Situation épidémiologique de l’infection à VIH/sidaSituation épidémiologique de l’infection...
Transcript of Situation épidémiologique de l’infection à VIH/sidaSituation épidémiologique de l’infection...
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Session 2
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Module goals
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Module 2: Natural history and clinical aspects M
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Participants will be able to: -offer an insight into the epidemiological situation in the country and worldwide -present the HIV transmission modes and the broad approaches to prevention -implement post-exposure prophylaxis for HIV in the health care environment.
Participants will be able to: -describe the natural history of the HIV infection -expose the main circumstances in which the HIV infection is discovered -describe some of the clinical manifestations of the HIV/AIDS infection.
Participants will be able to: - name the techniques used for the biological diagnosis of the HIV infection - argue the need to comply with ethical and confidentiality imperatives in the health care environment - name the interventions to reduce HIV stigma and discrimination in health care settings.
Participants will be able to: - inform a PLHIV about how care is organized in the country - inform a PLHIV about the principles of care - inform parents about the care available for a newborn baby, infant or child infected by HIV - argue the need for optimal adherence to antiretroviral therapy.
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Module 2: Natural history and clinical aspects M
odul
e 1
Mod
ule
2 M
odul
e 3
Mod
ule
4
Participants will be able to: -offer an insight into the epidemiological situation in the country and worldwide -present the HIV transmission modes and the broad approaches to prevention -implement post-exposure prophylaxis for HIV in the health care environment.
Participants will be able to: -describe the natural history of the HIV infection -expose the main circumstances in which the HIV infection is discovered -describe some of the clinical manifestations of the HIV/AIDS infection.
Participants will be able to: - name the techniques used for the biological diagnosis of the HIV infection - argue the need to comply with ethical and confidentiality imperatives in the health care environment - name the interventions to reduce HIV stigma and discrimination in health care settings.
Participants will be able to: - inform a PLHIV about how care is organized in the country - inform a PLHIV about the principles of care - inform parents about the care available for a newborn baby, infant or child infected by HIV - argue the need for optimal adherence to antiretroviral therapy.
![Page 5: Situation épidémiologique de l’infection à VIH/sidaSituation épidémiologique de l’infection à VIH/sida Author: Pr. Kamal Marhoum El Filali Subject: Kit de formation VIH de](https://reader034.fdocuments.us/reader034/viewer/2022050222/5f67e8cbd625302a5a4c78c0/html5/thumbnails/5.jpg)
Early manifestations of HIV infection
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Module 2: Natural history and clinical aspects
• HIV infection is rarely suspected at this stage
• Often, there are no symptoms
• When there are symptoms, they are not specific to HIV: - Fever and/or influenza-like syndrome
- Rash, etc
Primary infection
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Module 2: Natural history and clinical aspects
• Asthenia
• Prolonged or relapsing fever
• Night sweating
• Weight loss
Physical symptoms
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Mucocutaneous manifestations
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Module 2: Natural history and clinical aspects
Oropharyngal candidiasis
Phot
o: ©
K. E
l Fila
li
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Module 2: Natural history and clinical aspects
Hairy leukoplakia
Phot
o: ©
K. E
l Fila
li
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Module 2: Natural history and clinical aspects
Herpes zoster
Phot
o: ©
K. E
l Fila
li
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Module 2: Natural history and clinical aspects
Prurigo Ph
oto:
© R
. Suh
onen
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Module 2: Natural history and clinical aspects
Seborrhoeic dermatitis Ph
oto:
© R
. Suh
onen
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Module 2: Natural history and clinical aspects
• Chronic diarrhoea: related to a banal or opportunistic
intestinal parasitosis
• Relapsing florid oropharyngeal candidiasis
Digestive manifestations
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Module 2: Natural history and clinical aspects
Respiratory manifestations Tuberculosis
Ph
oto:
© K
. El F
ilali
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Module 2: Natural history and clinical aspects
• Early manifestations are the circumstances in which HIV
infection is discovered
• Health care personnel must be trained to recognize early
manifestations of HIV infection
• Early diagnosis enables: - Early care
- Better immune restoration
- Reduced transmission
Conclusion
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Main clinical manifestations of HIV
infection
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Module 2: Natural history and clinical aspects
• Have you already had the opportunity to take care of an HIV
patient?
• If so, describe the symptoms and signs you observed
• In your opinion, are these early manifestations of an HIV
infection?
Brainstorming
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Module 2: Natural history and clinical aspects
• Can you name the respiratory symptoms observed during
the HIV infection?
• Can the patient die as a result of these symptoms?
Brainstorming
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Module 2: Natural history and clinical aspects
• If you are examining a febrile, moderately dyspneic patient
who coughs and expectorates whitish sputum, what
possible causes would you consider?
Brainstorming
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Module 2: Natural history and clinical aspects
• Bacterial pneumonia
• Tuberculosis
• Pneumocystosis
The most frequent respiratory impairments In practice
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Module 2: Natural history and clinical aspects
• In cases of moderate immunodeficiency, similar symptoms
to an immunocompetent subject
• In cases of deep immunodeficiency - Frequency of extensive and serious forms - Emergence of resistant BK - Secondary effects of antituberculosis drugs
• Diagnosis - BK ++ - Thorax X-ray: often normal
Tuberculosis
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Pneumocystosis during AIDS
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Module 2: Natural history and clinical aspects
Epidemiology
• The germ: currently classified among fungi Pneumocystis
jirovecii
• Source of contamination: patients and carriers of
Pneumocystis
• Aerial transmission
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Module 2: Natural history and clinical aspects
Clinical presentation
• Pulmonary pneumocystosis - Start (CD4 < 200 cells /mm3)
• Progressive
• Dry cough with dyspnea and fever
- Evolution towards acute respiratory failure
• Disseminated extrapulmonary forms: ganglionic, medullar,
etc.
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Module 2: Natural history and clinical aspects
Prophylaxis and treatment
• Primary and secondary prophylaxis: co-trimoxazole
• Curative treatment - Co-trimoxazole
- Oxygenation in serious forms
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Module 2: Natural history and clinical aspects
Brainstorming
• If you are examining a patient infected with HIV who
presents a motor deficiency of monoplegia or hemiplegia
type accompanied by fever, what possible causes would you
consider?
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Module 2: Natural history and clinical aspects
• Cerebral toxoplasmosis
• Cerebral tuberculoma
• Pyogenic cerebral abscess
The most frequent focalized neurological impairments In practice
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Module 2: Natural history and clinical aspects
Cerebral toxoplasmosis
• Inaugural manifestation of AIDS in 11% of cases
• Symptomatology - Persistent headache
- Signs of localization: hemiparesia …
- Fever: 38 °C – 38.5 °C
- Consciousness disorders
- Partial or general convulsive crisis
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Module 2: Natural history and clinical aspects
• Imaging (CT, RMI)
• Trial treatment - Major diagnosis argument if response is positive within 14 days
• Toxoplasmosis serology
Diagnostic arguments
Photo: © K. El Filali
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Module 2: Natural history and clinical aspects
Cryptococcosis
• Start: - Gradual, insidious - Persistent headache - Moderate fever
• Followed by: vertigo, mood disorder, motor and sensory
deficit
• Lumbar puncture (India ink stain) - Cryptococcus neoformans
• Cryptococcosis antigen test: cerebrospinal fluid, blood,
urine…
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Module 2: Natural history and clinical aspects
HIV encephalitis
• In patients either untreated or whose therapy has failed
• Clinical - Attention and concentration disorders - Memory disorders - Depression - In an evolved phase: dementia
• Diagnosis - Cerebral MRI - Elimination diagnosis