Evidence map›Paper›PMID 27067661›Full record

ArticleScientific reports2016

Major Bleeding in Patients with Non-Valvular Atrial Fibrillation: Impact of Time in Therapeutic Range on Contemporary Bleeding Risk Scores.

Marco Proietti, Keitaro Senoo, Deirdre A Lane, Gregory Y H Lip

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 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

14 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Trial
  6. Review
  7. Review
  8. Article
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  11. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Marco ProiettiUniversity of Birmingham Institute of Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom.
Keitaro SenooUniversity of Birmingham Institute of Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom.
Deirdre A LaneUniversity of Birmingham Institute of Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom.
Gregory Y H LipUniversity of Birmingham Institute of Cardiovascular Sciences, City Hospital, Birmingham, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bleeding risk represents a major concern in anticoagulated patients with atrial fibrillation (AF). Several bleeding prediction scores have been described: HAS-BLED, ATRIA, HEMORR2HAGES and ORBIT. Of these, only HAS-BLED considers quality of anticoagulation control amongst vitamin K antagonist (VKA) users. We hypothesised that predictive value of bleeding risk scores other than HAS-BLED could be improved incorporating time in therapeutic range (TTR) in warfarin-treated patients. Of the 127 adjudicated major bleeding events, 21.3% of events occurred in 'low-risk' HAS-BLED category (1.8 per 100 patient-years), compared to higher proportions (≥50% of events; ~2.5 per 100 patient-years) in 'low-risk' categories for other scores. Only the 'low-risk' HAS-BLED category was associated with the absence of investigator-defined major bleeding events (OR: 1.46;95% CI: 1.00-2.15). 'High' or 'medium/high' risk categories for the HAS-BLED (p = 0.023) or ORBIT (p = 0.022) scores, respectively, conferred significant risk for adjudicated major bleeding events. On Cox regression analysis, adjudicated major bleeding was associated only with HAS-BLED (HR: 1.62;95% CI: 1.06-2.48) and ORBIT (HR: 1.83;95% CI: 1.08-3.09) 'high-risk' categories. Adding 'labile INR' (TTR < 65%) to ORBIT, ATRIA and HEMORR2HAGES significantly improved their reclassification and discriminatory performances. In conclusion, HAS-BLED categorised adjudicated major bleeding events in low-risk and high-risk patients appropriately, whilst ORBIT and ATRIA categorised most major bleeds into their 'low-risk' patient categories. Adding TTR to ORBIT, ATRIA and HEMORR2HAGES led to improved predictive performance for major bleeding.

Indexed as

Decision Support TechniquesAgedAnticoagulantsAtrial FibrillationFemaleHemorrhageHumansMaleRandomized Controlled Trials as TopicRisk AssessmentTime FactorsWarfarinAnticoagulantsWarfarin

Identifiers

PMID27067661
PMCPMC4828703

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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.