Evidence map›Paper›PMID 40478345›Full record

Observational studyEuropean radiology2025

Hospital volume-outcome relationship in emergency trunk interventional radiology for trauma patients: a nationwide observational study in Japan.

Shogo Takashima, Kazuma Yamakawa, Ryo Hisamune, Noritaka Ushio, Akira Endo, Ryo Yamamoto, Kazuhiro Yamamoto, Keigo Osuga, Akira Takasu

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in European radiology, 2025. 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. 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

9 authors.

Shogo TakashimaDepartment of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Kazuma YamakawaDepartment of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan. kazuma.yamakawa@ompu.ac.jp.ORCID http://orcid.org/0000-0003-2999-4021
Ryo HisamuneDepartment of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Noritaka UshioDepartment of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Akira EndoDepartment of Acute Critical Care Medicine, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan.
Ryo YamamotoDepartment of Emergency and Critical Care Medicine, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
Kazuhiro YamamotoDepartment of Diagnostic Radiology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Keigo OsugaDepartment of Diagnostic Radiology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Akira TakasuDepartment of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAs with surgery, transcatheter arterial embolization is effective in managing arterial bleeding from trauma-related pelvic fractures and organ injuries. High-volume hospitals generally achieve better outcomes due to provider experience, but whether this applies to interventional radiology (IR) in trauma care remains unclear. This study examined whether hospitals with higher IR volumes improve outcomes for trauma patients. MATERIALS AND

methodsThis retrospective cohort study used data on trauma patients undergoing emergency IR within the torso from the Japan Trauma Data Bank. Hospitals were categorized by annual emergency IR case volume: 1-6 (Category 1), 7-12 (Category 2), 13-18 (Category 3), 19-24 (Category 4), and > 24 cases (Category 5). The association between hospital volume and in-hospital mortality was analyzed with a mixed-effects logistic regression model adjusted for injury severity. Subgroup analyses conducted by dividing the 18-year study period into three intervals, 2004-2009, 2010-2015, and 2016-2021, assessed the time-related impact of volume on outcomes.

resultsWe analyzed 16,090 trunk-IR patients from 303 hospitals. In-hospital mortality rates were 16.2%, 13.9%, 14.3%, 13.1%, and 11.8% for Categories 1 to 5, respectively. Higher volumes of IR cases were associated with reduced mortality. When the annual case number was analyzed as a continuous variable, an increase of one was associated with decreased mortality (odds ratio = 0.988, 95% confidence interval = 0.982-0.994, p  < 0.001). Subgroup analyses showed a significant association between higher volume and reduced mortality during 2004-2009 and 2010-2015, but not during 2016-2021.

conclusionHigh-volume hospitals were associated with lower in-hospital mortality among patients undergoing emergency trunk IR. KEY POINTS: Question The relationship between patient volume and clinical outcome is unknown for trauma patients undergoing emergency radiological interventions of the torso. Findings Higher hospital volumes of interventional radiology procedures performed in the trunk were associated with reduced in-hospital mortality. Clinical relevance Centralizing emergency interventional radiology cases, advancing trauma care education, and increasing awareness of interventional radiology can lead to better patient outcomes.

Indexed as

Hospitals, High-VolumeRadiology, InterventionalWounds and InjuriesAdultAgedFemaleHospital MortalityHumansJapanMaleMiddle AgedRetrospective StudiesTreatment OutcomeInterventional radiologyTranscatheter arterial embolizationTraumaTreatment outcomeVolume-outcome relationship

Identifiers

PMID40478345

What OpenQuestion holds

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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.