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.
- © 1959 American Heart Association, Inc.