Wood who first applied the term ball valve thrombus to this entity in
year 1814, describe autopsy finding in 15 year old girl with rheumatic mitral
valve stenosis and syncope.
Left atrial ball valve thrombus is an important pathology and left atrial (LA) ball thrombus is a rare disorder. It is most often associated with rheumatic mitral valve stenosis. However it has been reported without mitral stenosis also.
However, left atrial ball thrombi have rarely been reported in patients who have had no mitral valvular disease. A left atrial ball thrombus in non-rheumatic atrial fibrillation was first described in 1992.
The restricted mitral orifice encloses the free-floating thrombus in the LA. Ball valve thrombus in the left atrium (LA) is a spherical clot which is freely mobile and intermittently occludes the mitral valve orifice.
There is a potential for fatal systemic emboli or mitral valve orifice occlusion that may result in sudden death.
Almost all patients with a left atrial free floating ball thrombus have atrial fibrillation. Concomitant cardiac diseases besides of mitral stenosis are post mitral valve replacement, myocardial infarction, myocarditis, hypertrophic cardiomyopathy and infective endocarditis.
Left atrial ball valve thrombus is an important pathology and left atrial (LA) ball thrombus is a rare disorder. It is most often associated with rheumatic mitral valve stenosis. However it has been reported without mitral stenosis also.
This phenomenon
is seen in 17% of patients with severe mitral stenosis, and the risk doubles
with atrial fibrillation.
However, left atrial ball thrombi have rarely been reported in patients who have had no mitral valvular disease. A left atrial ball thrombus in non-rheumatic atrial fibrillation was first described in 1992.
The restricted mitral orifice encloses the free-floating thrombus in the LA. Ball valve thrombus in the left atrium (LA) is a spherical clot which is freely mobile and intermittently occludes the mitral valve orifice.
There is a potential for fatal systemic emboli or mitral valve orifice occlusion that may result in sudden death.
Almost all patients with a left atrial free floating ball thrombus have atrial fibrillation. Concomitant cardiac diseases besides of mitral stenosis are post mitral valve replacement, myocardial infarction, myocarditis, hypertrophic cardiomyopathy and infective endocarditis.
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