Incremental Value of the Leukocyte Differential and the Rapid Creatine Kinase-MB Isoenzyme for the Early Diagnosis of Myocardial Infarction

Abstract

The presence of both a relative lymphocytopenia and an elevated rapid creatine kinase-MB level was an accurate early marker of myocardial infarction that appeared to improve the sensitivity of early diagnosis compared with that of ST-segment elevation alone.