Front Oncol:胃癌切除术后切缘阳性(PM)患者可推荐术后辅助化疗

2022-02-04 yd2015 MedSci原创

研究表明,胃癌切除术后切缘阳性(PM)患者可推荐术后辅助化疗。

胃癌术后切缘阳性(PM)预后较差。然而,胃癌切除术后切缘阳性(PM)患者的预后因素和术后辅助治疗的选择仍存在争议。因此,北京协和医院团队开展了相关研究,评估术后辅助化疗与胃癌切除术后切缘阳性(PM)患者预后的关系。相关结果发表在Frontiers in Oncology杂志上。

本研究共纳入449例患者,其中PM近端组(PPM) 192例(42.8%),PM远端组(DPM) 205例(45.7%),PM双侧组(BPM) 52例(11.6%)。中位生存时间为23.3个月(范围1-229个月)。PM患者的3年和5年OS率分别为47.5%和39.3%,3年和5年RFS率分别为60.0%和53.6%。

亚组分析发现,PPM、DPM和BPM组之间的OS和DFS没有统计学差异。

多因素分析发现,术后辅助治疗是OS预后因素(HR=0.540,95%CI [0.328-0.888] p=0.015);术后辅助化疗是RFS的预后良好因素(HR=0.315,95%CI [0.189–0.537],p <0.001)。

             OS多因素分析

            RFS多因素分析

多因素分析显示,在PPM亚组中,术后化疗(HR: 0.457, 95%CI: 0.224 0.935, p = 0.032)是OS的保护因素,而术后化疗(HR: 0.215, 95%CI: 0.108 0.428, p<0.001)也是RFS的保护因素。在DPM亚组中,术后化疗(HR: 0.365, 95%CI: 0.144, 0.929, p = 0.035)为RFS的保护因素。但是在 BPM亚组中,术后化疗均不是OS和RFS的预后因素。

随访期间,共有118例(26.3%)患者出现复发。在108例已知复发部位的患者中,39例(36.1%)发生局部复发,52例(48.1%)发生远处复发,17例(15.7%)发生混合复发。主要的局部复发部位为腹膜(29.6%)、局部淋巴结(25.0%)和残余胃(21.3%)。远处复发部位主要为肝脏(23.1%)和锁骨上淋巴结(8.3%)。

综上,研究表明,胃癌切除术后切缘阳性(PM)患者可推荐术后辅助化疗。

原始出处:

Zhang X, Zhao L, Niu P, Wang T, Wang W, Sun C, Li Z, Chen Y and Zhao D (2022) Adjuvant Chemotherapy Might Be Recommended to Patients With Positive Margin After Gastrectomy: A 20-Year Retrospective Analysis in a Single Center. Front. Oncol. 11:794032. doi: 10.3389/fonc.2021.794032

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    2022-07-12 minlingfeng
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    2022-02-09 ms3000000637975859

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