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Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
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Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

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Acute myocardial infarction, intraventricular thrombus and risk of systemic embolism

Stepan Hudec1, Martin Hutyra1, Jan Precek1

  • 1Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic.

Biomedical Papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia
|February 13, 2020
PubMed

Insights

Left ventricular thrombus (LVT) after acute myocardial infarction (AMI) poses a risk of systemic embolism. Warfarin anticoagulation for 6 months is recommended for diagnosed LVT, but prophylactic warfarin in high-risk AMI patients is not advised.

Area of Science:

  • Cardiology
  • Cardiovascular Medicine
  • Thrombosis Research

Background:

  • Left ventricular thrombus (LVT) is a serious complication of acute myocardial infarction (AMI).
  • Systemic embolism (SE) from LVT increases patient mortality and morbidity.
  • Identifying the source of cardiac emboli is crucial for secondary prevention.

Purpose of the Study:

  • To review the diagnosis and management of left ventricular thrombus (LVT) following acute myocardial infarction (AMI).
  • To assess the efficacy and risks of anticoagulant therapies for LVT.
  • To provide guidance on secondary prevention strategies for patients with LVT.

Main Methods:

  • Echocardiography, particularly with contrast enhancement, is vital for LVT diagnosis.
  • Cardiac magnetic resonance imaging serves as the gold standard but is not for initial screening.
  • Review of current evidence on anticoagulant therapies, including warfarin and direct oral anticoagulants (DOACs).

Main Results:

  • Diagnosed LVT requires at least 6 months of warfarin anticoagulation with echocardiographic follow-up.
  • Prophylactic warfarin in high-risk anterior AMI patients does not improve outcomes and increases bleeding risk.
  • Insufficient evidence currently supports the use of DOACs for LVT in this context.

Conclusions:

  • Early diagnosis and appropriate anticoagulation are key in managing LVT post-AMI.
  • Warfarin remains a standard treatment for diagnosed LVT, while prophylactic use is not recommended.
  • Further research is needed to establish the role of newer anticoagulants like DOACs.

Keywords:
ST segment elevation myocardial infarctionleft ventricular thrombusstrokesystemic arterial embolismtherapy

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