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Sexually transmitted disease
(STD)
Made by: DR.FIDWA ARSHAD ALI UNDERSUPERVISION OF LT.COL DR M.FAROOQ
Syphilis:
 Def: Std caused by a spirochete Treponema pallidum
 Clinical Features : based on clinical features it is divided into four main types
namely:
 1.Primary syphilis
 2.secondary syphilis
 3.Latent syphilis
 4.Tertiary syphilis
 5.Congenital syphilis
Primary Syphilis:
o Occurs 9-10 after infection
o Presents as Chancre i.e painless ulcer with clean base, raised indurated borders
usually in the genital areas
o Draining lymph nodes may be enlarged, mobile and rubbery
o Both chancre and lymph nodes are PAINLESS.
o Fate:
o Without treatment, the chancre will resolve within 2-6 weeks
Penile chancre, shaft
Source: Dr. John Toney, Southeast STD/HIV Prevention
Training Center Penile chancre, underside
of glans
Source: Public Health Agency of Canada
Secondary Syphilis:
 It occurs 6 - 8 weeks after chancre
 Clinical feature: It presents with low-grade fever, headache, malaise, and
generalized non-tender lymphadenopathy. "Snail track ulcer" in the mouth Non-
pruritic, symmetrical maculopapular rash on the soles and palms.
 Fate: 1. Without treatment the rash may last for up to 12 weeks.
 2. Condylomata Lata:• Flat wart-like peri-anal and mucous membrane lesions
 .Highly contagious
Palmar and plantar rash
Source: Connie Celum, Walter Stamm, Seattle
STD/HIV Prevention Training Center
Latent Syphilis:
 It refers to positive syphilis serology with no evidence of clinical disease.
 It is divided into two phases:
 Early Latent Syphilis:•
 No symptoms, positive serology within 2 years of infection• Patient is sexually
infectious.•
 Late Latent Syphilis:
 No symptoms, after 2 years of infection.
 Patient is NOT sexually infectious.
Tertiary Syphilis;
 occurs between 3 - 10 years after infection.
 The characteristic feature is a chronic granulomatous lesion called a"gumma".,
 The classic features are:
 General paresis (dementia)
 Cardiovascular findings (aortic root aneurysm, aorticregurgitation)
 Neurosyphilis (Tabes Dorsalis, Argyll-Robertson pupil,Meningo-vascular stroke)
Diagnosis:
 Dark-field microscopy = identifies motile spirochetes in primary &secondary
syphilis.
 Non-specific Tests:VDRL test (venereal diseases research laboratory)
 RPR test (rapid plasma reagin)
 Specific Test:
 FTA-ABS test (fluorescent treponemal antibody-absorbed test)
 TP-ELA test (treponemal antigen-based enzyme immunoassay test)
Treatment:
 Penicillin is the drug of choice for all the stages of syphilis.
 Doxycycline is used for penicillin-allergic patients.
 Pregnancy:Penicillin is the drug of choice
 .Penicillin-allergic patients:-
 Penicillin de-sensitization, followed by penicillin, OR Erythromycin for pregnant
woman and penicillin for newborn baby (to protect baby from syphilis as
erythromycin crosses placenta poorly)
Gonorrhea:
 It is caused by Neisseria gonorrhoeae:
 is a gram-negative diplococcus.
 Incubation period is 2 - 10 days.
 Mode of transmission = vaginal, anal, or oral sex
Clinical Features:
 In men : It commonly involves the anterior urethra.
 Urethritis with purulent urethral discharge .Dysuria; proctitis
 In women:80% of women who have gonorrhea are asymptomatic.
 Greenish-yellow discharge. Adnexal or pelvic pain.
 Disease spectrum is as follows:
 Vulva= Skene gland adenitis.
 Vagina= Vaginitis
 Cervix= Acute cervicitis
 Uterus= Acute endometritis
 Fallopian tube= Acute salpingitis
Complications:
 Acute prostatitis and epididymo-orchitis in men
 Bartholin's gland abscess
 Ectopic pregnancy
 Disseminated Gonococcemia
 Monoarticular septic arthritis
 Rash - hemorrhagic, painful pustules.
 Tenosynovitis
 Diagnosis & Treatment:
 Gram stain and culture is the Gold Standard.
 NAAT of urine.
