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Article
July 1983

Laser Doppler Velocimetry and Fluorescein Dye in the Prediction of Skin Flap Viability: A Comparison

Author Affiliations

Gail Tolentino
From the Mason Clinic (Dr Larrabee) and Virginia Mason Research Center (Drs Larrabee and Sutton), and the Center for Bioengineering, University of Washington (Dr Holloway and Ms Tolentino), Seattle.

Arch Otolaryngol. 1983;109(7):454-456. doi:10.1001/archotol.1983.00800210030006
Abstract

• Laser Doppler velocimetry provides a quantitative and noninvasive measurement of cutaneous blood flow. Piglets were used to compare laser Doppler velocimetry and fluorescein with each other and as predictors of flap viability. Twenty-five random pattern rectangular skin flaps were studied with both techniques. Eighteen of the flaps were observed for two weeks and the length of viable flap documented. A reading of 100 mV on the laser Doppler corresponded with full fluorescence after dye injection. Both fluorescein and the laser Doppler underestimated flap surviving length slightly. Laser Doppler readings taken 24 hours postoperatively predicted the length of surviving flap exactly. The laser Doppler correlated well with fluorescein dye.

(Arch Otolaryngol 1983;109:454-456)

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