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Artificial neural network model enhancing the accuracy of clinical evaluation for high-risk population of lymph node metastasis in non-intestinal type early gastric cancer: a multicenter real-world study in China

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机构: [1]Department of Gastric Surgery, Tianjin Medical University Cancer Institute & Hospital. National Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin. Tianjin Key Laboratory of Digestive Cancer. Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, P. R. China. [2]Department of General Surgery, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China [3]Department of Gastrointestinal Surgery, The First Affiliated Hospital of AFMU, Air Force Medical University, Xi’an, 710032, China [4]Department of Gastric Surgery, Sun Yat-Sen University Cancer Center, Guangzhou 510060, China [5]Department of General Surgery, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu 210009, China. [6]Department of Gastric Surgery, Anyang Tumor Hospital, Anyang, Henan, 455000, China [7]Department of Gastrointestinal Surgery, Department of General Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China [8]Department of Gastric Surgical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital (Fujian Branch of Fudan University Shanghai Cancer Center), Fuzhou, Fujian 350000, China [9]Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China [10]Department of Gastric Cancer, Cancer Hospital of Dalian University of Technology (Liaoning Cancer Hospital & Institute), Shenyang, Liaoning, 110801, China [11]Department of Gastrointestinal Surgery, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian, 350015, China [12]Department of General Surgery & Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy/ Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China [13]The Second Department of Gastrointestinal Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China [14]Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang, 150081,China [15]Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial People’s Hospital, Southern Medical University, Guangzhou, Guangdong, 510080, China [16]Department of Esophageal Cancer, Tianjin Medical University Cancer Institute & Hospital. National Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin. Tianjin Key Laboratory of Digestive Cancer. Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, P. R. China.
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关键词: stomach neoplasm lymphatic metastasis risk factors neural networks

摘要:
Recent years have witnessed a proliferation of studies aimed at developing clinical models capable of predicting lymph node metastasis (LNM) in early gastric cancer (EGC), yet tools for prediction grounded in the Lauren classification remain scarce.Data of 6468 patients diagnosed with EGC from fifteen Chinese high-volume cancer centers between January 2005 and December 2015 were retrospectively analyzed. Utilizing multivariate logistic regression analysis and the multilayer perceptron (MLP) prediction algorithm, a nomogram and an artificial neural network (ANN) model were developed and validated, respectively, for predicting the likelihood of LNM in non-intestinal EGC cases. The models' performances were evaluated and a comparative analysis of their parameters was undertaken. Subsequently, in-depth risk stratification analyses were performed around the two models.Non-intestinal type EGC demonstrated an elevated LNM rate and inferior prognosis compared to the intestinal type. Both nomogram and ANN model were developed and performed well in discrimination, calibration and clinical utility. Notably, the ANN model surpassed the nomogram in specificity (95.8% vs. 71.3%, P < 0.001), positive predictive value (PPV) (62.0% vs. 36.2%, P < 0.001) and overall accuracy (82.7% vs. 70.5%, P < 0.001). Patients with different risk strata derived from the nomogram, ANN model, and their combined application exhibited significantly different outcomes. The extent of lymph node dissection significantly influenced prognoses in high-risk patients identified by the combined model, whereas the anatomical location of metastatic lymph nodes did not.The ANN model established in this study can screen the patients at high risk of LNM in non-intestinal type EGC more accurately. Considering the high extragastric LNM rate observed in the high-risk stratum, radical gastrectomy combined with D2 lymph node dissection is strongly recommended.Copyright © 2025 The Author(s). Published by Wolters Kluwer Health, Inc.

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大类 | 2 区 医学
小类 | 2 区 外科
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大类 | 2 区 医学
小类 | 2 区 外科
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第一作者机构: [1]Department of Gastric Surgery, Tianjin Medical University Cancer Institute & Hospital. National Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin. Tianjin Key Laboratory of Digestive Cancer. Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, P. R. China.
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