Wounds Flashcards
Classification of Surgical Wounds
‘Clean’
Aseptic conditions, closed by sutures
Classification of Surgical Wounds
‘Clean- contaminated’
Aseptic conditions- mild contamination e.g entering into alimentary, urogenital, respiratory tract.
Classification of Surgical Wounds
‘Contaminated’
Fresh traumatic wound or surgical wound with break in aseptic technique
Classification of Surgical Wounds
‘Dirty’
A traumatic wound over 6 hours old.
Incised wound
Usually caused by sharp cutting object
Laceration
Tear (dog fight RTA)
Avulsed
skin torn away from body- flap
Abrasion
graze
3 phases of wound healing
Inflammation
Proliferation/granulation
Remodelling/maturation
Roles of inflammatory exudate
rich in protein and RBCs
Dilutes irritants/toxins
Delivers fibrinogen/antibodies/nutrients/O2.
What do we need to consider when assessing a
wound?
Severity of injury?
open or closed wound?
Tissue involved?
Age of wound?
Healing by primary (first) intention
Suturing.
Healing by Secondary Intention
Significant tissue loss, healing by granulation.
Delayed primary healing
High infection risk- delayed closure.
What does granulation tissue contain
Macrophages, fibroblasts, connective tissue and blood vessels.
Wound Factors Affecting Healing
- Blood supply
- Dehydration of wound
- Excessive exudate
- Foreign body
- Necrosis
- Recurring trauma
- Low temperature
- Seroma formation
Systemic diseases which effect wound healing
- Malnutrition
- Haematological disease
- Cardiac disease
- Respiratory disease
- Renal/hepatic disease
- Chronic infection
- Certain drugs
