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High sensitivity troponin

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https://www.readbyqxmd.com/read/28329906/-the-fabry-s-disease-cardiomyopathy-as-differential-diagnosis-of%C3%A2-acute-coronary-syndrome
#1
Daniel Oder, Stefan Störk, Christoph Wanner, Georg Ertl, Frank Weidemann, Peter Nordbeck
The progressive cardiomyopathy in patients with Fabry disease is often accompanied by angina pectoris and elevated levels of high-sensitive troponin T (hs-TnT), potentially mimicking acute coronary syndrome. Here, we present to representative cases with focus on clinical, diagnostic and therapeutic settings. An overview on the cardiomyopathy associated with Fabry disease and its role as differential diagnosis of acute coronary syndrome is provided. Fabry cardiomyopathy might exhibit similar clinical and biochemical constellations as seen in acute coronary syndrome...
March 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28329361/sex-hormones-affect-outcome-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-from-a-stem-cell-derived-cardiomyocyte-based-model-to-clinical-biomarkers-of-disease-outcome
#2
Deniz Akdis, Ardan M Saguner, Khooshbu Shah, Chuanyu Wei, Argelia Medeiros-Domingo, Arnold von Eckardstein, Thomas F Lüscher, Corinna Brunckhorst, H S Vincent Chen, Firat Duru
Aims: Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is characterized by fibrofatty infiltration of the myocardium and ventricular arrhythmias that may lead to sudden cardiac death. It has been observed that male patients develop the disease earlier and present with more severe phenotypes as compared to females. Thus, we hypothesized that serum levels of sex hormones may contribute to major arrhythmic cardiovascular events (MACE) in patients with ARVC/D. Methods and results: The serum levels of five sex hormones, sex hormone-binding globulin, high sensitivity troponin T, pro-brain natriuretic peptide, cholesterol, triglycerides, insulin, and glucose were measured in 54 ARVC/D patients (72% male)...
February 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28325612/cost-effectiveness-of-high-sensitivity-troponin-compared-to-conventional-troponin-among-patients-presenting-with-undifferentiated-chest-pain-a-trial-based-analysis
#3
Billingsley Kaambwa, Julie Ratcliffe, Matthew Horsfall, Carolyn Astley, Jonathan Karnon, Penelope Coates, Margaret Arstall, Christopher Zeitz, Matthew Worthley, John Beltrame, Derek P Chew
BACKGROUND: Patients with low and intermediate risk chest pain features comprise the greatest proportion presenting to emergency services for evaluation of suspected acute coronary syndromes (ACS). The efficient and timely identification of patients with these features remains a major challenge within clinical practice. Troponin assays are increasingly being used for the determination of risk among patients presenting with chest pain potentially facilitating more appropriate care. To date, no economic evaluation comparing high-sensitivity troponin T (hs-TnT) reporting to standard troponin T (c-TnT) reporting in the routine management of suspected ACS and based on longer-term clinical outcomes has been conducted...
March 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28325070/methotrexate-therapy-in-st-segment-elevation-myocardial-infarctions
#4
Daniel Medeiros Moreira, Maria Emilia Lueneberg, Roberto Leo da Silva, Tammuz Fattah, Carlos Antonio Mascia Gottschall
PURPOSE: Methotrexate is an anti-inflammatory drug that has been shown to have anti-ischemic effects. Our aim was to evaluate if methotrexate could reduce infarct size in patients with ST-segment elevation myocardial infarction (STEMI). METHODS: We randomly assigned patients with STEMI to receive either methotrexate or placebo. Primary outcome was infarct size determined by calculating the area under the curve (AUC) for creatine kinase (CK) release. Secondary outcomes were AUC of CK MB (CK-MB) and AUC of troponin I; peak CK, peak CK-MB, and troponin I; B-type natriuretic peptide (BNP) level, high-sensitivity C-reactive protein (hsCRP) result, and erythrocyte sedimentation rate (ESR); left ventricular ejection fraction (LVEF); thrombolysis in myocardial infarction (TIMI) frame count; Killip score; mortality and reinfarction incidence; and incidence of adverse reactions...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28323905/elevated-plasma-levels-of-cardiac-troponin-i-predict-left-ventricular-systolic-dysfunction-in-patients-with-myotonic-dystrophy-type-1-a-multicentre-cohort-follow-up-study
#5
Mark J Hamilton, Yvonne Robb, Sarah Cumming, Helen Gregory, Alexis Duncan, Monika Rahman, Anne McKeown, Catherine McWilliam, John Dean, Alison Wilcox, Maria E Farrugia, Anneli Cooper, Josephine McGhie, Berit Adam, Richard Petty, Cheryl Longman, Iain Findlay, Alan Japp, Darren G Monckton, Martin A Denvir
OBJECTIVE: High sensitivity plasma cardiac troponin-I (cTnI) is emerging as a strong predictor of cardiac events in a variety of settings. We have explored its utility in patients with myotonic dystrophy type 1 (DM1). METHODS: 117 patients with DM1 were recruited from routine outpatient clinics across three health boards. A single measurement of cTnI was made using the ARCHITECT STAT Troponin I assay. Demographic, ECG, echocardiographic and other clinical data were obtained from electronic medical records...
