Evidence map›Paper›PMID 40591118›Full record

ArticleJapanese journal of radiology2025

CT-based assessment of bear-inflicted maxillofacial injuries: evaluation using the facial injury severity scale and its association with hospitalization duration.

Kento Hatakeyama, Takahiro Otani, Kasumi Satoh, Hideomi Tsuchida, Tomoki Tozawa, Motoko Konno, Shinsuke Suzuki, Takafumi Tezuka, Shunji Mugikura, Akira Hayakawa and 3 more

Abstract read
In one paragraph

Article in Japanese journal of radiology, 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.

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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

13 authors.

Kento Hatakeyama *Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Takahiro Otani *Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Kasumi SatohDepartment of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Hideomi TsuchidaDepartment of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Tomoki TozawaDepartment of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Motoko KonnoDepartment of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Shinsuke SuzukiDepartment of Otorhinolaryngology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.ORCID http://orcid.org/0000-0002-9138-610X
Takafumi TezukaDepartment of Dermatology and Plastic and Reconstructive Surgery, Faculty of Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
Shunji MugikuraDivision of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan.
Akira HayakawaDepartment of Forensic Sciences, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Takechiyo YamadaDepartment of Otorhinolaryngology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Hajime NakaeDepartment of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
Naoko MoriDepartment of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan. naokomori7127@gmail.com.ORCID http://orcid.org/0000-0002-8700-9731

Funding

Japan Society for the Promotion of Science 25K10903
6 · The paper itself

Abstract

purposeBear-inflicted injuries are often associated with severe maxillofacial injury. This study aimed to evaluate CT findings of bear-inflicted injuries using the Facial Injury Severity Scale (FISS) and other trauma grading systems, with a particular focus on the relationship between FISS scores and hospitalization duration as well as the characteristics of maxillofacial injuries. MATERIALS AND

methodsThis retrospective study included 31 patients with bear-inflicted injuries who underwent whole-body CT. Maxillofacial injury severity was assessed using FISS, while head and thoracic injuries were evaluated using the Marshall Head-CT Classification and the AAST Chest Wall Injury Scale, respectively. Patients were categorized into short (≤ 18 days) and long (> 18 days) hospitalization groups based on the median hospitalization duration. Univariate and multivariate analyses were performed to identify factors associated with hospitalization duration.

resultsPatients in the long hospitalization group had higher FISS scores (p = 0.01) and AAST chest wall injury grades (p = 0.03), with no significant differences in Marshall Head-CT Classification. Multivariate analysis confirmed that both FISS scores and AAST chest wall injury grade were independently associated with hospitalization duration. A detailed analysis of FISS scores revealed significant bilateral correlations between right and left midface scores (p < 0.01) and right and left upper face scores (p < 0.01). Additionally, significant correlations were observed between midface and upper face scores.

conclusionFISS scores and AAST chest wall injury grades were significantly associated with hospitalization duration in bear-inflicted injuries. The midface and upper face injuries often occur simultaneously and bilaterally, possibly due to bears targeting the upper face to weaken their opponent.

Indexed as

HospitalizationLength of StayMaxillofacial InjuriesTomography, X-Ray ComputedAdolescentAdultAgedFemaleHumansInjury Severity ScoreMaleMiddle AgedRetrospective StudiesYoung AdultBear-inflicted injuryFacial injury severity scaleMaxillofacial injury

Identifiers

PMID40591118
PMCPMC12575559

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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.