A timely
diagnosis of vascular compromise improves free flap survival. The aim of this
study was to determine the feasibility of monitoring flap vascular patency
through noninvasive microcirculation monitoring using SDF.
An
experimental study was performed in five volunteers. A radial forearm flap
was simulated in both upper extremities and cutaneous microcirculation
assessment devices were used (SDF and NIRS), and compared with clinical and
doppler evaluation.
Conditions of
venous occlusion (VO) and total vascular occlusion (TVO) were mimicked by using
a cuff. The results of the Microscan SDF monitoring during VO and TVO showed a
reduced microcirculatory flow at 16.5 (6-30) and 6 (2-11) seconds respectively.
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