Evidence map›Paper›PMID 34779140›Full record

ArticleJournal of thrombosis and haemostasis : JTH2022

Switching from vitamin K antagonists to direct oral anticoagulants in non-valvular atrial fibrillation patients: Does low time in therapeutic range affect persistence?

Myrthe M A Toorop, Qingui Chen, Marieke J H A Kruip, Felix J M van der Meer, Melchior C Nierman, Laura Faber, Lies Goede, Suzanne C Cannegieter, Willem M Lijfering

Abstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Observational
  6. Article
  7. Article
  8. The temporal context of oral anticoagulation outcome in atrial fibrillation.International journal of cardiology. Heart & vasculature · 2022
    Article
  9. Article
  10. Prescribing Trends of Oral Anticoagulants from 2010 to 2020 in Shanghai, China: A Retrospective Study.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

9 authors.

Myrthe M A TooropDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.ORCID 0000-0002-3348-2419
Qingui ChenDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.ORCID 0000-0001-9669-0007
Marieke J H A KruipDepartment of Haematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands.
Felix J M van der MeerDepartment of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
Melchior C NiermanThrombosis Service of Amsterdam (Atalmedial), Amsterdam, the Netherlands.
Laura FaberDepartment of Medicine, Red Cross Hospital, Beverwijk, the Netherlands.
Lies GoedeThrombosis Service of Utrecht (Saltro), Utrecht, the Netherlands.
Suzanne C CannegieterDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.ORCID 0000-0003-4707-2303
Willem M LijferingKennisinstituut van de Federatie Medisch Specialisten, Utrecht, the Netherlands.ORCID 0000-0002-4638-4623

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-valvular atrial fibrillation (NVAF) patients are advised to switch from a vitamin K antagonist (VKA) to direct oral anticoagulant (DOAC) when time in therapeutic range (TTR) is low.

objectiveTo examine if pre-switch TTR determines persistence patterns in NVAF patients who are switched from a VKA to DOAC. PATIENTS/

methodsAdult NVAF patients from three Dutch anticoagulation clinics who were newly switched from a VKA to DOAC between July 1, 2013 and September 30, 2018 were stratified by pre-switch TTR levels. DOAC prescription records were examined to determine persistence patterns according to a 100-day prescription gap. Cumulative incidences of non-persistence to DOAC were estimated using the cumulative incidence competing risk method. The association of pre-switch TTR levels with DOAC non-persistence was evaluated by Cox regression models.

resultsA total of 3696 NVAF patients were included, of whom 690 (18.7%) had a pre-switch TTR ≤ 45%. After switching from VKA to DOAC, 14.0% (95% confidence interval [CI] 11.3-17.0%) of the patients with a pre-switch TTR ≤ 45% became non-persistent to DOAC within 1 year, while 9.8% (95% CI 8.7-11.0%) did in those with a pre-switch TTR > 45%. In a multivariable model, a pre-switch TTR ≤ 45% was associated with a higher risk of non-persistence to DOAC (adjusted hazard ratio 1.55, 95% CI 1.22-1.97). Results were similar when using other cut-off points (60% or 70%) to define a low TTR.

conclusionNVAF patients switching from VKA to DOAC due to a low pre-switch TTR saw a worse persistence pattern to DOAC after the switch compared to patients with a high pre-switch TTR.

Indexed as

Atrial FibrillationStrokeAdministration, OralAdultAnticoagulantsHumansVitamin KAnticoagulantsVitamin Katrial fibrillationcoumarinsdirect-acting oral anticoagulantmedication persistencequality control

Identifiers

PMID34779140
PMCPMC9299168

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.