Global Health Perspectives in Dermatology

Global Health Perspectives in Dermatology - Skin Deep Worldwide

• Skin diseases affect > 900 million people globally, a major public health issue, especially in tropical, resource-limited settings (RLS).
• High burden in RLS due to poverty, malnutrition, poor sanitation, and limited healthcare access.
• Common tropical dermatoses:
  • Infections: Leprosy, Scabies, Cutaneous Leishmaniasis, Lymphatic Filariasis, Mycetoma, Yaws.
  • Non-infectious: Atopic dermatitis (modified by environment), Pellagra, Podoconiosis.
• Impact:
  • Significant morbidity, disability (e.g., lymphedema).
  • Psychosocial consequences: stigma, social exclusion, reduced Quality of Life (QoL).
  • Economic strain on individuals and health systems.
• Key Strategies:
  • Integrating skin health into Primary Healthcare (PHC).
  • Training community health workers.
  • Utilizing teledermatology for remote areas.
  • Mass Drug Administration (MDA) for endemic diseases.

⭐ India bears the highest burden of leprosy globally, accounting for over half of new cases. Early detection and Multi-Drug Therapy (MDT) are pivotal.

• Challenges in RLS: 📌 MAPS - Manpower shortage, Access barriers, Poverty & hygiene, Stigma.

Global Health Perspectives in Dermatology - Tropical Skin Invaders

• Leprosy (Hansen's Disease)
  • M. leprae. Anaesthetic hypopigmented patches, thickened peripheral nerves, nodules/plaques. TT↔LL spectrum.
  • Dx: Slit-skin smear (AFB), biopsy. Tx: MDT (Rifampicin, Dapsone, Clofazimine).

  ⭐ Paucibacillary MDT: 6 months; Multibacillary MDT: 12 months.

• Cutaneous Leishmaniasis (CL)
  • Leishmania protozoa (sandfly vector). Chronic non-healing ulcers or crusted papules/nodules on exposed areas.
  • Dx: Smear/biopsy (LD bodies), PCR. Tx: Pentavalent antimonials (Na Stibogluconate), Amphotericin B.
• Scabies
  • Sarcoptes scabiei mite. Intense nocturnal pruritus. Burrows, papules, vesicles (interdigital, wrists, axillae).
  • Tx: Permethrin 5% cream, oral Ivermectin. Treat contacts. Crusted (Norwegian) scabies in immunocompromised.
• Lymphatic Filariasis (Elephantiasis)
  • Filarial worms (W. bancrofti, B. malayi; mosquito). Chronic lymphedema, hydrocele. Acute adenolymphangitis (ADL).
  • Dx: Night blood smear (microfilariae), antigen tests. Tx: Diethylcarbamazine (DEC), morbidity management.
• Mycetoma (Madura Foot)
  • Fungi (eumycetoma) or Actinomycetes (actinomycetoma). Triad: painless swelling, draining sinuses, grains (color varies).
  • Dx: Grains microscopy/culture, imaging. Tx: Prolonged, agent-specific (antifungals/antibiotics), surgery.

Global Health Perspectives in Dermatology - Global Skin Shield

• Global Burden: Skin diseases significantly impact Low- and Middle-Income Countries (LMICs), causing morbidity, disability, and stigma. Early, accessible care is vital.
• WHO Initiatives: Focus on skin NTDs (e.g., Leprosy, Yaws, Scabies, LF) via Global NTD Roadmap 2021-2030. Aims to control, eliminate, or eradicate.
• National Efforts (India):
  • National Leprosy Eradication Programme (NLEP): Strives for leprosy elimination (Grade 2 disability <1 case/million).
  • National Filaria Control Programme (NFCP): Targets Lymphatic Filariasis elimination through Mass Drug Administration (MDA).
• Core Challenges:
  • Shortage of dermatologists, especially in rural areas; limited diagnostic tools.
  • Poor access to affordable medicines; pervasive social stigma delaying treatment.
• Key Strategies:
  • Integrating dermatology into Primary Health Care (PHC).
  • Task-shifting to trained health workers.
  • Utilizing teledermatology for remote consultations.
  • Community engagement and health education to combat stigma.

⭐ > The WHO NTD Roadmap 2021-2030 targets 100% access to basic WASH services in areas endemic for skin NTDs.

High‑Yield Points - ⚡ Biggest Takeaways

• Skin NTDs (Leprosy, Leishmaniasis, LF) are major global health burdens, requiring integrated control.
• Leprosy: Cardinal signs for diagnosis; MDT prevents disability. WHO focus.
• Leishmaniasis: Diverse skin lesions; vector control is vital. Endemic regions.
• Lymphatic Filariasis: Causes lymphedema; MDA is key for elimination.
• Scabies & deep fungal infections: Prevalent in tropics; demand community-based approaches.
• Access to care: Critical challenge; teledermatology offers potential solutions.
• Climate change: Impacts vector-borne skin diseases and UV-related conditions.