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Blood Flux and Venoarteriolar Response of the Skin in Legs with Chronic Venous Insufficiency Measured at Two Different Depths by Using a Double-Wavelength Laser Doppler Technique

The Medical Center of Lappeenranta, Finland and Department of Dermatology, University of Turku, Turku, Finland.

Pekka Vilkko, MD

The Medical Center of Lappeenranta, Finland and Department of Vascular Surgery, South Carelian Central Hospital, Lappeenranta, Finland.

Pertti J. Kolari, MSc

The Medical Center of Lappeenranta, Finland.

The laser Doppler flux (LDF) and the venoarteriolar response (VAR) of the skin in legs with chronic venous insufficiency (CVI) was measured by using a new double-wavelength probe technique (543 nm and 780 nm). The recordings were taken in a recumbent and in a sitting position. Ten patients with CVI and 20 control subjects with healthy legs were investigated. The LDF was found to be significantly enhanced in a recumbent position at 543 nm and in a sitting position at 780 nm in legs with CVI compared with healthy legs (P<0.05 and P=0.02, respectively). The authors could not find the VAR to be impaired in either wavelength in legs with CVI compared with healthy legs. The double-wave length probe technique makes it possible to record simultaneously the LDF in the super ficial and deep layers of the skin on the same place in the leg.

Angiology, Vol. 49, No. 6, 441-446 (1998)
DOI: 10.1177/000331979804900604


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