纵隔淋巴结清除范围对Ⅰ期非小细胞肺癌患者的影响

目的:比较不同纵隔淋巴结清除范围对Ⅰ期非小细胞肺癌(NSCLC)患者生存的影响。方法:回顾性分析97例手术切除的Ⅰ期NSCLC患者临床资料,比较纵隔淋巴结清除术(SML)与纵隔淋巴结采样术(LS)对于患者生存的影响。用Kaplan-Meier曲线及Log-rank检验进行生存分析和比较,并用Cox多因素回归分析了解与生存相关的因素。结果:行SML的患者(n=28)5年生存率优于行LS的患者(n=69;84.36%vs68.54%;P=0.025)。Cox多因素分析提示,行SML是影响患者预后的因素。结论:肺叶切除加上SML能提高Ⅰ期NSCLC患者的长期生存率,可列为NSCLC的规范性术式。     

899例非小细胞肺癌完全切除术后的多因素生存分析

背景与目的:非小细胞肺癌non-small cell lung cancer,NSCLC)的多学科治疗已有十多年.诊断技术及治疗策略的改进有可能导致NSCLC的预后影响因素的改变.本文探讨NSCLC完全切除术后的预后影响因素.方法:收集1997年1月～2001年4月行完全切除术的899例NSCLC病例资料及随访资料.采用Kaplan-Meier进行生存分析.Cox模型进行多因素生存分析.结果:全组5年生存率为43.5%,中位生存期48个月.其中ⅠA期、ⅠB期、ⅡA期、ⅡB期、ⅢA期、ⅢB期、Ⅳ期的5年生存率分别为81.0%、60.3%、56.9%、45.7%、23.5%、20.8%、13.0%;单因素分析显示T分期、N分期、M分期、组织学类型、组织分化、腺癌Ⅱ期及Ⅳ期化疗、腺癌N2期术后纵隔放疗为预后影响因素;多因素分析显示组织学类型、T分期、N分期、M分期及腺癌N2期术后纵隔放疗是NSCLC独立预后因素.结论:除T分期、N分期、M分期外,组织学类型及腺癌N2期术后纵隔放疗也是完全切除NSCLC的独立预后因素.     

ⅠB期非小细胞肺癌的预后影响因素

目的:研究影响ⅠB期非小细胞肺癌预后的因素.方法:手术治疗的67例ⅠB期非小细胞肺癌患者,均被手术病理证实为T2N0,并接受了系统淋巴结清扫术或淋巴结采样术.共392枚淋巴结被切除,201站纵隔淋巴结被清扫(上纵隔组103站,下纵隔组98站).生存分析采用Kaplan-Meier方法,采用Cox回归模型进行多因素分析.结果:67例患者中有8例死亡,2年生存率为88.4%.Cox多因素分析提示:纵隔淋巴结清扫站数≥3站者的预后优于纵隔淋巴结清扫站数＜3站者(P=0.041);原发灶≤4cm患者预后优于原发灶＞4cm患者(P=0.016),被切除的淋巴结总数、脏层胸膜受累情况、术后化疗情况、原发灶所在部位、性别及年龄等因素与患者预后没有显著的相关性.结论:增加术中纵隔淋巴结清扫站数对改善ⅠB期非小细胞肺癌的预后可能有益;原发灶＞4cm ⅠB期非小细胞肺癌患者的预后不佳,可能更适宜于接受进一步的术后治疗.     

ⅢA-N2期非小细胞肺癌外科治疗的预后分析

目的 探讨ⅢA-N2期非小细胞肺癌(NSCLC)患者经外科治疗的预后及其影响因素.方法 收集北京大学第一医院胸外科2003年1月至2007年4月期间行肺癌根治术、术后病理证实为ⅢA-N2期NSCLC的89例患者的临床资料,随访术后生存状况,计算术后3年和5年生存率.采用Cox模型对预后影响因素进行单因素和多因素分析.结果 89例ⅢA-N2期NSCLC患者,肺癌根治术后中位生存时间为39个月,3年和5年生存率分别为51.7％和31.5％.Cox模型单因素分析结果显示,年龄、T分期、淋巴血管侵犯(LVI)、N2阳性淋巴结数目和N2淋巴结转移站数是影响预后的危险因素.按年龄分层分析提示,上述预后危险因素的影响在年龄≥55岁者中尤为显著.Cox模型多因素分析显示,T分期(T3/T1)、LVI和N2淋巴结转移站数是ⅢA-N2期NSCLC患者术后生存的独立影响因素,T3期、LVI阳性和N2多站淋巴结转移的患者预后较差.结论 T3期、LVI、N2阳性淋巴结站数是影响ⅢA-N2期NSCLC患者根治术后生存的重要因素.     

