{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T01:46:34Z","timestamp":1782870394497,"version":"3.54.5"},"reference-count":26,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:00:00Z","timestamp":1778198400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"vor","delay-in-days":54,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"funder":[{"DOI":"10.13039\/501100004091","name":"Kumamoto University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100004091","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Int J Colorectal Dis"],"DOI":"10.1007\/s00384-026-05140-8","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T22:24:04Z","timestamp":1778192644000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Perioperative and oncological outcomes of extended surgery for colorectal cancer in younger patients: a propensity score\u2013matched study"],"prefix":"10.1007","volume":"41","author":[{"given":"Katsuhiro","family":"Ogawa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuji","family":"Miyamoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayane","family":"Kawata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takahiko","family":"Akiyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kota","family":"Arima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keisuke","family":"Kosumi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kojiro","family":"Eto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuto","family":"Hadara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukiharu","family":"Hiyoshi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaaki","family":"Iwatsuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,8]]},"reference":[{"key":"5140_CR1","doi-asserted-by":"publisher","first-page":"729","DOI":"10.1007\/s10555-023-10158-3","volume":"43","author":"R Abedizadeh","year":"2024","unstructured":"Abedizadeh R, Majidi F, Khorasani HR et al (2024) Colorectal cancer: a comprehensive review of carcinogenesis, diagnosis, and novel strategies for classified treatments. Cancer Metastasis Rev 43:729\u2013753","journal-title":"Cancer Metastasis Rev"},{"key":"5140_CR2","doi-asserted-by":"publisher","first-page":"148","DOI":"10.1097\/DCR.0000000000002323","volume":"65","author":"JD Vogel","year":"2022","unstructured":"Vogel JD, Seth IF, Anuradha RB et al (2022) The American society of colon and rectal surgeons clinical practice guidelines for the management of colon cancer. Dis Colon Rectum 65:148\u2013177","journal-title":"Dis Colon Rectum"},{"key":"5140_CR3","doi-asserted-by":"publisher","first-page":"e116","DOI":"10.1016\/S1470-2045(21)00588-X","volume":"23","author":"C Eng","year":"2022","unstructured":"Eng C, J\u00e1come AA, Agarwal R et al (2022) A comprehensive framework for early-onset colorectal cancer research. Lancet Oncol 23:e116\u2013e128","journal-title":"Lancet Oncol"},{"key":"5140_CR4","first-page":"308","volume":"75","author":"NS Wagle","year":"2025","unstructured":"Wagle NS, Nogueira L, Devasia TP et al (2025) Cancer treatment and survivorship statistics, 2025. CA Cancer J Clin 75:308\u2013340","journal-title":"CA Cancer J Clin"},{"key":"5140_CR5","doi-asserted-by":"publisher","first-page":"577","DOI":"10.1016\/j.gassur.2024.01.034","volume":"28","author":"N Machairas","year":"2024","unstructured":"Machairas N, Di Martino M, Primavesi F et al (2024) Simultaneous resection for colorectal cancer with synchronous liver metastases: current state-of-the-art. J Gastrointest Surg 28:577\u2013586","journal-title":"J Gastrointest Surg"},{"key":"5140_CR6","doi-asserted-by":"publisher","first-page":"617","DOI":"10.1016\/j.jamcollsurg.2019.12.018","volume":"231","author":"RA Snyder","year":"2020","unstructured":"Snyder RA, Hao S, Irish W et al (2020) Thirty-day morbidity after simultaneous resection of colorectal cancer and colorectal liver metastasis: an ACS-NSQIP analysis. J Am Coll Surg 231:617-627.e9","journal-title":"J Am Coll Surg"},{"key":"5140_CR7","doi-asserted-by":"publisher","first-page":"1095","DOI":"10.1002\/jso.27393","volume":"128","author":"SN Radomski","year":"2023","unstructured":"Radomski SN, Chen SY, Stem M et al (2023) Simultaneous resection of colorectal cancer and synchronous colorectal liver metastases: a risk-stratified analysis of the NSQIP database. J Surg Oncol 