Evidence map›Paper›PMID 30478106›Full record

ArticleBMJ open2018

Protective effects of oral anticoagulants on cerebrovascular diseases and cognitive impairment in patients with atrial fibrillation: protocol for a multicentre, prospective, observational, longitudinal cohort study (Strawberry study).

Naoki Saji, Takashi Sakurai, Kengo Ito, Hidekazu Tomimoto, Kazuo Kitagawa, Kaori Miwa, Yuji Tanaka, Koichi Kozaki, Kazuomi Kario, Masato Eto and 6 more

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Real-time data on the prognosis of acute ischemic stroke patients in the Tochigi Clinical ObservatioNal registry for 1-year mortality of aCute ischEmic stRoke patieNt (T-CONCERN) study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    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

16 authors at 9 institutions in 1 country.

Naoki SajiCenter for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan.
Takashi SakuraiCenter for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan.
Kengo ItoInnovation Center for Clinical Research, National Center for Geriatrics and Gerontology, Obu, Japan.
Hidekazu TomimotoDepartment of Neurology, Mie University Graduate School of Medicine, Tsu, Japan.
Kazuo KitagawaDepartment of Neurology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
Kaori MiwaDepartment of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan.
Yuji TanakaDepartment of Neurology, Gifu Municipal Hospital, Gifu, Japan.
Koichi KozakiDepartment of Geriatric Medicine, Kyorin University School of Medicine, Tokyo, Japan.
Kazuomi KarioDivision of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan.
Masato EtoInternational Research Center for Medical Education, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Keisuke SuzukiInnovation Center for Clinical Research, National Center for Geriatrics and Gerontology, Obu, Japan.
Atsuya ShimizuDepartment of Cardiology, National Center for Geriatrics and Gerontology, Obu, Japan.
Shumpei NiidaMedical Genome Center, National Center for Geriatrics and Gerontology, Obu, Japan.
Akihiro HirakawaDepartment of Biostatistics and Bioinformatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Kenji TobaCenter for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan.
Strawberry study investigators
National Center for Geriatrics and Gerontology · JPThe University of Tokyo · JPAichi University of Education · JPJichi Medical University · JPKyorin University · JPMie University · JPNagoya University · JPNational Cerebral and Cardiovascular Center · JPTokyo Women's Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNon-valvular atrial fibrillation (NVAF) is known as a robust risk factor for stroke. Recent reports have suggested a risk of dementia with NVAF, but much remains unknown regarding the relationship between this mechanism and the potential protective effects of novel anticoagulants (direct oral anticoagulants (DOACs), or non-vitamin K oral anticoagulants). METHODS AND ANALYSIS: This study, the strategy to obtain warfarin or DOAC's benefit by evaluating registry, is an investigator-initiated, multicentre, prospective, observational, longitudinal cohort study comparing the effects of warfarin therapy and DOACs on cerebrovascular diseases and cognitive impairment over an estimated duration of 36 months. Once a year for 3 years, the activities of daily living and cognitive functioning of non-demented patients with NVAF will be assessed. Demographics, risk factors, laboratory investigations, lifestyle, social background and brain MRI will be assessed. ETHICS AND DISSEMINATION: This protocol has been approved by the ethics committee of the National Center for Geriatrics and Gerontology (No. 1017) and complies with the Declaration of Helsinki. Informed consent will be obtained before study enrolment and only coded data will be stored in a secured database. The results will be published in peer-reviewed journals and presented at scientific meetings to ensure the applicability of the findings in clinical practice. TRIAL REGISTRATION NUMBER: UMIN000025721.

Indexed as

Activities of Daily LivingAdministration, OralAged, 80 and overAntithrombinsAtrial FibrillationCognitive DysfunctionDementiaFemaleGeriatric AssessmentHumansLongitudinal StudiesMaleMulticenter Studies as TopicObservational Studies as TopicProspective StudiesRegistriesAntithrombinsatrial fibrillationcerebrovascular diseasescognitive impairmentdementiastroke

Identifiers

PMID30478106
PMCPMC6254414
OpenAlexW2902489154

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.