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中华胸部外科电子杂志 ›› 2024, Vol. 11 ›› Issue (01) : 40 -52. doi: 10.3877/cma.j.issn.2095-8773.2024.01.05

论著

第8版肺癌TNM分期亚实性结节T分期建议方案的验证
申磊磊1, 刘有2, 宁浩勇2, 云天洋1, 侯小明3, 郭俊唐4, 梁朝阳4, 刘阳4,()   
  1. 1. 572000 三亚,中国人民解放军总医院海南医院胸外科
    2. 572000 三亚,中国人民解放军总医院海南医院病理科
    3. 100853 北京,中国人民解放军总医院第一医学中心放射诊断科
    4. 100853 北京,中国人民解放军总医院第一医学中心胸外科
  • 收稿日期:2023-11-07 修回日期:2023-12-12 接受日期:2024-02-05 出版日期:2024-02-28
  • 通信作者: 刘阳
  • 基金资助:
    海南省卫生健康行业科研项目(22A200353)

Validation study of the proposals for coding T categories for part-solid nodules in the 8th edition TNM classification of lung cancer

Leilei Shen1, You Liu2, Haoyong Ning2, Tianyang Yun1, Xiaoming Hou3, Juntang Guo4, Chaoyang Liang4, Yang Liu4,()   

  1. 1. Department of Thoracic Surgery, Hainan Hospital of People’s Liberation Army General Hospital, Sanya 572000, China
    2. Department of Pathology, Hainan Hospital of People’s Liberation Army General Hospital, Sanya 572000, China
    3. Department of Radiology, People’s Liberation Army General Hospital, Beijing 100853, China
    4. Department of Thoracic Surgery, People’s Liberation Army General Hospital, Beijing 100853, China
  • Received:2023-11-07 Revised:2023-12-12 Accepted:2024-02-05 Published:2024-02-28
  • Corresponding author: Yang Liu
引用本文:

申磊磊, 刘有, 宁浩勇, 云天洋, 侯小明, 郭俊唐, 梁朝阳, 刘阳. 第8版肺癌TNM分期亚实性结节T分期建议方案的验证[J]. 中华胸部外科电子杂志, 2024, 11(01): 40-52.

Leilei Shen, You Liu, Haoyong Ning, Tianyang Yun, Xiaoming Hou, Juntang Guo, Chaoyang Liang, Yang Liu. Validation study of the proposals for coding T categories for part-solid nodules in the 8th edition TNM classification of lung cancer[J]. Chinese Journal of Thoracic Surgery(Electronic Edition), 2024, 11(01): 40-52.

目的

第8版TNM分期提议影像学实性成分大小[cT(i)]和病理学浸润性成分大小[pT(i)]作为表现为亚实性结节的肺腺癌的临床分期和病理分期大小。目前尚无我国肺癌人群亚实性结节T分期方案的大样本验证研究。本研究旨在验证上述建议方案的临床应用价值。

方法

回顾性收集2013年1月至2021年12月在我院行肺癌根治术的亚实性结节,对比患者影像学的结节直径[cT(t)]、病理直径[pT(t)]、cT(i)和pT(i)这4种不同分期的临床资料和随访结果,采用Kaplan-Meier法分析无疾病生存期(DFS)并行log-rank检验,用Spearman秩相关分析不同类型分期间的相关性,用DeLong检验比较4个分期指标对预后的预测价值。

结果

共纳入624例亚实性结节患者,病理均为腺癌,cT(t)为(26.40±9.76)mm,cT(i)为(18.29±9.77)mm,pT(t)为(20.35±8.19)mm,pT(i)为(14.76±9.71)mm。用pT(i)重新分期后发现187例(30%)从原分期降为pⅠA1(i),pTⅠB(t)中未降期和降期的患者DFS差异有统计学意义(P=0.03,HR=0.18,95%CI:0.04~0.89)。用cT(i)重新分期后发现有152例(24.4%)从原分期降为cⅠA1(i),各组中未降期和降期患者的DFS无统计学差异。pT(i)对DFS的预后价值最好,C指数为0.644;cT(i)的预后价值最差,C指数为0.591。Spearman秩相关分析显示pT(i)和cT(i)存在中等强度的相关性(R=0.529,P<0.001)。

结论

在以亚实性结节为特征的肺腺癌患者中,pT(i)比pT(t)对DFS更有预测价值。cT(i)和pT(i)存在中等强度的相关性,但其预测预后价值偏低。

Objective

In the 8th edition of TNM staging manual, clinical T invasive [cT (i) ] and pathological T invasive [pT (i) ] were proposed as clinical and pathological staging sizes in lung adenocarcinoma manifesting as part-solid nodules. There is no large-sample validation study of the T staging scheme of subsolid nodules in lung cancer population in China. This study aims to verify the clinical application values of the above proposed regimen.

Methods

Patients with part-solid nodules who underwent radical lung cancer resection in our hospital from January 2013 to December 2021 were retrospectively enrolled according to the clinical T total [cT (t) ], pathological T total [pT (t) ], cT (i), and pT (i). The disease-free survival (DFS) was estimated by the Kaplan-Meier method and compared by the log-rank test. Spearman rank correlation was used to analyze the correlation of different T staging manuals, and the predictive value of the four T staging systems on prognosis was compared by DeLong test.

Results

A total of 624 patients with subsolid nodules were enrolled in this study, all of which were adenocarcinoma with an average cT (t) of (26.40±9.76) mm, cT (i) of (18.29±9.77) mm, pT (t) of (20.35± 8.19) mm, and pT (i) of (14.76±9.71 mm. After restaged according to pT (i), 187 (30%) patients were downstaged from the previous stages to pIA1 (i), and there was a statistically significant difference in DFS between patients who were downstaged or not in pTIB (t) (P=0.03, HR=0.18, 95%CI: 0.04~0.89). After restaged according to cT (i), 152 (24.4%) were downstaged from the previous stages to cIA1 (i), and there was no significant difference in DFS between the downstage and same stage patients. The median follow-up was 43 months (7 to 116 months). In the prognostic assessment of DFS, pT (i) had the best prognostic value with a C index of 0.644, and cT (i) had the worst prognostic value with a C index of 0.591. Spearman rank correlation analysis showed moderate-power correlation between pT (i) and cT (i) (R=0.529, P<0.001) .

Conclusions

In patients with part-solid nodules, the pT (i) is more predictive of disease-free survival than the pT (t). There is a moderate-power correlation between the cT (i) and the pT (i), but its predictive prognostic value is relatively low.

图1 研究流程图。GGO:磨玻璃影;CTR:实性成分占比;MIA:微浸润性腺癌
图2 2021年WHO肺腺癌分类的病理学亚型
表1 患者临床基线资料
表2 患者病理资料
图3 病理分期pT重新评估后未降期和降期情况
图4 病理分期pT重新评估后未降期和降期患者的DFS曲线
表3 病理分期pT重新评估情况
图5 临床分期cT重新评估后未降期和降期情况
图6 临床分期cT重新评估后未降期和降期患者的DFS曲线
表4 临床分期cT重新评估情况
图7 不同分期方法下的亚实性结节DFS-KM曲线
图8 不同分期的秩相关热图
表5 不同分期的Spearman秩相关分析
表6 不同分期对预后预测价值的比较
表7 亚实性结节的DFS多因素分析
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