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Transient total occlusion of the mitral valve orifice by a free-floating left atrial ball thrombus

Omer Alyan1, Ozcan Ozdemir, Fehmi Kacmaz

  • 1Türkiye Yüksek Ihtisas Hospital, Cardiology Clinics, Ankara, Turkey. droalyan@yahoo.com

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
|February 3, 2006
PubMed

Insights

A rare free-floating ball thrombus in the left atrium (LA) can cause sudden death in mitral stenosis (MS) patients. Early diagnosis and treatment of this LA thrombus are crucial to prevent severe outcomes.

Area of Science:

  • Cardiology
  • Cardiovascular Medicine
  • Medical Imaging

Background:

  • Mitral stenosis (MS) is a narrowing of the mitral valve, often leading to complications.
  • Free-floating ball thrombi in the left atrium (LA) are exceptionally rare in MS.
  • These thrombi pose a significant risk of systemic emboli and sudden death.

Observation:

  • This report details a case of a free-floating ball thrombus within the LA cavity.
  • Transthoracic echocardiography visualized the thrombus and its transient complete occlusion of the stenotic mitral valve.
  • The thrombus temporarily blocked blood flow through the narrowed mitral valve.

Findings:

  • Demonstration of a free-floating ball thrombus in the left atrium of an MS patient.
  • Echocardiographic evidence of transient complete mitral valve obstruction by the thrombus.
  • Confirmation of a rare but life-threatening complication of mitral stenosis.

Implications:

  • Highlights the critical need for awareness of LA ball thrombi in MS.
  • Emphasizes the importance of early diagnosis through echocardiography.
  • Underscores that prompt treatment can significantly reduce morbidity and mortality in these high-risk patients.

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