Evidence map›Paper›PMID 40489836›Full record

ArticleMedicine2025

Global trends in aspiration pneumonia research since 1980: A bibliometric analysis.

Akihito Ueda, Kanji Nohara

Abstract read
In one paragraph

Article in Medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

2 authors.

Akihito UedaDepartment of Internal Medicine, Medical Corporation Toujinkai, Fujitate Hospital, Osaka, Japan.ORCID 0000-0001-5200-7712
Kanji NoharaDepartment of Rehabilitation for Orofacial Disorders, Osaka University Graduate School of Dentistry, Osaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAspiration pneumonia presents a significant healthcare challenge, particularly in aging societies. Despite extensive research, a comprehensive bibliometric analysis of this field has not been previously conducted. This study aimed to systematically analyze the publication patterns, research collaborations, and thematic trends in aspiration pneumonia research between 1980 and 2024.

methodsWe conducted a bibliometric analysis using data from the Web of Science Core Collection database. The analysis included publication trends, citation patterns, author productivity, and research categories. Network analyses were performed using VOSviewer to visualize international collaborations, author networks, and keyword co-occurrence patterns.

resultsOur analysis of 4668 publications revealed a substantial growth in research output, from 10 publications in 1980 to 371 in 2023. The United States and Japan emerged as the 2 major centers of research output. Analysis of the research categories showed a shift from surgical perspectives during the earlier periods toward more comprehensive medical management approaches in recent years, with General Internal Medicine becoming the leading category between 2010 and 2024. The author collaboration network revealed geographically distinct research clusters with limited cross-regional interactions. Keyword co-occurrence analysis identified 4 major research domains: clinical and epidemiological aspects (41 items), treatment-related approaches (29 items), neurological and swallowing disorders (29 items), and malnutrition.

conclusionOur findings demonstrate the evolution of aspiration pneumonia research toward an increasingly multifaceted field that integrates clinical care, rehabilitation, and preventive strategies. The distinct regional patterns in research output suggest opportunities for enhanced international collaboration to advance the current understanding of this condition.

Indexed as

BibliometricsBiomedical ResearchPneumonia, AspirationGlobal HealthHumansaspiration pneumoniabibliometric analysiselderly pneumoniapneumoniaresearch trends

Identifiers

PMID40489836
PMCPMC12150941

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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.