Evidence map›Paper›PMID 30980136›Full record

ArticleSurgical endoscopy2020

Mucosal loss as a critical factor in esophageal stricture formation after mucosal resection: a pilot experiment in a porcine model.

Bing-Rong Liu, Dan Liu, Wenyi Yang, Saif Ullah, Zhen Cao, Dezhi He, Xuehui Zhang, Yang Shi, Yangyang Zhou, Yong Chen and 4 more

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. [Establishment of rabbit model of benign circumferential esophageal stricture].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
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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

14 authors at 2 institutions in 1 country.

Bing-Rong LiuDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China. bingrongliu@qq.com.
Dan LiuDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Wenyi YangDepartment of Gastroenterology, First Affiliated Hospital of Henan University, Kaifeng, Henan, China.
Saif UllahDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Zhen CaoDepartment of Gastroenterology, First Affiliated Hospital of Henan University, Kaifeng, Henan, China.
Dezhi HeDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Xuehui ZhangDepartment of Gastroenterology, First Affiliated Hospital of Henan University, Kaifeng, Henan, China.
Yang ShiDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Yangyang ZhouDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Yong ChenDepartment of Gastroenterology, First Affiliated Hospital of Henan University, Kaifeng, Henan, China.
Donghai HeDepartment of Gastroenterology, First Affiliated Hospital of Henan University, Kaifeng, Henan, China.
Lixia ZhaoDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Yulian YuanDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
Deliang LiDepartment of Gastroenterology, First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052, China.
First Affiliated Hospital of Zhengzhou University · CNFirst Affiliated Hospital of Henan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimEsophageal stricture is a major complication of large areas endoscopic submucosal dissection (ESD). Until now, the critical mechanism of esophageal stricture remains unclear. We examined the role of mucosal loss versus submucosal damage in esophageal stricture formation after mucosal resection using a porcine model. MATERIALS AND

methodsTwelve swine were randomly divided into two groups, each of 6. In each group, two 5-cm-long submucosal tunnels were made to involve 1/3rd of the widths of the anterior and posterior esophageal circumference. The entire mucosal roofs of both tunnels were resected in group A. In group B, the tunnel roof mucosa was incised longitudinally along the length of the tunnel, but without excision of any mucosa. Stricture formation was evaluated by endoscopy after 1, 2, and 4 weeks, respectively. Anatomical and histological examinations were performed after euthanasia.

resultsHealing observed on endoscopy in both groups after 1 week. Group A (mucosa resected) developed mild-to-severe esophageal stricture, dysphagia, and weight loss. In contrast, no esophageal stricture was evident in group B (mucosa incisions without resection) after 2 and 4 weeks, respectively. Macroscopic examination showed severe esophageal stricture and shortening of esophagus in only group A. Inflammation and fibrous hyperplasia of the submucosal layer was observed on histological examination in both groups.

conclusionThe extent of loss of esophageal mucosa appears to be a critical factor for esophageal stricture. Inflammation followed by fibrosis may contribute to alteration in compliance of the esophagus but is not the main mechanism of postresection stricture.

Indexed as

Disease Models, AnimalAnimalsEndoscopic Mucosal ResectionEsophageal StenosisEsophagitisEsophagoscopyFibrosisMedical ErrorsPilot ProjectsPostoperative ComplicationsPyloromyotomySwineWound HealingESDEsophagusMechanismStricture

Identifiers

PMID30980136
OpenAlexW2939575099

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.