2017: PloS One
https://www.readbyqxmd.com/read/28315120/prognostic-biomarkers-in-acute-coronary-syndromes-risk-stratification-beyond-cardiac-troponins
#6
REVIEW
K M Eggers, B Lindahl
PURPOSE OF REVIEW: Cardiac troponin (cTn) plays an essential role for assessment of outcome in acute coronary syndrome (ACS). However, the prognostic value of cTn is not absolute. In this mini-review, we summarize the evidence on the utility of established biomarkers of left-ventricular dysfunction, hemodynamic stress, inflammation, and renal dysfunction for risk prediction beyond cTn in ACS. RECENT FINDINGS: Only few biomarkers consistently demonstrate additive prognostic value to cTn levels...
April 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28314836/safe-heart-rationale-and-design-of-a-pilot-study-investigating-cardiac-safety-of-her2-targeted-therapy-in-patients-with-her2-positive-breast-cancer-and-reduced-left-ventricular-function
#7
Filipa Lynce, Ana Barac, Ming T Tan, Federico M Asch, Karen L Smith, Chau Dang, Claudine Isaacs, Sandra M Swain
BACKGROUND: Human epidermal growth receptor 2 (HER2) targeted therapies have survival benefit in adjuvant and metastatic HER2 positive breast cancer but are associated with cardiac dysfunction. Current U.S. Food and Drug Administration recommendations limit the use of HER2 targeted agents to patients with normal left ventricular (LV) systolic function. METHODS: The objective of the SAFE-HEaRt study is to evaluate the cardiac safety of HER2 targeted therapy in patients with HER2 positive breast cancer and mildly reduced left ventricular ejection fraction (LVEF) with optimized cardiac therapy...
March 17, 2017: Oncologist
https://www.readbyqxmd.com/read/28314141/assay-validation-of-the-cardiac-isoform-of-troponin-i-in-double-crested-cormorant-phalacrocorax-auritus-plasma-for-diagnosis-of-cardiac-damage
#8
Melissa Daigneault, Kendal E Harr, Karen M Dean, Steven J Bursian
Cardiac abnormalities, initially found in Deepwater Horizon weathered MC252 crude oil exposed Double Crested Cormorants (DCCOs) upon gross necropsy, were further investigated using echocardiography. Clinical and statistically significant changes including decreased ventricular myocardial contractility and arrhythmia were elucidated by echocardiography and interpreted by boarded cardiologists as potentially life threatening. The objective of this investigation was to initiate development of an antemortem, sensitive blood screening test for cardiac damage due to oil exposure of avian species...
March 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28302319/high-sensitivity-cardiac-troponin-t-and-systemic-right-ventricular-function-in-adults-with-congenitally-corrected-transposition-of-the-great-arteries
#9
Ewa Kowalik, Anna Klisiewicz, Justyna Rybicka, Elżbieta K Biernacka, Piotr Hoffman
BACKGROUND: High sensitive troponin T (hsTnT), a marker of myocardial injury, appears to be a promising diagnostic tool in patients with congenital heart disease. However, little is known about its distribution among adults with systemic right ventricle (sRV). We aimed to assess the distribution of hsTnT concentrations in patients with congenitally corrected transposition of the great arteries (ccTGA) and to evaluate its relationship with sRV function and NT-proBNP. METHODS: A cross-sectional study of adults with ccTGA was conducted...
March 11, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28299447/markers-of-physiological-stress-during-exercise-under-conditions-of-normoxia-normobaric-hypoxia-hypobaric-hypoxia-and-genuine-high-altitude
#10
David Richard Woods, John Paul O'Hara, Christopher John Boos, Peter David Hodkinson, Costas Tsakirides, Neil Edward Hill, Darren Jose, Amanda Hawkins, Kelly Phillipson, Antonia Hazlerigg, Nicola Arjomandkhah, Liam Gallagher, David Holdsworth, Mark Cooke, Nicholas Donald Charles Green, Adrian Mellor
PURPOSE: To investigate whether there is a differential response at rest and following exercise to conditions of genuine high altitude (GHA), normobaric hypoxia (NH), hypobaric hypoxia (HH), and normobaric normoxia (NN). METHOD: Markers of sympathoadrenal and adrenocortical function [plasma normetanephrine (PNORMET), metanephrine (PMET), cortisol], myocardial injury [highly sensitive cardiac troponin T (hscTnT)], and function [N-terminal brain natriuretic peptide (NT-proBNP)] were evaluated at rest and with exercise under NN, at 3375 m in the Alps (GHA) and at equivalent simulated altitude under NH and HH...
