Evidence map›Paper›PMID 32130519›Full record

ArticleSurgery today2020

A nodal diagnosis by computed tomography is unreliable for patients who need additional gastrectomy after endoscopic submucosal dissection.

Takeyuki Wada, Takaki Yoshikawa, Ayako Kamiya, Keiichi Date, Tsutomu Hayashi, Sho Otsuki, Yukinori Yamagata, Hitoshi Katai, Toshirou Nishida

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgery today, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Takeyuki WadaGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Takaki YoshikawaGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. tayoshik@ncc.go.jp.
Ayako KamiyaGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Keiichi DateGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Tsutomu HayashiGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Sho OtsukiGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Yukinori YamagataGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Hitoshi KataiGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Toshirou NishidaGastric Surgery Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
National Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeT1 gastric cancer is treated by endoscopic submucosal dissection (ESD) or surgery, considering the risk of lymph node metastasis. Additional gastrectomy is necessary when the pathological specimens after ESD show some risk of lymph node metastasis. Preoperative computed tomography (CT) after ESD sometimes reveals enlarged lymph nodes, which should prompt surgeons to select D2 over D1/D1+. However, whether or not CT after ESD is reliable remains unclear.

methodsPatients who underwent radical gastrectomy for clinical T1 between April 2015 and June 2019 were enrolled. The patients were classified into those who underwent CT after ESD (group A) and those who underwent CT before primary surgery or ESD (group B). The accuracy of the nodal diagnosis was compared between groups.

resultsA total of 650 patients (group A; 81, group B; 569) were examined. The accuracy, sensitivity, specificity, positive predictive value, and negative predictive value (group A vs. group B) were 77.8% vs. 84.2%, 0.0% vs. 15.9%, 84.0% vs. 95.7%, 0.0% vs. 38.2%, and 91.3% vs. 87.1%, respectively. The false-positive rate was 100% in group A and 61.8% in group B (p = 0.011).

conclusionsA nodal diagnosis by CT is unreliable for patients who need additional gastrectomy after ESD.

Indexed as

Tomography, X-Ray ComputedAgedEndoscopy, GastrointestinalFalse Positive ReactionsFemaleGastrectomyGastric MucosaHumansLymphatic MetastasisLymph NodesMaleMiddle AgedPredictive Value of TestsReoperationSensitivity and SpecificityStomach NeoplasmsEarly gastric cancerESDLymph node metastasis

Identifiers

PMID32130519
OpenAlexW3009494712

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.