Evidence map›Paper›PMID 34669102›Full record

ArticleCardiovascular drugs and therapy2023

The Comparative Effectiveness and Safety of Different Anticoagulation Strategies for Treatment of Left Atrial Appendage Thrombus in the Setting of Chronic Anticoagulation for Atrial Fibrillation or Flutter.

Karol Kołakowski, Michał M Farkowski, Mariusz Pytkowski, Piotr Gardziejczyk, Ilona Kowalik, Rafał Dąbrowski, Bohdan Firek, Krzysztof Jaworski, Anna Klisiewicz, Aleksander Maciąg

Erratum issuedAbstract read
In one paragraph

Article in Cardiovascular drugs and therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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. Comparison of therapeutic strategies in patients presenting with left atrial thrombus despite oral anticoagulation.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Impact of left atrial appendage flow velocity on thrombus resolution and clinical outcomes in patients with atrial fibrillation and silent left atrial thrombi: insights from the LAT study.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Observational
  6. Practical guide on left atrial appendage closure for the non-implanting physician: an international consensus paper.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
  7. Diagnostic and therapeutic pathways for the malignant left atrial appendage: European Heart Rhythm Association physician survey.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  8. Review
  9. Article
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Karol KołakowskiII Department of Heart Arrhythmia, National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
Michał M FarkowskiII Department of Heart Arrhythmia, National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland. mfarkowski@gmail.com.
Mariusz PytkowskiII Department of Heart Arrhythmia, National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
Piotr GardziejczykII Department of Heart Arrhythmia, National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
Ilona KowalikDepartment of Coronary Artery Disease and Cardiac Rehabilitation, National Institute of Cardiology, Warsaw, Poland.
Rafał DąbrowskiDepartment of Coronary Artery Disease and Cardiac Rehabilitation, National Institute of Cardiology, Warsaw, Poland.
Bohdan FirekDepartment of Coronary Artery Disease and Cardiac Rehabilitation, National Institute of Cardiology, Warsaw, Poland.
Krzysztof JaworskiDepartment of Coronary Artery Disease and Cardiac Rehabilitation, National Institute of Cardiology, Warsaw, Poland.
Anna KlisiewiczDepartment of Congenital Heart Diseases, National Institute of Cardiology, Warsaw, Poland.
Aleksander MaciągII Department of Heart Arrhythmia, National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare effectiveness of different treatments for atrial fibrillation (AF) patients who were scheduled for cardioversion (CV) or ablation (CA) presenting with left atrium appendage (LAA) thrombus despite chronic oral anticoagulation therapy (OAC).

methodsThis was a retrospective cohort study. We analyzed 2014-2019 medical records of patients scheduled for CV or CA of AF who were diagnosed with LAA thrombus despite optimal OAC and had a follow-up transesophageal echocardiogram (TOE). Changes in treatment were divided into the following groups: switch to a drug with different mechanism of action, switch to a drug with similar mechanism of action, initiation of combination therapy, or deliberate no change in treatment. Patients with contraindications to non-vitamin K antagonists were excluded from the analysis.

resultsWe analyzed data of 129 patients comprising 181 cycles of treatment. The overall effectiveness of LAA thrombus dissolution was 51.9% regardless of the number of cycles and 42.6% for the first cycle of treatment. Any change of treatment was more effective than deliberate no change-OR 2.97 [95% CI: 1.07-8.25], P = 0.031, but no particular strategy seemed to be more effective than the other. Left atrium area (OR 0.908 [95% CI: 0.842-0.979]) and number of treatment cycles (OR 0.457 [95% CI: 0.239-0.872]) were both adversely related to thrombus resolution. There was one ischemic and three bleeding adverse events during the treatment.

conclusionLAA thrombus resolution in patients already on OAC may require a change of previous OAC treatment but the overall effectiveness of dissolution seems to be about 50%.

Indexed as

Atrial AppendageAtrial FibrillationHeart DiseasesThrombosisAnticoagulantsEchocardiography, TransesophagealHumansRetrospective StudiesAnticoagulantsAnticoagulationAtrial fibrillationDissolutionLeft atrial appendageResolutionThrombus

Identifiers

PMID34669102
PMCPMC9834361

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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.