We report a case who had myocardial ischemia after release of the aort
ic cross clamp during mitral valve replacement. Myocardial ischemia wa
s visually estimated by use of intraoperative MCE (myocardial contrast
echocardiography). After appropriate treatment the ischemic area disa
ppeared and the patient showed a good postoperative course. MCE is a u
seful method with which to detect visually the wash out pattern of car
dioplegia from myocardium after reperfusion during open heart surgery.