不同淋巴结清扫范围对Ⅲ期食管癌患者术后生存的影响

目的 探讨不同淋巴结清扫范围对Ⅲ期胸中段食管痛患者牛存率的影响,评价其安全性及可行性.方法 收集122例行完全性切除术的Ⅲ期胸中段食管癌患者的临床和随访资料,按照手术方式分为二野淋巴结清扫组(62例)和二野淋巴结清扫组(60例).采用寿命表法比较两组患者的牛存率,Kaplan-Meier法单因素分析全组患者凶病理分期、淋巴结清扫方式等不同而产生的生存差异,Cox多因素分析影响患者生存的主要因素.结果 两组患者的一般资料具有可比性.二野和三野淋巴结清扫组患者的并发症发生率分别为14.5%和15.0%,围手术期死亡率分别为1.6%和1.7%,差异均无统计学意义(均P＞0.05).二野淋巴结清扫组患者的术后1、3、5年生存率分别为78.2%、39.6%和14.5%,中位生存期为24个月;三野淋巴结清扫组患者的术后1、3、5年生存率分别为83.7%、42.4%和18.1%,中位生存期为31个月.在122例Ⅲ期胸中段食管癌患者中,术前体重下降不明显、术后病理分期为T3N1M0、仅有1个区域淋巴结转移且淋巴结转移数＜3枚、行三野淋巴结清扣术的患者预后较好(P＜0.05).多因素分析显示,T分期、N分期和淋巴结清扫方式是影响Ⅲ期胸中段食管癌患者预后的危险因素(P＜0.05).结论 三野淋巴结清扫能提高Ⅲ期胸中段食管癌患者的生存率,且并未增加并发症的发生率和围手术期死亡率,是安全可行的.     

可完全切除的ⅢA期非小细胞肺癌的预后与治疗策略建议

背景与目的:可完全切除ⅢA期非小细胞肺癌(non-small cell lung cancer, NSCLC)术后复发转移具有多样性,多学科治疗及临床试验结果未能很好诠释治疗和病理因素对预后的影响.本文对完全切除ⅢA期NSCLC进行生存分析、评估病理因素及治疗手段对预后的作用.方法:收集1997年1月1日-2001年4月30日施行完全切除术的271例ⅢA期NSCLC连续病例的临床及随访资料,随访至2006年3月31日,采用SPSS13.0 for Windows的Kaplan-Meier进行生存分析,Cox比例风险模型进行多因素生存分析.结果:全组的3年、5年生存率分别为37.63%,23.48 %, 中位生存期为28个月.单因素分析显示不同的组织学类型(χ2=3.984,P=0.046),肿瘤分化(χ2=6.843,P=0.033),N分期(χ2=4.578,P=0.032),腺癌纵隔放疗(χ2=4.459,P=0.035)的生存差异有显著性;多因素分析仅腺癌纵隔放疗与否的生存差异有显著性.结论:组织类型、肿瘤分化、N分期是完全切除ⅢA期NSCLC预后的影响因素,腺癌纵隔放疗是独立的预后因素,有必要对预后影响因子进行干预以延长患者的生存.     

术后辅助放疗对ⅢA-N2期非小细胞肺癌的疗效探讨

目的 探讨术后辅助放疗对ⅢA-N2期非小细胞肺癌的疗效.方法 136例经病理学检查确诊为ⅢA-N2期的非小细胞肺癌患者,均行根治性手术及术后辅助化疗,辅助化疗后75例观察(A组),61例行辅助放疗(B组).结果 A组、B组1年总生存率分别为90.7%和98.4%,3年总生存率分别为41.2%和48.7%,5年总生存率分别为30.8%和33.7%(P=0.039).A组、B组1年无复发生存率分别为87.7%和95.1%,3年无复发生存率分别为59.9%和73.1%,5年无复发生存率分别为47.9%和65.8%(P=0.040).单因素生存分析提示:吸烟、临床N2期、T分期、阳性淋巴结个数、阳性淋巴结比例、N2淋巴结累及区域、辅助化疗疗程、行术后辅助放疗为预后因素.多因素生存分析提示:临床N2期、T分期、阳性淋巴结个数、行术后辅助放疗为独立预后因素.结论 ⅢA-N2期非小细胞肺癌中,术前临床诊断为N2期、T分期越晚、手术切除阳性淋巴结个数越多,预后越差;行术后放疗可提高局控率,延长总生存时间.     

