Evidence map›Paper›PMID 34753448›Full record

Observational studyBMC cancer2021

Patterns and timing of recurrence in esophageal squamous cell carcinoma patients treated with neoadjuvant chemoradiotherapy plus esophagectomy.

Yushi Nagaki, Satoru Motoyama, Yusuke Sato, Akiyuki Wakita, Hiromu Fujita, Yoshihiro Sasaki, Kazuhiro Imai, Yoshihiro Minamiya

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Trial
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  6. CCL5Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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

8 authors at 2 institutions in 1 country.

Yushi NagakiDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan. standoffdatta10@yahoo.co.jp.
Satoru MotoyamaDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan.
Yusuke SatoDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan.
Akiyuki WakitaDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan.
Hiromu FujitaDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan.
Yoshihiro SasakiDivision of Esophageal Surgery, Akita University Hospital, Akita, Japan.
Kazuhiro ImaiDepartment of Thoracic Surgery, Akita University Graduate School of Medicine, Akita, Japan.
Yoshihiro MinamiyaDepartment of Thoracic Surgery, Akita University Graduate School of Medicine, Akita, Japan.
Akita University · JPAkita University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTumor regression grade (TRG) after neoadjuvant therapy is reportedly predictive of prognosis in esophageal cancer patients, as lack of a response to neoadjuvant therapy is associated with a poor prognosis. However, there is little information available on the timing and pattern of recurrence after esophagectomy for thoracic esophageal squamous cell carcinoma (TESCC) that takes into consideration TRG after neoadjuvant chemoradiotherapy (NACRT). Here, in an effort to gain insight into a treatment strategy that improves the prognosis of NACRT non-responders, we evaluated the patterns and timing of recurrence in TESCC patients, taking into consideration TRG after NACRT.

methodsA total of 127 TESCC patients treated with NACRT and esophagectomy between 2009 and 2017 were enrolled in this observational cohort study. TRGs were assigned based on the proportion of residual tumor cells in the area (TRG1, ≥1/3 viable cancer cells; 2, < 1/3 viable cancer cells; 3, no viable cancer cells). We retrospectively investigated the timing and patterns of recurrence and the prognoses in TESCC patients, taking into consideration TRG after NACRT.

resultsThe 127 participating TESCC patients were categorized as TRG1 (42 patients, 33%), TRG2 (56 patients, 44%) or TRG3 (29 patients, 23%). The locoregional recurrence rate was higher in TRG1 (36.4%) patients than combined TRG2-3 (7.4%) patients. Patients with TRG3 had better prognoses, though a few TRG3 patients experienced distant recurrence. There were no significant differences in median time to first recurrence or OS among patients with locoregional or distant recurrence. There was a trend toward better OS in TRG2-3 patients with recurrence than TRG1 patients with recurrence, but the difference was not significant.

conclusionsNACRT non-responders (TRG1 patients) experienced higher locoregional recurrence rates and earlier recurrence with distant or locoregional metastasis. TRG appears to be useful for establishing a strategy for perioperative treatments to improve TESCC patient survival, especially among TRG1 patients. (303 words).

Indexed as

EsophagectomyAdultAgedChemoradiotherapy, AdjuvantDisease-Free SurvivalEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaFemaleFollow-Up StudiesHumansMaleMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalNeoplasm StagingPrognosisNACRTRecurrence patternsRecurrence timingTESCCTRG

Identifiers

PMID34753448
PMCPMC8576899
OpenAlexW3212054009

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LicenceCC BY
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Registered trials

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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.