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Núñez-Marín G, Iraola D, Lorenzo M, de la Espriella R, Villar S, Santas E, Miñana G, Sanchis J, Carratalá A, Miró Ò, Bayés-Genís A, Núñez J. An update on utilising brain natriuretic peptide for risk stratification, monitoring and guiding therapy in heart failure. Expert Rev Mol Diagn 2023:1-13. [PMID: 37216616 DOI: 10.1080/14737159.2023.2216386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/04/2023] [Accepted: 05/16/2023] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Heart failure (HF) is a dominant health problem with an overall poor prognosis. Natriuretic peptides (NPs) are upregulated in HF as a compensatory mechanism. They have extensively been used for diagnosis and risk stratification. AREAS COVERED This review addresses the history and physiology of NPs in order to understand their current role in clinical practice. It further provides a detailed and updated narrative review on the utility of those biomarkers for risk stratification, monitoring, and guiding therapy in HF. EXPERT OPINION NPs show excellent predictive ability in heart failure patients, both in acute and chronic settings. Understanding their pathophysiology and their modifications in specific situations is key for an adequate interpretation in specific clinical scenarios in which their prognostic value may be weaker or less well evaluated. To better promote risk stratification in HF, NPs should be integrated with other predictive tools to develop multiparametric risk models. Both inequalities of access to NPs and evidence caveats and limitations will need to be addressed by future research in the coming years.
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Affiliation(s)
- Gonzalo Núñez-Marín
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Diego Iraola
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Miguel Lorenzo
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Rafael de la Espriella
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Sandra Villar
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Enrique Santas
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Gema Miñana
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Juan Sanchis
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
| | - Arturo Carratalá
- Clinical Chemistry Department, Hospital Clínico Universitario, INCLIVA
| | - Òscar Miró
- Emergency Department, Hospital Clínic, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Antoni Bayés-Genís
- Cardiology Department, Hospital Universitari Germas Trias i Pujol. Badalona, Spain
- CIBER Cardiovascular, Madrid, Spain
| | - Julio Núñez
- Cardiology Department, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia. Valencia, Spain. Valencia, Spain
- Emergency Department, Hospital Clínic, IDIBAPS, University of Barcelona, Barcelona, Spain
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Ueno K, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Yanagi N, Maekawa E, Yamaoka‐Tojo M, Matsunaga A, Ako J. Relationship between high-sensitivity cardiac troponin T, B-type natriuretic peptide, and physical function in patients with heart failure. ESC Heart Fail 2021; 8:5092-5101. [PMID: 34490747 PMCID: PMC8712903 DOI: 10.1002/ehf2.13577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/05/2021] [Accepted: 08/11/2021] [Indexed: 12/28/2022] Open
Abstract
AIMS High-sensitivity cardiac troponin T (hs-cTnT) and B-type natriuretic peptide (BNP) are associated with prognosis and severity in patients with heart failure (HF); however, their association with physical function is unclear. This study aimed to investigate whether hs-cTnT and BNP levels are associated with physical function in patients with HF. METHODS AND RESULTS Hs-cTnT, BNP, and physical function (maximal quadriceps isometric strength [QIS], usual gait speed, and 6-min walk distance [6MWD]) were evaluated in 363 consecutive patients with HF (median age, 70 [60-78] years). Patients were divided into four groups according to their median hs-cTnT and BNP levels. After adjusting for demographic characteristics, laboratory levels, and HF severity, higher hs-cTnT and BNP levels were significantly associated with lower physical function (log hs-cTnT, β = -0.162, P = 0.001, for maximal QIS; β = -0.175, P = 0.002, for usual gait speed, and β = -0.129, P = 0.004, for 6MWD; log BNP, β = -0.090, P = 0.092, for maximal QIS, β = 0.038, P = 0.516, for usual gait speed, and β = -0.108, P = 0.023, for 6MWD). In addition, the high hs-cTnT and high BNP group had significantly lower physical function (all P < 0.05) than the low hs-cTnT and low BNP group. CONCLUSIONS Higher hs-cTnT and BNP levels are both associated with lower physical function in patients with HF, but hs-cTnT levels showed a more consistent association. The combination of hs-cTnT and BNP may be effective for the stratification of physical function in patients with HF.