 Treatment : Cefixime, OR Ceftriaxone (contraindicated during pregnancy)*
chlamydia
 It is caused by Chlamydia trachomatis; an obligate intracellular bacterium
 Serotypes:
 Serotypes A,B,C = Trachoma (follicular conjunctivitis with cornealscarring)
 Serotypes L1-L3 = Lymphogranuloma venereum
Lymphogranuloma venereum
Lymphogranulora Venereum (LGM):
 It is caused by chlamydia trachomatis serotypes L1, 2, 3.
 Clinical Features: Painless ulcer . Ulcer is small, transient and often unnoticed.
 Inguinal lymph nodes are tender, unilateral, matted, but multilocular.
 Treatment: Doxycycline, OR Erythromycin
Clinical Features:
 Clinical Features;80% of women who have chlamydia are asymptomatic.
 • Mucopurulent cervical discharge (classic finding)
 Cervical motion tenderness.
 Intermenstrual or post-coital bleeding
 Complications:Reiter's syndrome
 Fitz-Hugh-Curtis Syndromefibrosis
 .Infertility & ectopic pregnancy = from PID.
 urethritis, conjunctivitis, arthritis
 peri-hepatic inflammation
Diagnosis:
 Diagnosis is usually clinical.
 Gram stain of discharge may show neutrophils, but no bacteria(intracellular)
 Culture is the Gold Standard,
 Nucleic acid amplification test (NAAT) of urine for rapid diagnosis.- Treatment:
Azithromycin 1gm orally as a single dose,
 OR• Doxycycline orally for 7 days
Human Papilloma Virus (HPV):
 HPV has over 90 genotypes:
 HPV-6, 11, 16, and 18 most commonly infect the genital tract through sexual
transmission
 Clinical Features:
 Genotypes 6 and 11:
 Cause ano-genital warts, which may be single, multiple, exophytic or flat.
 Buschke -Lewenstein tumor :refers to a giant condyloma with local tissue
destruction
 Genotypes 16 and 18:
 Cause dysplastic conditions and cancers of genital tract Can affect penis, vulva,
vagina, cervix, perineum, or anus.
condyloma
Treatment:
 Podophyllotoxin = for home treatment of external warts (contraindicatedin pregnancy)
 Imiquimod cream = for home treatment of external warts (contraindicatedin pregnancy)
 Cryotherapy = for treatment of internal and external warts•
 Hyfrecation (electrofulgration that causes charring) = for external &internal warts
 Surgical removal
 Prevention:- Bivalent vaccine protection against HPV-16, 18
 Quadrivalent vaccine protection against HPV-6, 11
 Current recommendation are:
 HPV should be administered prior to the onset of sexualactivity.
 Typically at age 11 - 13, in a course of 3 injections
Sexually Transmitted genital leisions:
 Granuloma Inguinale:• Also known as "Donovanosis".
 It is caused by Klebsiella granulomatis.
 Clinical Features: Beefy-red ulcer; hypertrophic granulomatous lesions Pain less
 Diagnosis = Biopsy (Donovan bodies), which are intracellular bipolar staining
bodies.
 Treatment: Azithromycin, OR Doxycycline
Granuloma Inguinale
Donovanosis
Chancroid:
 Chancroid: It is caused by Hemophilus ducreyi; a gram-negative rod.
 Clinical Features:
 Painful ulcers (mnemonic: you cry with ducreyi):Ulcers are irregular, deep, and well-
demarcated with ragged undermined edge.
 Inguinal lymph nodes are tender, unilateral, matted and unilocular.
 Treatment: Single dose of oral azithromycin.
 OR Single dose of IM ceftriaxone.- Lymphogranulora Venereum (LGM):• It is caused
by chlamydia trachomatis serotypes L1, 2, 3.OClinical Features:Painless ulcer.Ulcer
is small, transient and often unnoticed.Inguinal lymph nodes are tender, unilateral,
matted, butmultilocular.o Treatment:Doxycycline, ORErythromycin
HIV
 Virology:•
 HIV stands for human immunodeficiency virus.•
 AIDS stands for acquired immunodeficiency syndrome.
 • AIDS is caused by:• HIV-1.HIV is a single-stranded RNA retrovirus.
 HIV belongs to Lentivirus group of retrovirus family.-
 HIV-2.It causes less aggressive disease than HIV-1.- It is restricted mainly to western Africa.
