INTRODUCTION There are still only limited data concerning the use of creatine kinase-MB (CKMB) values for predicting infarct size in long-term follow up in patients with ST-segment elevation myocardial infarction (STEMI) who have undergone primary percutaneous coronary intervention (PCI). The aim of this study was to analyze the correlation between CKMB and both infarct size and left ventricula...

OBJECTIVES The present study was designed to evaluate the clinical relevance of serum cardiac troponinT (cTnT) assay in detection of perioperative myocardial infarction (PMI) after coronary artery bypass grafting (CABG). MATERIALS AND METHODS The clinical utility of cTnT was compared to that of total CK, CKMB mass, CKMB activity and myoglobin. Serial venous blood samples were obtained before ...

Early sensitivities of creatine kinase (CK), CKMB (activity and mass), CKMM and CKMB isoform ratios, myoglobin, cardiac troponin I (cTnI), and cardiac troponin T (cTnT) were compared to find the most sensitive serum marker for acute myocardial infarction (AMI) during the first hours after onset of chest pain. In a prospective study we investigated 37 consecutive patients with AMI who were admit...

BACKGROUND AND AIMS Hemodialysis patients have an enhanced risk for cardiovascular events. Cardiac biomarkers provide useful information for stratifying their risk. However the prognosis value of creatine kinase MB isoenzyme (CKMB) has not yet been validated in this population. The aim of the present study is to determine the predictable value of CK-MB in hemodialysis. METHODS A cohort of 211...

BACKGROUND Cardiac troponin I (cTnI) is a more specific and sensitive biomarker than creatine kinase MB (CKMB) for detection of myocardial damage. We report the prevalence of positive cTnI and CKMB mass among patients hospitalized with suspected acute coronary syndrome (ACS) and the potential impact of use of different reference cutoffs, particularly those proposed by European Society of Cardio...

Troponins are recommended as the biomarkers of choice for the detection of myocardial infarction (MI) by the Universal Definition.1 This is well accepted for the diagnosis of type 1 or spontaneous MI, in which any elevation in the setting of ischemia is required but not for the diagnosis of type 4a or MI associated with percutaneous coronary intervention (PCI), in which an isolated 3 the upper ...

Background: CKMB, the cardiac-specific heterodimer of cytosolic creatine-kinase (CK), is developmentally and physiologically regulated, tissue hypoxia being a proposed regulator. In patients with cyanotic heart disease the myocardium is perfused with partially saturated blood. We questioned whether the myocardium of cyanotic subjects contains higher proportions of CKMB. Materials and Methods: C...

INTRODUCTION AND OBJECTIVES Several biomarkers have been used for evaluation and quantification of myocardial injury after effective ablation. We studied possible different thermal stability and usability of the proteins released by cardiac cells injured by different energy sources. METHODS Firstly, we tested in vitro thermal stability of creatinine kinase (CK), myocardial bound creatinine ki...

PURPOSE To evaluate the efficacy of a systematic model of care for patients with chest pain and no ST segment elevation in the emergency room. METHODS From 1003 patients submitted to an algorithm diagnostic investigation by probability of acute ischemic syndrome. We analyzed 600 ones with no elevation of ST segment, then enrolled to diagnostic routes of median (route 2) and low probability (r...