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bi240 healing
grcc bi240 healing
Question | Answer |
---|---|
fibrosis | occur due to complications or chronic inflammation. |
healing by first intention | wound cleaned, edges quickly approximated and sutured = less scaring |
Healing by second intention | Wounds heal from inside out; there is a large break in tissue, jagged edges, more inflammation & longer healing time. |
healing process has how many phases? | 4: inflammatory, migratory, proliferative & maturation |
Inflammatory phase | blood clot forms and seals area where proliferation happens, fibroblasts form and phagocytosis. |
Migratory phase | Epitheleal cells continue to migrate and proliferate, granulation tissue |
in migratory phase granulation tissue forms | beneath the the scab. |
Proud flesh | granulation tissue. |
Proliferative phase | Epi increases in thickness, collagen fibers in regular patterns, fibroblasts supplied, debris/fibrin/leukocytes disappear |
maturation phase (remodeling) | Scab sloughs off, epi normal, collagen more organized, fibroblasts disappear, vascular restored |
When does scar fade? | When capillaries decrease; red to white |
Complications of scar tissue | puckering of skin, keloid formation, adhesion |
complications of a scar | it can pucker causing a distortion |
complications of adhesion | can cause obstruction (i.e. bowel twisting) |
co-morbility | delayed healing due to other health problems such as DM or cancer. |
Complications of healing | loss of funcion |
What is the worst complication of healing? | contractures/obstructions |
Hypertrophic scar formation | keloid |
Common contracture | scar tissue that forms where you can't bend or move extremity. |