 Pathogenesis;
 • The virus attaches to the surface of CD4 (Helper) T-cells.• The virus then enters the cell and uncoats, and its RNA
is transcribed toDNA by reverse transcriptase.The virus destroys CD4 T-cells and therefore weakens cell -
mediatedimmunity.Each day:> 1010 virions are produced i.e. daily turnover of 30% of total viralburden.> 10P CD4
T-cells are destroyed i.e. 6-7% of total body DA cells
 .Mode of Transmission
 :Sexual:Man-to-manHeterosexual (most common route accounting for > 75%)
 Oral
 Parenteral:
 l:Blood (transmission risk is 90%)Injection drug users
 Occupation injury
Demographics
Pathogenesis
 Vertical:
 Vertical transmission
 occurs during pregnancy, during birth, and breastfeeding
 Vertical transmission is higher in developing countries (25-44%)than in industrialized countries (13-
25%).
 80% of vertical transmission occurs during child birth(labour)20% of vertical transmission occurs in
utero.
 Classification of HIV;
 • HIV can be broadly classified into following types depending on clinical features:
 o Primary infection Asymptomatic infection Mildly symptomatic infection Acquired immunodeficiency
syndrome (AIDS)
 Primary Infection:Primary infection is symptomatic in 70-80% of cases.
 Primary infection usually occurs 2 - 6 weeks after exposure.
 Primary infection coincides with:High plasma HIV-RNA levelsFall in CD4 count to 300 - 400 cells/mm
 ,
Clinical Features:
 Fever with rash Pharyngitis with cervical lymphadenopathy Myalgias and arthralgias Headache and mucosal
ulceration
 Asymptomatic Infection: It is category-A disease in Centers for Disease Control (CDC)Classification.
 • The patient is seropositive, but no evidence of disease.
 • The patient may have persistent generalized lymphadenopathy (PGL).•
 PGL is defined as enlarged glands at 22 extra-inguinal sites.
 • CD4 counts are normal (> 500/mm)CD4 count declines at a rate of 50 - 150 cells per year.
 Mildly Symptomatic Disease:
 • It is category-B
 disease in Centers for Disease Control (CDC) Classification
Clinical Features:
 presents with symptoms and diseases that are NOT AIDS definig illness,
 such as:• Oral hairy leukoplakiaRecurrent
 Oropharyngeal candidiasis- Recurrent vaginal candidiasis- Bacillary angiomatosis- Idiopathic thrombocytopenic
purpura Weight loss Herpes zoster Chronic diarrheaAIDS•
 It is category-C disease in Centers for Disease Control (CDC)Classification
 AIDS is defined by HIV with CD4 count < 200/mm?
 or opportunisticinfections
 or malignancy
 AIDS-defining diseases are:
 Esophageal candidiasis (not Oropharyngeal)
 • Cryptococcal meningitisCryptosporidial diarrheaCerebral toxoplasmosis
 Cytomegalovirus retinitis
 Disseminated mycobacterium avium intracellulare (MAI
 Pulmonary or extra-pulmonary TB
 Pneumocystis carinii (jirovecii) pneumonia (PCP)
 Extra-pulmonary coccidioidomycosis
 Extra-pulmonary Histoplasmosis
 Progressive multifocal leukoencephalopathy (PML)Malignancy:
 " Non-Hodgkin lymphoma
 Kaposi's sarcoma (most common)-
 Primary cerebral lymphoma.
 Invasive cervical cancer
 Diagnosis:
 • Best initial test= ELISA test.
 o Confirmatory test = Western blot
 Infected Infants : Diagnosed by PCR-RNA or viral culture
ELISA testing is unreliable because maternal HIV antibodies maybe present for up to 6 months
after delivery.
 • Viral Load:
 • PCR-RNA viral load test is used to Measure response to therapy (decreasing levels are good)
 Detect treatment failure (increasing levels are bad)Diagnose HIV in infants
Treatment:
 Indications for Treatment:
 CD4 count and Indications for Treatment:- ≥ 350 cells/mm?:
 Monitor 3 - 6 monthly
 Consider treatment if hepatitis B or C co-infected or > 55years of age< 350
cell/mm3.- 350 - 200 cells/mm?
 treat as soon as patient is ready< 200 cells/mm? = treat as soon as possible
Primary Infection is Indicator for Treatment
 Start treatment if: There is neurologic involvementCD4 count is <200 cells/mm? for
> 3 months AIDS-defining disease
 Choice of Drugs: Treatment of HIV is referred to as highly active retroviral
therapy(HAART).HAAR involves use of >3 drugs for better outcome and to
decrease resistance.
