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From January 2010 to August 2021, 138 patients were retrospectively allocated to EXT (n=35) or LHS (n=103) and assessed for postoperative complications, bowel function, metachronous cancer incidence, and prognosis. Results showed shorter operative time with LHS and better bowel function, while anastomotic leakage, metachronous cancer, and long-term survival were comparable.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/surgical-outcomes-of-left-hemicolon-sparing-resection-versus-extensive-resection-for-synchronous-colorectal-cancer/384612/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/surgical-outcomes-of-left-hemicolon-sparing-resection-versus-extensive-resection-for-synchronous-colorectal-cancer/384612.png","ImageObject",300,407,{"name":92,"@type":93},"Ivy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-28","2026-09-24",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What surgical approaches are compared for synchronous colorectal cancer in this study?","Question",{"text":112,"@type":113},"The study compares extensive resection (EXT) with left hemicolon-sparing resection (LHS) for SCRC involving separate segments.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How were patients grouped and what outcomes were evaluated?",{"text":117,"@type":113},"A total of 138 patients were divided into EXT (n=35) and LHS (n=103). Outcomes included postoperative complications, bowel function, metachronous cancer incidence, and prognosis.",{"name":119,"@type":110,"acceptedAnswer":120},"What were the key findings regarding operative time, bowel function, and long-term survival?",{"text":121,"@type":113},"LHS had a markedly shorter operative time and better bowel function, including improved LARS severity distribution. Long-term overall and disease-free survival at 5 years were comparable between groups.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},384612,1790293319,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":52,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},549758252649,"https://ap-avatar.wpscdn.com/avatar/8000253669c5317157?_k=1778319167496531819","Quan et al.  \nWorld Journal of Surgical Oncology (2023) 21:131 [https://doi.org/10.1186/s12957-023-03012-x](https://doi.org/10.1186/s12957-023-03012-x)  \nWorld Journal of Surgical Oncology  \n RESEARCH Open Access  \nSurgical outcomes of left hemicolon sparing   resection versus extensive resection in treating synchronous colorectal cancer involving the right-sided colon and sigmoid colon or rectum  \nJichuan Quan1†, Junguang Liu2†, Sicheng Zhou1, Shiwen Mei1, Wenlong Qiu1, Yuanlian Wan2, Xishan Wang1* and Jianqiang Tang1*  \nAbstract  \nBackground There are different surgical strategies that can treat synchronous colorectal cancer (SCRC) involving separate segments, namely extensive resection (EXT) and left hemicolon-sparing resection (LHS) . We aim to comparatively analyze short-term surgical results, bowel function, and long-term oncological outcomes between SCRC patients treated with the two different surgical strategies.  \nMethods One hundred thirty-eight patients with SCRC lesions located in the right hemicolon and rectum or sigmoid colon were collected at the Cancer Hospital, Chinese Academy of Medical Sciences, and the Peking University First Hospital from January 2010 to August 2021 and divided into EXT group (n= 35) and LHS group (n= 103), depending on their surgical strategies. These two groups of patients were compared for postoperative complications, bowel function, the incidence of metachronous cancers, and prognosis.  \nResults The operative time for the LHS group was markedly shorter compared with the EXT group (268 .6 vs.  \n316.9 min, P= 0 . 015) . The post-surgery incidences of total Clavien-Dindo grade ≥ II complications and anastomotic leakage (AL) were 8.7 vs. 11.4%(P= 0 . 892) and 4.9 vs. 5. 7%(P= 1 . 000) for the LHS and EXT groups, respectively. The mean number of daily bowel movements was significantly lower for the LHS group than for the EXT group (1 . 3 vs. 3. 8, P \u003C 0. 001) . The proportions of no low anterior resection syndrome (LARS), minor LARS, and major LARS for the LHS and EXT groups were 86.5 vs. 80. 0%, 9.6 vs. 0%, and 3.8 vs. 20. 0%, respectively (P= 0 . 037) . No metachronous cancer was found in the residual left colon during the 51-month (median duration) follow-up period. The overall and disease-free survival rates at 5 years were 78 . 8% and 77 . 5% for the LHS group and 81 . 7% and 78 . 6% for the EXT group (P= 0 . 565, P= 0 . 712), respectively. Multivariate analysis further confirmed N stage, but not surgical strategy, as the risk factor that independently affected the patients’ survival.  \n†Jichuan Quan and Junguang Liu contributed equally to this work.  \n*Correspondence: Xishan Wang [wxshan1208@126.com](wxshan1208@126.com)[ ](wxshan1208@126.com)Jianqiang Tang [doc_tjq@hotmail.com](doc_tjq@hotmail.com)  \nFull list of author information is available at the end of the article  \n© The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit [http://creativecommons.org/licenses/by/4.0/](http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ()[. The Creative Commons Public Domain Dedication waiver (](http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ()[","cbCaipQCyG9UmvIP","https://ap.wps.com/l/cbCaipQCyG9UmvIP","pdf",1498423,"English","# Abstract\n## Background\n## Methods\n## Results\n## Conclusions\n# Keywords\n# Introduction","[{\"question\":\"What surgical approaches are compared for synchronous colorectal cancer in this study?\",\"answer\":\"The study compares extensive resection (EXT) with left hemicolon-sparing resection (LHS) for SCRC involving separate segments.\"},{\"question\":\"How were patients grouped and what outcomes were evaluated?\",\"answer\":\"A total of 138 patients were divided into EXT (n=35) and LHS (n=103). Outcomes included postoperative complications, bowel function, metachronous cancer incidence, and prognosis.\"},{\"question\":\"What were the key findings regarding operative time, bowel function, and long-term survival?\",\"answer\":\"LHS had a markedly shorter operative time and better bowel function, including improved LARS severity distribution. Long-term overall and disease-free survival at 5 years were comparable between groups.\"}]","Surgical outcomes of left hemicolon sparing resection versus extensive resection for synchronous colorectal cancer | PDF",1790264237,25]