Evidence map›Paper›PMID 34420139›Full record

ArticleEsophagus : official journal of the Japan Esophageal Society2022

Long-term clinical outcomes of patients diagnosed with pT1a-muscularis mucosae with lymphovascular invasion or pT1b after endoscopic resection for cT1N0M0 esophageal squamous cell carcinoma.

Tomohiro Kadota, Daiki Sato, Atsushi Inaba, Keiichiro Nishihara, Kenji Takashima, Keiichiro Nakajo, Hiroki Yukami, Saori Mishima, Kentaro Sawada, Daisuke Kotani and 7 more

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Article in Esophagus : official journal of the Japan Esophageal Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
1.0field-weighted citation impact, top 23% 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, 3 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
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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

17 authors at 1 institution in 1 country.

Tomohiro KadotaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan. tkadota@east.ncc.go.jp.ORCID 0000-0002-0408-3494
Daiki SatoDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Atsushi InabaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Keiichiro NishiharaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Kenji TakashimaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Keiichiro NakajoDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Hiroki YukamiDepartment of Gastroenterology, Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
Saori MishimaDepartment of Gastroenterology, Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
Kentaro SawadaDepartment of Gastroenterology, Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
Daisuke KotaniDepartment of Gastroenterology, Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
Hisashi FujiwaraDepartment of Esophageal Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
Masaki NakamuraDepartment of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, Kashiwa, Japan.
Hidehiro HojoDepartment of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, Kashiwa, Japan.
Yusuke YodaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Takashi KojimaDepartment of Gastroenterology, Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
Takeo FujitaDepartment of Esophageal Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
Tomonori YanoDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
National Cancer Center Hospital East · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndoscopic resection (ER) is performed for early esophageal squamous cell carcinoma (ESCC) cases. Additional esophagectomy or chemoradiotherapy is recommended for non-curative resection (NCR) even with pathologically negative vertical margins (pVM0); however, their clinical outcomes remain unknown. We examined the long-term clinical outcomes of NCR for ESCCs according to additional treatments.

methodsWe retrospectively analyzed the data of patients who underwent ER for cT1N0M0 ESCC between 2009 and 2017 judged to have NCR, which defined when pathologically diagnosed as invading the submucosa (SM) or muscularis mucosae (MM) involving lymphovascular invasion (LVI), pVM0, and endoscopically judged as negative horizontal margin. Additional esophagectomy (involving three-field lymphadenectomy), chemoradiotherapy [mainly cisplatin and 5-fluorouracil with concurrent radiotherapy (41.4 Gy)], or observation was undertaken. Thereafter, computed tomography was performed every 6-12 months. The cumulative recurrence (CRR) and recurrence-free survival (RFS) rates were evaluated.

resultsEighty-nine patients were included. Among them, 14 had pathologically diagnosed pMM with LVI; 9 and 6, and 32 and 28 patients had pSM1 and pSM2 without and with LVI. Twenty-one patients underwent observation, whereas 18 and 50 underwent esophagectomy and chemoradiotherapy. During the 60.6-month median follow-up period, nine patients had recurrence; among them, six patients had occurrence at > 4 years after ER. The 5-year CRR/RFS rates were 35.7%/48.1%, 13.4%/80.4%, and 0.0%/98.0% in the observation, esophagectomy, and chemoradiotherapy groups, respectively (observation vs. chemoradiotherapy; P < 0.001).

conclusionsAdditional treatments showed better long-term outcomes than observation for patients with NCR. As recurrence may occur at > 4 years after ER, careful long-term follow-up examinations are needed.

Indexed as

Esophageal NeoplasmsEsophageal Squamous Cell CarcinomaHumansMucous MembraneRetrospective StudiesTreatment OutcomeChemoradiotherapyEndoscopic mucosal resectionEndoscopic submucosal dissectionEsophageal squamous cell carcinomaEsophagectomy

Identifiers

PMID34420139
OpenAlexW3193341887

What OpenQuestion holds

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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.