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Data concerning non-obese sarcopenic patients in oncologic surgery are scarce and heterogeneous. The aim of this study was to determine the impact of sarcopenia and myosteatosis in non-obese patients with cancer of the right colon on clinical outcome.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Methods<\/jats:title>\n<jats:p>This study comprised 85 patients with a BMI\u2009&lt;\u200930\u00a0kg\/m<jats:sup>2<\/jats:sup>, who underwent surgery for right colon cancer in a single center. Skeletal muscle area (SMA), visceral fat area (VFA), and myosteatosis were retrospectively assessed using preoperative abdominal CT images. Univariate und multivariate analysis was performed to evaluate the association between body composition, complications, and oncologic follow-up.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>Traditional risk factors such as visceral fat (<jats:italic>p<\/jats:italic>\u00a0=\u20090.8653), BMI (<jats:italic>p<\/jats:italic>\u00a0=\u20090.8033), myosteatosis (<jats:italic>p<\/jats:italic>\u00a0=\u20090.7705), and sarcopenia (<jats:italic>p<\/jats:italic>\u00a0=\u20090.3359) failed to show any impact on postoperative complications or early recurrence. In our cohort, the skeletal muscle index (SMI) was the only significant predictor for early cancer recurrence (<jats:italic>p<\/jats:italic>\u00a0=\u20090.0467).<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusion<\/jats:title>\n<jats:p>SMI is a significant prognostic factor for early cancer recurrence in non-obese colon cancer patients. Our study shows that conventional thresholds for sarcopenia and BMI do not seem to be reliable across various cohorts. Target prehabilitation programs could be useful to improve outcome after colorectal surgery.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Trial Registration<\/jats:title>\n<jats:p>DRKS00014655, <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.apps.who.int\/trialsearch\">www.apps.who.int\/trialsearch<\/jats:ext-link><\/jats:p>\n<\/jats:sec>","DOI":"10.1007\/s00423-020-01901-3","type":"journal-article","created":{"date-parts":[[2020,6,5]],"date-time":"2020-06-05T23:12:17Z","timestamp":1591398737000},"page":"469-477","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Skeletal muscle index is an independent predictor of early recurrence in non-obese colon cancer patients"],"prefix":"10.1007","volume":"405","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9311-7413","authenticated-orcid":false,"given":"Dagmar","family":"Schaffler-Schaden","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christof","family":"Mittermair","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theresa","family":"Birsak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Weiss","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tobias","family":"Hell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gottfried","family":"Schaffler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helmut","family":"Weiss","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,6,5]]},"reference":[{"key":"1901_CR1","doi-asserted-by":"publisher","unstructured":"Bahat G, Tufan A, Kilic C, Karan MA, Cruz-Jentoft AJ (2018) Prevalence of sarcopenia and its components in community-dwelling outpatient older adults and their relation with functionality. 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