Evidence map›Paper›PMID 34143855›Full record

Observational studyPloS one2021

Use of hyperbaric oxygen therapy for preventing delayed neurological sequelae in patients with carbon monoxide poisoning: A multicenter, prospective, observational study in Japan.

Motoki Fujita, Masaki Todani, Kotaro Kaneda, Shinya Suzuki, Shinjiro Wakai, Shota Kikuta, Satomi Sasaki, Noriyuki Hattori, Kazuyoshi Yagishita, Koji Kuwata and 2 more

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 21% of its field
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

13 citing papers in PubMed, 25 citations in OpenAlex.

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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

12 authors at 9 institutions in 1 country.

Motoki FujitaAcute and General Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan.ORCID 0000-0002-0981-847X
Masaki TodaniAdvanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, Ube, Japan.
Kotaro KanedaAdvanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, Ube, Japan.
Shinya SuzukiDepartment of Emergency Medicine, Kameda Medical Center, Kamogawa, Japan.
Shinjiro WakaiDepartment of Emergency and Critical Care Medicine, Tokai University School of Medicine, Isehara, Japan.
Shota KikutaDepartment of Emergency and Critical Care Medicine, Hyogo Emergency Medical Center, Kobe, Japan.
Satomi SasakiAdvanced Medical Emergency Department and Critical Care Center, Japanese Red Cross Maebashi Hospital, Maebashi, Japan.
Noriyuki HattoriDepartment of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, Chiba, Japan.
Kazuyoshi YagishitaHyperbaric Medical Center, Tokyo Medical and Dental University, Tokyo, Japan.
Koji KuwataDivision of Medicine, Japan Self Defense Forces Hospital Yokosuka, Yokosuka, Japan.
Ryosuke TsurutaAcute and General Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan.
COP-J Study Investigators
Yamaguchi University · JPYamaguchi University Hospital · JPChiba University · JPKameda Medical Center · JPKobe Medical Center · JPMaebashi Red Cross Hospital · JPSelf-Defense Forces Central Hospital · JPTokai University · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this study was to clarify the practical clinical treatment for acute carbon monoxide (CO) poisoning in Japan and to investigate the efficacy of hyperbaric oxygen (HBO2) therapy in preventing delayed neurological sequelae (DNS) in the acute phase of CO poisoning.

methodsWe conducted a multicenter, prospective, observational study of acute CO poisoning in Japan. Patients with acute CO poisoning were enrolled and their treatment details were recorded. The primary endpoint was the onset of DNS within 2 months of CO exposure. Factors associated with DNS were assessed with logistic regression analysis.

resultsA total of 311 patients from 57 institutions were registered and 255 were analyzed: 171 received HBO2 therapy (HBO2 group) and 84 did not (normobaric oxygen [NBO2] group). HBO2 therapy was performed zero, once, twice, or three times within the first 24 h in 1.8%, 55.9%, 30.9%, and 11.3% of the HBO2 group, respectively. The treatment pressure in the first HBO2 session was 2.8 ATA (47.9% of the HBO2 group), 2.0 ATA (41.8%), 2.5 ATA (7.9%), or another pressure (2.4%). The incidence of DNS was 13/171 (7.6%) in the HBO2 group and 3/84 (3.6%) in the NBO2 group (P = 0.212). The number of HBO2 sessions in the first 24 h was one of the factors associated with the incidence of DNS (odds ratio, 2.082; 95% confidence interval, 1.101-3.937; P = 0.024).

conclusionsThe practical clinical treatment for acute CO poisoning, including HBO2 therapy, varied among the institutions participating in Japan. HBO2 therapy with inconsistent protocols showed no advantage over NBO2 therapy in preventing DNS. Multiple HBO2 sessions was associated with the incidence of DNS.

Indexed as

Hyperbaric OxygenationAdultAgedCarbon Monoxide PoisoningCognitive DysfunctionConsciousness DisordersDisease ProgressionFemaleHeadacheHumansMaleMiddle AgedProspective StudiesTreatment Outcome

Identifiers

PMID34143855
PMCPMC8213185
OpenAlexW3171171838

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.