SlideShare uma empresa Scribd logo
1 de 39
Neuropsychiatric Aspects of HIV
     Infection and AIDS
Overview of HIV Transmission
• Human immunodeficiency virus is a retrovirus
  related to the human T-cell leukemia viruses
  (HTLV) and to retroviruses that infect animals,
  including nonhuman primates.
• two types of HIV have been identified, HIV-1 and
  HIV-2.
• HIV-1 is the causative agent for most HIV-related
  diseases; HIV-2, however, seems to be causing an
  increasing number of infections in Africa.
• Other subtypes of HIV may exist, which are now
  classified as HIV-O.
• HIV is present in blood, semen, cervical and vaginal
  secretions, and, to a lesser extent, in saliva, tears, breast
  milk, and the cerebrospinal fluid of those who are infected.

• HIV is most often transmitted through sexual intercourse or
  the transfer of contaminated blood from one person to
  another.
• Unprotected anal and vaginal sex are the sexual activities
  most likely to transmit the virus.
• Oral sex has also been implicated, but rarely.
• Health providers should be aware of the guidelines for safe
  sexual practices and should advise their patients to practice
  safe sex .
Pathogenesis
• Once a person is infected with HIV, the virus primarily targets T4
  (helper) lymphocytes, also called CD4+ lymphocytes, to which the
  virus binds because a glycoprotein (gp120) on the viral surface has a
  high affinity for the CD4 receptor on T4 lymphocytes.
• After binding, the virus can inject its RNA into the infected
  lymphocyte, where the RNA is transcribed into DNA by the action of
  reverse transcriptase.
• The resultant DNA can then be incorporated into the host cell's
  genome and translated and eventually transcribed, once the
  lymphocyte is stimulated to divide.
• After viral proteins have been produced by lymphocytes, the
  various components of the virus assemble, and new mature viruses
  bud off from the host cell.
• Although the process of budding may cause lysis of the lymphocyte,
  other HIV pathophysiological mechanisms can gradually disable a
  patient's entire complement of T4 lymphocytes.
AIDS Safe-Sex Guidelines
Remember: Any activity that allows for the exchange of body
    fluids of one person through the mouth, anus, vagina, bloodstream,
    cuts, or sores of another person is considered unsafe at this time.

