نتایج جستجو برای: cardiac troponin
تعداد نتایج: 281281 فیلتر نتایج به سال:
BACKGROUND The rapid and reliable diagnosis of acute myocardial infarction is a major unmet clinical need. METHODS We conducted a multicenter study to examine the diagnostic accuracy of new, sensitive cardiac troponin assays performed on blood samples obtained in the emergency department from 718 consecutive patients who presented with symptoms suggestive of acute myocardial infarction. Cardi...
BACKGROUND Cardiac troponin T has been found to be accurate predictor of complications and adverse clinical events after pediatric cardiac surgery. Contrary to adult cardiac surgery, the relationship of troponin T to patient survival after pediatric heart surgery has not been previously studied. The purpose of this study was to determine whether troponin T could predict death after pediatric op...
The objective of this multicentre study was to identify the concentrations of cardiac troponin I having a higher probability of cardiovascular and extracardiovascular complications in patients with acute myocardial infarction that were treated with or without fibrinolysis at the intensive care units. These patients were followed for 10 days and divided into two prognostic groups: one without co...
We have shown in genetic myopathic hamsters that cardiac myofibrillar ATPase regulation by calcium is altered and that there are shifts in myosin isozyme distribution (V1----V3) suggesting abnormalities in multiple components of the contractile apparatus. To focus more on the regulatory proteins (troponin and tropomyosin), individual proteins of the skeletal and cardiac actomyosin system were r...
The complex of tropomyosin and troponin binds to actin and inhibits activation of myosin ATPase activity and force production of striated muscles at low free Ca(2+) concentrations. Ca(2+) stimulates ATP activity, and at subsaturating actin concentrations, the binding of NEM-modified S1 to actin-tropomyosin-troponin increases the rate of ATP hydrolysis even further. We show here that the Delta14...
INTRODUCTION The relationship between electrocardiograph (ECG) changes and troponin levels after the emergency orthopaedic surgery are not well characterised. The aim of this study was to determine the correlation between ECG changes (ischaemia or arrhythmia), troponin elevations perioperatively and cardiac complications. MATERIALS AND METHODS One hundred and eighty-seven orthopaedic patients...
Background: With increase in the age there is an increase in both the incidence of hypothyroidism and cardiovascular diseases. We wanted to see whether hypothyroidism caused false positivity in patients who did not have cardiovascular problems or not. In hypothyroid state, creatine kinase leaks into blood. Troponin I in small amount persists in Cytosolic pool (the same site of creatine kina...
Turley and Gedney claim that the cardiac troponin Ic level is a predictor of adverse outcome [1] and that their results support those of King and colleagues [2]. Unfortunately, King and colleagues were unable to demonstrate a link between the troponin Ic level and mortality when using a multivariate model including the Acute Physiology Age and Chronic Health Evaluation II score. Interpretation ...
Cardiac troponin assays have evolved substantially over 20 years, owing to the efforts of manufacturers to make them more precise and sensitive. These enhancements have led to high-sensitivity cardiac troponin assays, which ideally would give measureable values above the limit of detection (LoD) for 100% of healthy individuals and demonstrate an imprecision (CV) of 10% at the 99th percentile. C...
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