which turns causes redness and swelling to the area with a moderate amount of serous exudate. this response is generally limited to the first 24 hours after wounding
inflammatoryresponse
epidermal cells lining the epidermal appendages, allowing for a quick resurfacing , epidermal cells migrate across moist surface
epithelialproliferation and mitigation
the cells slowly reestablish normal thickness and appear as dry pink tissue
reestablish of epidermaltissue
involves series of physiological events designed to control blood loss, establish bacterial control and seal the defect that occurs when there is an injury. injured blood vessel constrict and platelets gather to stop bleeding
hemostasis
clots form a fibrin matrix that later provides a frame work for cellular repair
damage tissue and mast cells secrete histamine, resulting in vasodilation of surrounding capillaries and movements and movement of migration of serum and WBCs into the damage tissues
Inflammatory phase
primary acting WBCs in full-thickness wound repair
nuetrophil
that clean a wound of a bacteria, dead cells and debris by phagocytosis
macrphages
with the appearance of new blood vessels as reconstruction progresses, the proliferative and new tissue formation phase begins 3-4 days after injury and can last as long 2 weeks
Proliferation and New Tissue Formation Phase
provides strength and structural integrity to the wound
collagen
fibroblast is present in this phase
Proliferation and New Tissue Formation Phase
begins after several weeks after the injury and continues for more than a year. The collagen scars continues to reorganize and gain strength after several months
remodeling and maturation
occur unless large blood vessels are involved or a patient has poor clotting function
hemorrhage
develops when microorganism invade the wound tissues
wound infections
some contaminated or traumatic wounds shows signs of infection early, within 2 to 3 days
when a surgical incision fails to heal properly, layers of skin and tissue seperate
dehiscence
dehiscence
partial or total separation of wound layers
when does dehiscence occurs?
5-12 days after suturing at a time when wound repair is at its peak
is another risk because of constant healing qualities of adipose tissues
obesity
protrusion of visceral organ through wound opening . this condition is an emergency that requires surgical repairs
evisceration
deficiencies in any of the nutrients results impaired or delayed healing
provides the energy source need for the cellular activities
calories
is necessary of synthesis of collagen
vitamin c
reduces the negatives effects of steroids in wound healing
vitamin a
are biochemical indicators of malnutrition
serum protein
oxygen fuels the cellular function essential to healing process: therefore the ability to perfuse the tissues with adequate amount of of oxygenatedblood is is critical to wound healing
tissue perfusion
prolongs the inflammatory phase, delays collagen synthesis prevents epithelialization and increases production of pro-inflammatory cytokines