local anesthetic tumescence
Pronunciation: too-MESS-ens
The temporary tissue swelling and firmness created by injection of anesthetic solution into tissue planes.
Full Definition
Local anesthetic tumescence refers to the intentional swelling and firmness of tissues achieved through injection of dilute anesthetic solutions, typically containing lidocaine with epinephrine in saline. This technique serves multiple purposes in dermatologic surgery: it provides anesthesia, creates a tissue plane for easier dissection, compresses blood vessels for hemostasis, and can help define surgical margins. The tumescent effect facilitates procedures such as liposuction, large excisions, and flap reconstructions by creating a firm, distended tissue plane that improves surgical visualization and reduces bleeding. The duration of tumescence varies with solution composition and injection volume.
Usage
Usage note: Document the anesthetic concentration, epinephrine dilution, and total volume when describing tumescent injection.
In Context
- "Local anesthetic tumescence was achieved using 0.1% lidocaine with epinephrine to facilitate the extensive undermining." — Operative report
- "The tumescent technique provided excellent hemostasis and tissue plane definition during the reconstruction." — Procedure note