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Affiliation(s)
- Kensuke Ueno
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
| | - Kentaro Kamiya
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
- Department of Rehabilitation, School of Allied Health SciencesKitasato UniversitySagamiharaJapan
| | - Nobuaki Hamazaki
- Department of RehabilitationKitasato University HospitalSagamiharaJapan
| | - Kohei Nozaki
- Department of RehabilitationKitasato University HospitalSagamiharaJapan
| | - Takafumi Ichikawa
- Department of RehabilitationKitasato University HospitalSagamiharaJapan
| | - Masashi Yamashita
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
| | - Shota Uchida
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
| | - Naoya Yanagi
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
| | - Emi Maekawa
- Department of Cardiovascular Medicine, School of MedicineKitasato UniversitySagamiharaJapan
| | - Minako Yamaoka‐Tojo
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
- Department of Rehabilitation, School of Allied Health SciencesKitasato UniversitySagamiharaJapan
| | - Atsuhiko Matsunaga
- Department of Rehabilitation Sciences, Graduate School of Medical SciencesKitasato UniversitySagamiharaJapan
- Department of Rehabilitation, School of Allied Health SciencesKitasato UniversitySagamiharaJapan
| | - Junya Ako
- Department of Cardiovascular Medicine, School of MedicineKitasato UniversitySagamiharaJapan
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Raber I, McCarthy CP, Januzzi JL. A Test in Context: Interpretation of High-Sensitivity Cardiac Troponin Assays in Different Clinical Settings. J Am Coll Cardiol 2021; 77:1357-1367. [PMID: 33706879 DOI: 10.1016/j.jacc.2021.01.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 12/14/2022]
Abstract
High-sensitivity cardiac troponin (hs-cTn) assays have the ability to detect minute troponin concentrations and resolve minor changes in biomarker concentrations. Clinically, this allows for the ability to rapidly identify or exclude acute myocardial injury in the setting of acute chest discomfort-thus providing more rapid evaluation for acute myocardial infarction-but the improvements in troponin assays also create avenues for other applications where troponin release from the cardiomyocyte might confer prognostic information. These situations include cardiovascular risk assessment across a wide range of clinical circumstances, including apparently-well individuals, those at risk for heart disease, and those with prevalent cardiovascular disorders. The optimal hs-cTn threshold for each circumstance varies by the assay used and by the population assessed. This review will provide context for how hs-cTn assays might be interpreted depending on the application sought, reviewing results from studies leveraging hs-cTn for applications beyond "acute myocardial infarction diagnostic evaluation."
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Affiliation(s)
- Inbar Raber
- Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA. https://twitter.com/InbarRaber
| | - Cian P McCarthy
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. https://twitter.com/CianPMcCarthy
| | - James L Januzzi
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA; Baim Institute for Clinical Research, Boston, Massachusetts, USA.
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Abstract
Primary care physicians play a significant role in managing heart failure (HF), with the goals of reducing mortality, avoiding hospitalization, and improving patients’ quality of life. Most HF-related hospitalizations and deaths occur in patients with New York Heart Association functional class II or III, many of whom are perceived to have stable disease, which often progresses without clinical symptoms due to underlying deleterious effects of neurohormonal imbalance and endothelial dysfunction. Management includes lifestyle changes and stepped pharmacological therapy directed at the four stages of HF, with aggressive uptitration of therapies, including beta-blockers and inhibitors of the renin-angiotensin-aldosterone system. Recently, two new HF treatments have become available in clinical practice. Ivabradine was approved to reduce the risk of hospitalization for HF in patients with stable, symptomatic HF. Additionally, the angiotensin receptor–neprilysin inhibitor (ARNI), sacubitril/valsartan, was found to be significantly superior to enalapril in reducing risks of cardiovascular death and HF-related hospitalization. The respective 2016 and 2017 American College of Cardiology/American Heart Association/Heart Failure Society of America clinical practice guideline updates recommend that patients taking angiotensin-converting enzyme inhibitor/angiotensin receptor blocker therapy be switched to ARNI therapy to further reduce morbidity and mortality. For HF management to be maximally effective, physicians must be knowledgeable about the risks and benefits of treatments and stay engaged with patients to identify signs of disease progression. This article provides an overview of the progressive nature of HF in apparently stable patients and describes areas for treatment improvement that may help to optimize patient care.
