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中华普外科手术学杂志(电子版) ›› 2025, Vol. 19 ›› Issue (05) : 535 -538. doi: 10.3877/cma.j.issn.1674-3946.2025.05.015

所属专题: 文献

论著

新辅助治疗后肿瘤退缩分级对局部进展期直肠癌患者全直肠系膜切除术效果的临床研究
吴少锋1, 王茂1, 马海龙1, 史英2, 代引海1,()   
  1. 1712000 陕西咸阳,陕西中医药大学第二附属医院肿瘤外科
    2712000 陕西咸阳,陕西中医药大学第二附属医院消化科
  • 收稿日期:2024-09-05 出版日期:2025-10-26
  • 通信作者: 代引海

Clinical study on the impact of tumor regression grading after neoadjuvant therapy on the efficacy of TME in patients with locally advanced rectal cancer

Shaofeng Wu1, Mao Wang1, Hailong Ma1, Ying Shi2, Yinghai Dao1,()   

  1. 1Department of Surgical Oncology, the Second Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine, Xianyang Shaanxi Province 712000, China
    2Department of Gastroenterology, the Second Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine, Xianyang Shaanxi Province 712000, China
  • Received:2024-09-05 Published:2025-10-26
  • Corresponding author: Yinghai Dao
  • Supported by:
    Shaanxi Province 2022 Science and Technology Plan Project(2022SF-563); University-Level Project(2020XK06)
引用本文:

吴少锋, 王茂, 马海龙, 史英, 代引海. 新辅助治疗后肿瘤退缩分级对局部进展期直肠癌患者全直肠系膜切除术效果的临床研究[J/OL]. 中华普外科手术学杂志(电子版), 2025, 19(05): 535-538.

Shaofeng Wu, Mao Wang, Hailong Ma, Ying Shi, Yinghai Dao. Clinical study on the impact of tumor regression grading after neoadjuvant therapy on the efficacy of TME in patients with locally advanced rectal cancer[J/OL]. Chinese Journal of Operative Procedures of General Surgery(Electronic Edition), 2025, 19(05): 535-538.

目的

研究新辅助治疗后肿瘤退缩分级对局部进展期直肠癌全直肠系膜切除术的患者手术质量及预后影响。

方法

回顾性分析2020年1月至2024年3月接受全程新辅助治疗(TNT)+腹腔镜全直肠系膜切除术(TME)的92例局部进展期直肠癌(LARC)患者的临床资料。应用Dowrak/Rödel TRG(5等级)标准,依据肿瘤区域纤维化比例,≤50%(TRG0-TRG2)为肿瘤退缩较差组(n=54);>50%(TRG3-TRG4)为肿瘤退缩良好组(n=38)。采用SPSS 27.0统计学软件分析数据,围手术期指标等符合正态分布的计量资料以(±s)表示,行独立样本t检验;计数资料以[例(%)]表示,行χ2检验;应用Kaplan-Meier绘制生存曲线,以Log-Rank检验分析生存情况。P<0.05为差异有统计学意义。

结果

两组患者手术时间、首次排气时间、住院时间、并发症总发生率比较,差异无统计学意义(P>0.05);退缩良好组患者淋巴结清扫数目和术中出血量均少于退缩较差组(P<0.05);退缩良好组患者2年无病生存率高于退缩较差组(94.7% vs. 75.9%, P<0.05);退缩良好组与退缩较差组患者总生存率对比,差异无统计学意义(97.4% vs. 94.4%, P>0.05)。

结论

TNT后接受腹腔镜TME的LARC患者,肿瘤退缩中区域纤维化占比高于50%的患者术中出血量与淋巴结清扫数目更少,术后无病生存率更高。

Objective

To investigate the impact of tumor regression grade (TRG) after neoadjuvant therapy on surgical quality and prognosis in patients with locally advanced rectal cancer (LARC) undergoing total mesorectal excision (TME).

Methods

A retrospective analysis was performed on the clinical data of 92 LARC patients who received total neoadjuvant therapy (TNT) plus laparoscopic TME from January 2020 to March 2024. According to the Dowrak/Rödel TRG (5-grade) standard, patients were divided into poor regression group (n=54, ≤50% fibrosis in tumor area, TRG0-TRG2) and good regression group (n=38, >50% fibrosis, TRG3-TRG4). Data were analyzed using SPSS 27.0. Normally distributed measurement data (perioperative indicators, etc.) were expressed as (±s) and compared by independent sample t test; enumeration data were expressed as [cases (%)] and analyzed by χ2 test. Survival curves were plotted by Kaplan-Meier method, and survival differences were evaluated by Log-Rank test. P<0.05 was considered statistically significant.

Results

There were no significant differences in operation time, first flatus time, hospital stay, or total complication rate between the two groups (P>0.05). The good regression group had fewer dissected lymph nodes and less intraoperative blood loss than the poor regression group (P<0.05). The 2-year disease-free survival rate was significantly higher in the good regression group than in the poor regression group (94.7% vs. 75.9%, P<0.05), while there was no significant difference in overall survival rate between the two groups (97.4% vs. 94.4%, P>0.05).

Conclusion

In LARC patients receiving laparoscopic TME after TNT, those with tumor regression showing >50% regional fibrosis have less intraoperative blood loss, fewer dissected lymph nodes, and a higher disease-free survival rate.

表1 两组LARC患者一般资料比较
表2 两组LARC患者围手术期指标对比(±s
表3 两组LARC患者并发症发生率对比[例(%)]
图1 两组LARC患者的Kaplan-Meier生存曲线分析注:A为累计无病生存率对比;B为累计总生存率对比
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