Special Populations Management

Special Populations Management

Special Populations Management

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STIs in Pregnancy - Precious Cargo Care

Protecting mother and child is paramount. Early STI detection and management prevent severe maternal/neonatal complications. Use pregnancy-safe drugs.

  • Screening: Universal for Syphilis, HIV, HBsAg at 1st antenatal visit. Others based on risk.
  • Syphilis:
    • Screen: VDRL/RPR, confirm with treponemal test.
    • Treat: Benzathine Penicillin G (e.g., 2.4 MU IM for early syphilis).
    • Prevents: Congenital syphilis (rash, snuffles, bone changes, Hutchinson's teeth).
  • HIV:
    • Screen all. Mother: ART. Infant: ARV prophylaxis.
    • ⭐ > HIV vertical transmission risk drops to <1% with timely ART and optimal perinatal care.
  • Hepatitis B (HBV):
    • Screen: HBsAg.
    • Newborn (HBsAg+ mother): HBIG + HBV vaccine within 12 hours.
  • Gonorrhea/Chlamydia:
    • Screen high-risk. Treat (e.g., Ceftriaxone + Azithromycin; verify guidelines).
    • Prevent: Ophthalmia neonatorum.
  • Herpes Simplex Virus (HSV):
    • Active genital lesions at delivery: Caesarean section.
    • Acyclovir prophylaxis from 36 weeks for recurrent HSV.

HIV & STI Co-infections - Immune System Under Siege

  • Bidirectional Harm: HIV & STIs create a vicious cycle. STIs ↑ HIV acquisition & transmission risk. HIV impairs immunity, worsening STI severity & treatment response.
  • Screening is Key: Regular, comprehensive STI screening for all HIV+ individuals (syphilis, GC, chlamydia, HSV, HPV).
  • Management Nuances:
    • Atypical presentations common.
    • ↑ Risk of complications (e.g., neurosyphilis).
    • Treatment failures more frequent.
    • Consider IRIS unmasking STIs.
  • Prevention: Consistent condom use, ARV adherence, regular STI checks.

⭐ HIV infection significantly increases the risk of human papillomavirus (HPV) persistence and progression to cervical or anal cancer.

Adolescents & STIs - Youth Guard Duty

Adolescents (10-19 yrs) are disproportionately affected by STIs. Unique approach needed for confidentiality, consent, screening & health education.

  • Core Principles:
    • Confidentiality: Paramount; laws often allow minors to consent for STI services.
    • Screening: Annual Chlamydia/Gonorrhea (CT/NG) for sexually active females ≤25 yrs. HIV screening for all aged 13-64 at least once. Screen others based on risk.
    • Prevention:
      • HPV vaccination (target ages 11-12, catch-up up to 26 or 45 based on risk).
      • Consistent condom use.
      • Behavioral counseling.
    • Management: Age-appropriate, consider psychosocial impact. Partner notification is key.

⭐ Expedited Partner Therapy (EPT) is recommended for treating partners of patients with chlamydia or gonorrhea without a prior medical evaluation of the partner, especially in adolescents, to prevent reinfection and spread.

  • Challenges: Asymptomatic infections, stigma, access to care, incomplete partner treatment. 📌 Remember the "5 Ps" of sexual history: Partners, Practices, Protection, Past STIs, Pregnancy prevention/plans.

MSM & VSA Care - Tailored STI Tactics

  • MSM (Men who have Sex with Men):
    • ↑ Risk: HIV, Syphilis, GC/CT (pharyngeal/rectal/urethral), LGV, HBV, HCV, HPV.
    • Screening: Annual HIV Ag/Ab, Syphilis serology, HBsAg. Site-specific GC/CT NAAT. Anal Pap (HIV+).
    • Vaccinate: Hepatitis A, Hepatitis B, HPV.
    • Consider PrEP for HIV.
  • VSA (Victims of Sexual Assault):
    • Immediate Care: Psych support, EC, STI prophylaxis.
    • Empirical STI Prophylaxis:
      • GC: Ceftriaxone 500mg IM (or 1g if >150kg).
      • CT: Doxycycline 100mg BD x7d OR Azithromycin 1g single dose.
      • Trichomoniasis (TV): Metronidazole 2g single dose.
    • HIV PEP: Start <72h (e.g., TDF+FTC+DTG).
    • Hepatitis B: Vaccination +/- HBIG.
    • Follow-up: STI/HIV tests (baseline, 2wk, 3mo, 6mo).

⭐ HIV PEP for VSA: Initiate ideally <2h, up to 72h post-exposure.

High‑Yield Points - ⚡ Biggest Takeaways

  • Syphilis in pregnancy: Penicillin G is crucial (desensitize if allergic); watch for Jarisch-Herxheimer reaction.
  • Gonorrhea/Chlamydia in pregnancy: Treat with Ceftriaxone + Azithromycin; avoid tetracyclines.
  • HSV in pregnancy: Use Acyclovir suppression (late term); C-section for active lesions at delivery.
  • HIV & Syphilis: Higher neurosyphilis risk; adjust Penicillin G regimen.
  • HIV & HPV: Increased anogenital cancer risk (cervical, anal); screen vigilantly.
  • STIs in children: Always consider sexual abuse; ensure medico-legal compliance.
  • Congenital Syphilis: Key late stigmata: Hutchinson's teeth, saddle nose, saber shins.
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Practice Questions: Special Populations Management

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A 28-year-old woman in her first trimester of pregnancy is diagnosed with syphilis (VDRL 1:32, TPHA positive). She reports penicillin allergy with previous anaphylaxis. What is the most appropriate management?

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Flashcards: Special Populations Management

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_____ syphilis can present with aortitis, particularly of the ascending thoracic aorta

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_____ syphilis can present with aortitis, particularly of the ascending thoracic aorta

Tertiary

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