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Highly sensitive troponin

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https://www.readbyqxmd.com/read/28434150/high-sensitive-troponin-t-assay-can-predict-anthracycline-and-trastuzumab-induced-cardiotoxicity-in-breast-cancer-patients
#1
Hiromitsu Kitayama, Tomohiro Kondo, Junko Sugiyama, Kazutomo Kurimoto, Yasuhiro Nishino, Masaya Kawada, Michiaki Hirayama, Yasushi Tsuji
BACKGROUND: Trastuzumab following anthracycline causes cardiotoxicity in up to 28% of patients. Although the cardiotoxicity is often irreversible once cardiac dysfunction is detected, the early predictor has not been established yet. METHODS: We prospectively observed breast cancer patients treated with anthracycline or trastuzumab at Tonan Hospital. All patients underwent echocardiography and blood sampling at baseline, and every three months during chemotherapy...
April 22, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28431769/trends-in-admissions-for-chest-pain-after-the-introduction-of-high-sensitivity-cardiac-troponin-t
#2
Nadia Bandstein, Rickard Ljung, Magnus Lundbäck, Magnus Johansson, Martin J Holzmann
BACKGROUND: The aim was to describe temporal trends in admission rates for chest pain and patient outcomes after the clinical introduction of the high-sensitivity cardiac troponin T (hs-cTnT) assay. METHODS: We included all patients aged >25years presenting with chest pain to the emergency department (ED) at our hospital during 2011-2014. For each year, rates of admissions, coronary angiographies, and revascularizations were determined. After adjustment for confounders, hazard ratios (HR) with 95% confidence intervals (CI) were calculated for mortality or major adverse cardiac events (MACE) within 1year of the ED visit per year, using 2011 as referent...
April 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28427736/interactions-between-reciprocal-st-segment-downsloping-during-st-elevated-myocardial-infarction-and-global-cardiac-perfusion-and-functional-abnormalities
#3
Riccardo Liga, Enrico Orsini, Paolo Caravelli, Marco De Carlo, Anna Sonia Petronio, Mario Marzilli
Reciprocal ST-segment downsloping on electrocardiogram is a frequent finding during ST-elevated myocardial infarction (STEMI), but its etiology is still disputed. We sought to evaluate the relation between reciprocal ST-segment downsloping during STEMI and major cardiac perfusion and functional parameters. One hundred eighty-five patients with STEMI underwent emergency coronary angiography. The presence of reciprocal ST-segment downsloping was assessed. At coronary angiography, the corrected TIMI frame count (cTFC) was computed both on culprit and remote vessels and the occurrence of "no/slow reflow" phenomenon after percutaneous coronary intervention (PCI) identified...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28425755/thrombus-aspiration-in-acute-coronary-syndromes-prevalence-procedural-success-change-in-serial-troponin-t-levels-and-clinical-outcomes-in-a-contemporary-swiss-cohort
#4
Soheila Aghlmandi, Nadine Schärer, Dik Heg, Lorenz Räber, Marcel Zwahlen, Baris Gencer, David Nanchen, David Carballo, Sebastian Carballo, Peter Jüni, Arnold von Eckardstein, Ulf Landmesser, Nicolas Rodondi, François Mach, Stephan Windecker, Christian M Matter, Thomas F Lüscher, Roland Klingenberg
BACKGROUND: Randomised controlled trials have provided conflicting results regarding procedural and clinical outcomes of thrombus aspiration combined with percutaneous coronary intervention, when compared with primary percutaneous coronary intervention alone in patients with acute coronary syndromes. METHODS: Acute coronary syndrome patients referred for coronary angiography to four Swiss university hospitals between 2009 and 2012 were enrolled in the SPUM-ACS cohort...
April 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28421838/self-reported-cocaine-use-is-not-associated-with-elevations-in-high-sensitivity-troponin-i
#5
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/28420622/single-high-sensitivity-troponin-test-can-rule-out-mi-evidence-confirms
#6
Jacqui Wise
No abstract text is available yet for this article.
April 17, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28418572/the-single-high-sensitivity-serum-cardiac-troponin-level-a-significant-advance-for-chest-pain-pathways
#7
William G Kussmaul Iii
No abstract text is available yet for this article.