Ⅲ期N2非小细胞肺癌的外科治疗

目的：探讨Ⅲ期N2非小细胞肺癌（NSCLC）患者外科治疗的疗效及影响预后的因素。方法：回顾性分析1982－1996年手术治疗的266例Ⅲ期N2 NSCLC患者的5年生存率,与同期手术的N0、N1患者做比较,用Cox模型分析病理分型、淋巴结转移数目、淋巴结转移区域、手术方式、T状态、手术性质等对N2的NSCLC患者预后的影响。结果：266例Ⅲ期N2的NSCLC患者的5年生存率为17．3％,明显低于同期N0、N1患者的5年生存率（51．4％和30．4％）,淋巴结转移数目、淋巴结转移区域、T状态、手术性质为影响预后的重要因素。结论：对单区域纵隔淋巴结转移且估计能完全切除的Ⅲ期N2（特别是T1）NSCLC应采取以手术为主的综合治疗。     

ⅢA(N2)期非小细胞肺癌完全切除术后影响预后和局部复发的因素

非小细胞肺癌(non-small cell lung carcinoma,NSCLC)约占全部肺癌的80%。据2009肺癌国际分期,ⅢA(N2)期 NSCLC包含分期为T1~3N 2M 0期,即病理诊断为原发性NSCLC同时伴隆突下淋巴结和(或)同侧纵隔淋巴结转移者。ⅢA(N₂)期NSCLC所占比例约20%,手术是国内常用的治疗方法。根据ⅢA期NSCLC完全切除术后治疗失败表型看, 局部区域复发率为23%~33%,远处转移率在50%以上。研究报道ⅢA(N₂)期 NSCLC 完全切除术后5年生存率在6%~35%, 完全手术切除后患者是一个异质性明显的疾病组合, 不同临床和病理因素可能决定了不同预后及不同治疗策略。目前临床上进行了广泛的研究以明确可能影响生存或局部复发的预后因素, 以便对N₂期患者进一步细分为预后同质性良好的亚组, 有助于指导术后治疗的个体化实施。文献中报道的影响ⅢA(N₂)期NSCLC完全手术切除后生存和局部复发的临床或病理因素的预测价值仍存在争议, 各研究结果间不尽相同。笔者从生存和局部区域复发两方面综述ⅢA(N₂)期NSCLC完全切除术后相关的临床和病理预后因素, 为指导术后辅助治疗提供参考依据。     

Ⅲa（T1N2M0）期非小细胞肺癌临床和预后影响因素分析

目的:回顾性分析Ⅲa（T1N2M0）期非小细胞肺癌（NSCLC）的临床及预后影响因素,并检测核苷酸切除修复交叉互补组1（ERCC1）和细胞角蛋白19（CK19）等与肿瘤发生、侵袭及转移相关的指标在本组肺癌组织中的表达情况,以此探讨此类型NSCLC的临床及生物学特征。方法:选取2000年1月1日至2003年12月31日在天津医科大学肿瘤医院肺部肿瘤科入院行手术治疗的49例Ⅲa（T1N2M0）期患者,对其病历资料进行随访。收集上述患者的肿瘤组织石蜡切片,采用免疫组织化学方法(SP法),检测ERCC1、CK19等指标在上述类型NSCLC中的表达状况,并进一步分析其与临床病理分期及预后的关系。结果:本组共49例NSCLC患者,总体1年、3年、5年生存率分别为79.59%、30.61%、12.24%。ERCC1和CK19的阳性率分别为38.78%和42.86%。单因素分析:肿瘤直径、纵隔淋巴结是否单站转移和是否行免疫治疗对本组患者的预后影响有统计学意义（P<0.05）;Cox回归多因素分析提示肿瘤直径（P=0.048）、纵隔淋巴结是否单站转移（P=0.045）、ERCC1和CK19的表达情况是影响患者总生存率的独立因素。结论:Ⅲa（T1N2M0）期NSCLC预后优于其他临床N2期肺癌。ERCC1、CK19的表达、肿瘤直径、纵隔淋巴结是否单站转移是影响本组患者预后的独立因素。     

