Surgical resection of a rare biatrial myxoma presenting with tachycardia-induced cardiomyopathy led to significant cardiac functional recovery.
May support resection in rare biatrial myxoma with cardiomyopathy; leaves open need for confirmatory studies.
This is a report of a biatrial cardiac myxoma in a young man with a 10-month history of exertional dyspnea and palpitation. The echocardiogram revealed biatrial myxoma prolapsing through the mitral and tricuspid valves during diastole. All cardiac chambers were enlarged and dysfunctional. The electrocardiogram revealed a rapid ventricular response with atrial flutter rhythm. The masses were resected and diagnosed as myxoma by a histological examination. The follow-up echocardiogram revealed significant improvement in ventricular function and reduction in the cardiac chambers' volume. There was no evidence of myxoma recurrence. The most probable cause of the patient's heart failure was considered to be tachycardia-induced cardiomyopathy.
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Azari et al. (2015) studied this question.