P1245 Huge left atrial myxoma masks mitral regurgitation

A 61-year-old gentleman, he had shortness of breath while few weeks and getting worse, was presented to our hospital. His oxygen saturation was 94 %(O2 5L) and no crackles or rales were heard. His electrocardiogram was sinus tachycardia, and chest X-ray showed cardiomegaly and BNP level was elevated (260.3pg/mL). Transthoracic echocardiography (TTE) revealed huge mass(57 × 39mm) occupying left atrium (LA), the mass was flexible in cardiac cycle...