Safe-sex practices:
• Massage, hugging, body-to-body rubbing
• Dry social kissing
• Masturbation
• Acting out sexual fantasies (that do not include any unsafe-sex
  practices)
• Using vibrators or other instruments (provided they are not shared)
 Low-risk sex practices:
• These activities are not considered completely safe:
   – French (wet) kissing (without mouth sores)
   – Mutual masturbation
   – Vaginal and anal intercourse while using a     condom
   – Oral sex, male (fellatio), while using a condom
       Oral sex,
   – female (cunnilingus), while using a barrier
   – External contact with semen or urine, provided there are
     no breaks in the skin
Unsafe-sex practices:
  • Vaginal or anal intercourse without a condom
  • Semen, urine, or feces in the mouth or the
     vagina
  • Unprotected oral sex (fellatio or cunnilingus)
  • Blood contact of any kind
  • Sharing sex instruments or needles
• The presence of sexually transmitted diseases,
  such as herpes or syphilis, or other lesions that
  compromise the integrity of skin or mucosa,
  further increases the risk of transmission.
• Transmission also occurs through exposure to
  contaminated needles, thus accounting for the
  high incidence of HIV infection among drug users.
• HIV is also transmitted by infusions of whole
  blood, plasma, and clotting factors, but not
  immune serum globulin or hepatitis B vaccine.
• male-to-male transmission has been the most common
  route of sexual transmission in North America, male-to-
  female and female-to-male transmissions are increasing,
  and they represent most transmission worldwide.
• Transmission by contaminated blood most often occurs
  when those abusing a substance intravenously (IV) share
  hypodermic needles without proper sterilization
  techniques.
• Transmission of HIV through blood transfusions, organ
  transplantation, and artificial insemination is no longer a
  problem now that donors are tested for HIV infection.
• Many hemophilia patients, however, received
  transfusions of HIV-infected blood products before HIV
  was identified as the causative agent.
• Children can be infected in utero or through breast-feeding
  when their mothers are infected with HIV.
• Zidovudine (Retrovir) and protease inhibitors taken by the
  HIV-infected pregnant woman prevent perinatal
  transmission in more than 95 percent of cases.
• Health workers are theoretically at risk because of
  potential contact with bodily fluids from HIV-infected
  patients.
• No evidence has been found that HIV can be contracted
  through casual contact, such as by sharing a living space or
  a classroom with a person who is infected, although direct
  and indirect contact with an infected person's bodily fluids,
  such as blood and semen, should be avoided .
Centers for Disease Control and Prevention (CDC)
   Guidelines for the Prevention of HIV Transmission
         from Infected to Uninfected Persons
Infected persons should be counseled to prevent the further transmission of HIV
by:
1. Informing prospective sex partners of their infection with HIV, so they can
     take appropriate precautions. Abstention from sexual activity with another
     person is one option that would eliminate any risk of sexually transmitted HIV
     infection.
2. Protecting a partner during any sexual activity by taking appropriate
     precautions to prevent that person's coming into contact with the infected
     person's blood, semen, urine, feces, saliva, cervical secretions, or vaginal
     secretions. Although the efficacy of using condoms to prevent infections with
     HIV is still under study, the consistent use of condoms should reduce the
     transmission of HIV by preventing exposure to semen and infected
     lymphocytes.
3. Informing previous sex partners and any persons with whom needles were
     shared of their potential exposure to HIV and encouraging them to seek
     counseling and testing.
4. For IV drug abusers, enrolling or continuing in programs to eliminate
the abuse of IV substances. Needles, other apparatus and drugs must
never be shared.
5. Never sharing toothbrushes, razors, or other items that could
become contaminated with blood.
6. Refraining from donating blood, plasma, body organs, other tissue,
or semen.
7. Avoiding pregnancy until more is known about the risks of
transmitting HIV from the mother to the fetus or newborn.
8. Cleaning and disinfecting surfaces on which blood or other body
fluids have spilled, in accordance with previous recommendations
9. Informing physicians, dentists, and other appropriate health
professionals of antibody status when seeking medical care, so that
the patient can be appropriately evaluated
Diagnosis
Serum Testing:
• Techniques are now widely available to detect the
  presence of anti-HIV antibodies in human serum.
• The conventional test uses blood (time to result, 3 to 10
  days) and the rapid test uses an oral swab (time to result,
  20 minutes).
• Both tests are 99.9 percent sensitive and specific.
• Health care workers and their patients must understand
  that the presence of HIV antibodies indicates infection, not
  immunity to infection.
• Those with a positive finding on an HIV test have been
  exposed to the virus, have the virus within their bodies,
  have the potential to transmit the virus to another person,
  and will almost certainly eventually develop AIDS.
Counseling
• The major issues in counseling persons about
  HIV serum testing are who should be tested;
  why a particular person should or should not
  be tested; what the test results signify; and
  what the implications are.
• Although specific groups of persons are at
  high risk for contracting HIV and should be
  tested , any person who wants to be tested
  should probably be tested.
Possible Indications for Human
Immunodeficiency Virus (HIV) Testing
Pretest HIV Counseling
Posttest HIV Counseling
Confidentiality
• Confidentiality is a key issue in serum testing. No one
  should be given an HIV test without previous knowledge
  and consent, although various jurisdictions and
  organizations, such as the military, now require HIV testing
  for all inhabitants or members.
• The results of an HIV test can be shared with other
  members of a medical team, although the information
  should be provided to no one else except in the special
  circumstances discussed below.
• The patient should be advised against disclosing the results
  of HIV testing too readily to employers, friends, and family
  members; the information could result in discrimination in
  employment, housing, and insurance.
• The major exception to restriction of disclosure is
  the need to notify potential and past sexual or IV
  substance use partners. Most patients who are
  HIV positive act responsibly.
• If, however, a treating physician knows that a
  patient who is HIV infected is putting another
  person at risk of becoming infected, the physician
  may try either to hospitalize the infected person
  involuntarily (to prevent danger to others) or to
  notify the potential victim.
Clinical Features
Nonneurological Factors:
• About 30 percent of persons infected with HIV
  experience a flulike syndrome 3 to 6 weeks after
  becoming infected; most never notice any symptoms
  immediately or shortly after their infection.
• When symptoms do appear, the flulike syndrome
  includes fever, myalgia, headaches, fatigue,
  gastrointestinal symptoms, and sometimes a rash.
• The syndrome may be accompanied by splenomegaly
  and lymphadenopathy. Rarely, acute aseptic meningitis
  develops shortly after infection, as does
  encephalopathy or Guillain-Barr syndrome.
• The most common infection in persons infected
  with HIV who have AIDS is Pneumocystis carinii
  pneumonia, which is characterized by a chronic,
  nonproductive cough, and dyspnea, sometimes
  sufficiently severe to result in hypoxemia and its
  resultant cognitive effects.
• The other disease that was initially associated
  with the development of AIDS is Kaposi's
  sarcoma, a previously rare, blue-purple-tinted
  skin lesion
• The most common infections are from
  protozoa such as Toxoplasma gondii; fungi
  such as Cryptococcus neoformans and
  Candida     albicans; bacteria   such   as
  Mycobacterium avium-intracellulare; and
  viruses such as cytomegalovirus and herpes
  simplex virus.
Neurological Factors
• An extensive array of disease processes can
  affect the brain of a patient infected with HIV.
• The most important diseases for mental
  health workers to be aware of are HIV mild
  neurocognitive disorder and HIV-associated
  dementia.
Conditions Associated with Human Immunodeficiency Virus
                      (HIV) Infection
Psychiatric Syndromes
•   HIV-Associated Dementia:
•   Mild Neurocognitive Disorder
•   Delirium
•   Anxiety Disorders
•   Adjustment Disorder
•   Depressive Disorders
•   Mania
•   Substance Abuse
•   Psychotic Disorder
•   Worried Well
Treatment
• Primary prevention involves protecting persons
  from getting the disease; secondary prevention
  involves modification of the disease's course.

• All persons with any risk of HIV infection should
  be informed about safe-sex practices and about
  the necessity to avoid sharing contaminated
  hypodermic needles.