March 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28298397/predictors-of-obstructive-sleep-apnoea-in-patients-admitted-for-acute-coronary-syndrome
#11
Jordi de Batlle, Cecilia Turino, Alicia Sánchez-de-la-Torre, Jorge Abad, Joaquín Duran-Cantolla, R Douglas McEvoy, Nick A Antic, Olga Mediano, Valentín Cabriada, Maria José Masdeu, Joaquín Teran, Joan Valls, Ferran Barbé, Manuel Sánchez-de-la-Torre
Identifying undiagnosed obstructive sleep apnoea (OSA) patients in cardiovascular clinics could improve their management. Aiming to build an OSA predictive model, a broad analysis of clinical variables was performed in a cohort of acute coronary syndrome (ACS) patients.Sociodemographic, anthropometric, life-style and pharmacological variables were recorded. Clinical measures included blood pressure, electrocardiography, echocardiography, blood count, troponin levels and a metabolic panel. OSA was diagnosed using respiratory polygraphy...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28292587/diagnosis-of-perioperative-myocardial-infarction-after-heart-valve-surgery-with-new-cut-off-point-of-high-sensitivity-troponin-t-and-new-electrocardiogram-or-echocardiogram-changes
#12
Héctor Cubero-Gallego, Mario Lorenzo, María Heredia, Itziar Gómez, Eduardo Tamayo
OBJECTIVE: Criteria for diagnosing myocardial infarction (MI) after heart valve surgery are not collected in the Third Universal Definition of MI. We aimed to define cut-offs for high-sensitivity cardiac troponin T (hs-cTnT) and creatine kinase-MB (CK-MB) for the diagnosis of perioperative MI after heart valve surgery according to perioperative MI determined by new alterations in electrocardiogram (ECG) and/or transthoracic echocardiogram (TTE). Secondary endpoints were incidence of perioperative MI, postoperative complications, 30-day mortality, and 2-year survival...
February 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28283847/increased-plasma-concentrations-of-soluble-st2-independently-predict-mortality-but-not-cardiovascular-events-in-stable-coronary-heart-disease-patients-13-year-follow-up-of-the-karola-study
#13
Vanessa Pfetsch, Veronika Sanin, Andrea Jaensch, Dhayana Dallmeier, Ute Mons, Hermann Brenner, Wolfgang Koenig, Dietrich Rothenbacher
PURPOSE: sST2 (soluble suppression of tumorigenicity 2), a member of the interleukin-1 family, has been suggested to play a role in cardiac remodeling and inflammatory signaling. We assessed the association between sST2 in patients with stable coronary heart disease (CHD) with multiple cardiovascular outcomes and total mortality, simultaneously controlling for a large number of potential confounders. METHODS: Plasma concentrations of sST2 (ELISA, Critical Diagnostics) were measured at baseline in a cohort of 1081 patients...
March 10, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28283497/direct-comparison-of-four-very-early-rule-out-strategies-for-acute-myocardial-infarction-using-high-sensitivity-cardiac-troponin-i
#14
Jasper Boeddinghaus, Thomas Nestelberger, Raphael Twerenbold, Karin Wildi, Patrick Badertscher, Janosch Cupa, Tobias Bürge, Patrick Mächler, Sydney Corbière, Karin Grimm, Maria Rubini Giménez, Christian Puelacher, Samyut Shrestha, Dayana Flores Widmer, Jakob Fuhrmann, Petra Hillinger, Zaid Sabti, Ursina Honegger, Nicolas Schaerli, Nikola Kozhuharov, Katharina Rentsch, Òscar Miró, Beatriz López Barbeito, F Javier Martin-Sanchez, Esther Rodriguez-Adrada, Beata Morawiec, Damian Kawecki, Eva Ganovská, Jiri Parenica, Jens Lohrmann, Wanda Kloos, Andreas Buser, Nicolas Geigy, Dagmar I Keller, Stefan Osswald, Tobias Reichlin, Christian Müller
Background -Four strategies for very early rule-out of acute myocardial infarction (AMI) using high-sensitivity cardiac troponin I (hs-cTnI) have been identified. It remains unclear which strategy is most attractive for clinical application. Methods -We prospectively enrolled unselected patients presenting to the emergency department (ED) with symptoms suggestive of AMI. The final diagnosis was adjudicated by two independent cardiologists. Hs-cTnI levels were measured at presentation and after 1h in a blinded fashion...
