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Postoperative Transcutaneous Blood-oxygen Saturation Assay for the Continuously Monitoring of Vascular Crisis of the Free Flap

Author: HanDong
Tutor: ChenChuanJun；LiZhiLai；ZhangZhiHong
School: Anhui Medical University,
Course: Clinical Stomatology
Keywords: Free flap Vascular crisis Oxygen saturation Dynamic Monitoring
CLC: R622
Type: Master's thesis
Year: 2008
Downloads: 55
Quote: 0
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Abstract


Purpose of rabbits in the lower abdomen superficial epigastric artery flap model to simulate free flap various types of vascular crisis , evaluate percutaneous oxygen saturation (SP02) monitoring method in the dynamic monitoring of free flap vascular crisis after the application value. Methods 30 rabbits disinfection, skin preparation, making bilateral lower abdominal superficial epigastric artery flap were randomly divided into three groups : group blocked artery , vein occlusion group , arteriovenous blocked group . Using microsurgical vascular clamp block and vascular recanalization with reflective pulse oximetry monitor flap SP02 percutaneous dynamic measurement of changes, and with the flap color, temperature change time for comparison. Results 106 ± 37s after arterial occlusion flap minimize percutaneous SP02 threshold recanalization after 178 ± 17s rebounded to normal levels . Vein occlusion , the flap SP02 begins as a disorder and volatility , 198 ± 26s SP02 after reaching the minimum threshold of 635 ± 37s after recanalization gentle rise to normal levels. Vein occlusion decline and recovery group was significantly longer than the time difference artery occlusion group (P lt; 0.001). Whole blood after blocking SP02 fall time and time and arterial occlusion recanalization were similar . Flap temperature, color changes significantly longer than flap SP02 change time . Conclusion Percutaneous SP02 noninvasive and simple measurement method can be sensitive , objective, continuous , quantitative reflection of flap perfusion , which is earlier than temperature changes , such as changes in color performance . Pulse oximetry monitors inexpensive, simple, reliable, easy to operate, repeatability , etc., is an objective condition monitoring flap blood supply of the best instrument to use with compatible clinical observation . And be able to take advantage of wireless electronic engineering technology , continuous , real-time , non-invasive dynamic monitoring , early detection of vessel thrombosis and embolism flap type and automatic alarm notification medical staff , for the rescue flap save time.

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