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Affiliation(s)
- Inder Anand
- Cardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, 55455, USA.
- VA Medical Center, One Veterans Dr., Minneapolis, MN, 55417, USA.
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Bosselmann H, Tonder N, Sölétormos G, Gaborit F, Rossing K, Iversen K, Goetze JP, Gustafsson F, Schou M. Influence of renal impairment on aldosterone status, calcium metabolism, and vasopressin activity in outpatients with systolic heart failure. ESC Heart Fail 2017; 4:554-562. [PMID: 29154425 PMCID: PMC5695175 DOI: 10.1002/ehf2.12186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 12/13/2016] [Accepted: 05/01/2017] [Indexed: 12/15/2022] Open
Abstract
Aims Renal dysfunction (RD) is associated with increased morbidity and mortality in heart failure (HF). At present, no specific treatment for patients with RD, to prevent progression of HF, has been developed. How different hormone axes—and thereby potential treatment options—are affected by RD in HF warrants further investigations. Methods and results Patients with left ventricular ejection fraction (LVEF) <0.45% were enrolled prospectively from an outpatient HF clinic. Glomerular filtration rate was estimated by the Chronic Kidney Disease Epidemiology Collaboration equation (eGFR), and patients were grouped by eGFR: eGFR group I, ≥90 mL/min/1.73 m2; eGFR group II, 60–89 mL/min/1.73 m2; and eGFR group III, ≤59 mL/min/1.73 m2. Multivariate linear regression models were developed to evaluate the associations between eGFR groups and hormones. A total of 149 patients participated in the study. Median age was 69 [interquartile range (IQR): 64–73] and 26% were female; LVEF was 33% (IQR: 27–39), 78% were in functional class II–III, median eGFR was 74 (54–89) mL/min/1.73 m2, and median N‐terminal pro‐brain natriuretic peptide was 1303 pg/mL (IQR: 441–2740). RD was associated with increased aldosterone, parathyroid hormone (PTH), and copeptin concentrations (P < 0.05 for all) after adjustment for traditional confounders and medical treatment. Conclusions RD is associated with increased concentrations of aldosterone, PTH, and copeptin in systolic HF outpatients. Our results underscore the importance of treatment with mineralocorticoid receptor antagonist in systolic HF in particular in patients with RD and suggest that vasopressin and parathyroid receptor antagonism are potential treatment options in HF patients with known RD.
