Highlights the clinical and diagnostic features of right atrial myxoma, emphasizing the definitive role of angiocardiography for early detection and surgical cure.
Alerts clinicians to rare right atrial myxoma features in right heart failure; case data leaves open need for prospective diagnostic validation.
A case of myxoma of the right atrium with physiologic, surgical, and angiocardiographic findings has been presented together with a review of 6 other published cases. Several findings have been emphasized that may call attention to the possible diagnosis of right atrial myxoma: right-sided heart failure; intracardiac calcification of the right heart; enlargement of the right ventricle and right atrium; electrocardiographic findings of a prominent P wave and low voltage over right precordium simulating that found in Ebstein's anomaly and marked variation in heart rate not related to any physiologic event or change in rhythm; use of intracavitary electrode catheter to rule out Ebstein's anomaly; and finally, analysis of the right atrial curve may lead one to suspect that other than valvular stenosis is present. Angiocardiography gives a definitive diagnosis. Cure may now be obtained with surgical removal of myxomas; therefore, it is important that they be detected during life.
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Martin S. Belle (1959) studied this question.
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