wound etiology and healing
Expert-defined terms from the Professional Certificate in Wound Care Management course at London School of Business and Administration. Free to read, free to share, paired with a globally recognised certification pathway.
Abdominal wound #
A wound located on the abdomen, which can be caused by surgical incisions, trauma, or medical conditions such as ulcers or hernias.
Acute wound #
A wound that progresses through the normal stages of wound healing in a timely manner, typically healing within a few weeks. Acute wounds are often caused by trauma or surgery.
Alginate dressing #
A type of wound dressing made from seaweed extract that is highly absorbent and used for moderate to heavily exuding wounds. Alginate dressings form a gel when in contact with wound fluid, promoting a moist wound environment.
Anaerobic bacteria #
Bacteria that thrive in environments with little to no oxygen. Anaerobic bacteria can be found in infected wounds and may delay the healing process.
Autolytic debridement #
A process where the body's own enzymes and moisture are used to break down and remove dead tissue from a wound. Autolytic debridement is a natural and gentle way to promote wound healing.
Biofilm #
A complex community of microorganisms that adhere to each other and to a surface, such as a wound bed. Biofilms can impede wound healing by protecting bacteria from the body's immune response and antimicrobial treatments.
Compression therapy #
A treatment method that involves applying pressure to a wound or the surrounding area to reduce swelling and promote circulation. Compression therapy is commonly used for venous leg ulcers and other conditions that cause edema.
Debridement #
The removal of dead, damaged, or infected tissue from a wound to promote healing. Debridement can be done through various methods, including surgical, enzymatic, mechanical, or autolytic.
Diabetic foot ulcer #
A type of chronic wound that occurs on the foot of individuals with diabetes. Diabetic foot ulcers are often caused by neuropathy, poor circulation, and pressure from ill-fitting footwear.
Edema #
Swelling caused by an accumulation of fluid in the body tissues. Edema can interfere with wound healing by impeding blood flow and oxygen delivery to the wound site.
Epithelialization #
The process of new skin cells migrating from the wound edges to cover the wound bed. Epithelialization is a crucial step in wound healing and helps to restore the skin's barrier function.
Exudate #
Fluid that oozes out of a wound, containing a mixture of blood plasma, nutrients, and waste products. Excessive exudate can indicate inflammation or infection in a wound.
Fibroblast #
Cells that play a key role in the formation of new connective tissue, including collagen and elastin fibers. Fibroblasts are essential for wound healing and tissue repair.
Granulation tissue #
New tissue that forms in a wound bed during the proliferative phase of wound healing. Granulation tissue is rich in blood vessels and collagen, providing a foundation for epithelial cells to migrate and cover the wound.
Hydrocolloid dressing #
A type of wound dressing that contains gel-forming agents, such as pectin or gelatin, to create a moist environment for the wound. Hydrocolloid dressings are used for low to moderately exuding wounds.
Infection #
The invasion and multiplication of pathogenic microorganisms, such as bacteria, in a wound. Infections can delay wound healing, cause inflammation, and lead to systemic complications.
Ischemia #
A condition where tissues do not receive an adequate blood supply, leading to decreased oxygen and nutrient delivery. Ischemia can impair wound healing and increase the risk of tissue necrosis.
Keratinocytes #
The predominant cells in the epidermis that produce keratin, a protein that forms the protective outer layer of the skin. Keratinocytes play a crucial role in wound reepithelialization.
Lymphedema #
Swelling caused by the accumulation of lymph fluid in the tissues, usually due to impaired lymphatic drainage. Lymphedema can complicate wound healing by increasing the risk of infection and delaying tissue repair.
Macrophage #
Immune cells that engulf and digest cellular debris, foreign substances, and pathogens in the body. Macrophages play a vital role in the inflammatory phase of wound healing and tissue repair.
Necrosis #
The death of cells or tissues in a localized area, often caused by ischemia, infection, or trauma. Necrosis can impede wound healing and lead to the formation of dead tissue in the wound bed.
Pressure ulcer #
A type of chronic wound that develops when prolonged pressure or friction damages the skin and underlying tissues. Pressure ulcers are commonly seen in bedridden or immobile individuals.
