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胃癌D2激进手术后复发的模式:术后放射治疗的影响

Wenheng Jiang¹, Haohua Wang², Xiang Zhang¹

¹Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.

Practical radiation oncology

|March 20, 2025

概括

胃癌 (GC) 的D2淋巴切除术后的辅助辐射疗法可能有利于选择患者. 分析复发模式有助于确定最佳辐射目标,并识别高风险个体以改善结果.

科学领域:

手术瘤学手术瘤学
辐射瘤学辐射瘤学
胃肠道癌症研究研究

背景情况:

D2淋巴切除术是胃癌 (GC) 的标准.
鉴定术后受益于辅助放射治疗 (ART) 的患者至关重要.
了解复发模式可以为治疗优化提供信息.

研究的目的:

评估GC的D2淋巴切除术后ART的作用.
确定从ART中受益最多的患者子组.
根据复发性分析定义ART的最佳目标体积.

主要方法:

对1169名患有I-III阶段GC的D2手术患者的回顾性分析.
检查整体和区域复发模式,包括淋巴结站16垂直分布.
多变量后勤回归用于识别局部区域性故障 (LRF) 风险因素和名ogram开发/验证.

主要成果:

腹膜衰竭是最常见的复发 (29.8%),其次是远程转移 (23.1%) 和LRF (20.0%).
淋巴结站7,8,9,11p,12,13,16a,和16b显示高复发率 (>10%),其中16站是最常见的.
病态T类 (3-4) 和淋巴结比率 (>25%) 是独立的LRF风险因素;一个名图实现了0.79.7的AUC.

结论:

在为GC进行D2淋巴切除术后的复发模式表明,特定的患者亚组可能从ART中受益.
对复发地点的洞察力,特别是16号站,有助于确定最佳辐射目标体积.
使用T类和淋巴结比率的风险分层可以指导ART决策.

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