April 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28418520/rapid-rule-out-of-acute-myocardial-infarction-with-a-single-high-sensitivity-cardiac-troponin-t-measurement-below-the-limit-of-detection-a-collaborative-meta-analysis
#8
John W Pickering, Martin P Than, Louise Cullen, Sally Aldous, Ewoud Ter Avest, Richard Body, Edward W Carlton, Paul Collinson, Anne Marie Dupuy, Ulf Ekelund, Kai M Eggers, Christopher M Florkowski, Yonathan Freund, Peter George, Steve Goodacre, Jaimi H Greenslade, Allan S Jaffe, Sarah J Lord, Arash Mokhtari, Christian Mueller, Andrew Munro, Sebbane Mustapha, William Parsonage, W Frank Peacock, Christopher Pemberton, A Mark Richards, Juan Sanchis, Lukas P Staub, Richard Troughton, Raphael Twerenbold, Karin Wildi, Joanna Young
Background: High-sensitivity assays for cardiac troponin T (hs-cTnT) are sometimes used to rapidly rule out acute myocardial infarction (AMI). Purpose: To estimate the ability of a single hs-cTnT concentration below the limit of detection (<0.005 µg/L) and a nonischemic electrocardiogram (ECG) to rule out AMI in adults presenting to the emergency department (ED) with chest pain. Data Sources: EMBASE and MEDLINE without language restrictions (1 January 2008 to 14 December 2016)...
April 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28416522/high-sensitive-cardiac-troponin-for-prediction-of-clinical-heart-failure-are-we-ready-for-prime-time
#9
EDITORIAL
Mauro Gori, Michele Senni, Marco Metra
No abstract text is available yet for this article.
April 18, 2017: Circulation
https://www.readbyqxmd.com/read/28416358/non-gated-high-pitch-computed-tomography-aortic-angiography-myocardial-perfusion-defects-in-patients-with-suspected-aortic-dissection
#10
Li-Ting Huang, Shih-Hung Chan, Chia-Chang Chuang, Yi-Shan Tsai
OBJECTIVES: To investigate the diagnostic value of first-pass myocardial perfusion defects visualised in non-gated high-pitch computed tomography angiography (CTA) in patients admitted to the emergency department (ED) for suspected aortic dissection. METHODS: We recruited 174 ED patients who underwent high-pitch CTA of the aorta because of suspected aortic dissection. We divided these patients into two groups (diseased and control groups) based on whether their clinical data fulfilled the third universal definition of acute myocardial infarction (AMI), specifically an increase in cardiac troponin (cTn) with at least one of the following: (a) symptoms of ischemia; (b) new ST-segment-T wave (ST-T) changes or new left bundle branch block (LBBB); (c) development of pathological Q wave; (d) new loss of viable myocardium or new regional wall motion abnormality; or (e) identification of an intracoronary thrombus by angiography or autopsy...
April 12, 2017: Journal of Cardiovascular Computed Tomography
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
#11
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/28397461/analytical-and-clinical-validation-of-a-point-of-care-cardiac-troponin-t-test-with-an-improved-detection-limit
#12
Carsten Jungbauer, Julian Hupf, Evangelos Giannitsis, Johann Frick, Anna Slagman, Christoph Ehret, Nicolas Herbert, Christine Jung, Rainer Zerback, Thomas Bertsch, Michael Christ
BACKGROUND: The point-of-care test Roche CARDIAC POC Troponin T (PoC TnT) is an improved assay which has been developed for the Roche cobas h 232 system. METHODS: We performed a multicentre evaluation (four sites) to assess the analytical performance of the PoC TnT assay and to compare it with the central laboratory Elecsys® troponin T high sensitive (lab cTnT-hs) assay. RESULTS: The relative mean differences found in method comparisons of PoC TnT vs...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28392226/the-relationship-of-plasma-creatinine-as-egfr-and-high-sensitivity-cardiac-troponin-and-nt-probnp-concentrations-in-a-hospital-and-community-outpatient-population
#13
Julia M Potter, Aaron J Simpson, Jennifer Kerrigan, Emma Southcott, Marie M Salib, Gus Koerbin, Peter E Hickman
OBJECTIVES: While persons with overt renal failure have a well-described rise in troponin and NT-proBNP, it is less well described what the relationship is between cardiac markers and persons with impaired renal function, not requiring dialysis. DESIGN & METHODS: We have collected ALL samples referred to our pathology practice over a 24h period and measured hs-cTnI, hs-cTnT, NT-proBNP, calculated the eGFR, and related our measurements to clinical outcomes. RESULTS: For both men and women, for all of hs-cTnI, hs-cTnT and NT-proBNP, there was a graded response, as renal function worsened, the concentration of the cardiac marker increased...
April 6, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28391559/cardiac-biomarkers-and-the-diagnosis-of-myocardial-infarction-in-women
#14
REVIEW
Anoop S V Shah, Amy V Ferry, Nicholas L Mills
PURPOSE OF REVIEW: Women with suspected acute coronary syndrome are less likely to undergo investigation or receive treatment than men, and women consistently have poorer outcomes. This review summarises how the latest development in cardiac biomarkers could improve both diagnosis and outcomes in women. RECENT FINDINGS: Novel high-sensitivity cardiac troponin assays have identified differences in the reference range and therefore diagnostic threshold for myocardial infarction in men and women...