Regimen’s:
 Regimen 1:
 Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS Non-nucleoside
reverse transcriptase inhibitor (NNRTI).
 Example:Efavirenz + Tenofovir + Emtricitabine:
 Regimen 2:• Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS• Boosted
protease inhibitor (PI).
 Example:Ritonavir - boosted Atazanavir + Tenofovir + Emtricitabine
 Regimen 3:• Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS• Integrase
Inhibitor (I), which inhibits final step of pro-viral DNAintegration
 Example:Raltegravir (II) + Tenofovir + Emtricitabine
Treatment During Pregnancy;
 All pregnant women should routinely be recommended for HIV testing.
 The medications used are same as that for non-pregnant EXCEPT for Efavirenz,
which is contraindicated due its teratogenicity.
 Therefore instead of Efavirenz a protease inhibitor should be used.
 If mother is HIV positive and is already taking HAART then continue medications.
 If mother is HIV positive with CD4 < 350 and HIGH viral load and is not on HAART:
 Start treatment immediately Zidovudine + Lamivudine + Protease inhibitor
 If mother is HIV positive with CD4 ≥ 350 and LOW viral load andis not on
HAART:Treatment is still required to reduce vertical transmission.
 Anti-retrovirals between 2nd& 3rd trimester and stoppingafter birth.
 Zidovudine monotherapy (starting from 12-14 weeks)
 if viralload is low (<10,000 copies/mL) and Caesarean section is planned.
 Other Measures to Reduce Vertical Transmission:Caesarean section if CD4 is low,
viral load is high, and patient not on HAART Caesarean section is not required if
patient is on HAART and viralload is low.
 Avoid breastfeeding
 Transmission rates:<1% = for Zidovudine monotherapy + Caesarean section<1% = for HART and
planned vaginal delivery
 When viral load is <50 copies/ mL.
 Post-exposure Prophylaxis : It is required for healthcare workers following occupational exposure to
HIV.
 It is also required for non-occupation exposure (e.g. Victims of rape, sexual exposure)
 British Recommendations :
 Agents = Zidovudine + Lamivudine + Lopinavir/ Ritonavir, Duration =4 weeks
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Sexually transmitted disease (STD).pptx

  • 1. Sexually transmitted disease (STD) Made by: DR.FIDWA ARSHAD ALI UNDERSUPERVISION OF LT.COL DR M.FAROOQ
  • 2.
  • 3. Syphilis:  Def: Std caused by a spirochete Treponema pallidum  Clinical Features : based on clinical features it is divided into four main types namely:  1.Primary syphilis  2.secondary syphilis  3.Latent syphilis  4.Tertiary syphilis  5.Congenital syphilis
  • 4.
  • 5. Primary Syphilis: o Occurs 9-10 after infection o Presents as Chancre i.e painless ulcer with clean base, raised indurated borders usually in the genital areas o Draining lymph nodes may be enlarged, mobile and rubbery o Both chancre and lymph nodes are PAINLESS. o Fate: o Without treatment, the chancre will resolve within 2-6 weeks
  • 6. Penile chancre, shaft Source: Dr. John Toney, Southeast STD/HIV Prevention Training Center Penile chancre, underside of glans Source: Public Health Agency of Canada
  • 7. Secondary Syphilis:  It occurs 6 - 8 weeks after chancre  Clinical feature: It presents with low-grade fever, headache, malaise, and generalized non-tender lymphadenopathy. "Snail track ulcer" in the mouth Non- pruritic, symmetrical maculopapular rash on the soles and palms.  Fate: 1. Without treatment the rash may last for up to 12 weeks.  2. Condylomata Lata:• Flat wart-like peri-anal and mucous membrane lesions  .Highly contagious
  • 8. Palmar and plantar rash Source: Connie Celum, Walter Stamm, Seattle STD/HIV Prevention Training Center
  • 9. Latent Syphilis:  It refers to positive syphilis serology with no evidence of clinical disease.  It is divided into two phases:  Early Latent Syphilis:•  No symptoms, positive serology within 2 years of infection• Patient is sexually infectious.•  Late Latent Syphilis:  No symptoms, after 2 years of infection.  Patient is NOT sexually infectious.
