Lýta Flashcards

1
Q

Hyperbaric oxygen. Áhrif á sár?

A

Eykur tissue oxygen levels.

Aukin fibroblast proliferation og collagen formation. Aukin microbial killing og neoanginogenesis.

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2
Q

VAC meðferð. Hvað? Áhrif á sár?

A

Vacuum Assisted Closure
Continuous or intermittent negative pressure á sár í gegnum non-adherent foam dressing í lokuðu kerfi.
Dregur úr bakteríumagni og interstitial fluid með aukinni angiogenesis og myndun granulation tissue.

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3
Q

VAC therapy. Áhrif fyrir grafta?

A

Breytir non-graftable bed into one that will accept a graft.

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4
Q

Keloid

A

Of mikil collagen framleiðsla -> red, lumpy, hypertrophic scar. = excessive scarring
Ef þetta nær í surrounding tissues = a true keloid

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5
Q

Skin grafts skiptast í?

A

Split-thickness graft = epidermis og superficial dermis

Full-thickness graft = entire thickness of skin

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6
Q

Orsakir graft loss:

A
heamatoma undir graft
infection
inadequate immobilisation
positioning of the graft
unsuitable bed
bare cartilage or tendon
technical error (upside down t.d.)
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7
Q

hvað gera fenestrations í graft?

A

draga úr líkum á heamatoma undir graft

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8
Q

Split-thickness grafts. Þykkt? og fleira

A

150-300µm þykkt
Tökustaður grær á 2 vikum
- oft alteration á pigmentation, stundum hypertrophic scarring
Þarf að immobilisera vel

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9
Q

Hvaða dressing seturu á donor stað?

A

Alginate mesh

left undisturbed for 10 days

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10
Q

gallar á split-thickness grafting?

A

Oft mikið contracture (eykst með þynnri gæjum)
getur sést mikið scarring
-> eru bara hole fillers fyrir stór svæði

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11
Q

full-thickness grafts

A

eru minna reliable í take-i því stærri flötur sem þarf næringu
minna scarring
sérstaklega suitable á face

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12
Q

Hvaðan eru önnur gröft sótt?

  • bein
  • cartilage
  • nerves (bridging)
  • tendon
A
  • bein eru sótt í ilium eða rib
  • cartilage sótt í ear concha eða rib
  • cutaneous nerves t.d. sural nerve
  • palmaris longus eða plantaris tendons
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