Evidence map›Paper›PMID 30691339›Full record

ArticleJournal of the American Heart Association2019

Prior Anticoagulation and Short- or Long-Term Clinical Outcomes in Ischemic Stroke or Transient Ischemic Attack Patients With Nonvalvular Atrial Fibrillation.

Keisuke Tokunaga, Masatoshi Koga, Ryo Itabashi, Hiroshi Yamagami, Kenichi Todo, Sohei Yoshimura, Kazumi Kimura, Shoichiro Sato, Tadashi Terasaki, Manabu Inoue and 24 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Journal of the American Heart Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. Trial
  2. [Prognostic analysis of anticoagulation therapy in elderly patients with cardioembolic stroke].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
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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

34 authors at 19 institutions in 1 country.

Keisuke Tokunaga1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Masatoshi Koga1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Ryo Itabashi3 Department of Stroke Neurology Kohnan Hospital Sendai Japan.
Hiroshi Yamagami2 Division of Stroke Care Unit National Cerebral and Cardiovascular Center Suita Japan.
Kenichi Todo4 Department of Neurology Osaka University Graduate School of Medicine Suita Japan.
Sohei Yoshimura1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Kazumi Kimura5 Department of Neurological Science Graduate School of Medicine Nippon Medical School Tokyo Japan.
Shoichiro Sato1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Tadashi Terasaki6 Department of Neurology Japanese Red Cross Kumamoto Hospital Kumamoto Japan.
Manabu Inoue1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Yoshiaki Shiokawa7 Departments of Neurosurgery and Stroke Center Kyorin University School of Medicine Mitaka Japan.
Masahito Takagi1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Kenji Kamiyama8 Department of Neurosurgery Nakamura Memorial Hospital Sapporo Japan.
Kanta Tanaka1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Shunya Takizawa9 Department of Neurology Tokai University School of Medicine Isehara Japan.
Masayuki Shiozawa1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Satoshi Okuda10 Department of Neurology NHO Nagoya Medical Center Nagoya Japan.
Yasushi Okada11 Department of Neurology and Cerebrovascular Medicine NHO Kyushu Medical Center Fukuoka Japan.
Tomoaki Kameda12 Division of Neurology Jichi Medical University School of Medicine Shimotsuke Japan.
Yoshinari Nagakane14 Department of Neurology Kyoto Second Red Cross Hospital Kyoto Japan.
Yasuhiro Hasegawa15 Department of Neurology St Marianna University School of Medicine Kawasaki Japan.
Satoshi Shibuya16 Department of Neurology South Miyagi Medical Center Ogawara Japan.
Yasuhiro Ito17 Department of Neurology TOYOTA Memorial Hospital Toyota Japan.
Hideki Matsuoka18 Department of Cerebrovascular Medicine NHO Kagoshima Medical Center Kagoshima Japan.
Kazuhiro Takamatsu19 Department of Neurology Brain Attack Center Ota Memorial Hospital Fukuyama Japan.
Kazutoshi Nishiyama20 Department of Neurology Kitasato University School of Medicine Sagamihara Japan.
Kazuomi Kario13 Division of Cardiovascular Medicine Jichi Medical University School of Medicine Shimotsuke Japan.
Yoshiki Yagita21 Department of Stroke Medicine Kawasaki Medical School Kurashiki Japan.
Kyohei Fujita1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Daisuke Ando1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Masaya Kumamoto1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
Shoji Arihiro2 Division of Stroke Care Unit National Cerebral and Cardiovascular Center Suita Japan.
Kazunori Toyoda1 Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan.
SAMURAI Study Investigators
National Cerebral and Cardiovascular Center · JPJichi Medical University · JPKagoshima Medical Center · JPTochigi Medical Center · JPTokai University · JPFuji Heavy Industries Health Insurance Society Ota Memorial Hospital · JPJapanese Red Cross Kumamoto Hospital · JPKawasaki Medical School · JPKitasato University · JPKohnan Hospital · JPKyorin University · JPKyoto first Red Cross hospital · JPNagoya Medical Center · JPNakamura Memorial Hospital · JPNational Kyushu Medical Center · JPNippon Medical School · JPOsaka University · JPSt. Marianna University School of Medicine · JPToyota Memorial Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background We aimed to clarify associations between prior anticoagulation and short- or long-term clinical outcomes in ischemic stroke or transient ischemic attack patients with nonvalvular atrial fibrillation. Methods and Results A total of 1189 ischemic stroke or transient ischemic attack patients with nonvalvular atrial fibrillation who were hospitalized within 7 days after onset were analyzed. Of these, 813 patients (68.4%) received no prior anticoagulation, 310 (26.1%) received prior warfarin treatment with an international normalized ratio ( INR ) <2 on admission, 28 (2.4%) received prior warfarin treatment with an INR ≥2 on admission, and the remaining 38 (3.2%) received prior direct oral anticoagulant treatment. Prior warfarin treatment was associated with a lower risk of death or disability at 3 months compared with no prior anticoagulation ( INR <2: adjusted odds ratio: 0.58; 95% CI, 0.42-0.81; P=0.001; INR ≥2: adjusted odds ratio: 0.40; 95% CI, 0.16-0.97; P=0.043) but was not associated with a lower risk of death or disability at 2 years. Prior warfarin treatment with an INR ≥2 on admission was associated with a higher risk of ischemic events within 2 years compared with no prior anticoagulation (adjusted hazard ratio: 2.94; 95% CI, 1.20-6.15; P=0.021). Conclusions Prior warfarin treatment was associated with a lower risk of death or disability at 3 months but was not associated with a lower risk of death or disability at 2 years in ischemic stroke or transient ischemic attack patients with nonvalvular atrial fibrillation. Prior warfarin treatment with an INR ≥2 on admission was associated with a higher risk of ischemic events within 2 years. Clinical Trial Registration URL : http://www.clinicaltrials.gov . Unique identifier: NCT 01581502.

Indexed as

Administration, OralAgedAnticoagulantsAtrial FibrillationBrain IschemiaCause of DeathFemaleFollow-Up StudiesHumansIncidenceIschemic Attack, TransientJapanMaleRetrospective StudiesSurvival RateTime FactorsAnticoagulantsWarfarinanticoagulationatrial fibrillationischemic strokeoutcometransient ischemic attack

Identifiers

PMID30691339
PMCPMC6405591
OpenAlexW2914879094

What OpenQuestion holds

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LicenceCC BY-NC
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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.