Evidence map›Paper›PMID 33145035›Full record

ArticleJournal of thoracic disease2020

Circulating tumor cells detected only after surgery for non-small cell lung cancer: is it a predictor of recurrence?

Noriyoshi Sawabata, Toshitaka Nakamura, Takeshi Kawaguchi, Takashi Watanabe, Noriko Sageshima Ouji, Toshihiro Ito, Shigeki Taniguchi

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.0field-weighted citation impact, top 11% of its field
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

20 citing papers in PubMed, 30 citations in OpenAlex.

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  17. Detection of epidermal growth factor receptor (Translational lung cancer research · 2021
    Article
  18. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Noriyoshi SawabataRespiratory Disease Center, Hoshigaoka Medical Center, Hirakata City, Osaka, Japan.
Toshitaka NakamuraRespiratory Disease Center, Hoshigaoka Medical Center, Hirakata City, Osaka, Japan.
Takeshi KawaguchiDepartment of Thoracic and Cardio-Vascular Surgery, Nara Medical University, Shijo-cho Kashihara City, Nara, Japan.
Takashi WatanabeDepartment of Thoracic and Cardio-Vascular Surgery, Nara Medical University, Shijo-cho Kashihara City, Nara, Japan.
Noriko Sageshima OujiDepartment of Immunology, Nara Medical University, Shijo-cho Kashihara City, Nara, Japan.
Toshihiro ItoDepartment of Immunology, Nara Medical University, Shijo-cho Kashihara City, Nara, Japan.
Shigeki TaniguchiDepartment of Thoracic and Cardio-Vascular Surgery, Nara Medical University, Shijo-cho Kashihara City, Nara, Japan.
Nara Medical University · JPHoshigaoka Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSurgical manipulation of a tumor can lead to shedding of tumor cells that can enter the circulation and lead to metastasis. The present study evaluated the clinical relevance of circulating tumor cells (CTCs) that were identified immediately after non-small cell lung cancer resection in patients without preoperative CTCs, and whether postoperative CTC detection was associated with recurrence.

methodsImmediate preoperative testing for CTCs was performed for 147 patients with pulmonary nodules. This study included 81 lung cancer patients (55.1%) with negative preoperative results for CTCs and who completed postoperative testing for CTCs. The clinical relevance of postoperative CTC detection was evaluated based on the clinicopathological characteristics and recurrence patterns.

resultsAmong the eligible patients, the postoperative CTC results were none detected in 58 patients (71.6%, "Group N"), only a single CTC detected in 6 patients (7.4%, "Group S"), and CTC clusters detected in 17 patients (21.0%, "Group C"). The presence of postoperative CTCs was associated with tumor vessel invasion, lymph duct invasion, and pleural invasion. Distant metastasis was very common in cases with postoperatively detected CTC clusters. The 2-year recurrence-free survival rates were 94.6% for Group N, 62.5% for Group S, and 52.9% for Group C (P<0.01). Multivariate analysis revealed that recurrence was independently related to the postoperative detection of single CTCs and CTC clusters.

conclusionsIn cases without preoperative CTCs, we postoperatively detected CTCs and the postoperative CTC results were an independent predictor of recurrence.

Indexed as

circulating tumor cell (CTC)Lung cancerrecurrencesurgery

Identifiers

PMID33145035
PMCPMC7578482
OpenAlexW3081831533

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.