  • 10. Tertiary Syphilis;  occurs between 3 - 10 years after infection.  The characteristic feature is a chronic granulomatous lesion called a"gumma".,  The classic features are:  General paresis (dementia)  Cardiovascular findings (aortic root aneurysm, aorticregurgitation)  Neurosyphilis (Tabes Dorsalis, Argyll-Robertson pupil,Meningo-vascular stroke)
  • 11.
  • 12.
  • 13. Diagnosis:  Dark-field microscopy = identifies motile spirochetes in primary &secondary syphilis.  Non-specific Tests:VDRL test (venereal diseases research laboratory)  RPR test (rapid plasma reagin)  Specific Test:  FTA-ABS test (fluorescent treponemal antibody-absorbed test)  TP-ELA test (treponemal antigen-based enzyme immunoassay test)
  • 14. Treatment:  Penicillin is the drug of choice for all the stages of syphilis.  Doxycycline is used for penicillin-allergic patients.  Pregnancy:Penicillin is the drug of choice  .Penicillin-allergic patients:-  Penicillin de-sensitization, followed by penicillin, OR Erythromycin for pregnant woman and penicillin for newborn baby (to protect baby from syphilis as erythromycin crosses placenta poorly)
  • 15.
  • 16. Gonorrhea:  It is caused by Neisseria gonorrhoeae:  is a gram-negative diplococcus.  Incubation period is 2 - 10 days.  Mode of transmission = vaginal, anal, or oral sex
  • 17. Clinical Features:  In men : It commonly involves the anterior urethra.  Urethritis with purulent urethral discharge .Dysuria; proctitis  In women:80% of women who have gonorrhea are asymptomatic.  Greenish-yellow discharge. Adnexal or pelvic pain.  Disease spectrum is as follows:  Vulva= Skene gland adenitis.  Vagina= Vaginitis  Cervix= Acute cervicitis  Uterus= Acute endometritis  Fallopian tube= Acute salpingitis
  • 18. Complications:  Acute prostatitis and epididymo-orchitis in men  Bartholin's gland abscess  Ectopic pregnancy  Disseminated Gonococcemia  Monoarticular septic arthritis  Rash - hemorrhagic, painful pustules.  Tenosynovitis  Diagnosis & Treatment:  Gram stain and culture is the Gold Standard.  NAAT of urine.  Treatment : Cefixime, OR Ceftriaxone (contraindicated during pregnancy)*
  • 19.
  • 20. chlamydia  It is caused by Chlamydia trachomatis; an obligate intracellular bacterium  Serotypes:  Serotypes A,B,C = Trachoma (follicular conjunctivitis with cornealscarring)  Serotypes L1-L3 = Lymphogranuloma venereum Lymphogranuloma venereum
  • 21. Lymphogranulora Venereum (LGM):  It is caused by chlamydia trachomatis serotypes L1, 2, 3.  Clinical Features: Painless ulcer . Ulcer is small, transient and often unnoticed.  Inguinal lymph nodes are tender, unilateral, matted, but multilocular.  Treatment: Doxycycline, OR Erythromycin
  • 22. Clinical Features:  Clinical Features;80% of women who have chlamydia are asymptomatic.  • Mucopurulent cervical discharge (classic finding)  Cervical motion tenderness.  Intermenstrual or post-coital bleeding  Complications:Reiter's syndrome  Fitz-Hugh-Curtis Syndromefibrosis  .Infertility & ectopic pregnancy = from PID.  urethritis, conjunctivitis, arthritis  peri-hepatic inflammation
  • 23. Diagnosis:  Diagnosis is usually clinical.  Gram stain of discharge may show neutrophils, but no bacteria(intracellular)  Culture is the Gold Standard,  Nucleic acid amplification test (NAAT) of urine for rapid diagnosis.- Treatment: Azithromycin 1gm orally as a single dose,  OR• Doxycycline orally for 7 days
  • 24. Human Papilloma Virus (HPV):  HPV has over 90 genotypes:  HPV-6, 11, 16, and 18 most commonly infect the genital tract through sexual transmission  Clinical Features:  Genotypes 6 and 11:  Cause ano-genital warts, which may be single, multiple, exophytic or flat.  Buschke -Lewenstein tumor :refers to a giant condyloma with local tissue destruction  Genotypes 16 and 18:  Cause dysplastic conditions and cancers of genital tract Can affect penis, vulva, vagina, cervix, perineum, or anus.