128:1095\u20131105","journal-title":"J Surg Oncol"},{"key":"5140_CR8","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejso.2025.109732","author":"AS Lakha","year":"2025","unstructured":"Lakha AS, Sud V, Alemour Y et al (2025) Simultaneous versus delayed resection of synchronous colorectal liver metastases: a systematic review and meta-analysis. Eur J Surg Oncol. https:\/\/doi.org\/10.1016\/j.ejso.2025.109732","journal-title":"Eur J Surg Oncol"},{"key":"5140_CR9","doi-asserted-by":"publisher","first-page":"656","DOI":"10.1016\/j.gassur.2024.02.007","volume":"28","author":"X Chi","year":"2024","unstructured":"Chi X, Li X, Wang F et al (2024) Simultaneous cholecystectomy for asymptomatic gallstones during elective colorectal cancer surgery. J Gastrointest Surg 28:656\u2013661","journal-title":"J Gastrointest Surg"},{"key":"5140_CR10","doi-asserted-by":"publisher","first-page":"207","DOI":"10.1007\/s00423-009-0514-8","volume":"395","author":"M Tokunaga","year":"2010","unstructured":"Tokunaga M, Hiki N, Fukunaga T et al (2010) Laparoscopic surgery for synchronous gastric and colorectal cancer: a preliminary experience. Langenbecks Arch Surg 395:207\u2013210","journal-title":"Langenbecks Arch Surg"},{"key":"5140_CR11","doi-asserted-by":"publisher","first-page":"806","DOI":"10.3748\/wjg.v18.i8.806","volume":"18","author":"HJ Kim","year":"2012","unstructured":"Kim HJ, Choi GS, Park JS et al (2012) Simultaneous laparoscopic multi-organ resection combined with colorectal cancer: comparison with non-combined surgery. World J Gastroenterol 18:806\u2013813","journal-title":"World J Gastroenterol"},{"key":"5140_CR12","doi-asserted-by":"publisher","first-page":"9","DOI":"10.1001\/jama.2025.3237","volume":"334","author":"R Rubin","year":"2025","unstructured":"Rubin R (2025) Rates of colorectal and other cancers are rising in young adults, puzzling researchers. JAMA 334:9\u201311","journal-title":"JAMA"},{"key":"5140_CR13","doi-asserted-by":"publisher","first-page":"1547","DOI":"10.1056\/NEJMra2200869","volume":"386","author":"FA Sinicrope","year":"2022","unstructured":"Sinicrope FA (2022) Increasing incidence of early-onset colorectal cancer. N Engl J Med 386:1547\u20131558","journal-title":"N Engl J Med"},{"key":"5140_CR14","doi-asserted-by":"publisher","DOI":"10.1186\/1477-7819-3-17","volume":"3","author":"HSJ Ramesh","year":"2005","unstructured":"Ramesh HSJ, Pope D, Gennari R et al (2005) Optimising surgical management of elderly cancer patients. World J Surg Oncol 3:17. https:\/\/doi.org\/10.1186\/1477-7819-3-17","journal-title":"World J Surg Oncol"},{"key":"5140_CR15","doi-asserted-by":"publisher","first-page":"341","DOI":"10.1093\/jjco\/hyae171","volume":"55","author":"S Hashimoto","year":"2025","unstructured":"Hashimoto S, Nonaka T, Tominaga T et al (2025) Surgical risk and cause of death among octogenarian and nonagenarian patients with colorectal cancer: a Japanese multicenter study. Jpn J Clin Oncol 55:341\u2013348","journal-title":"Jpn J Clin Oncol"},{"key":"5140_CR16","doi-asserted-by":"publisher","first-page":"101621","DOI":"10.1016\/j.canep.2019.101621","volume":"63","author":"P Koci\u00e1n","year":"2019","unstructured":"Koci\u00e1n P, Svobodov\u00e1 I, Krej\u010d\u00ed D et al (2019) Is colorectal cancer a more aggressive disease in young patients? A population-based study from the Czech Republic. Cancer Epidemiol 63:101621. https:\/\/doi.org\/10.1016\/j.canep.2019.101621","journal-title":"Cancer Epidemiol"},{"key":"5140_CR17","doi-asserted-by":"publisher","first-page":"43","DOI":"10.1097\/SLE.0b013e3182a2f0f5","volume":"25","author":"T Ojima","year":"2015","unstructured":"Ojima T, Nakamori M, Nakamura M et al (2015) Laparoscopic combined resection of synchronous gastric and colorectal cancer. Surg Laparosc Endosc Percutan Tech 25:43\u201346","journal-title":"Surg Laparosc Endosc Percutan Tech"},{"key":"5140_CR18","first-page":"337","volume":"8","author":"NJ McCleary","year":"2010","unstructured":"McCleary NJ (2010) Treatment considerations in elderly colorectal cancer patients. Clin Adv Hematol Oncol 8:337\u2013339","journal-title":"Clin Adv Hematol Oncol"},{"key":"5140_CR19","doi-asserted-by":"publisher","first-page":"1124","DOI":"10.1007\/s00464-018-6371-1","volume":"33","author":"MJ van der Poel","year":"2019","unstructured":"van