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Affiliation(s)
- Helle Bosselmann
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2141, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Cardiology, Nephrology and Endocrinology, Northzealand Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Niels Tonder
- Department of Cardiology, Nephrology and Endocrinology, Northzealand Hospital, University of Copenhagen, Copenhagen, Denmark
| | - György Sölétormos
- Department of Clinical Biochemistry, Northzealand Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Freja Gaborit
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Kasper Rossing
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2141, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Kasper Iversen
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jens Peter Goetze
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2141, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Morten Schou
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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Sabbah HN. Silent disease progression in clinically stable heart failure. Eur J Heart Fail 2017; 19:469-478. [PMID: 27976514 PMCID: PMC5396296 DOI: 10.1002/ejhf.705] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 10/21/2016] [Accepted: 11/02/2016] [Indexed: 12/11/2022] Open
Abstract
Heart failure with reduced ejection fraction (HFrEF) is a progressive disorder whereby cardiac structure and function continue to deteriorate, often despite the absence of clinically apparent signs and symptoms of a worsening disease state. This silent yet progressive nature of HFrEF can contribute to the increased risk of death-even in patients who are 'clinically stable', or who are asymptomatic or only mildly symptomatic-because it often goes undetected and/or undertreated. Current therapies are aimed at improving clinical symptoms, and several agents more directly target the underlying causes of disease; however, new therapies are needed that can more fully address factors responsible for underlying progressive cardiac dysfunction. In this review, mechanisms that drive HFrEF, including ongoing cardiomyocyte loss, mitochondrial abnormalities, impaired calcium cycling, elevated LV wall stress, reactive interstitial fibrosis, and cardiomyocyte hypertrophy, are discussed. Additionally, limitations of current HF therapies are reviewed, with a focus on how these therapies are designed to counteract the deleterious effects of compensatory neurohumoral activation but do not fully prevent disease progression. Finally, new investigational therapies that may improve the underlying molecular, cellular, and structural abnormalities associated with HF progression are reviewed.
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Okuyama R, Ishii J, Takahashi H, Kawai H, Muramatsu T, Harada M, Yamada A, Motoyama S, Matsui S, Naruse H, Sarai M, Hasegawa M, Watanabe E, Suzuki A, Hayashi M, Izawa H, Yuzawa Y, Ozaki Y. Combination of high-sensitivity troponin I and N-terminal pro-B-type natriuretic peptide predicts future hospital admission for heart failure in high-risk hypertensive patients with preserved left ventricular ejection fraction. Heart Vessels 2017; 32:880-892. [PMID: 28154958 DOI: 10.1007/s00380-017-0948-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 01/13/2017] [Indexed: 01/20/2023]
Abstract
Additional risk stratification may provide more aggressive and focalized preventive treatment to high-risk hypertensive patients according to the Japanese hypertension guidelines. We prospectively investigated the predictive value of high-sensitivity troponin I (hsTnI), both independently and in combination with N-terminal pro-B-type natriuretic peptide (NT-proBNP), for incident heart failure (HF) in high-risk hypertensive patients with preserved left ventricular ejection fraction (LVEF). Baseline hsTnI and NT-proBNP levels and echocardiography data were obtained for 493 Japanese hypertensive outpatients (mean age, 68.5 years) with LVEF ≥ 50%, no symptomatic HF, and at least one of the following comorbidities: stage 3-4 chronic kidney disease, diabetes mellitus, and stable coronary artery disease. During a mean follow-up period of 86.1 months, 44 HF admissions occurred, including 31 for HF with preserved ejection fraction (HFpEF) and 13 for HF with reduced ejection fraction (HFrEF; LVEF <50%). Both hsTnI (p < 0.01) and NT-proBNP (p < 0.005) levels were significant independent predictors of HF admission. Furthermore, when the patients were stratified into 4 groups according to increased hsTnI (≥highest tertile value of 10.6 pg/ml) and/or increased NT-proBNP (≥highest tertile value of 239.7 pg/ml), the adjusted relative risks for patients with increased levels of both biomarkers versus neither biomarker were 13.5 for HF admission (p < 0.0001), 9.45 for HFpEF (p = 0.0009), and 23.2 for HFrEF (p = 0.003). Finally, the combined use of hsTnI and NT-proBNP enhanced the C-index (p < 0.05), net reclassification improvement (p = 0.0001), and integrated discrimination improvement (p < 0.05) to a greater extent than that of any single biomarker. The combination of hsTnI and NT-proBNP, which are individually independently predictive of HF admission, could improve predictions of incident HF in high-risk hypertensive patients but could not predict future HF phenotypes.