  • 26. Treatment:  Podophyllotoxin = for home treatment of external warts (contraindicatedin pregnancy)  Imiquimod cream = for home treatment of external warts (contraindicatedin pregnancy)  Cryotherapy = for treatment of internal and external warts•  Hyfrecation (electrofulgration that causes charring) = for external &internal warts  Surgical removal  Prevention:- Bivalent vaccine protection against HPV-16, 18  Quadrivalent vaccine protection against HPV-6, 11  Current recommendation are:  HPV should be administered prior to the onset of sexualactivity.  Typically at age 11 - 13, in a course of 3 injections
  • 27. Sexually Transmitted genital leisions:  Granuloma Inguinale:• Also known as "Donovanosis".  It is caused by Klebsiella granulomatis.  Clinical Features: Beefy-red ulcer; hypertrophic granulomatous lesions Pain less  Diagnosis = Biopsy (Donovan bodies), which are intracellular bipolar staining bodies.  Treatment: Azithromycin, OR Doxycycline Granuloma Inguinale Donovanosis
  • 28. Chancroid:  Chancroid: It is caused by Hemophilus ducreyi; a gram-negative rod.  Clinical Features:  Painful ulcers (mnemonic: you cry with ducreyi):Ulcers are irregular, deep, and well- demarcated with ragged undermined edge.  Inguinal lymph nodes are tender, unilateral, matted and unilocular.  Treatment: Single dose of oral azithromycin.  OR Single dose of IM ceftriaxone.- Lymphogranulora Venereum (LGM):• It is caused by chlamydia trachomatis serotypes L1, 2, 3.OClinical Features:Painless ulcer.Ulcer is small, transient and often unnoticed.Inguinal lymph nodes are tender, unilateral, matted, butmultilocular.o Treatment:Doxycycline, ORErythromycin
  • 29. HIV  Virology:•  HIV stands for human immunodeficiency virus.•  AIDS stands for acquired immunodeficiency syndrome.  • AIDS is caused by:• HIV-1.HIV is a single-stranded RNA retrovirus.  HIV belongs to Lentivirus group of retrovirus family.-  HIV-2.It causes less aggressive disease than HIV-1.- It is restricted mainly to western Africa.  Pathogenesis;  • The virus attaches to the surface of CD4 (Helper) T-cells.• The virus then enters the cell and uncoats, and its RNA is transcribed toDNA by reverse transcriptase.The virus destroys CD4 T-cells and therefore weakens cell - mediatedimmunity.Each day:> 1010 virions are produced i.e. daily turnover of 30% of total viralburden.> 10P CD4 T-cells are destroyed i.e. 6-7% of total body DA cells  .Mode of Transmission  :Sexual:Man-to-manHeterosexual (most common route accounting for > 75%)  Oral  Parenteral:  l:Blood (transmission risk is 90%)Injection drug users  Occupation injury
  • 31.
  • 33.  Vertical:  Vertical transmission  occurs during pregnancy, during birth, and breastfeeding  Vertical transmission is higher in developing countries (25-44%)than in industrialized countries (13- 25%).  80% of vertical transmission occurs during child birth(labour)20% of vertical transmission occurs in utero.  Classification of HIV;  • HIV can be broadly classified into following types depending on clinical features:  o Primary infection Asymptomatic infection Mildly symptomatic infection Acquired immunodeficiency syndrome (AIDS)  Primary Infection:Primary infection is symptomatic in 70-80% of cases.  Primary infection usually occurs 2 - 6 weeks after exposure.  Primary infection coincides with:High plasma HIV-RNA levelsFall in CD4 count to 300 - 400 cells/mm  ,
  • 34.
