Evidence map›Paper›PMID 33576934›Full record

ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2022

Outcomes in patients implanted with a Watchman device in relation to choice of anticoagulation and indication for implant.

Muhammad Ajmal, Mathew D Hutchinson, Kwan Lee, Julia H Indik

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Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 3 pooled it
0.8field-weighted citation impact, top 28% 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

5 citing papers in PubMed, 3 syntheses or guidelines pooled it, 6 citations in OpenAlex.

  1. Pooled it
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  3. Pooled it
  4. Review
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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

4 authors at 1 institution in 1 country.

Muhammad AjmalSarver Heart Center, University of Arizona College of Medicine, 1501 N Campbell Ave, Tucson, AZ, 85724-5037, USA.
Mathew D HutchinsonSarver Heart Center, University of Arizona College of Medicine, 1501 N Campbell Ave, Tucson, AZ, 85724-5037, USA.
Kwan LeeSarver Heart Center, University of Arizona College of Medicine, 1501 N Campbell Ave, Tucson, AZ, 85724-5037, USA.
Julia H IndikSarver Heart Center, University of Arizona College of Medicine, 1501 N Campbell Ave, Tucson, AZ, 85724-5037, USA. jindik@email.arizona.edu.ORCID http://orcid.org/0000-0002-9279-4746
University of Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with atrial fibrillation are increasingly prescribed a direct oral anticoagulant (DOAC) over warfarin and seek to avoid anticoagulation even without a history of major bleeding. This study explores the outcomes of patients implanted with a Watchman device in relation to anticoagulation choice (warfarin versus DOAC) in the post-procedure period and a history of bleeding.

methodsPatients implanted with a Watchman device at a single center were retrospectively analyzed. Characteristics including anticoagulation in the first 45 days and history of major bleed were assessed and efficacy (thromboembolism) and safety (bleeding) outcomes compared by Kaplan-Meier analysis.

resultsTwo hundred nine patients were implanted (57% male, age 74.6 ± 7.8 years) and followed for 23.5 ± 7.1 months. In the first half of patients, 98% were prescribed warfarin, which dropped to 51% in the second half (p < 0.0001). A history of major bleed was present in 80.8% of the first half of patients and decreased to 60% in the second half (p = 0.001). There were 16 safety and 4 efficacy events. There was no difference in safety outcomes according to history of major bleeding or anticoagulant choice in the first 45 days. There was no difference in efficacy outcomes over the duration of follow-up according to anticoagulation choice in the first 45 days.

conclusionsPatients implanted with a Watchman device were increasingly over time prescribed a DOAC and implanted without a history of major bleeding. Bleeding and thromboembolic events were infrequent and related neither to choice of anticoagulant nor to prior major bleeding.

Indexed as

Atrial AppendageAtrial FibrillationStrokeThromboembolismAgedAged, 80 and overAnticoagulantsFemaleHemorrhageHumansMaleRetrospective StudiesTreatment OutcomeWarfarinAnticoagulantsWarfarinBleedingDirect oral anticoagulantLeft atrial appendageStrokeThromboembolismWatchman

Identifiers

PMID33576934
OpenAlexW3128093319

What OpenQuestion holds

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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.