{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T22:54:11Z","timestamp":1791327251349,"version":"4.3.1"},"reference-count":18,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2023,6,12]],"date-time":"2023-06-12T00:00:00Z","timestamp":1686528000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Asian J Endoscop Surgery"],"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Persistent descending mesocolon (PDM) is a rare congenital atypia of fixation of the descending colon, and currently, very few detailed studies exist on its vascular anatomy. This study was conducted to evaluate the features of the vascular anatomy of PDM to help avoid intraoperative lethal injury and subsequent postoperative complications in laparoscopic colorectal surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We retrospectively analyzed the data of 534 patients who underwent laparoscopic left\u2010sided colorectal surgery. PDM was diagnosed using preoperative axial computed tomography (CT) view. The vascular anatomical features were compared between PDM and non\u2010PDM cases based on three\u2010dimensional (3D)\u2010CT angiography findings. Additionally, the perioperative short\u2010term outcomes of laparoscopic surgery in the 534 patients were also compared between PDM and non\u2010PDM cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the total 534 patients, 13 patients (2.4%) presented with PDM. No branching pattern of the inferior mesenteric artery (IMA) specific to PDM was found. In the running direction of the IMA and sigmoidal colic artery (SA), the midline\u2010shift of IMA and the right\u2010shift of SA were significantly more in PDM than in non\u2010PDM cases, respectively (38.5% vs. 2.5%, <jats:italic>P<\/jats:italic>\u2009\u2264\u2009.0001; 61.5% vs. 4.6%, <jats:italic>P<\/jats:italic>\u2009\u2264\u2009.0001). The perioperative short\u2010term outcomes of laparoscopic surgery in the 534 patients were similar between PDM and non\u2010PDM cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Because changes in the direction of the vascular running are often observed due to adhesions and shortening of the mesentery in PDM cases, performing a detailed preoperative evaluation of vascular anatomy using imaging modalities such as 3D\u2010CT angiography is important.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ases.13203","type":"journal-article","created":{"date-parts":[[2023,6,12]],"date-time":"2023-06-12T07:34:11Z","timestamp":1686555251000},"page":"465-472","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Vascular anatomical study of persistent descending mesocolon in patients undergoing laparoscopic surgery for colorectal cancer"],"prefix":"10.1111","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8725-2857","authenticated-orcid":false,"given":"Takeo","family":"Nitta","sequence":"first","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"},{"name":"Department of Gastroenterological Surgery II Hokkaido University Faculty of Medicine  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsushi","family":"Ikeda","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"},{"name":"Department of Gastroenterological Surgery II Hokkaido University Faculty of Medicine  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sosuke","family":"Sumikawa","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kuniaki","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hidehiko","family":"Kitagami","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"},{"name":"Department of Gastroenterological Surgery II Hokkaido University Faculty of Medicine  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takaya","family":"Kusumi","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasunori","family":"Nishida","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Keiyukai Sapporo Hospital  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