DOI: 10.1177/10760296261503677 ISSN: 1076-0296

Differentiating Coumadin Ridge From Thrombus in Dilated Left Atria: The Value of the Modified Apical 4-Chamber View

Muhammed Emre Güleşir
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We read the study by Walczewski et al. The authors used the LATTEE registry to evaluate left atrial appendage (LAA) thrombus predictors. They call for comprehensive echocardiographic evaluation. We agree. Their analysis covers both sexes. Building on this, we highlight a shared diagnostic pitfall. The issue arises during the initial transthoracic echocardiography (TTE). Clinicians can misidentify the “Coumadin Ridge” (fold of Marshall) as a thrombus. This anatomical illusion affects men and women alike. It happens primarily in dilated left atria.

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