Hyunwook Kim , Lingjie Shen , Jeongseok Jeon , Yoon Dae Han , Dai Hoon Han , Minsun Jung , Seo Jeong Shin , Seng Chan You , Nam Kyu Kim , Byung Soh Min , Hyuk Hur , Joong Bae Ahn , Sang Joon Shin , Anna Jacoba van Gestel , Felice N. van Erning , Gijs Geleijnse , Han Sang Kim
{"title":"Number of Lymph Nodes Examined as a Prognosis Factor in Patients With Stage II or III Colon Cancer","authors":"Hyunwook Kim , Lingjie Shen , Jeongseok Jeon , Yoon Dae Han , Dai Hoon Han , Minsun Jung , Seo Jeong Shin , Seng Chan You , Nam Kyu Kim , Byung Soh Min , Hyuk Hur , Joong Bae Ahn , Sang Joon Shin , Anna Jacoba van Gestel , Felice N. van Erning , Gijs Geleijnse , Han Sang Kim","doi":"10.1016/j.clcc.2025.02.004","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Lymph node (LN) examination is important for staging colorectal cancer. Examining < 12 LN has been associated with a poor prognosis. However, surgical and pathological advances have led to increase examined LN, necessitating the reassessment of the best cutoff for prognosis.</div></div><div><h3>Patients and Methods</h3><div>We reviewed patients with stage II–III colon cancer from the Yonsei Cancer Center Registry (YCC) database and the Netherlands Cancer Registry (NCR). The optimal LN cutoff was determined by comparison with hazard ratio (HR) in 12 LN. We compared higher vs. lower LN cutoff effects on a 6-year overall survival (OS).</div></div><div><h3>Results</h3><div>From 2005 to 2015, the proportion with < 12 LN decreased significantly (<em>P</em> < .001). There was no significant association between 6-year OS and LN yield in all stages II–III patients (HR = 1.21, <em>P</em> = .116), stage II (HR = 1.39, <em>P</em> = .068), and stage III (HR = 1.18, <em>P</em> = .297) colon cancer based on the standard 12 LN examined, whereas the 20 LN cutoff examined was associated with a significant increase in 6-year OS in all patients (HR = 1.51, <em>P</em> < .001). Multivariate regression revealed a significant decrease in 6-year OS in stage II (HR = 1.39, <em>P</em> = .026) and stage III (HR = 1.47, <em>P</em> < .001) with < 20 LN yield. In the NCR, < 20 LN was associated with poorer 6-year OS in stage II–III patients (HR = 1.25, <em>P</em> < .001), stage II (HR = 1.43, <em>P</em> < .001), and stage III (HR = 1.13, <em>P</em> = .007).</div></div><div><h3>Conclusion</h3><div>Over the past decade, inadequate LN examinations have significantly decreased. Compared to < 12 LN, < 20 LN examined is more associated with a worse prognosis in patients who underwent surgery.</div></div>","PeriodicalId":10373,"journal":{"name":"Clinical colorectal cancer","volume":"24 2","pages":"Pages 280-289.e4"},"PeriodicalIF":3.3000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical colorectal cancer","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1533002825000258","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Lymph node (LN) examination is important for staging colorectal cancer. Examining < 12 LN has been associated with a poor prognosis. However, surgical and pathological advances have led to increase examined LN, necessitating the reassessment of the best cutoff for prognosis.
Patients and Methods
We reviewed patients with stage II–III colon cancer from the Yonsei Cancer Center Registry (YCC) database and the Netherlands Cancer Registry (NCR). The optimal LN cutoff was determined by comparison with hazard ratio (HR) in 12 LN. We compared higher vs. lower LN cutoff effects on a 6-year overall survival (OS).
Results
From 2005 to 2015, the proportion with < 12 LN decreased significantly (P < .001). There was no significant association between 6-year OS and LN yield in all stages II–III patients (HR = 1.21, P = .116), stage II (HR = 1.39, P = .068), and stage III (HR = 1.18, P = .297) colon cancer based on the standard 12 LN examined, whereas the 20 LN cutoff examined was associated with a significant increase in 6-year OS in all patients (HR = 1.51, P < .001). Multivariate regression revealed a significant decrease in 6-year OS in stage II (HR = 1.39, P = .026) and stage III (HR = 1.47, P < .001) with < 20 LN yield. In the NCR, < 20 LN was associated with poorer 6-year OS in stage II–III patients (HR = 1.25, P < .001), stage II (HR = 1.43, P < .001), and stage III (HR = 1.13, P = .007).
Conclusion
Over the past decade, inadequate LN examinations have significantly decreased. Compared to < 12 LN, < 20 LN examined is more associated with a worse prognosis in patients who underwent surgery.
期刊介绍:
Clinical Colorectal Cancer is a peer-reviewed, quarterly journal that publishes original articles describing various aspects of clinical and translational research of gastrointestinal cancers. Clinical Colorectal Cancer is devoted to articles on detection, diagnosis, prevention, and treatment of colorectal, pancreatic, liver, and other gastrointestinal cancers. The main emphasis is on recent scientific developments in all areas related to gastrointestinal cancers. Specific areas of interest include clinical research and mechanistic approaches; drug sensitivity and resistance; gene and antisense therapy; pathology, markers, and prognostic indicators; chemoprevention strategies; multimodality therapy; and integration of various approaches.