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SUVmax对≤2cm IA期腺癌切除策略复发风险的影响

  • 2026-07-26 21:52:18
SUVmax对≤2cm IA期腺癌切除策略复发风险的影响

Impact of High SUVmax on Recurrence by Resection Strategy in Stage IA Adenocarcinoma ≤2 cm

基本信息

影响因子:(Annals of Thoracic Surgery, IF: 5.3)

作者/机构:Jacob Guorgui, Jeremiah Hutson, Joseph Shrager等;美国Stanford大学胸外科

DOI:https://doi.org/10.1016/j.athoracsur.2026.06.049

研究类型:单中心回顾性队列研究(2005-2024年)

发表时间:2026年(接收日期:2026年6月23日)

核心信息:这项来自Stanford大学的研究纳入558例≤2cm IA期肺腺癌患者(309例肺叶切除,249例亚肺叶切除),通过最大选择秩统计法确定SUVmax最佳截断值为3.0。高SUVmax(≥3.0)是亚肺叶切除后复发的独立预测因子(OR 3.16),尤其在楔形切除中更为显著(OR 4.18)。高SUV组中,亚肺叶切除的5年DFS显著差于肺叶切除(62.5% vs 78.7%,P=0.022);而低SUV组中两种术式无差异。这提示SUVmax≥3的肿瘤应慎重考虑切除策略,尤其是避免楔形切除。

总样本量

558例

IA期腺癌≤2cm

肺叶切除

309例

55.4%

亚肺叶切除

249例

楔形195/肺段54

SUVmax阈值

3.0

最佳截断值

英文摘要

Background: High maximum standard uptake value (SUVmax) is associated with recurrence after NSCLC resection, but whether it should impact the lobectomy vs. sublobar decision for Stage IA adenocarcinoma ≤2cm is unclear. We examined the value of SUVmax in guiding resection strategy.

Methods: Retrospective single-center review (2005–2024) of clinical Stage IA adenocarcinoma ≤2cm with preoperative PET who underwent lobectomy or sublobar resection. The optimal SUVmax threshold for recurrence-free survival was identified using maximally-selected rank statistics and used to categorize patients into high and low SUV groups. Primary outcomes were recurrence and disease-free survival (DFS); secondary outcomes were overall (OS) and cancer-specific survival (CSS).

Results: Among 558 patients (309 lobectomy; 249 sublobar), recurrence occurred in 28 (9.1%) and 34 (13.7%), respectively. The optimal SUVmax cut-off was 3.0. On multivariate analysis, high SUVmax was an independent predictor of recurrence in both the entire cohort [OR: 2.29 (1.17–4.50), p=0.02] and the sublobar group [OR: 3.16 (1.19–8.44), p=0.02]. Among wedge resections alone, high SUV remained an independent predictor of recurrence [OR: 4.18 (1.44–12.48); p=0.01]. In the high SUV group, DFS was inferior after sublobar vs lobar resection (62.5% vs 78.7%; p=0.022), while no DFS difference was seen between procedures among low SUV patients. OS and CSS did not differ by strategy within either SUV category.

Conclusions: SUVmax ≥3 independently predicted recurrence after sublobar resection, with findings driven primarily by the wedge resection subgroup. This suggests careful consideration of resection strategy, particularly wedge resection, for Stage IA tumors with SUVmax ≥3.

中文摘要

背景:高最大标准摄取值(SUVmax)与NSCLC切除后复发相关,但其是否应影响≤2cm IA期腺癌的肺叶切除vs亚肺叶切除决策尚不明确。本研究评估了SUVmax在指导切除策略中的价值。

方法:回顾性单中心研究(2005-2024年),纳入有术前PET的≤2cm临床IA期腺癌患者,行肺叶切除或亚肺叶切除。采用最大选择秩统计法确定无复发生存的最佳SUVmax阈值,将患者分为高SUV组和低SUV组。主要终点为复发和无病生存期(DFS);次要终点为总生存期(OS)和癌症特异性生存期(CSS)。

结果:558例患者中(309例肺叶切除,249例亚肺叶切除),复发率分别为9.1%和13.7%。最佳SUVmax截断值为3.0。多变量分析中,高SUVmax是整个队列[OR 2.29 (1.17-4.50),P=0.02]和亚肺叶组[OR 3.16 (1.19-8.44),P=0.02]复发的独立预测因子。在单独楔形切除中,高SUV仍是复发的独立预测因子[OR 4.18 (1.44-12.48),P=0.01]。高SUV组中,亚肺叶切除的DFS差于肺叶切除(62.5% vs 78.7%,P=0.022),而低SUV组中两种术式无差异。两种SUV类别中,OS和CSS均无差异。

