Fig. 2.

(A, B) On the third hospital day, transthoracic echocardiographic apical four-chamber view (A4C) just after sinus conversion shows an enlargement of the right ventricle (RV) and right atrium (RA), suggestive of RV infarction. The parasternal short-axis view (PSAX) shows no pericardial effusion. LV, left ventricle; LA, left atrium. (C) On the fifth hospital day, transthoracic echocardiographic PSAX reveals high echoic effusion in the pericardial side, indicating a hematoma (orange arrowheads). (D) Computed tomography revealed a high-density lesion around the pericardium on the fifth hospital day, indicating a pericardial hematoma (orange arrowheads). The white arrowhead shows a pericardial drainage catheter, which is ineffective because of pericardial hematoma.