PMC10387763_01
Chest X-ray showing cardiomegaly, prominent pulmonary trunks, and left-sided pleural effusion.
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Chest X-ray showed cardiomegaly, prominent pulmonary trunks, and left-sided pleural effusion (Figure 1).
Electrocardiography showing atrial fibrillation, bifascicular block (right bundle branch block and left anterior fascicular block) with mean heart rate of 50 beats/min.
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Electrocardiography revealed atrial fibrillation, bifascicular block (right bundle branch block and left anterior fascicular block) with mean heart rate of 50 beats/min (Figure 2). 2-D transthoracic echocardiography showed an absence of interatrial septum with SA diameter measuring 106 mm.
Two-dimensional apical four-chamber view showing SA and its size (a and b); color Doppler image showing TR, TRPG = 68 mmHg, and TR velocity = 4.5 m/s (c). (a) SA with biventricle, (b) SA size of 106 mm, and (c) color flow Doppler showing TR, and TRPG.. LV, left ventricle; RV; right ventricle; SA, single atrium; TR, tricuspid regurgitation; TRPG, tricuspid regurgitation pressure gradient.
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There was also severe tricuspid regurgitation [tricuspid regurgitation pressure gradient (TRPG) = 68 mmHg] and dilated main pulmonary artery (Figure 3).