• Many public health officials have advocated
  condom distribution in schools and the
  distribution of clean needles to drug addicts.
• These issues remain controversial, although condom
  use has been shown to be a fairly (although not
  completely) safe and effective preventive strategy
  against HIV infection.
• Those who are conservative and religious argue that
  the educational message should be sexual abstinence.
• Many university laboratories and pharmaceutical
  companies are attempting to develop a vaccine to
  protect persons from infection by HIV. The
  development of such a vaccine, however, is probably at
  least a decade away.
Pharmacotherapy
• A growing list of agents that act at different points in viral
  replication has raised for the first time the hope that HIV might be
  permanently suppressed or actually eradicated from the body.
• At the time of this writing, the active agents were in two general
  classes: reverse transcriptase inhibitors and protease inhibitors.
• The reverse transcriptase inhibitors are further subdivided into the
  nucleoside reverse transcriptase inhibitor group and the
  nonnucleoside reverse transcriptase inhibitors. I
• n addition to the new nucleoside reverse transcriptase inhibitors,
  nonnucleoside reverse transcriptase inhibitors, and protease
  inhibitors, other classes of drugs are under investigation.
• These include agents that interfere with HIV cell binding and fusion
  inhibitors (e.g., enfurvitide [Fuzeon]), the action of HIV integrase,
  and certain HIV genes such as gag, among others.
Antiretroviral Agents
Psychotherapy
Approaches:
• Major psychodynamic themes for patients infected with HIV involve self-blame,
   self-esteem, and issues regarding death.
• The psychiatrist can help patients deal with feelings of guilt regarding behaviors
   that contributed to infection or AIDS. Some patients with HIV and AIDS feel that
   they are being punished.
• Difficult health care decisions, such as whether to initiate or continue taking
   antiretroviral medication and terminal care and life-support systems, should be
   explored, and here denial of illness may be evident.
• Major practical themes involve employment, medical benefits, life insurance,
   career plans, dating and sex, and relationships with families and friends.
• The entire range of psychotherapeutic approaches may be appropriate for patients
   with HIV-related disorders. Both individual and group therapy can be effective.
• Individual therapy may be either short term or long term and may be supportive,
   cognitive, behavioral, or psychodynamic.
• Group therapy techniques can range from psychodynamic to completely
   supportive in nature.
Therapist-Related Issues:
• Countertransference issues and burnout of therapists
  who treat many patients infected with HIV must be
  evaluated regularly.
• Therapists must acknowledge to themselves their
  predetermined attitudes toward sexual orientation and
  substance use so that those attitudes do not interfere
  with the treatment of the patient.
• Issues regarding the therapist's own sexual identity,
  past behaviors, and eventual death may also give rise
  to countertransference issues.
• Psychotherapists who have practices with
  many patients infected with HIV can begin to
  have their effectiveness impaired by
  professional burnout.
• Some studies have found that seeing many
  such patients in a short time seems to be
  more stressful to therapists than seeing a
  smaller number of those infected with HIV
  over a longer period.
Involvement of Significant Others:
• The patient's family, lover, and close friends are often important
   allies in treatment.

• The patient's spouse or lover may have guilt feelings about possibly
  having infected the patient or may experience anger at the patient
  for possibly infecting him or her.

•  The involvement of members of the patient's support group can
  help the therapist assess the patient's cognitive function and can
  also aid in planning financial and living arrangements for the
  patient.
• The patient's significant others may themselves benefit from the
  attention of the therapist in helping them cope with the illness and
  the impending loss of a friend or family member.
Partner Notification:
• Although no clear consensus has been reached, recommendations
   are that patients who are sexually active and infected with HIV
   should be counseled about potential risk to their sexual partners.
• Additionally, known partners should be notified of exposure risk
   and potential infection as well.
• Partner notification has been an extremely hotly debated topic;
   however, many states have developed legislation requiring or
   allowing either physicians or health department officials to notify
   partners of patients who are HIV infected of their risk.
• The current standard, despite the controversy, appears to be an
   obligation on the part of health care professionals to notify anyone
   who could be construed as clearly at risk and clearly identifiable
   and who may be unaware of their risk.
• A particularly difficult situation is that of sex-industry
  workers known to be HIV infected and known to be working
  actively as prostitutes.
• Public health issues exist that pose a risk both for these
  patients and, depending on the politics of the
  circumstances, for their potential partners, clients,
  customers, victims, or victimizers.
• The response to this problem has ranged from a sense that
  sex-industry workers and their clients can make their own
  decisions and should be responsible for their own behavior
  all the way to the sentiment that such people should be
  arrested and jailed for attempted murder.
• It has additionally been noted that some sex-industry
  workers are impaired by a variety of psychiatric conditions,
  including cognitive impairment, major mental illness,
  personality disorder, and substance abuse disorders.
• These may further contribute to the sense that some sex-
  industry workers may be less than fully responsible for their
  behavior.
• Recommendations have been made for voluntary and
  involuntary interventions regarding these patients.
• Specific psychiatric interventions regarding competency,
  ability to consent, capacity, and, most importantly,
  treatment for the conditions that impair such people are
  critical to the mental health needs of patients with HIV.
Thank you…………….