Revascularization #
The restoration of blood flow to ischemic tissues through surgical or endovascular procedures. Revascularization is essential for promoting wound healing and preventing tissue necrosis.
Staging #
The process of classifying wounds based on their severity, size, location, and other characteristics. Staging helps healthcare providers determine the appropriate treatment and monitor the progress of wound healing.
Surgical wound #
A wound caused by an incision made during a surgical procedure. Surgical wounds are classified based on their depth, contamination level, and healing potential.
Tissue necrosis #
The death of cells or tissues in a wound due to inadequate blood supply, infection, or trauma. Tissue necrosis can delay wound healing and increase the risk of complications.
Ulcer #
A type of chronic wound characterized by a loss of skin and underlying tissues, often caused by poor circulation, pressure, or neuropathy. Ulcers can be classified based on their etiology, location, and appearance.
Venous ulcer #
A type of chronic wound that occurs due to venous insufficiency, leading to impaired circulation and tissue damage. Venous ulcers are commonly seen on the lower legs and ankles.
Wound bed #
The base of a wound where new tissue forms and healing takes place. The appearance and condition of the wound bed can provide valuable information about the stage of wound healing and the effectiveness of treatment.
Wound care #
The management of wounds to promote healing and prevent complications. Wound care involves assessing the wound, cleaning and dressing it, and monitoring the progress of healing over time.
Wound closure #
The final stage of wound healing where the wound edges come together and the skin regenerates to cover the wound. Proper wound closure is essential for preventing infection and promoting optimal cosmetic outcomes.
Wound dressing #
A material applied to a wound to protect it from external contaminants, maintain a moist environment, and promote healing. Wound dressings come in various forms, such as gauze, films, foams, and hydrogels.
Wound etiology #
The underlying cause or origin of a wound, which can include factors such as trauma, pressure, ischemia, infection, or chronic diseases. Understanding the wound etiology is essential for developing an appropriate treatment plan.
Wound healing #
The complex and dynamic process of repairing damaged tissues and restoring skin integrity. Wound healing involves several overlapping phases, including hemostasis, inflammation, proliferation, and remodeling.
Wound infection #
The presence of pathogenic microorganisms, such as bacteria, in a wound that can impede healing and lead to systemic complications. Wound infections may present with symptoms such as pain, redness, swelling, and purulent drainage.
Wound assessment #
The systematic evaluation of a wound to gather information about its size, depth, location, exudate, and surrounding skin. Wound assessment helps healthcare providers determine the appropriate treatment and monitor the progress of healing.
Wound exudate #
Fluid that drains from a wound, containing a mixture of blood plasma, inflammatory cells, and tissue debris. The amount and characteristics of wound exudate can provide valuable information about the status of wound healing.
Wound management #
The comprehensive care and treatment of wounds to promote healing and prevent complications. Wound management involves assessing the wound, addressing underlying causes, and implementing appropriate interventions based on best practices.
Wound matrix #
The extracellular scaffold that supports cell migration and tissue formation in a wound. The wound matrix is composed of proteins, such as collagen and fibronectin, and provides a framework for tissue repair and remodeling.
Wound size #
The dimensions of a wound, including length, width, and depth, measured in centimeters or inches. Monitoring changes in wound size over time is essential for tracking the progress of healing and evaluating the effectiveness of treatment.
Wound tissue #
The cellular components that make up the structure of a wound, including epithelial cells, fibroblasts, macrophages, and blood vessels. Different types of wound tissue play distinct roles in the healing process and tissue repair.
Wound vac #
Abbreviation for negative pressure wound therapy, a treatment method that uses suction to remove excess exudate, promote blood flow, and accelerate wound healing. Wound vacs are commonly used for complex and chronic wounds.
Xerosis #
Dryness of the skin caused by a lack of moisture, which can impair wound healing and increase the risk of skin breakdown. Xerosis can be managed with emollients and moisturizers to maintain skin integrity.
Yeast infection #
A fungal infection caused by an overgrowth of yeast organisms, such as Candida, in a wound. Yeast infections can delay wound healing and lead to inflammation, itching, and discharge.
Zinc oxide #
A topical agent with antimicrobial and astringent properties that is used in wound care to promote healing and protect the skin. Zinc oxide can help prevent infection, reduce inflammation, and support tissue repair.