May 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28383401/establishment-of-a-reference-interval-for-high-sensitivity-cardiac-troponin-i-in-healthy-adults-from-the-sichuan-area
#15
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/28383022/high-sensitivity-assays-for-troponin-in-patients-with-cardiac-disease
#16
REVIEW
Dirk Westermann, Johannes Tobias Neumann, Nils Arne Sörensen, Stefan Blankenberg
Troponin is a widely used biomarker in patients with cardiac disease. The use of troponin is well established in patients with suspected acute myocardial infarction (AMI), but troponin measurement is also used in other acute and nonacute settings. In patients with suspected AMI, early decision-making is crucial to allow rapid treatment and further diagnostic evaluation. Current guidelines recommend serial measurements of troponin with a cut-off concentration at the 99th percentile to triage patients in the emergency department...
April 6, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28382580/the-dynamics-of-cardiovascular-biomarkers-in-non-elite-marathon-runners
#17
Emma Roca, Lexa Nescolarde, Josep Lupón, Jaume Barallat, James L Januzzi, Peter Liu, M Cruz Pastor, Antoni Bayes-Genis
The number of recreational/non-elite athletes participating in marathons is increasing, but data regarding impact of endurance exercise on cardiovascular health are conflicting. This study evaluated 79 recreational athletes of the 2016 Barcelona Marathon (72% men; mean age 39 ± 6 years; 71% ≥35 years). Blood samples were collected at baseline (24-48 h before the race), immediately after the race (1-2 h after the race), and 48-h post-race. Amino-terminal pro-B type natriuretic peptide (NT-proBNP, a marker of myocardial strain), ST2 (a marker of extracellular matrix remodeling and fibrosis, inflammation, and myocardial strain), and high-sensitivity troponin T (hs-TnT, a marker of myocyte stress/injury) were assayed...
April 5, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28379962/persistent-increase-in-cardiac-troponin-t-at-hospital-discharge-predicts-repeat-hospitalization-in-patients-with-acute-decompensated-heart-failure
#18
Seiji Takashio, Toshiyuki Nagai, Yasuo Sugano, Satoshi Honda, Atsushi Okada, Yasuhide Asaumi, Takeshi Aiba, Teruo Noguchi, Kengo F Kusano, Hisao Ogawa, Satoshi Yasuda, Toshihisa Anzai
BACKGROUND: High-sensitive cardiac troponin T (hsTnT) is a sensitive biomarker of myocardial damage and predictor of acute decompensated heart failure (ADHF). However, there is little information on changes over time in hsTnT level during ADHF management. The aim of this prospective study was to evaluate changes in hsTnT levels between admission and at discharge in patients with ADHF, and identify factors that determine such levels and their prognostic significance. METHODS AND RESULTS: We evaluated 404 ADHF patients with abnormal hsTnT levels (≥0...
2017: PloS One
https://www.readbyqxmd.com/read/28377429/circulating-micrornas-potential-markers-of-cardiotoxicity-in-children-and-young-adults-treated-with-anthracycline-chemotherapy
#19
Kasey J Leger, David Leonard, Danelle Nielson, James A de Lemos, Pradeep P A Mammen, Naomi J Winick
BACKGROUND: Biomarkers for early detection of anthracycline (AC)-induced cardiotoxicity may allow cardioprotective intervention before irreversible damage. Circulating microRNAs (miRNAs) are promising biomarkers of cardiovascular disease, however, have not been studied in the setting of AC-induced cardiotoxicity. This study aimed to identify AC-induced alterations in plasma miRNA expression in children and correlate expression with markers of cardiac injury. METHODS AND RESULTS: Candidate plasma profiling of 24 miRNAs was performed in 33 children before and after a cycle of AC (n=24) or noncardiotoxic chemotherapy (n=9)...
April 4, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28377413/quantifying-the-release-of-biomarkers-of-myocardial-necrosis-from-cardiac-myocytes-and-intact-myocardium
#20
Jack Marjot, Thomas E Kaier, Eva D Martin, Shiney S Reji, O'Neal Copeland, Mohammed Iqbal, Bob Goodson, Sarah Hamren, Sian E Harding, Michael S Marber
BACKGROUND: Myocardial infarction is diagnosed when biomarkers of cardiac necrosis exceed the 99th centile, although guidelines advocate even lower concentrations for early rule-out. We examined how many myocytes and how much myocardium these concentrations represent. We also examined if dietary troponin can confound the rule-out algorithm. METHODS: Individual rat cardiac myocytes, rat myocardium, ovine myocardium, or human myocardium were spiked into 400-μ L aliquots of human serum...
April 4, 2017: Clinical Chemistry
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