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Affiliation(s)
- Ryunosuke Okuyama
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Junnichi Ishii
- Department of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, 470-1192, Japan.
| | - Hiroshi Takahashi
- Division of Statistics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hideki Kawai
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Takashi Muramatsu
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Masahide Harada
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Akira Yamada
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Sadako Motoyama
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Shigeru Matsui
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroyuki Naruse
- Department of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, 470-1192, Japan
| | - Masayoshi Sarai
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Midori Hasegawa
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Eiichi Watanabe
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Atsushi Suzuki
- Department of Endocrinology and Metabolism, Fujita Health University School of Medicine, Toyoake, Japan
| | - Mutsuharu Hayashi
- Department of Cardiology, Banbuntane Houtokukai Hospital, Nagoya, Japan
| | - Hideo Izawa
- Department of Cardiology, Banbuntane Houtokukai Hospital, Nagoya, Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yukio Ozaki
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
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8
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Vestergaard KR, Jespersen CB, Arnadottir A, Sölétormos G, Schou M, Steffensen R, Goetze JP, Kjøller E, Iversen KK. Prevalence and significance of troponin elevations in patients without acute coronary disease. Int J Cardiol 2016; 222:819-825. [DOI: 10.1016/j.ijcard.2016.07.166] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 07/27/2016] [Indexed: 11/30/2022]
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9
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Wiese S, Mortensen C, Gøtze JP, Christensen E, Andersen O, Bendtsen F, Møller S. Cardiac and proinflammatory markers predict prognosis in cirrhosis. Liver Int 2014; 34:e19-30. [PMID: 24313898 DOI: 10.1111/liv.12428] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 12/01/2013] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Inflammation and cardiac dysfunction plays an important role in the development of complications leading to increased mortality in patients with cirrhosis. Novel cardiac markers such as prohormone of ANP (proANP), copeptin and high-sensitivity troponin T (hs-TnT) and proinflammatory markers including soluble urokinase-type plasminogen activator receptor (suPAR) and high-sensitive C-reactive protein (hs-CRP) are related to these complications. We aimed to investigate if cardiac and proinflammatory markers are related to severity of liver disease, cardiac and haemodynamic changes, and long-term survival. METHODS One hundred and ninety-three stable cirrhotic patients (Child class: A = 46; B = 97; C = 50) had a full haemodynamic investigation performed with measurement of splanchnic and systemic haemodynamics and measurement of circulating levels of proBNP, proANP, copeptin, hs-TnT, LBP, IL 6, IL 8, IP 10, VEGF, hs-CRP and suPAR. RESULTS Soluble urokinase-type plasminogen activator receptor soluble urokinase-type plasminogen activator receptor, hs-CRP, and hs-TnT were significantly different throughout the Child classes (P < 0.01; P < 0.01; P < 0.02). All markers except copeptin correlated with indicators of disease severity in cirrhosis; ProANP and suPAR correlated with hepatic venous pressure gradient (r = 0.24 and r = 0.34; P < 0.001) and systemic vascular resistance (r = -0.24 and r = -0.33; P < 0.001). Cardiac (proANP, hs-TnT; P < 0.01) and proinflammatory (hs-CRP, suPAR; P < 0.05) markers were associated with mortality in a univariate Cox analysis, however, the strongest predictors of mortality in a multivariate Cox analysis were hs-TnT, ascites and hepatic venous pressure gradient (reg.coeff.: 0.34, P < 0.001; 0.16, P < 0.001; 0.06, P = 0.04). CONCLUSION Markers of cardiac dysfunction and inflammation are significantly associated with disease severity, degree of portal hypertension and survival in cirrhosis. In particular, hs-TnT and suPAR seem to contain prognostic information.