结论:SUVmax≥3是亚肺叶切除后复发的独立预测因子,该发现主要由楔形切除亚组驱动。这提示对于SUVmax≥3的IA期肿瘤,应慎重考虑切除策略,尤其是楔形切除。

文献解读

核心结论:在558例≤2cm IA期肺腺癌中,SUVmax≥3.0是亚肺叶切除后复发的独立预测因子,尤其在楔形切除中更为显著(OR 4.18)。高SUVmax患者中,亚肺叶切除的5年DFS显著差于肺叶切除(62.5% vs 78.7%),而低SUVmax患者中两种术式无差异。临床建议:SUVmax≥3的肿瘤应慎重考虑楔形切除,优先选择肺叶切除。

研究设计

  • 研究类型:
    单中心回顾性队列研究(Stanford大学,2005-2024年)
  • 纳入标准:
    临床IA期腺癌≤2cm(TNM第8版),有术前PET检查,行肺叶切除或亚肺叶切除
  • 排除标准:
    无术前PET(n=42)、PET报告无SUVmax值(n=69)、类癌肿瘤、新辅助治疗、同步原发肿瘤等
  • 分组:
    肺叶切除309例(55.4%)、亚肺叶切除249例(44.6%,其中楔形195例、肺段54例)
  • SUVmax阈值确定:
    最大选择秩统计法(在每一个可能的SUV阈值处进行log-rank检验,找到最佳区分点)
  • 主要终点:
    复发和无病生存期(DFS)

高SUV亚肺叶5年DFS

62.5%

vs 肺叶切除 78.7%

低SUV亚肺叶5年DFS

87.9%

vs 肺叶切除 86.8%

楔形切除复发OR

4.18

高SUV vs 低SUV

基线特征比较

特征
肺叶切除(n=309)
亚肺叶切除(n=249)
P值
平均SUVmax
3.61
2.40
<0.001
平均肿瘤大小
1.13 cm
0.89 cm
<0.001
总复发率
9.1%
13.7%
NS
局部复发率
2.9%
7.6%
0.092
楔形切除局部复发
8.2%
SUVmax≥3比例
44.7%
25.6%
<0.001

关键发现:肺叶切除组的平均SUVmax更高(3.61 vs 2.40),提示外科医生可能已在某种程度上根据SUVmax选择术式。亚肺叶切除组的局部复发率更高(7.6% vs 2.9%),其中楔形切除贡献了84%的局部复发。

高SUVmax与高危病理特征的关系

高危病理特征
OR值
P值
淋巴结升期8.40
<0.001
低分化组织学5.13
<0.001
脏层胸膜侵犯3.95
<0.001
实性组织学4.40
<0.001

关键发现:高SUVmax与多种高危病理特征强相关。值得注意的是,17.8%的高SUV患者为以实性为主组织学,而该类型仅占整个队列的2.5%。高SUVmax肿瘤具有4倍以上的实性组织学几率,55%更低的以贴壁为主组织学几率。

复发多变量分析

变量
全部队列
OR (95% CI)
亚肺叶组
OR (95% CI)
楔形切除组
OR (95% CI)
高SUVmax(≥3)2.29 (1.17-4.50)3.16 (1.19-8.44)4.18 (1.44-12.48)
切缘充分
保护性保护性
N2分期
显著显著显著
淋巴结采样站数
保护性保护性

关键发现:高SUVmax在全部队列、亚肺叶组和楔形切除组中均是复发的独立预测因子,且OR值呈递增趋势(2.29→3.16→4.18),提示楔形切除在高SUVmax肿瘤中的风险最高。肺段切除组因复发事件过少(仅2/14例高SUV患者复发)未进行多变量分析。

生存分析:高SUVmax组

结局
肺叶切除
亚肺叶切除
P值
5年DFS78.7%62.5%0.022
5年DFS (楔形vs肺叶)
78.7%58.0%0.008
5年DFS (肺段vs肺叶)
78.7%
0.975 (NS)
5年OS
86.9%
83.5%
0.60 (NS)
5年CSS
92.7%
94.3%
0.746 (NS)

关键发现:在高SUVmax患者中,亚肺叶切除(尤其是楔形切除)的5年DFS显著差于肺叶切除。但OS和CSS无显著差异,可能与该队列整体高生存率有关。肺段切除与肺叶切除之间DFS无差异,但样本量过小(仅14例高SUV肺段切除)。

低SUVmax组(SUVmax<3.0):在低SUVmax患者中,肺叶切除和亚肺叶切除在DFS(87.9% vs 86.8%,P=0.271)、OS(90.9% vs 94.3%,P=0.584)和CSS(96.9% vs 97.8%,P=0.794)方面均无显著差异。这支持了CALGB 140503和JCOG0802两项RCT的结论——对于低SUVmax的小肿瘤,亚肺叶切除是安全的选择。

SUVmax vs 实性成分比例

一个重要的争论是:SUVmax是否仅反映了结节的实性vs非实性性质,而外科医生已在考虑这一点?