Mais conteúdo relacionado

Mais procurados

Hiv associated dementia aids dementia complex
Hiv associated dementia aids dementia complexHiv associated dementia aids dementia complex
Hiv associated dementia aids dementia complex
Edson Mutandwa
 
Substance use disorders
Substance use disordersSubstance use disorders
Substance use disorders
Abdo_452
 
Cannabis related disorder
Cannabis related  disorderCannabis related  disorder
Cannabis related disorder
Lokesh Agrawal
 

Mais procurados (20)

Neuropsychiatric aspects of epilepsy
Neuropsychiatric aspects of epilepsyNeuropsychiatric aspects of epilepsy
Neuropsychiatric aspects of epilepsy
 
Psychiatric Symptoms Associated with HIV/AIDS
Psychiatric Symptoms Associated with HIV/AIDSPsychiatric Symptoms Associated with HIV/AIDS
Psychiatric Symptoms Associated with HIV/AIDS
 
Disorders of thought 1
Disorders of thought  1Disorders of thought  1
Disorders of thought 1
 
Conversion disorder
Conversion disorderConversion disorder
Conversion disorder
 
Schizophernia case presentation
Schizophernia case presentationSchizophernia case presentation
Schizophernia case presentation
 
Childhood Psychosis
Childhood PsychosisChildhood Psychosis
Childhood Psychosis
 
Psychosis in Epilepsy
Psychosis in Epilepsy Psychosis in Epilepsy
Psychosis in Epilepsy
 
Novel neurotransmitters by Dr.JagMohan Prajapati
Novel neurotransmitters by Dr.JagMohan Prajapati Novel neurotransmitters by Dr.JagMohan Prajapati
Novel neurotransmitters by Dr.JagMohan Prajapati
 
Alcohol Dependence
Alcohol DependenceAlcohol Dependence
Alcohol Dependence
 
Hiv associated dementia aids dementia complex
Hiv associated dementia aids dementia complexHiv associated dementia aids dementia complex
Hiv associated dementia aids dementia complex
 
Neuropsychiatric aspects of hiv infection and aids
Neuropsychiatric aspects of hiv infection and aidsNeuropsychiatric aspects of hiv infection and aids
Neuropsychiatric aspects of hiv infection and aids
 
Treatment of schizophrenia
Treatment of schizophreniaTreatment of schizophrenia
Treatment of schizophrenia
 
Substance use disorders
Substance use disordersSubstance use disorders
Substance use disorders
 
Withdrawal delirium
Withdrawal deliriumWithdrawal delirium
Withdrawal delirium
 
Cannabis related disorder
Cannabis related  disorderCannabis related  disorder
Cannabis related disorder
 
Schizophrenia
SchizophreniaSchizophrenia
Schizophrenia
 
Schizophrenia & other psychotic disorders
Schizophrenia & other psychotic disordersSchizophrenia & other psychotic disorders
Schizophrenia & other psychotic disorders
 
Hiv and psychiatry
Hiv and psychiatryHiv and psychiatry
Hiv and psychiatry
 
Schizophrenia
SchizophreniaSchizophrenia
Schizophrenia
 
Treatment resistant schizophrenia & Treatment resistant depression
Treatment resistant schizophrenia & Treatment resistant depressionTreatment resistant schizophrenia & Treatment resistant depression
Treatment resistant schizophrenia & Treatment resistant depression
 

Semelhante a Neuropsychiatric aspects of hiv infection and aids

Epidemiology of HIV & AIDS.pptx presentation 2024
Epidemiology of HIV & AIDS.pptx presentation 2024Epidemiology of HIV & AIDS.pptx presentation 2024
Epidemiology of HIV & AIDS.pptx presentation 2024
Motahar Alam
 
Communicable Diseases: HIV and AIDS
Communicable Diseases: HIV and AIDSCommunicable Diseases: HIV and AIDS
Communicable Diseases: HIV and AIDS
Ralph Bawalan
 
Treatment of HIV Infection
Treatment of HIV InfectionTreatment of HIV Infection
Treatment of HIV Infection
banditto
 

Semelhante a Neuropsychiatric aspects of hiv infection and aids (20)

HIV Transmission Modes.ppt
HIV Transmission Modes.pptHIV Transmission Modes.ppt
HIV Transmission Modes.ppt
 
Hiv lecture of aware ness
Hiv lecture of aware nessHiv lecture of aware ness
Hiv lecture of aware ness
 
Hiv infection
Hiv    infectionHiv    infection
Hiv infection
 
Hiv aids
Hiv aidsHiv aids
Hiv aids
 
Epidemiology of HIV & AIDS.pptx presentation 2024
Epidemiology of HIV & AIDS.pptx presentation 2024Epidemiology of HIV & AIDS.pptx presentation 2024
Epidemiology of HIV & AIDS.pptx presentation 2024
 
HIV in the Philippines (esp. cebu)
HIV in the Philippines (esp. cebu)HIV in the Philippines (esp. cebu)
HIV in the Philippines (esp. cebu)
 
World aids day
World aids dayWorld aids day
World aids day
 
PBH101 Lecture # 7.ppt
PBH101 Lecture # 7.pptPBH101 Lecture # 7.ppt
PBH101 Lecture # 7.ppt
 
Communicable Diseases: HIV and AIDS
Communicable Diseases: HIV and AIDSCommunicable Diseases: HIV and AIDS
Communicable Diseases: HIV and AIDS
 
HIV
HIVHIV
HIV
 
control of HIV AIDS infection 1.pptx
control of HIV AIDS infection        1.pptxcontrol of HIV AIDS infection        1.pptx
control of HIV AIDS infection 1.pptx
 
