Dynamic variations in blood flow as measured by laser doppler velocimetry

A study in rat skin flaps

Nicholas J. Marks, Ronald E. Trachy, Charles W Cummings

Research output: Contribution to journalArticle

Abstract

Some of the measured variations of blood flow in skin flaps are reviewed. Ventral island skin flaps in rats are taken as an experimental model, and serial measurements using laser Doppler veloeimetry have been made across the flaps for a period of up to 4 weeks postoperatively. The results demonstrate that areas of these flaps have periods of complete ischemia with no flow. These areas may survive. Conversely, apparently perfused areas later succumbed and became nonviable. The flow readings obtained are compared with fluorescence as a predictor of survival. The immediate and longer-term changes in flow across the length of these flaps are described. These findings are discussed with reference to the suggested methods of increasing the length of flap survival. The hypothesis of nonnutritive blood flow is also reassessed in the light of these findings.

Original languageEnglish (US)
Pages (from-to)804-810
Number of pages7
JournalPlastic and Reconstructive Surgery
Volume73
Issue number5
StatePublished - 1984
Externally publishedYes

Fingerprint

Laser-Doppler Flowmetry
Skin
Surgical Flaps
Reading
Lasers
Theoretical Models
Ischemia
Fluorescence

ASJC Scopus subject areas

  • Surgery

Cite this

Dynamic variations in blood flow as measured by laser doppler velocimetry : A study in rat skin flaps. / Marks, Nicholas J.; Trachy, Ronald E.; Cummings, Charles W.

In: Plastic and Reconstructive Surgery, Vol. 73, No. 5, 1984, p. 804-810.

Research output: Contribution to journalArticle

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