Key result
Surgical resection of a right atrial myxoma prolapsing into the RV normalizes diastolic septal motion.
Why the study?
Abnormal diastolic movement of the interventricular septum caused by a prolapsing right atrial myxoma and its mechanical effects were not well characterized.
Does surgical resection of a prolapsing right atrial myxoma normalize interventricular septal motion in a patient with mechanical distortion?
Does surgical resection of a prolapsing right atrial myxoma normalize interventricular septal motion in a patient with mechanical distortion?
Surgical resection of a prolapsing right atrial myxoma can normalize abnormal diastolic movement of the interventricular septum caused by mechanical distortion.
Recognize potential reversible septal distortion from right atrial myxoma prolapse on echocardiography; leaves open generalizability beyond this case.
A 40 year old woman with cough and exertional dyspnoea was found to have a large right atrial myxoma by M mode and cross sectional echocardiography. Prolapse of the tumour into the right ventricle occurred during diastole with sufficient force to cause mechanical distortion of the interventricular septum. Septal motion became normal after surgical resection of the myxoma.
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Ramsdale et al. (1986) studied this question. Prolapse of a large right atrial myxoma into the right ventricle caused abnormal diastolic movement of the interventricular septum that normalized after surgical resection.
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