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High sensitive troponin I

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https://www.readbyqxmd.com/read/28421838/self-reported-cocaine-use-is-not-associated-with-elevations-in-high-sensitivity-troponin-i
#1
Candice D Jordan, Frederick K Korley, Andrew I Stolbach
OBJECTIVE: High-sensitivity troponin (hsTn) assays detect 10 times lower concentrations of cardiac troponin than conventional assays. We examined the effects of self-reported cocaine use to determine whether those with acute cocaine use being evaluated for ACS are more likely to have elevated hsTnI than those nonusers being evaluated for ACS. METHODS: We conducted a sub-analysis of a prospective cohort of ED patients evaluated for acute coronary syndrome. Recent cocaine use was determined by structured patient interviews...
June 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28398455/systematic-evaluation-of-endothelin-1-measurement-relative-to-traditional-and-modern-biomarkers-for-clinical-assessment-and-prognosis-in-patients-with-chronic-systolic-heart-failure-serial-measurement-and-multimarker-testing
#2
Hanna K Gaggin, Quynh A Truong, Parul U Gandhi, Shweta R Motiwala, Arianna M Belcher, Rory B Weiner, Aaron L Baggish, James L Januzzi
Objectives: To define the role of single or serial measurement of endothelin 1 (ET-1) for prognostication beyond traditional and modern markers of risk in heart failure (HF). Methods: In total, 115 patients with chronic systolic HF were followed for 10 months. Clinical assessment and ET-1, N-terminal pro-B-type natriuretic peptide (NT-proBNP), highly sensitive troponin I (hsTnI), soluble ST2 (sST2), and galectin 3 were measured at each visit. Results: Elevated ET-1 was associated with worse HF, lower right ventricular function, higher pulmonary pressure, and higher left atrial volume index despite similar left ventricular function...
April 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28383401/establishment-of-a-reference-interval-for-high-sensitivity-cardiac-troponin-i-in-healthy-adults-from-the-sichuan-area
#3
Shunjun Li, Yue Zuo, Wenfang Huang
High-sensitivity cardiac troponin I (hs-cTnI) has been used in the diagnosis and risk stratification of acute myocardial infarction. However, there is no common consensus on an hs-cTnI reference interval for the Chinese population. The aim of this study was to describe the distribution of hs-TnI and establish the 99th percentile reference interval for hs-cTnI in healthy adults from the Sichuan area.Serum specimens were collected from 1485 healthy adults (731 men and 754 women ranging in age from 18 to 85 years) in Sichuan Provincial People's Hospital...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28377153/clinical-performance-of-cardiac-troponin-i-a-comparison-between-the-poct-aqt90-flex-and-the-dimension-vista-analyzer-in-an-emergency-setting
#4
Monica Maria Mion, Giada Bragato, Alessandra Casarotti, Chiara Cosma, Stefania Vigolo, Gianna Vettore, Franco Tosato, Martina Zaninotto, Mario Plebani
BACKGROUND: Cardiac troponin [cTn (I or T)] is the preferred biomarker for the diagnosis of myocardial infarction (MI). AIM: We studied the analytical performance of the POCT AQT90 FLEX cTnI assay and its diagnostic accuracy, in comparison to the Dimension Vista cTnI method, in patients presenting to the Emergency Department (ED) with suspect of acute coronary syndrome (ACS). METHODS: 786 consecutive patients were enrolled. cTnI was measured at admission to the ED and about 3 and 6 hours later...
April 1, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28368516/validation-of-the-origin-cardiovascular-biomarker-panel-and-the-value-of-adding-troponin-i-in-dysglycemic-people
#5
Hertzel C Gerstein, Guillaume Paré, Matthew J McQueen, Shun Fu Lee, Sibylle Hess
Background: Analyses of stored blood from the ORIGIN trial (Outcomes Reduction with an Initial Glargine Intervention) identified biomarkers that supplemented clinical risk factors for cardiovascular (CV) events or death. Their performance in participants with diabetes in the Heart Outcomes Prevention Evaluation (HOPE) study, and the incremental value of adding high sensitivity troponin I (hsTnI) in the ORIGIN study was assessed. Methods: Levels of the 10 ORIGIN biomarkers for the composite cardiovascular outcome of myocardial infarction, stroke or CV death were measured in 350 HOPE study participants with diabetes and stored serum that included all 77 who experienced this outcome...
March 24, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28366473/correlation-of-corrected-qt-interval-with-quantitative-cardiac-troponin-i-levels-and-its-prognostic-role-in-non-st-elevation-myocardial-infarction
#6
Satyam Rajvanshi, Ranjit Nath, Manoj Kumar, Ankit Gupta, Neeraj Pandit
BACKGROUND: Non-ST-elevation Myocardial Infarction (NSTEMI) subgroup of ACS has wide variability in patient prognosis. Risk stratification in NSTE-ACS is essential for deciding about early management. Corrected QT interval estimation is one tool which has utility in bedside risk stratification. Whether it differentiates NSTEMI patients into different risk groups is the contention of this study. OBJECTIVE: To assess (1) correlation between maximum corrected QT interval (QTc) and cardiac Troponin I (cTnI) levels; (2) if prolonged corrected QT interval is an independent predictor of higher MACE in NSTEMI patients...
