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Aim of this study is to evaluate a novel microdialysis technique to monitor tissue microcirculation preoperatively and predict the success of limb amputation in such patients. Overall, 165 patients with type 2 diabetes mellitus undergoing lower limb amputation were enrolled. A microdialysis catheter was placed preoperatively at the level of the intended flap for the stump reconstruction, and the levels of glucose, glycerol, lactate and pyruvate were measured for 24\u00a0consecutive hours. Patients were then amputated and monitored for 30 days regarding the outcome of amputation. Failure of amputation was defined as delayed healing or stump ischemia. Patients were divided into two groups based on the success of amputation. There was no difference between the two groups regarding gender, ASA score, body mass index, comorbidities, diagnostic modality used, level of amputation, as well as glucose, glycerol, and pyruvate levels. However, local concentrations of lactate were significantly different between the two groups and lactate\/pyruvate (L\/P) ratio was independently associated with failed amputation (threshold defined at 25.35). Elevated preoperative tissue L\/P ratio is independently associated with worse outcomes in diabetic patients undergoing limb amputation. Therefore, preoperative tissue L\/P ratio could be used as a predicting tool for limb amputation's outcome, although more clinical data are needed to provide safer conclusions.<\/jats:p>","DOI":"10.1111\/wrr.12492","type":"journal-article","created":{"date-parts":[[2016,10,13]],"date-time":"2016-10-13T21:45:39Z","timestamp":1476395139000},"page":"1073-1080","source":"Crossref","is-referenced-by-count":4,"title":["The emerging role of microdialysis in diabetic patients undergoing amputation for limb ischemia"],"prefix":"10.1111","volume":"24","author":[{"given":"Lampros","family":"Liasis","sequence":"first","affiliation":[{"name":"Department of Surgery Northwick Park Hospital Watford Road Harrow London United Kingdom"},{"name":"1st Propaedeutic Department of Surgery University of Athens Medical School, Hippocration Hospital  Athens 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