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Showing "Elevated troponin without myocardial infarction" PubMed Articles 1–25 of 4,800+

Myocardial Injury in the Era of High-Sensitivity Cardiac Troponin Assays: A Practical Approach for Clinicians.

Traditionally, elevated troponin concentrations were synonymous with myocardial infarction. But with improvements in troponin assays, elevated concentrations without overt myocardial ischemia are now more common; this is referred to as myocardial injury. Physicians may be falsely reassured by the absence of myocardial ischemia; however, recent evidence suggests that myocardial injury is associated with even more detrimental outcomes. Accordingly, this article reviews the definition, epidemiology, differenti...

An emergency medicine approach to troponin elevation due to causes other than occlusion myocardial infarction.

Troponin is an integral component of the evaluation for acute coronary syndrome (ACS) and occlusion myocardial infarction (OMI). However, troponin may be elevated in conditions other than OMI.

Non-ST-elevated myocardial infarction with "N" wave on electrocardiogram and culprit vessel in left circumflex has a risk equivalent to ST-elevated myocardial infarction.

It was found that delayed activation wave often appeared in terminal QRS wave in non-ST-elevated myocardial infarction (NSTEMI) with culprit vessel in left circumflex artery (LCX), yet little is known about the similarities among non-"N"-wave non-ST-elevated myocardial infarction (N-NSTEMI) and ST-elevated myocardial infarction (STEMI).

A Possible Mechanism behind Faster Clearance and Higher Peak Concentrations of Cardiac Troponin I Compared with Troponin T in Acute Myocardial Infarction.

Although cardiac troponin I (cTnI) and troponin T (cTnT) form a complex in the human myocardium and bind to thin filaments in the sarcomere, cTnI often reaches higher concentrations and returns to normal concentrations faster than cTnT in patients with acute myocardial infarction (MI).

Troponin test in clinical daily practice - Differences in the quality criteria for the diagnosis of acute myocardial Infarction considering clinical leading symptoms: A cross-sectional study.

 Cardiac troponins are the prefered cardial biomarker in the diagnosis of acute myocardial infarction. Because they are detectable by myocardial cell damage, no matter what pathophysiology, the interpretation of a positive test is difficult. The aim of this study is to assess the quality criteria of the troponin test in the diagnosis of acute myocardial infarction in everyday life and whether clinical leading symptoms have an influence on it.

Comparison of QT interval variability of coronary patients without myocardial infarction with that of patients with old myocardial infarction.

The significant association of myocardial ischemia with elevated QT interval variability (QTV) has been reported in myocardial infarction (MI) patients. However, the influence of the time course of MI on QTV has not been investigated systematically.

Use of conventional cardiac troponin assay for diagnosis of non-ST-elevation myocardial infarction: 'The Ottawa Troponin Pathway'.

Serial conventional cardiac troponin (cTn) measurements 6-9 hours apart are recommended for non-ST-elevation MI (NSTEMI) diagnosis. We sought to develop a pathway with 3-hour changes for major adverse cardiac event (MACE) identification and assess the added value of the HEART [History, Electrocardiogram (ECG), Age, Risk factors, Troponin] score to the pathway.

An independent observatory in Vendée on ST-elevated acute myocardial infarction (the OVISCA Register). A Departmental evaluation of demographic trends, mortality and delays before treatment.

Mortality from acute myocardial infarction has been falling during the past 30 years. The aim of the study was to evaluate the temporal trends of demographics, mortality rates, and time to treatment in patients admitted for acute ST elevation myocardial infarction (STEMI) in Vendée.

Increasing Nursing Knowledge of ST-Elevated Myocardial Infarction Recognition on 12-Lead Electrocardiograms to Improve Patient Outcomes.

Early identification of ST-elevated myocardial infarction (STEMI) on electrocardiograms (ECGs) is vital to patient outcomes. Therefore, nurses need to have the knowledge to quickly recognize this lethal dysrhythmia.

Acute myocardial infarction in a young elite cyclist: a missed opportunity.

A 27-year-old elite-level professional cyclist presented to the emergency department with a 6-hour history of chest pain and vomiting after prematurely aborting a competitive event. ECG demonstrated anterior ST segment elevation myocardial infarction, and blood tests revealed a grossly elevated high-sensitivity troponin T. Emergent coronary angiography confirmed the presence of a thrombus in the mid-left anterior descending artery with possible spontaneous coronary artery dissection. The patient recovered w...

Prognostic impact of lipoprotein(a) levels during lipid management with statins after ST-elevation acute myocardial infarction.

The causal relationship of lipoprotein(a) with cardiovascular disease has been established. However, clinical impacts of lipoprotein(a) levels on adverse vascular events in patients with established coronary artery disease who are undergoing statin treatment have not been fully elucidated. We measured lipoprotein(a) levels of 668 consecutive patients with ST-elevated myocardial infarction upon admission and reevaluated lipoprotein(a) of 189 of these patients during statin treatment at least 6 months later t...

Application of High-Sensitivity Troponin in Suspected Myocardial Infarction.

Application of High-Sensitivity Troponin in Suspected Myocardial Infarction.

Multi-branch fusion network for Myocardial infarction screening from 12-lead ECG images.

