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J Am Coll Cardiol, 1987; 9:701-703
© 1987 by the American College of Cardiology Foundation
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Doppler echocardiographic profiles in obstructive right and left atrial myxomas

VD Goli, U Thadani, Thomas SR, WF Voyles, and SM Teague

Previous reports have suggested that atrioventricular (AV) flow disturbances accompanying atrial myxomas mimic mitral stenosis. Two patients complaining of orthostatic syncope and positional intolerance had a large right and left atrial myxoma, respectively. Doppler flow records showed abrupt early diastolic flow cessation and normal velocity half-times, unlike AV valve stenosis. Large, obstructing atrial myxomas may behave as ball valves.




 
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