Evidence map›Paper›PMID 33664970›Full record

ArticleNeuro-oncology practice2021

Initial symptoms and diagnostic delay in children with brain tumors at a single institution in Japan.

Yuji Yamada, Daiki Kobayashi, Keita Terashima, Chikako Kiyotani, Ryuji Sasaki, Nobuaki Michihata, Toru Kobayashi, Hideki Ogiwara, Kimikazu Matsumoto, Akira Ishiguro

Abstract read
In one paragraph

Article in Neuro-oncology practice, 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
–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

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

  1. Delay in the diagnosis of paediatric brain tumours: a systematic review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2023
    Pooled it
  2. Article
  3. Delay in the diagnosis of pediatric central nervous system tumors: data from a single tertiary care center.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Unlocking delays: revealing barriers to early diagnosis of childhood central nervous system tumors in an upper-middle-income country.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  8. Article
  9. 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

10 authors.

Yuji YamadaChildren's Cancer Center, National Center for Child Health and Development, Tokyo, Japan.ORCID https://orcid.org/0000-0003-1624-4002
Daiki KobayashiCenter for Postgraduate Education and Training, National Center for Child Health and Development, Tokyo, Japan.
Keita TerashimaChildren's Cancer Center, National Center for Child Health and Development, Tokyo, Japan.
Chikako KiyotaniChildren's Cancer Center, National Center for Child Health and Development, Tokyo, Japan.
Ryuji SasakiDivision of Pediatric Emergency and Transport Services, National Center for Child Health and Development, Tokyo, Japan.
Nobuaki MichihataCenter for Postgraduate Education and Training, National Center for Child Health and Development, Tokyo, Japan.
Toru KobayashiDepartment of Management and Strategy, Clinical Research Center, National Center for Child Health and Development, Tokyo, Japan.
Hideki OgiwaraDivision of Neurosurgery, National Center for Child Health and Development, Tokyo, Japan.
Kimikazu MatsumotoChildren's Cancer Center, National Center for Child Health and Development, Tokyo, Japan.
Akira IshiguroCenter for Postgraduate Education and Training, National Center for Child Health and Development, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA prolonged interval between onset of symptoms and diagnosis of childhood brain tumor is associated with worse neurological outcomes. The objectives of this study are to determine factors contributing to diagnostic delay and to find an interventional focus for further reduction in the interval between symptom onset and diagnosis in Japan.

methodsWe retrospectively analyzed 154 patients younger than 18 years with newly diagnosed brain tumors who visited our institution from January 2002 to March 2013.

resultsThe median age at diagnosis was 6.2 years and the median total diagnostic interval (TDI) was 30 days. Patients with low-grade tumors and cerebral midline tumor location had significantly long TDI. Durations between the first medical consultation and diagnosis (diagnostic interval, DI) were exceedingly longer for patients with visual, hearing, or smelling abnormalities as the first symptom (median, 303 days). TDI and DI of patients who visited ophthalmologists or otolaryngologist for the first medical consultation were significantly longer. Among these patients, longer DI was associated with worse visual outcome.

conclusionRaising awareness of brain tumor diagnosis among ophthalmologists and otolaryngologists may reduce diagnostic delay and may improve the neurological impairment of children with brain tumors in Japan.

Indexed as

brain tumorchildrendiagnostic delayinitial symptomvisual, hearing, and smelling abnormalities

Identifiers

PMID33664970
PMCPMC7906264

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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.