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pubmed-article:1852823pubmed:dateCreated1991-8-20lld:pubmed
pubmed-article:1852823pubmed:abstractTextVigilant postoperative monitoring of the buried muscle flap is critical after free transfer because early diagnosis of vascular insufficiency is essential to allow prompt correction. We have identified a monitoring method utilizing needle electrodes and impedance plethysmography that gives a beat-to-beat representation of muscular perfusion. In 25 New Zealand White rabbits the gastrocnemius muscle was isolated on its vascular pedicle, and two intramuscular needle electrodes were placed. The instantaneous impedance changes of the muscle (corresponding to the pulsatile volume changes of perfusion) were measured and recorded. Using this representation of perfusion, an independent judge was able to correctly diagnose muscular ischemia 100 percent of the time (n = 25). Further, the judge was able to correctly distinguish the ischemia as arterial (n = 10) or venous (n = 10) in origin 100 percent of the time. Additionally, we monitored muscle perfusion transcutaneously in five free muscle flaps and demonstrated a reliable impedance signal that correlated with perfusion.lld:pubmed
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pubmed-article:1852823pubmed:authorpubmed-author:PuckettC LCLlld:pubmed
pubmed-article:1852823pubmed:authorpubmed-author:StewartD HDHlld:pubmed
pubmed-article:1852823pubmed:authorpubmed-author:WelshC FCFlld:pubmed
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pubmed-article:1852823pubmed:pagination292-8lld:pubmed
pubmed-article:1852823pubmed:dateRevised2011-2-16lld:pubmed
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pubmed-article:1852823pubmed:year1991lld:pubmed
pubmed-article:1852823pubmed:articleTitleImpedance plethysmography: a new method for continuous muscle perfusion monitoring.lld:pubmed
pubmed-article:1852823pubmed:affiliationDivision of Plastic Surgery, University of Missouri, Columbia.lld:pubmed
pubmed-article:1852823pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:1852823pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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