J Gastroenterology:术后辅助化疗对直肠癌与结肠癌的复发危险性的比较

2021-03-06 MedSci原创 MedSci原创

对于患有III期结肠癌,根治性切除后的辅助化疗是提高无病生存(DFS)和总生存期最行之有效的方法。

      对于患有III期结肠癌,根治性切除后的辅助化疗是提高无病生存(DFS)和总生存期最行之有效的方法。然而,相比于结肠癌的具有较高的局部和远处复发率,对于直肠癌患者辅助化疗的疗效是有争议的。很少有研究评估辅助化疗在直肠癌患者中的作用,因为其作用尚不明确。因此,尚不清楚根治性切除术后辅助化疗是否会降低直肠癌患者的复发率或死亡率。这项研究的目的是比较辅助化疗状态下III期直肠癌和结肠癌的复发风险。

 

 

      这项全国性的回顾性研究的受试者由1997年1月至2012年12月在日本进行根治性切除的10356例III期结直肠癌患者组成。研究人员在接受辅助化疗的患者与未接受辅助化疗的患者之间比较了直肠癌和结肠癌的复发危险。还进行了将复发分为局部和远处复发进行了进一步分析。

 

 

 

      与未接受辅助化疗的患者相比,接受辅助化疗的直肠癌患者的复发危险率在整个随访期间一直较低,并且复发的高峰时间较未接受辅助化疗的患者低(分别为15.7和7.1个月)。在直肠癌患者中,辅助化疗还可以强烈抑制远处复发,但不能抑制局部复发。在结肠癌患者中观察到相似的结果。

 

 

      本项研究发现与结肠癌患者观察到的情况相似,辅助化疗延迟了III期直肠癌患者的复发风险并抑制了远处复发。

 

 

 

原始出处:

Yuka Ahiko. Et al. Recurrence hazard of rectal cancer compared with colon cancer by adjuvant chemotherapy status: a nationwide study in Japan.Journal of Gastroenterology.2021.

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    2021-06-10 许安
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