28.9: Key Terms
- Page ID
- 111582
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)- angiogenesis
- creation of new blood vessels
- approximated
- brought close together, as in the case of wounds with sealed, clean edges
- autolytic debridement
- process of using the body’s intrinsic debriding mechanism to remove nonviable tissue
- avascular
- lacking blood vessels
- biological debridement
- use of sterile bottle fly larvae to remove nonviable tissue; also known as maggot larval therapy (MT)
- Braden Scale
- risk assessment tool with six criteria for determining the risk of skin breakdown
- comprehensive wound assessment
- complete, holistic, written, and visual record of the wound’s current status and progress
- dehiscence
- separation of the edges of a surgical wound
- dermal-epidermal junction
- barrier between the epidermis and the dermis, which ensures strong resistance to physical stress
- desiccation
- excessive dryness in the periwound
- enzymatic debridement
- selective method of debridement that uses an exogenous enzyme known as collagenase; also known as chemical debridement
- epibole
- severely rolled wound edges
- epithelialization
- regeneration of the epidermis and the formation of granulation tissue
- full-thickness wound
- injury extending through all skin layers, potentially involving muscle, fascia, or bone
- granulation tissue
- new connective tissue with fragile, thin-walled capillaries
- hematoma
- area of blood that collects outside large blood vessels
- hyperbaric oxygen therapy (HBOT)
- therapy in which patients breathe pure oxygen in a pressurized environment to help wound progression and healing
- hypergranulation
- excess granulation tissue filling the wound bed beyond the height of the surface of the wound
- hypodermis
- layer of fat and connective tissue that links skin to the underlying structures
- inflammation
- second phase of wound healing, characterized by the movement of white blood cells to the wound bed
- keratinocyte
- cell that participates in the contraction and migration of cells across a wound bed to facilitate healing
- maceration
- excessive presence of moisture in the periwound, which affects the integrity of the surrounding skin
- mechanical debridement
- nonselective type of debridement that applies physical force to remove necrotic tissue
- necrotic tissue
- avascular debris that can appear as eschar, slough, or biofilm
- negative pressure wound therapy (NPWT)
- therapeutic technique that applies negative pressure to the wound bed to manage exudate and facilitate healing
- Norton Scale
- risk assessment tool with five criteria for determining the risk of skin breakdown
- partial-thickness wound
- superficial injury that involves the epidermis, dermis, or both
- periwound
- skin surrounding a wound
- pressure injury
- localized damage to the skin and underlying soft tissue, typically over a bony prominence or the site upon which a medical device was placed
- primary intention
- healing of a wound with clean, approximated edges
- proliferation
- third phase of wound healing, characterized by epithelialization, angiogenesis, collagen formation, and contraction
- remodeling
- final phase of wound healing, characterized by regrowth and reorganization of collagen
- secondary intention
- healing of a wound from the “bottom up,” due to edges that cannot be approximated
- senescent cell
- nonfunctioning cell that has stopped dividing but has not died
- slough
- fibrinous necrotic tissue located on top of the wound bed; characterized as loose or stringy and yellow or tan
- surgical debridement
- use of a scalpel, forceps, curette, scissors, or other instruments to remove necrotic tissue from the wound base; also known as sharp debridement
- tertiary intention
- plan to delay healing while the wound remains open
- tunneling
- formation of a sinus tract under any part of a wound’s edge
- undermining
- erosion of tissue under the edges of a wound