Induction chemotherapy with cisplatin, vinorelbine, and mitomycin-C followed by surgery for patients with pathologic N2 non-small-cell lung cancer

PURPOSE: The treatment strategy for patients with non-small-cell lung cancer (NSCLC) involving ipsilateral mediastinal lymph nodes is still controversial. We performed a phase II feasibility study of induction chemotherapy followed by surgery for patients with pathologic N2 NSCLC. PATIENTS AND METHODS: Patients with mediastinoscopy- positive stage IIIA N2 NSCLC received 2 cycles of cisplatin 80 mg/m2, vinorelbine 25 mg/m2, and mitomycin-C 8 mg/m2. Patients without progressive disease underwent thoracotomy and lobectomy with lymph node dissections 2-4 weeks later. RESULTS: From January 2000 to July 2004, 24 eligible patients (15 men, 9 women) were enrolled. Induction chemotherapy was completed as planned in 23 patients (95.8%). Hematological toxicity was the primary grade 3/4 toxicity. Twelve (50%) patients achieved a partial response. Twenty-three patients underwent surgical resection, and complete resection was achieved in 22 patients (95.7%). There were no surgery-related deaths. Pathologic complete response in metastatic lymph nodes was achieved in 5 patients. With a median follow-up of 5.4 years (range, 2.88-7.7 years), the estimated 5-year survival was 51.8% (95% CI, 41.3-62.3) and progression-free survival was 46.6% (95% CI, 36-57.2). CONCLUSION: Induction chemotherapy followed by surgery for patients with pathologic N2 NSCLC was feasible and associated with high response to lymph node metastasis and good survival.     

Ⅰ～ⅢA期非小细胞肺癌淋巴结清扫范围的前瞻性研究

目的 探讨非小细胞肺癌（NSCLC）外科治疗中系统性淋巴结清扫的作用。方法 对可手术的504例Ⅰ-ⅢA期病例随机分成研究组和对照组。研究组在肺切除同时行系统纵隔淋巴结清扫术;对照组则在肺切除同时仅行肺门淋巴结清扫术;纵隔淋巴结肉眼怀疑转移者则行该淋巴结摘除术。凡符合入选标准病例均对术式、病理类型、病理分级、肿瘤体积、淋巴结切除总数目、淋巴结转移数目、淋巴结转移比（淋巴结转移数量／淋巴结切除总数量）、PTNM分期、辅助治疗、随访期间内的复发转移、手术并发症、生存时间、生存质量等13项指标进行观察和评价。生存分析用Kaplan-Meier法,预后分析用Cox成比例危险率模型。结果 504例中,符合研究标准的病例共320例,研究组160例,平均每例切除淋巴结9．49个;对照组160例,平均每例切除淋巴结3．63个。Ⅰ期肺癌研究组的1,3,5,9年生存率分别为91．8％、86．9％、81．4％和74．2％,对照组为88．7％、72．5％、58．5％和52．1％,差异有显著性。Ⅱ、ⅢA期两组间的生存曲线差异无显著性。影响长期生存率的因素有术后分期、淋巴结转移比和淋巴结清扫范围3个因素。结论 肺叶（全肺）切除加上系统性的胸内淋巴结清扫,能减少肺癌术后局部复发率和远处转移率,提高长期生存率,可列为非小细胞肺癌的规范性术式。     

Heterogeneity of stage IIIA non-small cell lung cancers (NSCLC) and evaluation of late results of surgical treatment.