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Affiliation(s)
- Signe Wiese
- Department of Clinical Physiology and Nuclear Medicine, Center of Functional and Diagnostic Imaging and Research, Copenhagen, Denmark; Gastro Unit, Medical Department, Hvidovre Hospital, Hvidovre, Denmark
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10
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Lauridsen BK, Iversen K, Hunter I, Bay M, Kirk V, Nielsen OW, Nielsen H, Boesgaard S, Køber L, Goetze JP. ProANP plasma measurement predicts all-cause mortality in acutely hospitalised patients: a cohort study. BMJ Open 2013; 3:e003288. [PMID: 24282239 PMCID: PMC3845039 DOI: 10.1136/bmjopen-2013-003288] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
IMPORTANCE The association of natriuretic peptide measurement with all-cause mortality in a broad selection of acutely admitted patients has not yet been examined. OBJECTIVE To test the risk association between pro-atrial natriuretic peptide (ANP) and short-term and long-term mortality and its predictive value in acutely hospitalised patients and compare this to N-terminal B-type natriuretic peptide (NT-proBNP). DESIGN, SETTING AND PATIENTS Participants were selected from the Copenhagen Hospital Heart Failure Study (n=3644). Medical history, satisfactory echocardiography and blood samples were available on 2193 participants in 1998-1999 where NT-proBNP was measured. Vital status after discharge was obtained from national central data registers. A total of 1337 participants with eligible blood samples were selected in 2010-2011 for proANP measurement. Among these, 1255 (94%) were acutely hospitalised in 1998-1999. MAIN OUTCOME MEASURE(S) 1-year and long-term mortality. RESULTS Median follow-up period was 11.5 years. At the end of follow-up, 926 patients had died, 239 during the first year. ProANP quartiles to 2-4 (median proANP levels 594 pmol/L, 990 pmol/L and 2052 pmol/L, respectively) associated with a stepwise increase in risk of 1-year and long-term mortality compared to the first quartile (336 pmol/L) in multivariable adjusted Cox proportional regression models (HR 1.53 95% CI 1.30 to 1.81 and HR 1.26 95% CI 1.17 to 1.36, respectively). An addition of NT-proBNP attenuated proANP's association with mortality in the models (HR 1.24 95% CI 1.01 to 1.53 and 1.14 95% CI 1.03 to 1.26, respectively). The increased risk was observed in participants with the highest proANP levels (fourth quartile). Similar results were observed in subgroups of participants with no evidence of cardiovascular disease (CVD). ProANP in quartiles improved discrimination when added to traditional risk factors in prediction models for 1-year (integrated discrimination improvement (IDI) 0.141 95% CI 0.085 to 0.197; C-index 0.753 95% CI 0.724 to 0.783, P for improvement 0.003) and long-term mortality (IDI 0.053 95% CI 0.032 to 0.074; C-index 0.736 95% CI 0.720 to 0.752, P for improvement <0.001) with similar results in subgroups. Discrimination was best in a combined model with proANP as well as NT-proBNP included. CONCLUSIONS AND RELEVANCE High plasma proANP concentrations are associated with and predict short-term and long-term all-cause mortality in acutely hospitalised patients irrespective of CVD status at admission.
