Inflammation, Wounds, and Pressure Ulcers part 4 Flashcards Preview

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Flashcards in Inflammation, Wounds, and Pressure Ulcers part 4 Deck (11)
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1

Wound Healing Primary Intention:
When does primary intention healing take place? And what are the edges closed by?

-when wound margins are neatly approximated
-closed by stitches, staples, skin glue
-EX: surgical incision

2

Wound Healing Primary Intention:
What are the 3 phases?

initial
granulation
maturation

3

Wound Healing Primary Intention:

Approximation of incision edges. Migration of epithelial cells. Clot serving as meshwork for starting capillary growth

Initial (inflammatory) 3 to 5 days

4

Wound Healing Primary Intention:

Migration of fibroblasts. Secretion of collagen. Abundance of capillary buds. Wound fragile

granulation 5 days to 4 weeks

5

Wound Healing Primary Intention:

Remodeling of collagen. Strengthening of scar

Maturation 7 days to several months

6

Wound Healing: Secondary Intention
What are some examples and edge types?

-EX: burns, major trauma, pressure injury
-Wounds that occur from trauma, injury, and infection have large amounts of exudate and wide, irregular wound margins with extensive tissue loss.
-large amount of tissue loss, edges may not be approximated

7

edges not approximated

Wound Healing: Secondary intention

8

More cellular debris, cells, and exudate
Debris removed from wound
Greater gaping wound edges larger scar
Granulation--> edges inward and from the bottom upward

Wound Healing: Secondary Intention

9

Delayed closure due to infection

Wound healing: tertiary intention

10

When does a tertiary intention occur?

-contaminated wound is left open and sutured closed after the infection is controlled
-primary wound becomes infected, is opened, allowed to granulate, and then sutured.

11

What type of scar results from tertiary intention

Tertiary intention usually results in a larger and deeper scar than primary or secondary intention.