22 February 2006 Flap monitoring using infrared spectroscopy
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Abstract
We report results of clinical trials on flap monitoring in 65 plastic surgeries. Hemoglobin oxygen saturation of flap tissue (StO2) was monitored non-invasively by using ODISseyTM tissue oximeter, an infrared spectroscopic device. StO2 measurements were conducted both intra-operatively and post-operatively. From the intra-operative measurements, we observed that StO2 values dropped when the main blood vessels supplying the flap were clamped in surgery, and that StO2 jumped after anastomosis to a value close to its pre-operative value. From post-operative monitoring measurements for the 65 flap cases, each lasted two days or so, we found that the StO2 values approach to a level close to the baseline if the surgery was successful, and that the StO2 value dropped to a value below 30% if there is a perfusion compromise, such as vascular thrombosis.
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Alex Keller, Alex Keller, Leigh P. Wright, Leigh P. Wright, Mohamed Elmandjra, Mohamed Elmandjra, Jian-min Mao, Jian-min Mao, } "Flap monitoring using infrared spectroscopy", Proc. SPIE 6078, Photonic Therapeutics and Diagnostics II, 607806 (22 February 2006); doi: 10.1117/12.639807; https://doi.org/10.1117/12.639807
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