Primary delayed growth of the right and left atrial myxoma

There is more than 58-year experience of surgical treatment of patients with intracardiac myxomas at the Petrovsky National Research Center of Surgery. Primary delayed growth of the right and left atrial myxoma after 21 years and 5 months was observed only in 1 (0.36%) patient. Transthoracic echocardiography was used for diagnosis of tumors. Tumors were totally resected including adjacent parts of myocardium or subendocardial tissue with subsequent cautery. In-hospital mortality was absent. There were no recurrent myxomas throughout subsequent 10-year follow-up.