Abstract
A number of clinical disorders of free vascularized flap are presumed to reflect insufficient blood flow (BF) or an inadequate range of vascular responsiveness. We compared the changes in BF in a pedicled and free epigastric flap, directly after and 90 min after performing microsurgical artery anastomoses. We used the clamping method and laser Doppler flowmetry in six Sprague-Dawley rats. The BF response curves shortly after re-anastomosing of the artery differ markedly from those in a pedicled flap model and curves registered 90 min after performing the anastomosis. We conclude that the clamping method is reliable and reproducible when studying the short-term autoregulatory BF patterns of epigastric pedicled and free flaps.
Published Version
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