Evidence map›Paper›PMID 37542224›Full record

ArticleBMC emergency medicine2023

Real-time monitoring of vitamin C levels in trauma patients by electron-spin resonance spectrometry.

Ryuichi Takenaka, Shigekiyo Matsumoto, Shinichi Nureki, Shinsuke Wada, Yoshimasa Oyama, Teruo Sakamoto, Takaaki Kitano, Osamu Shigemitsu

Open access · goldAbstract read
In one paragraph

Article in BMC emergency medicine, 2023. 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, top 85% 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

1 citing paper in PubMed, 0 citations in OpenAlex.

  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

8 authors at 2 institutions in 1 country.

Ryuichi TakenakaDepartment of Emergency Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan. ryuichi@oita-u.ac.jp.
Shigekiyo MatsumotoDepartment of Anesthesiology and Intensive Care Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Shinichi NurekiDepartment of Respiratory Medicine and Infectious Disease, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Shinsuke WadaDepartment of Emergency Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Yoshimasa OyamaDepartment of Anesthesiology and Intensive Care Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Teruo SakamotoAdvanced Trauma, Emergency and Critical Care Center, Oita University Hospital, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Takaaki KitanoDepartment of Anesthesiology and Intensive Care Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Osamu ShigemitsuDepartment of Emergency Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu, Oita, 879-5593, Japan.
Oita University · JPOita University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn critically ill patients, healthy vitamin C levels are important to avoid an imbalance in reactive oxygen species. To achieve this, oxidative stress levels in emergency patients need to be accurately measured in real-time. However, normally, reactive oxygen/nitrogen species are short-lived, rendering measurement difficult; moreover, measurement of relatively stable antioxidants and other oxidative stress markers in real-time is challenging. Therefore, we used electron-spin resonance spectrometry (ESR) to assess vitamin C levels, clarify their relationship with patients' severity, and establish more effective vitamin C therapy in critically ill patients.

methodsWe studied 103 severely ill emergency patients and 15 healthy volunteers. Vitamin C radical (VCR/dimethyl sulfoxide [DMSO]) values were analyzed in arterial blood samples by ESR at admission and once daily thereafter during the acute recovery phase. Severity scores were calculated. The relationship between these scores and VCR/DMSO values and chronological changes in VCR/DMSO values were analyzed.

resultsSerum VCR/DMSO values were significantly lower in critically ill patients than in healthy volunteers (0.264 ± 0.014 vs. 0.935 ± 0.052, p < 0.05), particularly in the severe trauma group and the cardiopulmonary arrest/post-cardiac arrest syndrome group. VCR/DMSO values and various severity scores did not correlate at admission; however, they correlated with SOFA scores from days 2-6. VCR/DMSO values remained low from the first measurement day through Day 6 of illness.

conclusionsVitamin C levels were low at admission, remained low with conventional nutritional support, and did not correlate with the initial patient's severity; however, they correlated with patients' severity after admission. Some patients had normal vitamin C levels. Therefore, vitamin C levels should be measured in real-time and supplemented if they are below normal levels.

trial registrationRetrospectively registered.

Indexed as

Critical IllnessDimethyl SulfoxideAscorbic AcidElectronsHumansSpectrum AnalysisAscorbic AcidDimethyl SulfoxideCritical illnessElectron-spin resonance spectrometryEmergencyTraumaVitamin C

Identifiers

PMID37542224
PMCPMC10403879
OpenAlexW4385609500

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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.