epithelialization
Pronunciation: eh-pi-THEE-lee-al-eye-ZAY-shun
The process by which new epithelial cells migrate across a wound surface to restore the skin barrier.
Full Definition
Epithelialization is the fundamental healing process by which epithelial cells proliferate and migrate across a wound bed to restore the protective epidermal barrier. In burn wounds, epithelialization occurs from viable epithelial elements including hair follicles, sweat glands, and wound margins. The process involves cell division, migration, and differentiation, ultimately forming a continuous epithelial layer. In partial-thickness burns, epithelialization can occur spontaneously from retained dermal appendages, while full-thickness burns require surgical intervention such as skin grafting to achieve epithelialization. The rate and quality of epithelialization are influenced by factors including wound depth, infection status, patient age, nutrition, and local wound environment. Complete epithelialization is essential for wound closure and prevention of complications.
Usage
Usage note: Also spelled 'epithelialisation' in British English.
In Context
- "Epithelialization was progressing well from the wound margins and follicular remnants." — Wound assessment note
- "Complete epithelialization was achieved fourteen days post-injury." — Healing progress documentation