eschar
/'eskɑ:/
Definition
- Noun:
- A dry, dark scab or slough: An eschar is a piece of dead tissue, often black or brown, that separates from healthy skin. It typically forms over a wound, especially after a burn, cauterization, gangrene, or certain infections.
Usage
- The term "eschar" is a medical term used primarily by healthcare professionals (doctors, nurses) to describe a specific type of wound covering.
- It is used to assess the severity and healing stage of a wound. The presence, size, and stability of an eschar are important clinical observations.
- Example Sentence:
Advanced Usage
- "Escharotomy": A surgical procedure involving an incision through an eschar. This is often done to relieve pressure when a circumferential eschar (one that goes all the way around a limb or the torso) restricts blood flow or breathing.
- The patient underwent an escharotomy to treat compartment syndrome caused by the burn.
Variants and Related Words
- Escharotic (adjective): Describing a substance that causes the formation of an eschar by burning or corroding tissue.
- Some historical treatments used escharotic agents, which are now considered dangerous.
Synonyms
- Scab: A more general, common term for a crust of dried blood and serum over a wound. An eschar is a specific, often thicker type of scab associated with deeper tissue damage.
- Slough: Dead tissue separating from living tissue, often moist or stringy. An eschar is typically dry and adherent.
- Necrosis: This refers to the death of cells or tissue itself, which is the process that leads to eschar formation.
Notes on Meaning
- The key characteristic of an eschar is that it is composed of necrotic (dead) tissue. It is not simply dried blood or plasma.
- It acts as a natural biological dressing but can also harbor bacteria and impede healing if it is unstable or infected.
- Unlike a common scab, an eschar often requires professional medical management for proper wound healing.
Noun
-
a dry scab formed on the skin following a burn or cauterization of the skin