  • 高SUVmax肿瘤具有4倍以上的实性为主组织学几率
  • 50%的队列为亚实性肿瘤
  • 但当实性百分比作为连续变量纳入多变量模型时,高SUVmax仍是亚肺叶和楔形切除后复发的唯一显著预测因子
  • SUVmax可能比"实性百分比"更易量化和标准化报告
  • 注意:
    SUV摄取在<1cm肿瘤中可能不够稳健(仅15%的高SUVmax肿瘤<1cm),因此该截断值可能更适用于≥1cm的肿瘤

临床意义与启示

对临床实践的指导意义:

  • SUVmax≥3作为术前风险分层工具:
    SUVmax是术前 readily available 的指标,可用于指导≤2cm IA期腺癌的切除策略选择
  • 高SUVmax(≥3)应优先选择肺叶切除:
    尤其是避免楔形切除,因为高SUVmax楔形切除的5年DFS仅58.0%,显著差于肺叶切除的78.7%
  • 低SUVmax(<3)可安全行亚肺叶切除:
    DFS、OS和CSS均无差异,支持CALGB 140503和JCOG0802的结论
  • 肺段切除的地位:
    高SUVmax肺段切除与肺叶切除的DFS无显著差异,但样本量过小(仅14例),需更大样本验证
  • 标准化报告的重要性:
    强调PET报告中应系统报告SUVmax数值,而非定性描述

研究优势与局限性

优势:

  • 使用最大选择秩统计法确定最佳SUVmax截断值,优于既往研究的事先设定截断值
  • 大样本量(558例),足够的统计效能
  • 单独分析了楔形切除和肺段切除,揭示了楔形切除的特殊风险
  • 校正了实性百分比,证明SUVmax的独立预后价值
  • 长期随访(中位37.2个月),73.3%患者达到指南一致的随访

局限性:

  • 回顾性单中心设计,可能存在选择偏倚
  • 并非所有PET扫描在同一机构进行
  • 肺段切除组样本量过小(仅54例,其中高SUV仅14例)
  • 未能检测OS和CSS的差异(可能因整体高生存率)
  • 未评估SUVmax相对于CT指标(如实变/肿瘤比)的增量效果
  • SUVmax在<1cm肿瘤中的可靠性有限

总结:这项来自Stanford大学的研究,使用迄今为止最大的美国队列,为SUVmax在术前风险分层和切除策略中的临床实用性提供了实质性证据。通过最大选择秩统计法确定SUVmax≥3.0为最佳截断值,该阈值是亚肺叶切除后复发的独立预测因子,尤其在楔形切除中更为显著(OR 4.18)。临床建议:对于SUVmax≥3的≤2cm IA期腺癌,应慎重考虑楔形切除,优先选择肺叶切除;对于SUVmax<3的肿瘤,亚肺叶切除是安全的选择。

参考文献:Guorgui J, Hutson J, Kamtam D, et al. Impact of High SUVmax on Recurrence by Resection Strategy in Stage IA Adenocarcinoma ≤2 cm. Ann Thorac Surg. 2026; doi:10.1016/j.athoracsur.2026.06.049

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  1. CONNECT:[ UseTime:0.001224s ] mysql:host=127.0.0.1;port=3306;dbname=e_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001689s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005254s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002860s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000940s ]
  6. SELECT * FROM `set` [ RunTime:0.037203s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001421s ]
  8. SELECT * FROM `article` WHERE `id` = 532480 LIMIT 1 [ RunTime:0.015247s ]
  9. UPDATE `article` SET `lasttime` = 1785655928 WHERE `id` = 532480 [ RunTime:0.010033s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.033280s ]
  11. SELECT * FROM `article` WHERE `id` < 532480 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.036385s ]
  12. SELECT * FROM `article` WHERE `id` > 532480 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.047475s ]
  13. SELECT * FROM `article` WHERE `id` < 532480 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.047745s ]
  14. SELECT * FROM `article` WHERE `id` < 532480 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.019686s ]
  15. SELECT * FROM `article` WHERE `id` < 532480 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.041031s ]
0.522004s