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Consideration of a New Definition of Clinically Relevant Myocardial Infarction After Coronary Revascularization: An Expert Consensus
This paper is an expert consensus on the new definition of relevant myocardial infarction following both PCI and CABG. In patients with normal baseline CK-MB, post-procedural MI is defined as a peak CK-MB rise, measured within 48 hours of the procedure, equal or greater than 10-times the local laboratory upper limit of normal (ULN) or equal or greater than 5-times the local laboratory ULN with new pathologic Q-waves in more than 2 contiguous leads or new persistent LBBB, OR in the absence of CK-MB measurements and a normal baseline cTn, a cTn (I or T) level rise, measured within 48 hours of the procedure, greater than 70-times the local laboratory ULN, or greater than 35-times the ULN with new pathologic Q-waves in more than 2 contiguous leads or new persistent LBBB.