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January 1, 2021Journal of Medical CasesOpen Access

Left Atrial Thrombus Mimicking Myxoma Secondary to Rebound Hypercoagulable State

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Why the study?

Abrupt withdrawal of anticoagulation tilts the balance toward a pro-thrombotic state, highlighting the need for awareness of rebound hypercoagulability and challenges in differentiating cardiac masses.

Population

A 60-year-old man with AFib who abruptly discontinued apixaban

Design

Case report

Authors

MNMuhammad NiaziRutgers, The State University of New JerseyDKDanyal KhanNorthwell HealthAMAhmad MustafaNorthwell Health

Discussion

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Implication

Holding NOACs in AF may precipitate thrombosis; case report leaves open optimal interruption strategies.

Structured PICO

P
Population
60-year-old man with past medical history of atrial fibrillation, pulmonary embolism, and hypertension
I
Intervention
Abrupt discontinuation of apixaban (5 mg twice daily)
O
Outcome
Development of ischemic stroke, brachial artery thrombosis, and left atrial thrombus

Abrupt discontinuation of apixaban can cause a rebound hypercoagulable state, leading to the rapid formation of a large left atrial thrombus and severe thromboembolic events.

Cite This Study

Niazi et al. (2021) studied this question.

synapsesocial.com/papers/6a75f44cfdf0921e0f78668ehttps://doi.org/10.14740/jmc3656
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Thrombolytic Therapy for Acute Left Atrial Thrombus Formation in One Patient With Heart Failure and Atrial Fibrillation2007 · 24 citations
  2. 2Rebound after cessation of oral anticoagulant therapy: the biochemical evidence1996 · 159 citations
  3. 3Atrial Myxomas and Thrombi: Comparison of Imaging Features on CT2009 · 129 citations
  4. 4Rivaroxaban versus Warfarin in Nonvalvular Atrial Fibrillation2011 · 9,490 citations
  5. 5Cardiovascular magnetic resonance imaging for diagnosis and clinical management of suspected cardiac masses and tumours2011 · 142 citations