March 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28347675/equal-clinical-performance-of-a-novel-point-of-care-cardiac-troponin-i-ctni-assay-with-a-commonly-used-high-sensitivity-ctni-assay
#7
Per Venge, Lian van Lippen, Sabine Blaschke, Michael Christ, Felicitas Geier, Evangelos Giannitsis, Emil Hagström, Pierre Hausfater, Mehdi Khellaf, Johannes Mair, David Pariente, Volkher Scharnhorst, Veronique Semjonow
BACKGROUND: Efficient rule-out of acute myocardial infarction (MI) facilitates early disposition of chest pain patients in emergency departments (ED). Point-of-care (POC) cardiac troponin (cTn) may improve patient throughput. We compared the diagnostic accuracy of a novel cTnI test (Minicare cTnI, Philips), with current POC cTnI (I-Stat, Abbott) and high-sensitivity central laboratory cTnI (hs-cTnI; Architect, Abbott) assays. METHODS: The clinical performance of the assays were compared in samples from 450 patients from a previous clinical evaluation of Minicare cTnI...
March 25, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28344141/single-high-sensitivity-cardiac-troponin-i-to-rule-out-acute-myocardial-infarction
#8
Yader Sandoval, Stephen W Smith, Sara A Love, Anne Sexter, Karen Schulz, Fred S Apple
PURPOSE: Examine the performance of single high-sensitivity cardiac troponin I (hs-cTnI) measurement strategies to rule-out acute myocardial infarction. METHODS: Prospective, observational study of consecutive patients presenting to the emergency department (n=1,631) in whom cTnI measurements where obtained using an investigational hs-cTnI assay. Negative predictive value (NPV) and sensitivity for the a) diagnosis of acute myocardial infarction, type 1 myocardial infarction, and type 2 myocardial infarction and b) safety outcome of acute myocardial infarction or cardiac death at 30 days using hs-cTnI less than the limit of detection (LoD) (<1...
March 23, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28333976/early-diagnosis-of-acute-myocardial-infarction-using-high-sensitivity-troponin-i
#9
Johannes Tobias Neumann, Nils Arne Sörensen, Francisco Ojeda, Thomas Renné, Renate B Schnabel, Tanja Zeller, Mahir Karakas, Stefan Blankenberg, Dirk Westermann
OBJECTIVE: There is a clinical need for early and accurate diagnosis of acute myocardial infarction (AMI). Current European Society of Cardiology (ESC) guidelines recommend diagnosis of non-ST-elevation AMI based on serial troponin measurements. We aimed to challenge the ESC guidelines using 1) a high-sensitivity troponin I (hs-TnI) baseline cutoff, 2) an absolute hs-TnI change after 1 hour and 3) additional application of an ischemic ECG. METHODS: 1,516 patients with suspected AMI presenting to the emergency department were included...
2017: PloS One
https://www.readbyqxmd.com/read/28330661/association-between-high-sensitivity-cardiac-troponin-levels-and-myocardial-ischemia-during-mental-stress-and-conventional-stress
#10
Muhammad Hammadah, Ibhar Al Mheid, Kobina Wilmot, Ronnie Ramadan, Ayman Alkhoder, Malik Obideen, Naser Abdelhadi, Shuyang Fang, Ijeoma Ibeanu, Pratik Pimple, Heval Mohamed Kelli, Amit J Shah, Brad Pearce, Yan Sun, Ernest V Garcia, Michael Kutner, Qi Long, Laura Ward, J Douglas Bremner, Fabio Esteves, Paolo Raggi, David Sheps, Viola Vaccarino, Arshed A Quyyumi
OBJECTIVES: This study sought to investigate whether patients with mental stress-induced myocardial ischemia will have high resting and post-mental stress high-sensitivity cardiac troponin I (hs-cTnI). BACKGROUND: Hs-cTnI is a marker of myocardial necrosis, and its elevated levels are associated with adverse outcomes. Hs-cTnI levels may increase with exercise in patients with coronary artery disease. Mental stress-induced myocardial ischemia is also linked to adverse outcomes...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28325070/methotrexate-therapy-in-st-segment-elevation-myocardial-infarctions
#11
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
#12
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/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
#13
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
#14
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
#15
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/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
#16
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
#17
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
#18
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 hs-cTn 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 hs-cTnI) for the presence of CAD was assessed...
2017: Cardiology Journal
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
#19
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
#20
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
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