der Poel MJ, Tanis PJ, Marsman HA et al (2019) Laparoscopic combined resection of liver metastases and colorectal cancer: a multicenter case-matched study using propensity scores. Surg Endosc 33:1124\u20131130","journal-title":"Surg Endosc"},{"key":"5140_CR20","doi-asserted-by":"publisher","first-page":"4913","DOI":"10.1002\/cam4.4826","volume":"11","author":"Q Chen","year":"2022","unstructured":"Chen Q, Zhang Y, Deng Y et al (2022) Outcomes of simultaneous resection for elderly patients with colorectal liver metastasis: a propensity score matching analysis. Cancer Med 11:4913\u20134926","journal-title":"Cancer Med"},{"key":"5140_CR21","doi-asserted-by":"publisher","first-page":"1534","DOI":"10.3390\/jpm12091534","volume":"12","author":"M Osseis","year":"2022","unstructured":"Osseis M, Nehmeh WA, Rassy N et al (2022) Surgery for T4 colorectal cancer in older patients: determinants of outcomes. J Pers Med 12:1534. https:\/\/doi.org\/10.3390\/jpm12091534","journal-title":"J Pers Med"},{"key":"5140_CR22","doi-asserted-by":"publisher","first-page":"271","DOI":"10.1016\/S0196-6553(05)80201-9","volume":"20","author":"TC Horan","year":"1992","unstructured":"Horan TC, Gaynes RP, Martone WJ, Jarvis WR, Emori TG (1992) CDC definitions of nosocomial surgical site infections, 1992: a modification of CDC definitions of surgical wound infections. Am J Infect Control 20:271\u2013274","journal-title":"Am J Infect Control"},{"key":"5140_CR23","doi-asserted-by":"publisher","first-page":"399","DOI":"10.1080\/00273171.2011.568786","volume":"46","author":"PC Austin","year":"2011","unstructured":"Austin PC (2011) An introduction to propensity score methods for reducing the effects of confounding in observational studies. Multivariate Behav Res 46:399\u2013424","journal-title":"Multivariate Behav Res"},{"key":"5140_CR24","doi-asserted-by":"publisher","first-page":"671","DOI":"10.1002\/jso.26764","volume":"125","author":"PE Serrano","year":"2022","unstructured":"Serrano PE, Parpia S, Karanicolas P et al (2022) Simultaneous resection for synchronous colorectal cancer liver metastases: a feasibility clinical trial. J Surg Oncol 125:671\u2013677","journal-title":"J Surg Oncol"},{"key":"5140_CR25","doi-asserted-by":"publisher","unstructured":"Silveira J\u00fanior S, Tustumi F, Magalh\u00e3es DDP et al (2022) The impact of multivisceral liver resection on short- and long-term outcomes of patients with colorectal liver metastasis: a systematic review and meta-analysis. Clinics (Sao Paulo) 77:100099. https:\/\/doi.org\/10.1016\/j.clinsp.2022.100099","DOI":"10.1016\/j.clinsp.2022.100099"},{"key":"5140_CR26","doi-asserted-by":"publisher","first-page":"2367","DOI":"10.1177\/00031348241244632","volume":"90","author":"HH Kim","year":"2024","unstructured":"Kim HH, Nguyen NH, Yang CJ et al (2024) Outcomes of simultaneous versus staged resection for stage IV colorectal cancer with synchronous liver metastases. Am Surg 90:2367\u20132373","journal-title":"Am Surg"}],"container-title":["International Journal of Colorectal Disease"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00384-026-05140-8","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00384-026-05140-8.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00384-026-05140-8.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T01:02:19Z","timestamp":1782867739000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00384-026-05140-8"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,8]]},"references-count":26,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,12]]}},"alternative-id":["5140"],"URL":"https:\/\/doi.org\/10.1007\/s00384-026-05140-8","relation":{},"ISSN":["1432-1262"],"issn-type":[{"value":"1432-1262","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,5,8]]},"assertion":[{"value":"23 February 2026","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"28 April 2026","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"8 May 2026","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"This study was approved by the institutional review board of Kumamoto University Hospital (Approval No.\n                      1047\n                      ). The requirement for informed consent was waived because of the retrospective nature of the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"108"}}