{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T16:02:44Z","timestamp":1791388964091,"version":"4.3.3"},"reference-count":30,"publisher":"Wiley","issue":"24","license":[{"start":{"date-parts":[[2024,12,16]],"date-time":"2024-12-16T00:00:00Z","timestamp":1734307200000},"content-version":"vor","delay-in-days":15,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cancer Medicine"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background and Purpose<\/jats:title><jats:p>The indications of prophylactic extended\u2010field radiotherapy (EFRT) remain uncertain. This study aims to identify the risk factors for para\u2010aortic lymph node (PALN) metastases in locally advanced cervical cancer (LACC) and determine which part of patients may benefit from prophylactic EFRT.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Between January 2015 and July 2023, a single\u2010center retrospective analysis was performed on patients with stages IB3 and IIA2\u2010IVA cervical cancer. Lymph node involvement was assessed using positron emission tomography\/computed tomography (PET\/CT). Risk factors were evaluated by logistic regression. A prediction nomogram model was developed and validated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Among 329 patients, 64 (19.5%) had PALN metastases. Univariate analysis indicated that tumor size &gt;\u20095.3\u2009cm, tumor maximum standardized uptake value (SUVmax) &gt;\u20099.8, bilateral pelvic lymph node (PLN) metastases, the number of positive PLNs \u2265\u20093, and T3\u2013T4 stages were related to PALN metastases. After multivariate logistic analysis, it was found that tumor size &gt;\u20095.3\u2009cm (odds ratio [OR]\u2009=\u20093.129, 95% confidence interval [CI]\u2009=\u20091.536\u20136.374, <jats:italic>p<\/jats:italic>\u2009=\u20090.002), and the number of positive PLNs \u2265\u20093 (OR\u2009=\u200911.260, 95% CI\u2009=\u20093.506\u201336.158, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) were independent risk factors. The C\u2010index of the nomogram was 0.886 (95% CI\u2009=\u20090.844\u20130.927). The calibration plot showed that the nomogram was well\u2010fitted. Decision curve analysis (DCA) exhibited excellent clinical utility.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Tumor size &gt;\u20095.3\u2009cm and the number of positive PLNs \u2265\u20093 are independent risk factors of PALN metastases. The nomogram shows pretty good accuracy, which may provide a valuable reference for guiding patients who are very likely to develop PALN metastases to receive prophylactic EFRT.<\/jats:p><\/jats:sec>","DOI":"10.1002\/cam4.70492","type":"journal-article","created":{"date-parts":[[2024,12,16]],"date-time":"2024-12-16T12:50:45Z","timestamp":1734353445000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Risk Factor Analysis and Prediction of Para\u2010Aortic Lymph Node Metastases in Locally Advanced Cervical Cancer"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-9058-1655","authenticated-orcid":false,"given":"Tinglu","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology The First Affiliated Hospital of Guangxi Medical University  Nanning Guangxi 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