Myocardial infarction (MI) is a myocardial anoxic incapacitation caused by severe cardiovascular obstruction that can cause irreversible injury or even death. In medical field, the electrocardiogram (ECG) is a common and effective way to diagnose myocardial infarction, which often requires a wealth of medical knowledge. It is necessary to develop an approach that can detect the MI automatically.

Application of High-Sensitivity Troponin in Suspected Myocardial Infarction. Reply.

Variation and Disparities in Awareness of Myocardial Infarction Symptoms Among Adults in the United States.

Prompt recognition of myocardial infarction symptoms is critical for timely access to lifesaving emergency cardiac care. However, patients with myocardial infarction continue to have a delayed presentation to the hospital.

Atrial fibrillation: is there a role for cardiac troponin?

Atrial fibrillation (AF) is the most common sustained arrhythmia, and its prevalence rate is expected to be doubled over the next decades. Despite the wide use of biomarkers in the management of different cardiac diseases such as myocardial infarction and heart failure, utilization of biomarkers in AF management is not routinely recommended by current guidelines. There is also growing evidence that higher levels of cardiac-specific troponin, as an intracellular protein involved in cardiomyocyte contraction,...

Clinicopathological complexity in the application of the universal definition of myocardial infarction.

A universal definition of myocardial infarction (UDMI) has been established, periodically updated, and refined over the past twenty years. The primary purpose of the UDMI is to bring uniformity and accuracy to clinical diagnosis. Herein, a review and analysis of the UDMI is presented with emphasis on clinicopathological correlation. Determination of the presence of myocardial injury is based on the detection of abnormal serum cardiac biomarkers, particularly cardiac troponin (cTn), and in the current fourth...

Myocardial Injury After Noncardiac Surgery: Preoperative, Intraoperative, and Postoperative Aspects, Implications, and Directions.

Myocardial injury after noncardiac surgery (MINS) differs from myocardial infarction in being defined by troponin elevation apparently from cardiac ischemia with or without signs and symptoms. Such myocardial injury is common, silent, and strongly associated with mortality. MINS is usually asymptomatic and only detected by routine troponin monitoring. There is currently no known safe and effective prophylaxis for perioperative myocardial injury. However, appropriate preoperative screening may help guide pro...

Rationale for the ASSAIL-MI-trial: a randomised controlled trial designed to assess the effect of tocilizumab on myocardial salvage in patients with acute ST-elevation myocardial infarction (STEMI).

Interleukin-6 (IL-6) may be involved in ischaemia-reperfusion injury and myocardial remodelling after myocardial infarction (MI). We have recently shown that IL-6 inhibition by tocilizumab attenuates systemic inflammation and troponin T-release in patients with acute non-ST elevation MI (NSTEMI). Experimental studies suggest that IL-6 inhibition can limit infarct size through anti-inflammatory mechanisms, but this has not been tested in clinical studies. With the essing the effect of nti--6 treatment in (A...

Protective Effect of Sciadopitysin against Isoproternol-Induced Myocardial Infarction in Rats.

The current study enumerates the beneficial role of sciadopitysin (SDN) against isoproternol (ISO)-induced myocardial infarction (MI) in rats. The MI was experimentally induced via subcutaneous injection of ISO in experimental rats. SDN showed to prevent myocardial necrosis via reducing the levels of creatine kinase-MB and lactate dehydrogenase activities. It also showed to improve myocardial ability and decrease infarct volume. The level of cardiac-specific troponin-T (Tn-T), tumor necrosis factor-α and i...

Prognostic value of ST2 in myocardial infarction.

Soluble Suppression of Tumorigenicity 2 (ST2) is a biomarker of myocardial fibrosis increasingly recognized as a predictor of morbidity and mortality in heart failure. Its role in the prognosis after a myocardial infarction has not been validated to date.

A case of repetitive myocardial infarction with unobstructed coronaries due to Churg-Strauss syndrome.

Myocardial infarction is most commonly caused by thrombosis occurring on a background of coronary atherosclerosis, resulting in reduced coronary flow. Less often, myocardial infarction can occur in the absence of coronary disease. The pathomechanism of myocardial infarction in such patients is heterogeneous and more challenging to diagnose and treat. European Society of Cardiology published a position paper on myocardial infarction in patients with non-obstructive coronary disease, with definitions and reco...

High sensitivity troponin assays: development and utility in a modern healthcare system.

: The introduction of cardiac troponin (cTn) assays have revolutionised the diagnosis and management of acute myocardial infarction in Emergency Departments worldwide. Its success has led to significant research and development investment in this area culminating in the development of newer high sensitivity cardiac troponin assays (hs-cTn). While these newer assays allow for more rapid diagnosis by decreasing the time interval between serial data points, there is an inevitable trade off between increasing s...

Elevated Neutrophil Gelatinase-Associated Lipocalin for the Assessment of Structural versus Functional Renal Damage among ST-Segment Elevation Myocardial Infarction Patients.

Neutrophil gelatinase-associated lipocalin (NGAL) is an early marker of renal tubular damage. We investigated the incidence and possible implications of elevated NGAL levels (suggesting renal damage) compared to both functional and damage markers (manifested as serum creatinine [sCr] elevation) and no NGAL/sCr change, among -ST-elevation myocardial infarction (STEMI) patients treated with primary percutaneous coronary intervention (PCI).

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