AIMS: The aim of the study was assessment of the heterogeneity of stage IIIA non-small cell lung cancers (NSCLC) and the late results of surgical treatment. METHODS: The study group consisted of 83 consecutive patients discharged between 1988 and 1992 undergoing radical operative treatment for stage IIIA NSCLC. Squamous cell carcinoma was diagnosed in 54 (65.1%) patients, adenocarcinoma in 23 (27.7%), large cell carcinoma in 2 (2.4%) and mixed (i.e. adenoid-squamous type) in 4 (4.8%). In respect of pTNM staging, 19 (22.9%) patients had T3N1M0, 35 (42.2%) had T2N2M0 and 29 (34.9%) had T3N2M0. RESULTS: Overall, 13.3% of patients with stage IIIA NSCLC survived 5 years following the operation and 8.7% survived 10 years. Analysis of follow-up study indicated that this group was heterogenic. In T3N1M0 group 26.3% survived 5 years following the operation, in T2N2M0 group 14.3%, in T3N2M0 group 3.5% (P = 0.015). Of 23 patients with N2 disease and no metastases in hilar lymph nodes ('skip' metastases), 26.1% survived 5 years, whereas none of 41 patients with metastases spreading by continuity survived (P = 0.0015). If mediastinal lymph node metastases were diagnosed in one level, 25% patients survived 5 years, but if two or more levels were affected, 2.3% only (P = 0.0214): 85.7% of patients with well-differentiated (G1) cancer survived 5 years and 62.0% 10 years, whereas among those with moderately differentiated (G2) tumours, 11.8% and 8.8%, respectively. No patient survived 5 years after resection of poorly differentiated (G3) cancer (P < 0.001). CONCLUSIONS: (1) Patients operated for stage IIIA NSCLC are a heterogeneous group, which makes it difficult to predict late results. (2) Patients operated for stage IIIA NSCLC have a better prognosis if metastases are discovered in level one mediastinal lymph nodes, particularly in the superior part of mediastinum, or if 'skip' metastases (pulmonary hilus unaffected) are discovered, as compared to those with N2 disease. (3) Poor histologic differentiation of the tumour is a bad prognostic factor.     

In vivo identification of sentinel lymph nodes for clinical stage I non-small cell lung cancer for abbreviation of mediastinal lymph node dissection

BACKGROUND: We previously reported that an identification of sentinel lymph node (SN) with a techenetium-99m (99mTc) tin colloid by ex vivo counting, i.e. the radio-activity of dissected lymph nodes, was a reliable method of establishing the first site of nodal metastasis in non-small cell lung cancer [J. Thorac. Cardiovasc. Surg. 124(2002)486]. However, for SN navigation surgery, SN should be identified before lymph node dissection (in vivo) but not after that (ex vivo). In order to reduce mediastinal lymph node dissection for clinical stage I non-small cell lung cancer (NSCLC) by SN navigation surgery, the SN identifications for hilar lymph nodes by ex vivo counting, and for mediastinal lymph nodes by in vivo, were evaluated. METHODS: Intra-operative SN identification using 99mTc tin colloid was conducted on 104 patients with clinical stage I NSCLC who had had major lung resections with mediastinal lymph node dissections. The hilar SNs were identified by ex vivo counting (after lung resection) and the mediastinal SNs were identified by in vivo counting (before lymph node dissection). To evaluate the accuracy of mediastinal SN identification by in vivo counting, it was compared with the data by ex vivo counting. RESULTS: SNs were identified in 84 patients (81%). SNs were identified at the hilum by ex vivo counting in 78 patients (93%) and at the mediastinum by in vivo counting in 40 patients (48%). While 15 patients had lymph node metastases, i.e. N1 in six and N2 in nine, the SNs could be found to have metastases during operation in 13 of the 15 patients (87%). The in vivo counting of the mediastinum missed out the mediastinal SNs identified by ex vivo counting in four of the 84 patients (5%). CONCLUSION: If the hilar SNs identified by ex vivo counting and the mediastinal SNs identified by in vivo counting had no metastases, then mediastinal lymph node dissection could be abbreviated for patients with clinical stage I NSCLC.     

肺癌淋巴结隐匿性转移的基因诊断及预后研究

目的 探讨非小细胞肺癌（NSCLC）纵隔淋巴结隐匿性转移的基因诊断方法,并评价其对预后的意义。方法 应用逆转录聚合酶链反应（RT－PCR）技术,对37例pN0 NSCLC（Ⅰa-Ⅱb期）的168枚纵隔淋巴结标本中的黏蛋白1（MUC1）基因mRNA表达情况进行检测。对照组为同期经手术治疗的患者,其中阴性对照淋巴结30枚（取自14例肺良性病变）,阳性对照标本30个（15例NSCLC的肿瘤标本和病理诊断为转移癌的NSCLC纵隔淋巴结15枚）。通过x^2检验,比较预后差别。结果 阴性对照组均无MUC1 mRNA表达,特异度1005;阳性对照组30个标本中,26个有MUC1 mRNA表达,灵敏度86.7%。实验组中12例患者的16个标本有MUC1 mRNA表达,占9.5%,其TNM分期上调为Ⅲa。MUC1 mRNA表达阴性组3年生存率（88.0%）高于MUC1 mRNA阳性组（58.3%,P＜0.05）。结论 应用RT－PCR法检测MUC1 mRNA的表达可诊断肺癌纵隔淋巴结隐匿性转移;纵隔淋巴结隐匿性转移可能与pN0肺癌预后不良有关。     

