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What's the optimal duration of anticoagulation in patients with left ventricular thrombus?

Fang Qin Goh1, Ching-Hui Sia2,3, Mark Y Chan2,3

  • 1Department of Medicine, National University Hospital, National University Health System, Singapore.

Expert Review of Cardiovascular Therapy
|October 13, 2023
PubMed

Insights

The optimal duration for anticoagulation therapy in left ventricular thrombus (LVT) remains unclear. Further research is needed to guide treatment decisions and minimize risks of stroke or bleeding.

Area of Science:

  • Cardiology
  • Cardiovascular Imaging
  • Thrombosis Management

Background:

  • Left ventricular thrombus (LVT) is a complication of myocardial infarction and cardiomyopathies, posing a risk for embolic stroke.
  • Current guidelines recommend 3-6 months of anticoagulation for LVT, but evidence is limited.
  • The optimal duration is debated due to risks of bleeding with prolonged therapy and embolism with premature cessation.

Purpose of the Study:

  • To review current recommendations and expert opinions on anticoagulation duration for LVT.
  • To highlight the role of cardiac magnetic resonance imaging (CMR) in guiding treatment decisions.
  • To identify areas for future research in LVT management.

Main Methods:

  • Review of existing guidelines and expert consensus statements.
  • Discussion of the diagnostic utility of echocardiography versus CMR for LVT detection.
  • Analysis of factors influencing decisions for prolonged anticoagulation.

Main Results:

  • No randomized trials exist for LVT anticoagulation duration.
  • Expert consensus suggests 3-6 months of anticoagulation, with cessation upon thrombus resolution.
  • CMR is more sensitive than echocardiography for LVT and may guide surveillance.
  • Prolonged anticoagulation may be considered for persistent, mobile, or protuberant LVT, or in patients with impaired LV function.

Conclusions:

  • Cardiac magnetic resonance imaging (CMR) is emerging as a key tool for LVT surveillance to guide anticoagulation.
  • Further research is essential to determine the benefits of prolonged anticoagulation in specific LVT patient subgroups.
  • Personalized treatment strategies are needed to balance embolic risk and bleeding complications.
Abstract

Keywords:
Cardiac imagingcardiac magnetic resonance imagingcardiomyopathyechocardiographyleft ventricular thrombusthrombosis

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