{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T16:20:36Z","timestamp":1783354836641,"version":"3.54.6"},"reference-count":30,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T00:00:00Z","timestamp":1778544000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T00:00:00Z","timestamp":1783296000000},"content-version":"vor","delay-in-days":55,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Tech Coloproctol"],"published-print":{"date-parts":[[2026,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>\n                      Obesity adds technical complexity to colorectal surgery and has been linked to higher rates of perioperative complications and poorer long-term outcomes. Its prevalence is increasing among patients undergoing minimally invasive total mesorectal excision for rectal cancer; however, its impact on perioperative and oncologic outcomes remains controversial. Therefore, the aim of this study was\u00a0to compare short- and long-term outcomes between obese (body mass index (BMI)\u2009\u2265\u200927\u00a0kg\/m\n                      <jats:sup>2<\/jats:sup>\n                      ) and nonobese patients undergoing minimally invasive total mesorectal excision.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Retrospective review of patients with rectal cancer undergoing laparoscopic, robotic, or transanal total mesorectal excision (TME) between January 2015 and December 2022. Propensity score matching (1:1) was performed on baseline characteristics. Primary outcomes included perioperative parameters, postoperative complications, and long-term oncologic outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      After matching, 142 patients were included in each group. Obesity was associated with higher conversion rates to open surgery (2.8% versus 0%,\n                      <jats:italic>p\u2009=\u2009<\/jats:italic>\n                      0.044) and increased overall complications (40.1% versus 28.9%,\n                      <jats:italic>p\u2009=\u2009<\/jats:italic>\n                      0.046), driven mainly by surgical wound infections (9.2% versus 1.4%,\n                      <jats:italic>p\u2009=\u2009<\/jats:italic>\n                      0.004). No differences were observed in major complications, anastomotic leakage, hospital stay, margin status, or 5-year overall (88% versus 89.4%,\n                      <jats:italic>p\u2009=\u2009<\/jats:italic>\n                      0.409) and disease-free (62.7% versus 72.5%,\n                      <jats:italic>p\u2009=\u2009<\/jats:italic>\n                      0.653) survival.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Obesity increased conversion and minor complication rates but did not adversely affect short-term outcomes or long-term oncologic outcomes after minimally invasive TME procedures. Tailored perioperative strategies may mitigate obesity-associated risks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration<\/jats:title>\n                    <jats:p>Not applicable.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10151-026-03292-x","type":"journal-article","created":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T18:55:02Z","timestamp":1778612102000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Short- and long-term outcomes of minimally invasive total mesorectal excision in obese versus nonobese patients with rectal cancer: a propensity score matched study"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-2614-4751","authenticated-orcid":false,"given":"G.-Y.","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1856-9663","authenticated-orcid":false,"given":"K.-Y.","family":"Tsai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7497-4444","authenticated-orcid":false,"given":"C.-K.","family":"Liao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5748-1659","authenticated-orcid":false,"given":"J.-F.","family":"You","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4819-2104","authenticated-orcid":false,"given":"C.-C.","family":"Lai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2673-9850","authenticated-orcid":false,"given":"S.-H.","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,12]]},"reference":[{"issue":"3","key":"3292_CR1","doi-asserted-by":"publisher","first-page":"229","DOI":"10.3322\/caac.21834","volume":"74","author":"F Bray","year":"2024","unstructured":"Bray F, Laversanne M, Sung H, Ferlay J, Siegel RL, Soerjomataram I et\u00a0al. 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The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This study was approved by the Institutional Review Board of Chang Gung Memorial Hospital (approval no. 202501451B0).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Institutional review board statement"}},{"value":"Due to the retrospective design of the study\u00a0and the use of de-identified data, the local ethics committee confirmed that informed consent from participants was not necessary.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent statement"}},{"value":"All authors consent to publish this work.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}}],"article-number":"92"}}