Aids presentation
Aids presentationAids presentation
Aids presentation
 
Hiv aids & tuberculosis in south africa
Hiv aids & tuberculosis in south africaHiv aids & tuberculosis in south africa
Hiv aids & tuberculosis in south africa
 
HIV, ARV
HIV, ARV HIV, ARV
HIV, ARV
 
Prevention and Control of AIDS for World AIDS day
Prevention and Control of AIDS for World AIDS dayPrevention and Control of AIDS for World AIDS day
Prevention and Control of AIDS for World AIDS day
 
Hiv mapo
Hiv mapoHiv mapo
Hiv mapo
 
Treatment of HIV Infection
Treatment of HIV InfectionTreatment of HIV Infection
Treatment of HIV Infection
 
Hiv presentation
Hiv presentationHiv presentation
Hiv presentation
 
What is aids
What is aidsWhat is aids
What is aids
 
Hiv aids
Hiv aidsHiv aids
Hiv aids
 

Mais de Nilesh Kucha

Mais de Nilesh Kucha (20)

Chapter 39 role of radiotherapy in benign diseases.pptx [read only]
Chapter 39 role of radiotherapy in benign diseases.pptx [read only]Chapter 39 role of radiotherapy in benign diseases.pptx [read only]
Chapter 39 role of radiotherapy in benign diseases.pptx [read only]
 
Chapter 39 role of radiotherapy in benign diseases
Chapter 39 role of radiotherapy in benign diseasesChapter 39 role of radiotherapy in benign diseases
Chapter 39 role of radiotherapy in benign diseases
 
Chapter 39 role of radiotherapy in benign diseases
Chapter 39 role of radiotherapy in benign diseasesChapter 39 role of radiotherapy in benign diseases
Chapter 39 role of radiotherapy in benign diseases
 
Chapter 38 role of surgery in cancer prevention
Chapter 38 role of surgery in cancer preventionChapter 38 role of surgery in cancer prevention
Chapter 38 role of surgery in cancer prevention
 
Chapter 37 svco
Chapter 37 svcoChapter 37 svco
Chapter 37 svco
 
Chapter 36 t reg cells
Chapter 36 t reg cellsChapter 36 t reg cells
Chapter 36 t reg cells
 
Chapter 35 tumor lysis syndrome
Chapter 35 tumor lysis syndromeChapter 35 tumor lysis syndrome
Chapter 35 tumor lysis syndrome
 
Chapter 34 medical stat
Chapter 34 medical statChapter 34 medical stat
Chapter 34 medical stat
 
Chapter 33 isolated tumor cells
Chapter 33 isolated tumor cellsChapter 33 isolated tumor cells
Chapter 33 isolated tumor cells
 
Chapter 32 invasion and metastasis
Chapter 32 invasion and metastasisChapter 32 invasion and metastasis
Chapter 32 invasion and metastasis
 
Chapter 31 genetic counselling
Chapter 31 genetic counsellingChapter 31 genetic counselling
Chapter 31 genetic counselling
 
Chapter 30 febrile neutropenia
Chapter 30 febrile neutropeniaChapter 30 febrile neutropenia
Chapter 30 febrile neutropenia
 
Chapter 29 dendritic cells
Chapter 29 dendritic cellsChapter 29 dendritic cells
Chapter 29 dendritic cells
 
Chapter 28 clincal trials
Chapter 28 clincal trials Chapter 28 clincal trials
Chapter 28 clincal trials
 
Chapter 27 chemotherapy side effects dr lms
Chapter 27 chemotherapy side effects  dr lmsChapter 27 chemotherapy side effects  dr lms
Chapter 27 chemotherapy side effects dr lms
 
Chapter 26 chemoprevention of cancer
Chapter 26 chemoprevention of cancerChapter 26 chemoprevention of cancer
Chapter 26 chemoprevention of cancer
 
Chapter 25 assessment of clincal responses
Chapter 25 assessment of clincal responsesChapter 25 assessment of clincal responses
Chapter 25 assessment of clincal responses
 
Chapter 24.3 metronomic chemotherapy
Chapter 24.3 metronomic chemotherapyChapter 24.3 metronomic chemotherapy
Chapter 24.3 metronomic chemotherapy
 
Chapter 24.2 lmwh in cancer asso thrombosis
Chapter 24.2 lmwh in cancer asso thrombosisChapter 24.2 lmwh in cancer asso thrombosis
Chapter 24.2 lmwh in cancer asso thrombosis
 
Chapter 24.1 kinase inhibitors and monoclonal antibodies
Chapter 24.1 kinase inhibitors and monoclonal antibodiesChapter 24.1 kinase inhibitors and monoclonal antibodies
Chapter 24.1 kinase inhibitors and monoclonal antibodies
 

Último

Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
Dipal Arora
 
Russian Escorts Girls Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
Russian Escorts Girls  Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls DelhiRussian Escorts Girls  Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
Russian Escorts Girls Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
AlinaDevecerski
 
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
Dipal Arora
 

Último (20)

Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
Call Girls Bhubaneswar Just Call 9907093804 Top Class Call Girl Service Avail...
 
