Left atrial myxoma can cause intermittent left ventricular outflow tract obstruction, potentially leading to syncope and sudden death.
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Alerts clinicians to consider myxoma in unexplained syncope with dynamic LVOT findings; leaves open prevalence and management questions.
Echocardiography showed that a patient with left atrial myxoma had intermittent ob struction of the left ventricular outflow tract. Obstruction was caused either by the tumor itself or by displacement of the anterior leaflet of the mitral valve into the outflow tract. Outflow tract obstruction, in con tradistinction to inflow tract obstruction, may be a cause of syncope and sudden death in left atrial myxoma.
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Burke et al. (1979) studied this question.
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