psychosocial Functioning
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Forms of Disclosure
• Disclosure to self– A child receiving information about their illness
• Preschoolers: 0% of children with HIV vs. 100% of children with cancer were told of their diagnosis (Hardy et al., 1994)
• 17-66% of children have received full or partial disclosure (Instone, 2000, Mialky et al., 2001)
• Disclosure took place 2-8 years after diagnosis (Instone, 2000)
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Forms of Disclosure
• Disclosure of others– Receiving information about a parent’s illness
• May involve disclosure of additional info: IV drug use, infidelity, adoption
• 30-57% of children whose mothers are infected have been informed of mothers’ diagnosis (Murphy et al., 2001; Simoni et al., 2000)
• Disclosure to others– Immediate family, other family & friends, school
officials
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Why are Parents Reluctant to Tell their Child that He/She is HIV-
Infected?
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Reasons Parents are Reluctant
• Fear of impact of disclosure on child’s psychological status and emotional health– Reduce child’s will to live– Leads to depression in child
• Fear of inadvertent disclosure to others by child– Child cannot keep secrets
• Protecting child from social rejection and stigma• Guilt about transmission
– Association with sexual taboos
AAP, Pediatrics 1999;103:164Lipson M, Hasting Ctr Rpt 1993;23:6
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Reasons Parents are Reluctant (cont’d)
• Difficulty coping with their own illness or illness of other loved ones
• Established coping strategies within families– Traditional silence around illness and disease– Limited communication within families– Denial as coping strategy
• Belief that child will not understand• Children as hope for future
– Avoid thinking of HIV keeps fatality at bay
• Other
AAP, Pediatrics 1999;103:164Lipson M, Hasting Ctr Rpt 1993;23:6
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What are Reasons to Disclose a Child’s HIV Status?
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Reasons to Disclose• Undisclosed children may
– Develop fantasies about their illness– Feel isolated from sources of support– Learn HIV status inadvertently
• Children often want and ask to know what is wrong– May already know diagnosis but are keeping the secret/
waiting for the parent to tell• With other chronic and fatal illnesses children who
know their status have– Higher self-esteem– Lower rates of depression– Lower rates of parental depression
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Reasons to Disclose (con’t)
• Recognition of Autonomy– Children achieve mastery over their lives as
they age• Ongoing and evolving process of involvement with
their illness and it’s consequences
AAP, Pediatrics 1999;103:164Lipson M, Hasting Ctr Rpt 1993;23:6
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• There is general consensus among experienced pediatric HIV providers that children should be informed of their diagnosis.
• Primarily US and European experience
• Emerging experience in Africa and other high prevalence settings
– Accelerated by the introduction of ARV treatment
Reasons to Disclose
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Imagine your child was HIV+. At what age would you tell them?
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Not “When,” but “How”
• Disclosure is more than revealing HIV status• Entails an ongoing discussion of health and
health-related activities– Parents/caregivers should be encouraged to begin and
continue a dialogue about health issues with their child beginning at an early age
• Simple explanation of nature of illness for youngest children • Disclosure about nature and consequences for older children
– When to use the words “HIV/AIDS” will vary with the needs of the child and family
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Not “When,” but “How” (cont’d)• Let the child be the guide• Individualize the approach - tailor discussion
according to child's:1. Age2. Cognitive development
– Use tools and language for different developmental capacities: drawing, storytelling, play, drama
3. Level of maturity– Assess coping skills of the child
4. Health status– Terminally ill child may benefit from discussion about death
rather than specific diagnosis
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Bereavement
• Children orphaned by HIV/AIDS– North America: 300,000– Worldwide: 15 million
• Anticipatory loss– Witnessing progressive mental and physical
deterioration of a loved one– Confusing and unexpected manifestations– May withdraw from patient
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Bereavement
• Survivor guilt– Families may experience multiple losses– May not have time to process death before
another occurs– Parent guilt over transmission– Child guilt over survival
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Bereavement
• Disruption of the family structure– “Children suffer more from the loss of parental
support than from the death experience itself” (Wolfelt, 1983)
– Disruption of parent/child attachment– Issue of child guardianship
Other relatives? Foster care?
Orphanages? Other?
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Clinical Psychology & the Pediatric HIV Clinic
• Our role in the Pediatric HIV clinic...– Provide brief intervention and assessment of
children and families seen in the clinic– Provide referrals as needed– Serve as a liaison between pt and medical team– Screen for patients in need of psychological
treatment/intervention & provide services
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Clinical Psychology & the Pediatric HIV Clinic
Issues seen/addressed in the clinic:
• Poor adherence • Domestic Violence
• Bereavement • Substance abuse
• Disclosure • Coping with illness
• Safe sexual practices • Family Conflict
• PTSD • Transitioning to the US
• Sexual assault • Depression/Anxiety
• Behavior management • Suicidal ideation/attempts
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Case Presentations
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Case #1: Dating & Romance
• 13 year old African-American male• Interested in becoming sexually active• No understanding of threat or need for
precautions• All sexual knowledge acquired from soap
operas or late night cable TV shows• Legal guardian refuses to discuss sex with
pt
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Case #2: Bereavement
• 15 year old African American female
• Experienced loss of mother 1 year ago
• Relocated to live with aunt
• Experiencing high levels of guilt
• Hiding mysterious scars on forearms
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Case #3: Accidental Disclosure
• 15 y.o. Hispanic female
• Acquired HIV through blood transfusion in infancy
• Boyfriend’s mother found out.
• Called police and disclosed to them.
• Called school officials.
• Resulted in significant distress/angst
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Summary
• Severe worldwide impact on children
• Currently, there is no cure
• Highly stigmatized and feared, often misunderstood, chronic illness
• Affects a large proportion of ethnic minorities and low SES populations
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Summary
• In addition to coping with a life-threatening illness and a complicated medical regimen:
Death & Bereavement Illness Disclosure
Medication Resistance Safe sex
Stigma/Bias Unstable life/family
Being a kid/teen!!!
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Questions? Comments?
Thank you!