  • 35. Clinical Features:  Fever with rash Pharyngitis with cervical lymphadenopathy Myalgias and arthralgias Headache and mucosal ulceration  Asymptomatic Infection: It is category-A disease in Centers for Disease Control (CDC)Classification.  • The patient is seropositive, but no evidence of disease.  • The patient may have persistent generalized lymphadenopathy (PGL).•  PGL is defined as enlarged glands at 22 extra-inguinal sites.  • CD4 counts are normal (> 500/mm)CD4 count declines at a rate of 50 - 150 cells per year.  Mildly Symptomatic Disease:  • It is category-B  disease in Centers for Disease Control (CDC) Classification
  • 36. Clinical Features:  presents with symptoms and diseases that are NOT AIDS definig illness,  such as:• Oral hairy leukoplakiaRecurrent  Oropharyngeal candidiasis- Recurrent vaginal candidiasis- Bacillary angiomatosis- Idiopathic thrombocytopenic purpura Weight loss Herpes zoster Chronic diarrheaAIDS•  It is category-C disease in Centers for Disease Control (CDC)Classification  AIDS is defined by HIV with CD4 count < 200/mm?  or opportunisticinfections  or malignancy
  • 37.  AIDS-defining diseases are:  Esophageal candidiasis (not Oropharyngeal)  • Cryptococcal meningitisCryptosporidial diarrheaCerebral toxoplasmosis  Cytomegalovirus retinitis  Disseminated mycobacterium avium intracellulare (MAI  Pulmonary or extra-pulmonary TB  Pneumocystis carinii (jirovecii) pneumonia (PCP)  Extra-pulmonary coccidioidomycosis  Extra-pulmonary Histoplasmosis  Progressive multifocal leukoencephalopathy (PML)Malignancy:  " Non-Hodgkin lymphoma  Kaposi's sarcoma (most common)-  Primary cerebral lymphoma.  Invasive cervical cancer
  • 38.  Diagnosis:  • Best initial test= ELISA test.  o Confirmatory test = Western blot  Infected Infants : Diagnosed by PCR-RNA or viral culture ELISA testing is unreliable because maternal HIV antibodies maybe present for up to 6 months after delivery.  • Viral Load:  • PCR-RNA viral load test is used to Measure response to therapy (decreasing levels are good)  Detect treatment failure (increasing levels are bad)Diagnose HIV in infants
  • 39. Treatment:  Indications for Treatment:  CD4 count and Indications for Treatment:- ≥ 350 cells/mm?:  Monitor 3 - 6 monthly  Consider treatment if hepatitis B or C co-infected or > 55years of age< 350 cell/mm3.- 350 - 200 cells/mm?  treat as soon as patient is ready< 200 cells/mm? = treat as soon as possible Primary Infection is Indicator for Treatment  Start treatment if: There is neurologic involvementCD4 count is <200 cells/mm? for > 3 months AIDS-defining disease  Choice of Drugs: Treatment of HIV is referred to as highly active retroviral therapy(HAART).HAAR involves use of >3 drugs for better outcome and to decrease resistance.
  • 40. Regimen’s:  Regimen 1:  Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS Non-nucleoside reverse transcriptase inhibitor (NNRTI).  Example:Efavirenz + Tenofovir + Emtricitabine:  Regimen 2:• Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS• Boosted protease inhibitor (PI).  Example:Ritonavir - boosted Atazanavir + Tenofovir + Emtricitabine  Regimen 3:• Two nucleoside reverse transcriptase inhibitors (NRTI), PLUS• Integrase Inhibitor (I), which inhibits final step of pro-viral DNAintegration  Example:Raltegravir (II) + Tenofovir + Emtricitabine
  • 41. Treatment During Pregnancy;  All pregnant women should routinely be recommended for HIV testing.  The medications used are same as that for non-pregnant EXCEPT for Efavirenz, which is contraindicated due its teratogenicity.  Therefore instead of Efavirenz a protease inhibitor should be used.  If mother is HIV positive and is already taking HAART then continue medications.  If mother is HIV positive with CD4 < 350 and HIGH viral load and is not on HAART:  Start treatment immediately Zidovudine + Lamivudine + Protease inhibitor  If mother is HIV positive with CD4 ≥ 350 and LOW viral load andis not on HAART:Treatment is still required to reduce vertical transmission.
  • 42.  Anti-retrovirals between 2nd& 3rd trimester and stoppingafter birth.  Zidovudine monotherapy (starting from 12-14 weeks)  if viralload is low (<10,000 copies/mL) and Caesarean section is planned.  Other Measures to Reduce Vertical Transmission:Caesarean section if CD4 is low, viral load is high, and patient not on HAART Caesarean section is not required if patient is on HAART and viralload is low.
  • 43.  Avoid breastfeeding  Transmission rates:<1% = for Zidovudine monotherapy + Caesarean section<1% = for HART and planned vaginal delivery  When viral load is <50 copies/ mL.  Post-exposure Prophylaxis : It is required for healthcare workers following occupational exposure to HIV.  It is also required for non-occupation exposure (e.g. Victims of rape, sexual exposure)  British Recommendations :  Agents = Zidovudine + Lamivudine + Lopinavir/ Ritonavir, Duration =4 weeks