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
 
Russian Escorts Girls Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
Russian Escorts Girls  Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls DelhiRussian Escorts Girls  Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
Russian Escorts Girls Nehru Place ZINATHI 🔝9711199012 ☪ 24/7 Call Girls Delhi
 
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
 
Call Girls Coimbatore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Coimbatore Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Coimbatore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Coimbatore Just Call 9907093804 Top Class Call Girl Service Available
 
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
 
Call Girls Jabalpur Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Jabalpur Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Jabalpur Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Jabalpur Just Call 8250077686 Top Class Call Girl Service Available
 
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
 
Call Girls Gwalior Just Call 8617370543 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 8617370543 Top Class Call Girl Service AvailableCall Girls Gwalior Just Call 8617370543 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 8617370543 Top Class Call Girl Service Available
 
Book Paid Powai Call Girls Mumbai 𖠋 9930245274 𖠋Low Budget Full Independent H...
Book Paid Powai Call Girls Mumbai 𖠋 9930245274 𖠋Low Budget Full Independent H...Book Paid Powai Call Girls Mumbai 𖠋 9930245274 𖠋Low Budget Full Independent H...
Book Paid Powai Call Girls Mumbai 𖠋 9930245274 𖠋Low Budget Full Independent H...
 
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 8250077686 Top Class Call Girl Service Available
 
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
 
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore EscortsVIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escorts
 
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
 
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
 
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore EscortsCall Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
 
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
 
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
 
Call Girls Visakhapatnam Just Call 9907093804 Top Class Call Girl Service Ava...
Call Girls Visakhapatnam Just Call 9907093804 Top Class Call Girl Service Ava...Call Girls Visakhapatnam Just Call 9907093804 Top Class Call Girl Service Ava...
Call Girls Visakhapatnam Just Call 9907093804 Top Class Call Girl Service Ava...
 
