on behalf of the J-MINUET investigators Background: New criteria for diagnosis of acute myocardial infarction (AMI) were proposed in 2000 as a universal definition, in which cardiac troponin (cTn) was the preferred biomarker. A large number of patients formerly classified by creatine kinase (CK) as unstable angina are now ruled-in by cTn as non-ST-elevation myocardial infarction (NSTEMI).
This study showed that incidental CAD was found in 10% of Japanese patients with tako-tsubo cardiomyopathy. In patients with CAD in the LAD, it should be carefully judged whether the CAD causes left ventricular apical ballooning to avoid performing coronary revascularization unnecessarily.
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