March 10, 2017: Circulation
https://www.readbyqxmd.com/read/28281735/high-sensitive-troponin-levels-in-patients-with-chest-pain-and-kidney-disease-a-multicenter-registry-the-tropic-study
#15
Flavia Ballocca, Fabrizio D'Ascenzo, Claudio Moretti, Roberto Diletti, Carlo Budano, Alberto Palazzuoli, Matthew J Reed, Tullio Palmerini, Dariusz Dudek, Alfredo Galassi, Pierluigi Omedè, Nicolas M Mieghem, David Ferenbach, Marco Pavani, Diego Della Riva, Nick L Mills, Ron T Van Domburgh, Andrea Mariani, Artur Dziewierz, Marco di Cuia, Robert Jan van Geuns, Felix Zijlstra, Serena Bergerone, Sebastiano Marra, Giuseppe Biondi Zoccai, Fiorenzo Gaita
BACKGROUND: Accuracy of high sensitive troponin (hs-cTn) to detect coronary artery disease (CAD) in patients with renal insufficiency is not established. The aim of this study was to evaluate the prognostic role of high sensitivity troponin T and I in patients with chronic kidney disease (CKD). METHODS: All consecutive patients with chest pain, renal insufficiency (eGFR < 60 mL/min/1.73 m²) and high sensitive troponin level were included. The predictive value of baseline and interval troponin (hs-cTnT and I) for the presence of CAD was assessed...
March 10, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28279382/trials-of-imaging-use-in-the-emergency-department-for-acute-chest-pain
#16
REVIEW
Gilbert L Raff, Udo Hoffmann, James E Udelson
Over 8 million patients seek emergency department care for acute chest pain annually in the United States alone, and <5% have an acute coronary syndrome. In the absence of overt electrocardiographic or biomarker evidence, expensive and time-consuming diagnostic strategies are frequently required. Beginning in 2000, radionuclide myocardial perfusion, stress echocardiography, cardiac magnetic resonance imaging, and coronary computed tomographic angiography have become increasingly common in evaluating these patients...
March 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28278213/low-mmp-8-timp-1-reflects-left-ventricle-impairment-in-takotsubo-cardiomyopathy-and-high-timp-1-may-help-to-differentiate-it-from-acute-coronary-syndrome
#17
Olavi Parkkonen, Mikko T Nieminen, Paula Vesterinen, Taina Tervahartiala, Markus Perola, Veikko Salomaa, Pekka Jousilahti, Timo Sorsa, Pirkko J Pussinen, Juha Sinisalo
BACKGROUND: Matrix metalloproteinase 8 (MMP-8) is the most potent type-I collagen protease. Such collagen mainly constitutes the transient fibrosis in takotsubo cardiomyopathy (TTC) endomyocardial biopsies. High MMP-8 and tissue-inhibitor of matrix metalloproteinase-1 (TIMP-1) levels are implicated in acute coronary syndrome (ACS). We compared MMP-8 and TIMP-1 levels in consecutive TTC and ACS patients, and their association to TTC severity. METHODS AND RESULTS: In 45 acute serum samples of TTC, 2072 ACS and 1000 controls, TIMP-1 differed between ACS 146...
2017: PloS One
https://www.readbyqxmd.com/read/28275066/cardioversion-efficacy-using-pulsed-biphasic-or-biphasic-truncated-exponential-waveforms-a-randomized-clinical-trial
#18
Anders S Schmidt, Kasper G Lauridsen, Kasper Adelborg, Peter Torp, Leif F Bach, Simon M Jepsen, Nete Hornung, Charles D Deakin, Hans Rickers, Bo Løfgren
BACKGROUND: Several different defibrillators are currently used for cardioversion and defibrillation of cardiac arrhythmias. The efficacy of a novel pulsed biphasic (PB) waveform has not been compared to other biphasic waveforms. Accordingly, this study aims to compare the efficacy and safety of PB shocks with biphasic truncated exponential (BTE) shocks in patients undergoing cardioversion of atrial fibrillation or -flutter. METHODS AND RESULTS: This prospective, randomized study included patients admitted for elective direct current cardioversion...
March 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28274655/high-sensitive-troponin-a-new-tool-for-clinical-decision-making-in-valvular-heart-disease
#19
EDITORIAL
Johanne Frank, Norbert Frey, Derk Frank
No abstract text is available yet for this article.
February 8, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28263716/statistical-considerations-for-determining-high-sensitivity-cardiac-troponin-reference-intervals
#20
Peter E Hickman, Gus Koerbin, Julia M Potter, Walter P Abhayaratna
The troponin 99th percentile is used as the laboratory decision point in the diagnosis of acute myocardial infarction. A recent publication has shown that the statistical treatment for outlier removal may dramatically change the calculated troponin 99th percentile. We have used our large database from the previously reported Canberra Heart Study to independently assess the effect of various methods for removing outliers on the calculated 99th percentile. We have performed the same exercise using the troponin 97...
March 1, 2017: Clinical Biochemistry
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