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
 

Neuropsychiatric aspects of hiv infection and aids

  • 1. Neuropsychiatric Aspects of HIV Infection and AIDS
  • 2. Overview of HIV Transmission • Human immunodeficiency virus is a retrovirus related to the human T-cell leukemia viruses (HTLV) and to retroviruses that infect animals, including nonhuman primates. • two types of HIV have been identified, HIV-1 and HIV-2. • HIV-1 is the causative agent for most HIV-related diseases; HIV-2, however, seems to be causing an increasing number of infections in Africa. • Other subtypes of HIV may exist, which are now classified as HIV-O.
  • 3. • HIV is present in blood, semen, cervical and vaginal secretions, and, to a lesser extent, in saliva, tears, breast milk, and the cerebrospinal fluid of those who are infected. • HIV is most often transmitted through sexual intercourse or the transfer of contaminated blood from one person to another. • Unprotected anal and vaginal sex are the sexual activities most likely to transmit the virus. • Oral sex has also been implicated, but rarely. • Health providers should be aware of the guidelines for safe sexual practices and should advise their patients to practice safe sex .
  • 4. Pathogenesis • Once a person is infected with HIV, the virus primarily targets T4 (helper) lymphocytes, also called CD4+ lymphocytes, to which the virus binds because a glycoprotein (gp120) on the viral surface has a high affinity for the CD4 receptor on T4 lymphocytes. • After binding, the virus can inject its RNA into the infected lymphocyte, where the RNA is transcribed into DNA by the action of reverse transcriptase. • The resultant DNA can then be incorporated into the host cell's genome and translated and eventually transcribed, once the lymphocyte is stimulated to divide. • After viral proteins have been produced by lymphocytes, the various components of the virus assemble, and new mature viruses bud off from the host cell. • Although the process of budding may cause lysis of the lymphocyte, other HIV pathophysiological mechanisms can gradually disable a patient's entire complement of T4 lymphocytes.
  • 5.
  • 6. AIDS Safe-Sex Guidelines Remember: Any activity that allows for the exchange of body fluids of one person through the mouth, anus, vagina, bloodstream, cuts, or sores of another person is considered unsafe at this time. Safe-sex practices: • Massage, hugging, body-to-body rubbing • Dry social kissing • Masturbation • Acting out sexual fantasies (that do not include any unsafe-sex practices) • Using vibrators or other instruments (provided they are not shared)
  • 7.  Low-risk sex practices: • These activities are not considered completely safe: – French (wet) kissing (without mouth sores) – Mutual masturbation – Vaginal and anal intercourse while using a condom – Oral sex, male (fellatio), while using a condom Oral sex, – female (cunnilingus), while using a barrier – External contact with semen or urine, provided there are no breaks in the skin
  • 8. Unsafe-sex practices: • Vaginal or anal intercourse without a condom • Semen, urine, or feces in the mouth or the vagina • Unprotected oral sex (fellatio or cunnilingus) • Blood contact of any kind • Sharing sex instruments or needles
  • 9. • The presence of sexually transmitted diseases, such as herpes or syphilis, or other lesions that compromise the integrity of skin or mucosa, further increases the risk of transmission. • Transmission also occurs through exposure to contaminated needles, thus accounting for the high incidence of HIV infection among drug users. • HIV is also transmitted by infusions of whole blood, plasma, and clotting factors, but not immune serum globulin or hepatitis B vaccine.
  • 10. • male-to-male transmission has been the most common route of sexual transmission in North America, male-to- female and female-to-male transmissions are increasing, and they represent most transmission worldwide. • Transmission by contaminated blood most often occurs when those abusing a substance intravenously (IV) share hypodermic needles without proper sterilization techniques. • Transmission of HIV through blood transfusions, organ transplantation, and artificial insemination is no longer a problem now that donors are tested for HIV infection. • Many hemophilia patients, however, received transfusions of HIV-infected blood products before HIV was identified as the causative agent.
  • 11. • Children can be infected in utero or through breast-feeding when their mothers are infected with HIV. • Zidovudine (Retrovir) and protease inhibitors taken by the HIV-infected pregnant woman prevent perinatal transmission in more than 95 percent of cases. • Health workers are theoretically at risk because of potential contact with bodily fluids from HIV-infected patients. • No evidence has been found that HIV can be contracted through casual contact, such as by sharing a living space or a classroom with a person who is infected, although direct and indirect contact with an infected person's bodily fluids, such as blood and semen, should be avoided .
  • 12. Centers for Disease Control and Prevention (CDC) Guidelines for the Prevention of HIV Transmission from Infected to Uninfected Persons Infected persons should be counseled to prevent the further transmission of HIV by: 1. Informing prospective sex partners of their infection with HIV, so they can take appropriate precautions. Abstention from sexual activity with another person is one option that would eliminate any risk of sexually transmitted HIV infection. 2. Protecting a partner during any sexual activity by taking appropriate precautions to prevent that person's coming into contact with the infected person's blood, semen, urine, feces, saliva, cervical secretions, or vaginal secretions. Although the efficacy of using condoms to prevent infections with HIV is still under study, the consistent use of condoms should reduce the transmission of HIV by preventing exposure to semen and infected lymphocytes. 3. Informing previous sex partners and any persons with whom needles were shared of their potential exposure to HIV and encouraging them to seek counseling and testing.
  • 13. 4. For IV drug abusers, enrolling or continuing in programs to eliminate the abuse of IV substances. Needles, other apparatus and drugs must never be shared. 5. Never sharing toothbrushes, razors, or other items that could become contaminated with blood. 6. Refraining from donating blood, plasma, body organs, other tissue, or semen. 7. Avoiding pregnancy until more is known about the risks of transmitting HIV from the mother to the fetus or newborn. 8. Cleaning and disinfecting surfaces on which blood or other body fluids have spilled, in accordance with previous recommendations 9. Informing physicians, dentists, and other appropriate health professionals of antibody status when seeking medical care, so that the patient can be appropriately evaluated
  • 14. Diagnosis Serum Testing: • Techniques are now widely available to detect the presence of anti-HIV antibodies in human serum. • The conventional test uses blood (time to result, 3 to 10 days) and the rapid test uses an oral swab (time to result, 20 minutes). • Both tests are 99.9 percent sensitive and specific. • Health care workers and their patients must understand that the presence of HIV antibodies indicates infection, not immunity to infection. • Those with a positive finding on an HIV test have been exposed to the virus, have the virus within their bodies, have the potential to transmit the virus to another person, and will almost certainly eventually develop AIDS.
  • 15. Counseling • The major issues in counseling persons about HIV serum testing are who should be tested; why a particular person should or should not be tested; what the test results signify; and what the implications are. • Although specific groups of persons are at high risk for contracting HIV and should be tested , any person who wants to be tested should probably be tested.
  • 16. Possible Indications for Human Immunodeficiency Virus (HIV) Testing
  • 19. Confidentiality • Confidentiality is a key issue in serum testing. No one should be given an HIV test without previous knowledge and consent, although various jurisdictions and organizations, such as the military, now require HIV testing for all inhabitants or members. • The results of an HIV test can be shared with other members of a medical team, although the information should be provided to no one else except in the special circumstances discussed below. • The patient should be advised against disclosing the results of HIV testing too readily to employers, friends, and family members; the information could result in discrimination in employment, housing, and insurance.
