Evidence map›Paper›PMID 41491906›Full record

ArticleSurgical endoscopy2026

Comprehensive evaluation of the learning curve for submucosal tunneling endoscopic resection.

Jiawei Wang, Zhen Xu, Cenyi Qi, Min Miao, Guoliang Ye, Kefeng Hu, Enpan Xu

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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.

Jiawei WangDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China.
Zhen XuNeurosurgery Department, People's Hospital of Haishu District, Ningbo, 315000, China.
Cenyi QiDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China.
Min MiaoDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China.
Guoliang YeDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China.
Kefeng HuDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China. fyhukefeng@nbu.edu.cn.
Enpan XuDepartment of Gastroenterology, The First Affiliated Hospital of Ningbo University, Haishu District, No. 59, Liuting Street, Ningbo, 315020, China. xep19821832282@163.com.ORCID 0000-0001-7341-3437

Funding

Ningbo Top Medical and Health Research Program 2023020612
6 · The paper itself

Abstract

objectiveTo analyze the learning curve for submucosal tunneling endoscopic resection (STER).

methodsA retrospective analysis of clinical data from patients with submucosal tumors (SMTs) treated with STER at the First Affiliated Hospital of Ningbo University from January 2018 to October 2024. The surgeries were performed by three endoscopists in our hospital with no prior STER experience. Cumulative sum (CUSUM) curves were used to analyze lesion diameter, lesion location, operation time, tunnel length, procedure speed, en bloc resection rate, complete resection rate, and intraoperative and postoperative complications in different phases for each endoscopists.

resultsThere was no statistically significant difference (P > 0.05) in age and lesion location among the three endoscopists' cases. Based on the inflection point of the CUSUM curve (16-19 cases), the process can be divided into two phases (phase 1 and phase 2). Each endoscopist showed a significant increase in procedure speed in phase 2 compared to phase 1 [0.21 (IQR: 0.12-0.35) cm

conclusionFor endoscopists inexperienced in STER, approximately 20 cases are required to achieve fundamental proficiency in its operative methods and techniques.

Indexed as

Endoscopic Mucosal ResectionLearning CurveStomach NeoplasmsAgedClinical CompetenceFemaleHumansMaleMiddle AgedOperative TimePostoperative ComplicationsRetrospective StudiesCumulative sum analysisLearning curveSubmucosal tunneling endoscopic resection

Identifiers

PMID41491906

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.