Evidence map›Paper›PMID 33438141›Full record

Observational studyNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021

Antihistamines as a common cause of new-onset seizures: a single-center observational study.

Hayom Kim, Seong Hwan Kim, Jung Bin Kim

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Diphenhydramine: A Review of Its Clinical Applications and Potential Adverse Effect Profile.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2025
    Article
  5. Article
  6. Advances in clinical application of HZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
    Review
  7. Article
  8. Article
  9. Clinical relevance of inherited genetic differences in human tryptases: Hereditary alpha-tryptasemia and beyond.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2021
    Review
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

3 authors at 1 institution in 2 countries.

Hayom KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea.ORCID https://orcid.org/0000-0002-9991-3664
Seong Hwan KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea.ORCID https://orcid.org/0000-0002-0778-1570
Jung Bin KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea. kjbin80@korea.ac.kr.ORCID https://orcid.org/0000-0002-8013-9349
Korea University Medical Center · KR

Funding

Korea University K1922861Korea University Anam Hospital O1700351
6 · The paper itself

Abstract

objectiveScarce data are available regarding the proportion of drugs that have provoked new-onset seizures. The aim of this study was to investigate the types of causative drugs of drug-induced new-onset seizures in a relatively large population of patients who were admitted to our epilepsy monitoring unit.

methodsUsing a hospital-based database, patients with new-onset seizures were selected and the underlying etiology of new-onset seizures was reviewed. Based on the etiologic conditions, acute symptomatic seizure was classified into 7 groups of provocation factors: drug, alcohol, encephalitis, stroke, hypoxic injury, metabolic, and unclassified. Causative drugs for new-onset seizures were further investigated.

resultsAltogether, 363 patients with new-onset seizures were reviewed in this study. The most common cause of new-onset seizures was epilepsy, followed by syncope, acute symptomatic seizure, and others. Drugs were found to be the most common provocation factor for acute symptomatic seizures. The most common causative drug was antihistamine, followed by stimulants, antibiotics, and other drugs. Most patients with antihistamine-induced seizures had normal renal function and were under treatment at the therapeutic dose.

conclusionIn our population, antihistamine accounted for the highest proportion of drug-induced seizures. Considering that antihistamines are widely used as over-the-counter drugs around the world, they should be considered a possible cause of new-onset seizures.

Indexed as

Epilepsies, PartialEpilepsy, GeneralizedEpilepsy, Tonic-ClonicAnticonvulsantsCarbamazepineHistamine AntagonistsHumansSeizuresAnticonvulsantsCarbamazepineHistamine AntagonistsAcute symptomatic seizureAntihistaminesDrug-induced seizureNew-onset seizure

Identifiers

PMID33438141
OpenAlexW3118801495

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.