Evidence map›Paper›PMID 40552634›Full record

ArticleHemodialysis international. International Symposium on Home Hemodialysis2026

Use of Extracorporeal Therapies to Treat Severe Caffeine Poisoning.

Saeko Kohara, Yoshito Kamijo, Michiko Takai, Ryoko Kyan, Eiju Hasegawa, Takuya Shimane

Abstract read
In one paragraph

Article in Hemodialysis international. International Symposium on Home Hemodialysis, 2026. 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

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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. Use of Extracorporeal Therapies to Treat Severe Caffeine Poisoning.Hemodialysis international. International Symposium on Home Hemodialysis · 2026
    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

6 authors.

Saeko KoharaDepartment of Clinical Toxicology, Saitama Medical University, Saitama, Japan.ORCID https://orcid.org/0000-0001-5924-979X
Yoshito KamijoDepartment of Clinical Toxicology, Saitama Medical University, Saitama, Japan.
Michiko TakaiDepartment of Clinical Toxicology, Saitama Medical University, Saitama, Japan.
Ryoko KyanDepartment of Clinical Toxicology, Saitama Medical University, Saitama, Japan.
Eiju HasegawaDepartment of Critical Care Medicine and Trauma, National Hospital Organization Disaster Medical Center, Tokyo, Japan.
Takuya ShimaneDepartment of Drug Dependence Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan.

Funding

Ministry of Health, Labour and Welfare 21KC2002
6 · The paper itself

Abstract

introductionReflecting on recent reports suggesting the efficacy of extracorporeal blood purification, including hemodialysis, for severe caffeine poisoning, we conducted a retrospective 5-year follow-up study on acute caffeine poisoning in Japan particularly focusing on extracorporeal blood purification.

methodsPatients transported to emergency facilities between April 2016 and March 2021 after consuming large or excessive amounts of over-the-counter drugs and energy drinks containing caffeine as a primary ingredient were included. We collected information on demographic characteristics, medical history, the caffeine-containing products consumed, clinical and laboratory findings, treatments, and outcomes using a questionnaire. We compared the data of patients who were treated with and without extracorporeal blood purification (blood purification vs. nonblood purification group). We also compared our findings with those of a previous related study.

findingsSeventy-six patients were included. Patients in the blood purification group (n = 22) were significantly older (p = 0.02), ingested higher estimated doses of caffeine (p < 0.01), demonstrated higher pulse rates (p = 0.01), respiratory rates (p = 0.03), and serum glucose levels (p = 0.05) on admission, resulting in longer hospital stays (p < 0.01) than those in the nonblood purification group (n = 54). However, their backgrounds, clinical features on arrival, and clinical signs and symptoms during the clinical course were similar between this and the previous study. Compared to the previous study, this study had a higher percentage of patients who underwent extracorporeal blood purification (16.8% vs. 28.9%; p = 0.07), including hemodialysis (10.9% vs. 22.4%; p = 0.06); nevertheless, no statistically significant differences were observed in the prognoses between the studies.

conclusionsCurrently, the use of extracorporeal blood purification including hemodialysis for the treatment of caffeine poisoning is being promoted in Japan; however, the decision to administer it mostly depends on the patients' ingested doses or vital signs, and not on the serum caffeine levels. Further studies are warranted to confirm whether extracorporeal blood purification improves the prognoses of patients with severe caffeine poisoning.

Indexed as

CaffeineRenal DialysisAdultAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedRetrospective StudiesCaffeinecaffeinated tabletscaffeineextracorporeal blood purificationhemodialysis

Identifiers

PMID40552634
PMCPMC12817152

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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.