  • 20. • The major exception to restriction of disclosure is the need to notify potential and past sexual or IV substance use partners. Most patients who are HIV positive act responsibly. • If, however, a treating physician knows that a patient who is HIV infected is putting another person at risk of becoming infected, the physician may try either to hospitalize the infected person involuntarily (to prevent danger to others) or to notify the potential victim.
  • 21. Clinical Features Nonneurological Factors: • About 30 percent of persons infected with HIV experience a flulike syndrome 3 to 6 weeks after becoming infected; most never notice any symptoms immediately or shortly after their infection. • When symptoms do appear, the flulike syndrome includes fever, myalgia, headaches, fatigue, gastrointestinal symptoms, and sometimes a rash. • The syndrome may be accompanied by splenomegaly and lymphadenopathy. Rarely, acute aseptic meningitis develops shortly after infection, as does encephalopathy or Guillain-Barr syndrome.
  • 22. • The most common infection in persons infected with HIV who have AIDS is Pneumocystis carinii pneumonia, which is characterized by a chronic, nonproductive cough, and dyspnea, sometimes sufficiently severe to result in hypoxemia and its resultant cognitive effects. • The other disease that was initially associated with the development of AIDS is Kaposi's sarcoma, a previously rare, blue-purple-tinted skin lesion
  • 23. • The most common infections are from protozoa such as Toxoplasma gondii; fungi such as Cryptococcus neoformans and Candida albicans; bacteria such as Mycobacterium avium-intracellulare; and viruses such as cytomegalovirus and herpes simplex virus.
  • 24. Neurological Factors • An extensive array of disease processes can affect the brain of a patient infected with HIV. • The most important diseases for mental health workers to be aware of are HIV mild neurocognitive disorder and HIV-associated dementia.
  • 25. Conditions Associated with Human Immunodeficiency Virus (HIV) Infection
  • 26. Psychiatric Syndromes • HIV-Associated Dementia: • Mild Neurocognitive Disorder • Delirium • Anxiety Disorders • Adjustment Disorder • Depressive Disorders • Mania • Substance Abuse • Psychotic Disorder • Worried Well
  • 27. Treatment • Primary prevention involves protecting persons from getting the disease; secondary prevention involves modification of the disease's course. • All persons with any risk of HIV infection should be informed about safe-sex practices and about the necessity to avoid sharing contaminated hypodermic needles. • Many public health officials have advocated condom distribution in schools and the distribution of clean needles to drug addicts.
  • 28. • These issues remain controversial, although condom use has been shown to be a fairly (although not completely) safe and effective preventive strategy against HIV infection. • Those who are conservative and religious argue that the educational message should be sexual abstinence. • Many university laboratories and pharmaceutical companies are attempting to develop a vaccine to protect persons from infection by HIV. The development of such a vaccine, however, is probably at least a decade away.
  • 29. Pharmacotherapy • A growing list of agents that act at different points in viral replication has raised for the first time the hope that HIV might be permanently suppressed or actually eradicated from the body. • At the time of this writing, the active agents were in two general classes: reverse transcriptase inhibitors and protease inhibitors. • The reverse transcriptase inhibitors are further subdivided into the nucleoside reverse transcriptase inhibitor group and the nonnucleoside reverse transcriptase inhibitors. I • n addition to the new nucleoside reverse transcriptase inhibitors, nonnucleoside reverse transcriptase inhibitors, and protease inhibitors, other classes of drugs are under investigation. • These include agents that interfere with HIV cell binding and fusion inhibitors (e.g., enfurvitide [Fuzeon]), the action of HIV integrase, and certain HIV genes such as gag, among others.
  • 31.
  • 32. Psychotherapy Approaches: • Major psychodynamic themes for patients infected with HIV involve self-blame, self-esteem, and issues regarding death. • The psychiatrist can help patients deal with feelings of guilt regarding behaviors that contributed to infection or AIDS. Some patients with HIV and AIDS feel that they are being punished. • Difficult health care decisions, such as whether to initiate or continue taking antiretroviral medication and terminal care and life-support systems, should be explored, and here denial of illness may be evident. • Major practical themes involve employment, medical benefits, life insurance, career plans, dating and sex, and relationships with families and friends. • The entire range of psychotherapeutic approaches may be appropriate for patients with HIV-related disorders. Both individual and group therapy can be effective. • Individual therapy may be either short term or long term and may be supportive, cognitive, behavioral, or psychodynamic. • Group therapy techniques can range from psychodynamic to completely supportive in nature.
  • 33. Therapist-Related Issues: • Countertransference issues and burnout of therapists who treat many patients infected with HIV must be evaluated regularly. • Therapists must acknowledge to themselves their predetermined attitudes toward sexual orientation and substance use so that those attitudes do not interfere with the treatment of the patient. • Issues regarding the therapist's own sexual identity, past behaviors, and eventual death may also give rise to countertransference issues.
  • 34. • Psychotherapists who have practices with many patients infected with HIV can begin to have their effectiveness impaired by professional burnout. • Some studies have found that seeing many such patients in a short time seems to be more stressful to therapists than seeing a smaller number of those infected with HIV over a longer period.
  • 35. Involvement of Significant Others: • The patient's family, lover, and close friends are often important allies in treatment. • The patient's spouse or lover may have guilt feelings about possibly having infected the patient or may experience anger at the patient for possibly infecting him or her. • The involvement of members of the patient's support group can help the therapist assess the patient's cognitive function and can also aid in planning financial and living arrangements for the patient. • The patient's significant others may themselves benefit from the attention of the therapist in helping them cope with the illness and the impending loss of a friend or family member.
  • 36. Partner Notification: • Although no clear consensus has been reached, recommendations are that patients who are sexually active and infected with HIV should be counseled about potential risk to their sexual partners. • Additionally, known partners should be notified of exposure risk and potential infection as well. • Partner notification has been an extremely hotly debated topic; however, many states have developed legislation requiring or allowing either physicians or health department officials to notify partners of patients who are HIV infected of their risk. • The current standard, despite the controversy, appears to be an obligation on the part of health care professionals to notify anyone who could be construed as clearly at risk and clearly identifiable and who may be unaware of their risk.
  • 37. • A particularly difficult situation is that of sex-industry workers known to be HIV infected and known to be working actively as prostitutes. • Public health issues exist that pose a risk both for these patients and, depending on the politics of the circumstances, for their potential partners, clients, customers, victims, or victimizers. • The response to this problem has ranged from a sense that sex-industry workers and their clients can make their own decisions and should be responsible for their own behavior all the way to the sentiment that such people should be arrested and jailed for attempted murder.
  • 38. • It has additionally been noted that some sex-industry workers are impaired by a variety of psychiatric conditions, including cognitive impairment, major mental illness, personality disorder, and substance abuse disorders. • These may further contribute to the sense that some sex- industry workers may be less than fully responsible for their behavior. • Recommendations have been made for voluntary and involuntary interventions regarding these patients. • Specific psychiatric interventions regarding competency, ability to consent, capacity, and, most importantly, treatment for the conditions that impair such people are critical to the mental health needs of patients with HIV.