Evidence map›Paper›PMID 40597692›Full record

SynthesisBMC gastroenterology2025

Neuroendocrine carcinoma of esophagus: systematic review and meta-analysis of case series.

Seyed Morteza Pourfaraji, Amirmohsen Jalaeefar, Fatemeh Ojaghi Shirmard, Dorsa Salabat, Sara Mohammadi, Narjes Mohammadzadeh

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in BMC gastroenterology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
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

6 authors.

Seyed Morteza PourfarajiSchool of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Amirmohsen JalaeefarDepartment of General Surgery, School of Medicine, Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
Fatemeh Ojaghi ShirmardSchool of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Dorsa SalabatSchool of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Sara MohammadiSchool of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Narjes MohammadzadehDepartment of General Surgery, School of Medicine, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran. nmohamadzadeh@sina.tums.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeuroendocrine carcinoma of the esophagus is a highly aggressive and rare type of cancer, making diagnosis and treatment challenging for clinicians. The current guidelines provide conflicting recommendations, and no standardized treatment protocol is available. We aim to deliver a systematic review of esophageal neuroendocrine carcinoma, including patient characteristics, treatment options, and prognostic factors.

methodsPubMed, Web of Science, Scopus, and Embase were searched up to May 2025 to retrieve the relevant studies containing at least 5 cases that reported treatment details, survival outcomes, or patient characteristics. Meta-analysis was conducted using a random-effects model for prognostic factors reported in at least three studies. We calculated survival information using the Kaplan-Meier method and estimated the median 1, 3, and 5-year survival rates in studies with available individual data that did not directly report the survival outcomes.

resultsOverall, 24 articles with 1618 cases were included. The median overall survival of patients was 22.5 months, with median 1-, 3-, and 5-year survival rates of 76%, 47%, and 34%, respectively. Distant metastasis (HR, 2.68; 95% CI: 2.10 to 3.41; P < .01) and lymph node involvement (HR, 1.44; 95% CI: 1.04 to 1.99; P = .02) were significantly associated with poor prognosis. Surgery in selected cases improved the survival outcomes with an HR of 0.36 (95% CI, 0.28 to 0.46; P = < .01).

conclusionThe current study demonstrates that distant metastasis and lymph node involvement are significant predictors of poor prognosis in esophageal neuroendocrine carcinoma. Survival outcomes were comparable between patients with resectable tumors undergoing surgery and those receiving definitive chemoradiotherapy, both of which outperformed chemotherapy alone or no treatment. While adjuvant therapy may improve survival in node-positive cases post-surgery, this evidence remains limited by small sample sizes in existing studies. Further large-scale, prospective studies are needed to validate optimal treatment strategies, particularly the role of multimodal therapy in advanced disease.

Indexed as

Carcinoma, NeuroendocrineEsophageal NeoplasmsFemaleHumansLymphatic MetastasisMalePrognosisSurvival RateCancerGastrointestinal tractNeuroendocrine TumorsSystematic Review

Identifiers

PMID40597692
PMCPMC12210635

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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.