Commentary :
In simple terms wound is break in the continuity of tissue caused by any trauma
or injury.
There are many types of wounds like; puncture wound, abrasions, lacerated etc. Healings
is the response of body to the trauma or injury for restoring the damage caused.
This healing involves two main processes Regeneration:
In this process the total formation or regeneration of parenchymal cells occurs
which results in restoration of the tissue. Repair:
In this process the scar is usually formed. It can be broken down into
further In this phase fibroblasts migrate
in the wound and release collagen type III, this process of angiogenesis
continues for about 3 weeks and wound strengthens in this phase. This phase is characterized by
the formation of granulation tissue and endothelial cells. It is the final phase which
starts from 3rd week and continues to 12 months approximately. The tensile
strength increases up to 80% of normal tissue. The conversion of granulation
tissue to fibrous connective tissue. Maturation
of the epithelial layer is followed by formation of the epithelial seal. The inflammatory and
proliferative phases are similar to those for soft tissue. The maturation phase
differs markedly from that for soft tissues because of the tissue involved. A
major difference lies in role of Osteoclast that is basic organizational unit
to clear necrotic
bone. Understanding of wound healing is as important as
knowing the pathogenesis of disease, because satisfactory wound healing is the
ultimate goal of treatment. If we are able to understand the mechanism of
periapical wound healing, we can design treatment approaches that maximize
favorable conditions for wound
healing to occur. 1. Indu Khurana and Arushi. Anatomy
and Physiology for nurses and Allied Health Sciences, CBS Publication, New
Delhi, India 84-85. Mushtaq B, P.G. psychiatry
Nursing scholars, SKIMS Nursing College, Srinagar, India, Tel: +91-7006908561,
E-mail:
bushra.mushtaq77@gmail.com Mushtaq B. Wound Healing
(2018) Nursing
Health Care 3: 41 Wound, Healing
Wound Healing
Full-Text
Wound
Healing
Phases
of Wound Healing
Inflammatory
Phase
Clot formation:This begins with the contraction
of blood vessels, the permeability of the vessels get increased by which the
exudates rich in proteins enter the site of the wound there by forming a platelet
plug. All the clotting mechanisms get activated. All these events stabilize
hemostasis and the process of wound
decontamination gets started by which coagulum gets formed.
Early
inflammation: In this process there is production of
special bodies called polumorphonuclear
neutrophils (PMNs), these increase in count at about 24 to 48 hours of
injury and they help in stabilizing the clot. PMNs help in wound decontamination
by phagocytosis.
Late
inflammation: This step is characterized by the
presence of macrophages; these decontaminate the wound by phagocytosis
and digestion of tissue debris.Poliferatory
phase
Granulation
tissue: It is a fragile structure which is composed
of an extracellular matrix of fibrin, fibronectin, glycosaminoglycans,
proliferating endothelial cells, new
capillaries, and fibroblasts mixed with inflammatory macrophages and
lymphocytes. Epithelial
cells are more active during this phase and are responsible for initial
wound closure.
Endothelial cells:
There occurs the formation of new blood vessels at
the site where injury has occurred; these blood vessels are leaky which gives
edematous appearance to new granulation tissue. Maturation
phase
Hard
tissue healing
Conclusion
References
2. Joyee M Black and Jane Hokanson
Hawks. Medical Surgical Nursing 7th Edn (2009) Saunders, USA 1: 395-415.
3. SN Nanjunde Gowda. Foundations of
Nursing (2010) Jaypee Brothers Medical Publishers, New Delhi, India 494- 498.*Corresponding
author
Citation
Keywords