Effect of number of lymph nodes sampled on outcome in patients with stage I non-small-cell lung cancer.

PURPOSE: We postulate that surgical sampling and pathologic evaluation of lymph nodes of surgical specimens from patients with stage I non-small-cell lung cancer (NSCLC) can have an effect on the time to recurrence and survival of these patients. PATIENTS AND METHODS: We analyzed data on 442 patients with stage I NSCLC who were treated with surgical resection and some form of lymph node sampling. Associations between total lymph nodes sampled and disease-free survival (DFS) and overall survival (OS) were investigated. The effect of total lymph node stations sampled and the surgical techniques (random lymph node sampling, systematic sampling [SS], or complete mediastinal lymph node dissection [MLND]) on DFS and OS was also studied. Complete MLND and SS were defined as dissection or sampling of levels 4, 7, and 10 for right-sided lesions and levels 5 or 6 and 7 for left-sided lesions. RESULTS: Patients were divided into quartiles on the basis of total number of lymph nodes sampled. Improved DFS and OS were associated with greater number of lymph nodes sampled. SS and MLND were associated with improved survival compared with random lymph node sampling. The total number of lymph nodes sampled maintained strong significance in the multivariate analysis. CONCLUSION: These results indicate that examining a greater number of lymph nodes in patients with stage I NSCLC treated with resection increases the likelihood of proper staging and affects patient outcome. Such information is important not only for therapy and prognosis of individuals but also for identifying those who may benefit from adjuvant therapy.     

可手术非小细胞肺癌对侧纵隔和斜角肌前淋巴结转移的临床研究

目的探讨适合行病灶对侧纵隔、斜角肌前淋巴结活检的可手术非小细胞肺癌患者的临床特征。方法89例Ⅰ～ⅢA期非小细胞肺癌患者开胸术前行经颈纵隔镜检查,12例联合右斜角肌活检术,10例联合前纵隔切开术。结果纵隔镜检查后发现9例为不可手术患者,其中3例为右斜角肌淋巴结转移(N3),6例为病灶对侧纵隔淋巴结转移(N3)。统计学分析显示,肺腺癌组的N3发生率高于非腺癌组(P<0.05),血清CEA水平升高组的N3发生率高于正常组(P<0.05),同侧纵隔淋巴结多站转移组的N3发生率高于同侧单站转移组(P<0.05)。结论对可手术的肺腺癌、血清CEA升高、病灶同侧纵隔淋巴结多站转移患者应行病灶对侧或斜角肌前淋巴结活检,以排除N3病变。     

肺癌纵隔淋巴结合理廓清范围的临床探讨

目的：探讨非小细胞肺癌(NSCLC)纵隔淋巴结转移方式。方法：回顾性研究1989年1月—1999年1月，淋巴结廓清术后病理证实的纵隔淋巴结转移(pN2)137例。分析临床病理因素与pN2的关系．应用Logistic回归分析判定纵隔淋巴结CT扫描阴性时(cN0-1)pN2有意义的预测指标；总结不同位置肺癌纵隔淋巴结转移的方式。结果：NSCLC无论病理类型和临床状态如何，均有纵隔淋巴结转移发生。纵隔淋巴结增大(cN2)和cT2或cT3腺癌患者转移的发生率较高(65．0％，75．0％)。纵隔淋巴结转移多为区域性(80．9％)，跨区域纵隔淋巴结转移多数伴有隆凸下淋巴结受累。结论：对NSCLC应行纵隔淋巴结廓清，尤其对cN2和cT3、cT3腺癌。多数患者单独廓清区域纵隔淋巴结即可达到目的。建议手术中对肺门和隆凸下淋巴结冰冻病理检查，无转移时可不必廓清非区域纵隔淋巴结。