Eczema.txt

Card Set Information

Author:
kavinashah
ID:
84520
Filename:
Eczema.txt
Updated:
2011-05-08 13:55:05
Tags:
eczema
Folders:

Description:
eczema
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user kavinashah on FreezingBlue Flashcards. What would you like to do?


  1. what is eczema?
    an inflammatory dermatosis
  2. what are the 3 main features that characterise eczema?
    • erythema
    • scaling
    • itching
  3. what are the 9 types of eczema?
    • atopic: most common, genetic, asthma & hayfever
    • contact allergic
    • contact irritant
    • pompholyx: blistering hands and feet (stress)
    • nummular/discoid
    • seborrhoeic
    • lichen simplex chronicus
    • varicose
    • erythroderma
  4. what is seborrheic eczema? who and where?
    • babies - cradle
    • t zones, nasolabial folds, groin
  5. what is atopy?
    predisposition to develop asthma, allergic rhinitis and atopic eczema
  6. what are the blood signs of atopy?
    • increased IgE response
    • eosinophilia
  7. how is atopy diagnosed?
    • don't need to do blood tests
    • clinical diagnosis
  8. who is atopic eczema common in?
    children
  9. what % of atopic eczema have FHpositive?
    70%
  10. where does eczema affect on children?
    • symmetrical
    • face
    • flexures
  11. what are the main exacerbating factors for atopic dermatitis?
    • topical irritants: detergents, soap (as people with eczema don't have same barrier function)
    • secondary infection: bacterial (staph-impetigo), eczema herpeticum, molluscum
    • (house dust mite and food allergies)
  12. what is the prognosis of atopic dermatitis?
    • 50% clear by 3 years
    • 66% clear by 6 years
    • 90% clear by 20 years
  13. how would you describe eczema herpeticum?
    • erosions
    • multiple
    • monomorphic
    • erythematous
    • 2 mm
  14. what can happen to skin if keep itching?
    • linear excoriations
    • lichenification: generalised thickening of skin, becomes rough and tough, can see skin markings
  15. what are the 5 main aspects to treatment of atopic dermatitis?
    • 1. avoid provoking factors eg soap
    • 2. reduce dryness: bath oils, soap substitutes, emollients
    • 3. topical corticosteroids: for active inflammation
    • 4. anti-histamines (make sleepy) /bandaging (stop scratching)
    • 5. Rx secondary infections
  16. which is the strongest steroid cream for eczema?
    dermovate
  17. what are the 3 SE from steroid creams?
    • 1. potential systemic absorption
    • 2. skin atrophy (prominence of bv, skin fragile)
    • 3. acne/perioral dermatitis
  18. if first line Rx don't work for atopic dermatitis, then what are next line Rx?
    • topical tacrolimus: calcineurin inhibitor, immune modulator, use if too many SE of steroids or need too high dose of steroids
    • phototherapy: PUVA or UVB (immune suppressant)
    • systemic therapy: systemic steroids, azathioprine, cyclosporin A
  19. what are the main SE of ciclosporin
    • BP
    • kidney
    • immune suppress - so cancer risk
  20. what is contact dermatitis?
    • inflammation due to interaction of external agent and the skin
    • usually well demarcated/confined to area of contact
  21. what are the 2 types of contact dermatitis?
    • non-immunological = IRRITANT (80%)
    • immunological = ALLERGIC (20%)
  22. who gets irritant contact dermatitis?
    • new nurse or new mum
    • the irritant leads to inflammation when applied to the skin or most normal people
  23. who gets allergic contact dermatitis?
    people with type 4 or delayed cell mediated hypersensitivity
  24. give an eg of an acute and a chronic allergic contact dermatitis?
    • acute: phytodermatosis
    • chronic: ie nickel, fragrances, hair dye
  25. what reasons would make you suspect contact dermatitis?
    • acute/chronic eczema not responding/aggravated by Rx
    • site
    • work related - nurse(latex gloves), hairdresser hair dye
  26. how do you make the diagnosis of allergic contact dermatitis?
    • clinical features
    • history of allergen exposure
    • patch testing
  27. what is the Rx for allergic contact dermatitis?
    allergen avoidance
  28. what is pompholyx eczema?
    • EPISODIC
    • vesiculobullous disorder
  29. where does pomphloyx eczema occur?
    get tiny blisters on fingers > soles
  30. what is the Rx of pompholyx eczema?
    • emollients
    • potent topical steroids
  31. describe the vesicles of pomphloyx eczema?
    • small
    • firm
    • itchy
    • may be painful
  32. what are the lesions of nummular/discoid eczema like?
    • coin shaped lesions
    • may be vesicular and colonised with staph aureus
  33. where does nummular/discoid eczema occur?
    on legs
  34. what is Rx of num/discoid eczema?
    • often difficult to Rx
    • potent topical steroids
    • +/- occlusion
  35. who does seborrheic eczema affect?
    • infants 2-10 weeks
    • adults: puberty
  36. where in infants does seb eczema come?
    • cradle cap
    • 'nappy rash'
    • intertriginous areas - where 2 surfaces come together eg groin, neck fold, armpits
  37. where in adults does seb eczema affect?
    • dandruff
    • medial eyebrows
    • nasolabial folds
    • chest
    • intertriginous areas
  38. describe the rash of seborrheic eczema?
    • greasy
    • erythemaous papules
  39. what is the Rx of seborrheic eczema?
    • anti-fungal shampoo
    • topical steroids + scalp application
    • oral ketoconazole/itraconazole
  40. what is erythroderma?
    when >90% of the body is affected by erythema and scaling
  41. what are the 4 causes of erythroderma to consider?
    • eczema
    • psoriasis
    • drug allergy
    • lymphoma
  42. what is the Rx of erythroderma?
    • admit
    • bed rest
    • fluid balance
    • emollients
    • topical steroids
    • treat secondary infection
    • treat underlying causes if known
  43. what is differential diganosis of eczema?
    • inflammation: seborrheic dermatitis, irritant dermatitis
    • infection: candida, strep/staph, tinea cruris

What would you like to do?

Home > Flashcards > Print Preview