Evidence map›Paper›PMID 26920941›Full record

ArticleEuropean journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery2016

Microscopic N2 disease exhibits a better prognosis in resected non-small-cell lung cancer.

Elena Garelli, Stéphane Renaud, Pierre-Emmanuel Falcoz, Noëlle Weingertner, Anne Olland, Nicola Santelmo, Gilbert Massard

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Article in European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Endosonography With or Without Confirmatory Mediastinoscopy for Resectable Lung Cancer: A Randomized Clinical Trial.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
    Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Neoadjuvant treatment of stage IIIA-N2 inTranslational lung cancer research · 2021
    Review
  7. Review
  8. Article
  9. Article
  10. Unless I see, I will not believe.Journal of thoracic disease · 2017
    Article
  11. Article
  12. Article
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  14. Review
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Elena GarelliDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.
Stéphane RenaudDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France Research Unite EA3430: Tumoral Progression and Micro-environment, Translational and Epidemiological Approaches, Strasbourg University, Strasbourg, France sterenaud0@gmail.com.
Pierre-Emmanuel FalcozDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.
Noëlle WeingertnerDepartment of Pathology, Strasbourg University Hospital, Strasbourg, France.
Anne OllandDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.
Nicola SantelmoDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.
Gilbert MassardDepartment of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe management of pIIIA-N2 non-small-cell lung cancer (NSCLC) is still controversial. In particular, there are wide variations in overall survival (OS), suggesting the existence of subgroups among N2 patients. We aimed to evaluate the prognostic value of microscopic pN2 in NSCLC.

methodsBetween 1996 and 2015, the data from all 982 pathologically stage IIIA-N2 patients who underwent surgery with curative intent for NSCLC were retrospectively reviewed. Microscopic pN2 disease was defined as a nodal metastasis ranging from 0.2 to 2 mm in size.

resultsWith a median follow-up of 17 months (2-101), the 5-year OS for the whole cohort was 31%. Microscopic N2 was observed in 309 (31.5%) patients. Microscopic N2 was associated with better median OS compared with macroscopic N2 [42 months (95% CI 36.85-47.15) vs 23 months (95% CI 19.7-26.29), P < 0.0001, with a corresponding 5-year OS rate of 39 and 21%, respectively]. In multivariate analysis, microscopic N2 remained a favourable independent prognostic factor [HR 0.681 (95% CI 0.481-0.967), P = 0.03]. The median OS of microscopic N2 patients who benefitted from simple follow-up was significantly better than those who underwent chemotherapy, radiation therapy or both [43 months (95% CI 24.22-61.78) vs 22 months (95% CI 17.43-26.47) vs 31 months (95% CI 27.66-34.34) vs 16 months (95% CI 14.6-17.4), P = 0.008].

conclusionMicroscopic N2 seems to be associated with better prognosis in patients with pIIIA-N2 NSCLC and these could benefit from a simple follow-up. Prospective cohort studies are necessary to confirm these preliminary results.

Indexed as

Neoplasm StagingCarcinoma, Non-Small-Cell LungFemaleFollow-Up StudiesFranceHumansLung NeoplasmsMaleMiddle AgedPneumonectomyPrognosisRetrospective StudiesSurvival RateTime FactorsLymph node ratioMicroscopicN2Non-small-cell lung cancer

Identifiers

PMID26920941

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.