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Affiliation(s)
- Bo K Lauridsen
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
| | - Kasper Iversen
- Department of Cardiology, Rigshospitalet, Copenhagen, Denmark
| | - Ingrid Hunter
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
| | - Morten Bay
- Department of Cardiology, Frederiksberg Hospital, Copenhagen, Denmark
| | - Vibeke Kirk
- Department of Oncology, Herlev Hospital, Herlev, Denmark
| | - Olav W Nielsen
- Department of Cardiology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Henrik Nielsen
- Department of Cardiology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Søren Boesgaard
- Department of Cardiology, Rigshospitalet, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, Rigshospitalet, Copenhagen, Denmark
| | - Jens P Goetze
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
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11
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Bosselmann H, Egstrup M, Rossing K, Gustafsson I, Gustafsson F, Tonder N, Kistorp CN, Goetze JP, Schou M. Prognostic significance of cardiovascular biomarkers and renal dysfunction in outpatients with systolic heart failure: a long term follow-up study. Int J Cardiol 2013; 170:202-7. [PMID: 24182673 DOI: 10.1016/j.ijcard.2013.10.064] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 08/16/2013] [Accepted: 10/19/2013] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To assess whether the prognostic significance of cardiovascular (CV) biomarkers, is affected by renal dysfunction (RD) in systolic heart failure (HF). BACKGROUND It is unknown, whether the prognostic significance of CV biomarkers, such as N-terminal-pro-brain-natriuretic-peptide (NT-proBNP), high-sensitive troponin T (hsTNT), pro-atrial natriuretic peptide (proANP), copeptin and pro-adrenomedullin (proADM), is affected by renal function in HF. METHODS Clinical data and laboratory tests from 424 patients with systolic HF were collected prospectively. The patients were followed for 4.5 years (interquartile range: 2-7.7 years). CV biomarkers were analyzed on frozen plasma, and renal function was estimated by the Modification of Diet in Renal Disease (MDRD) formula. Cox proportional hazard models for mortality risk were constructed and tests for interaction between each CV biomarker and RD were performed. RESULTS Median age was 73 years (51-83), 29% were female, LVEF was 30% (13-45), 74% were NYHA classes I-II and estimated glomerular filtration rate (eGFR) was 68 ml/min/1.73 m(2) (18-157). A total of 252 patients died. All five biomarkers--log(NT-proBNP) (HR: 2.13, 95% CI: 1.57-2.87:, P<0.001), hsTNT (HR: 3.07, 95% CI: 1.90-4.96 P<0.001), proANP (HR: 1.02, 95% CI: 1.01-1.03, P<0.001), copeptin (HR: 1.02, 95% CI: 1.01-1.03, P=0.008) and proADM (HR: 2.37, 95% CI: 1.66-3.38, P<0.001)--were associated with mortality risk, but not affected by RD (P>0.05 for all interactions). CONCLUSION Established and new CV biomarkers are closely associated with renal function in HF. However, their prognostic significance is not affected by RD, and all CV biomarkers can be used for risk stratification independently of renal function.
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Affiliation(s)
- Helle Bosselmann
- Department of Cardio-, Nephro and Endocrinology, North Zealand University Hospital, Denmark.
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Horvath AR, Lord SJ, StJohn A, Sandberg S, Cobbaert CM, Lorenz S, Monaghan PJ, Verhagen-Kamerbeek WDJ, Ebert C, Bossuyt PMM. From biomarkers to medical tests: the changing landscape of test evaluation. Clin Chim Acta 2013; 427:49-57. [PMID: 24076255 DOI: 10.1016/j.cca.2013.09.018] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 09/15/2013] [Accepted: 09/15/2013] [Indexed: 01/14/2023]
Abstract
Regulators and healthcare payers are increasingly demanding evidence that biomarkers deliver patient benefits to justify their use in clinical practice. Laboratory professionals need to be familiar with these evidence requirements to better engage in biomarker research and decisions about their appropriate use. This paper by a multidisciplinary group of the European Federation of Clinical Chemistry and Laboratory Medicine describes the pathway of a laboratory assay measuring a biomarker to becoming a medically useful test. We define the key terms, principles and components of the test evaluation process. Unlike previously described linearly staged models, we illustrate how the essential components of analytical and clinical performances, clinical and cost-effectiveness and the broader impact of testing assemble in a dynamic cycle. We highlight the importance of defining clinical goals and how the intended application of the biomarker in the clinical pathway should drive each component of test evaluation. This approach emphasizes the interaction of the different components, and that clinical effectiveness data should be fed back to refine analytical and clinical performances to achieve improved outcomes. The framework aims to support the understanding of key stakeholders. The laboratory profession needs to strengthen collaboration with industry and experts in evidence-based medicine, regulatory bodies and policy makers for better decisions about the use of new and existing medical tests.
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Affiliation(s)
- Andrea R Horvath
- SEALS Department of Clinical Chemistry, Prince of Wales Hospital and School of Medical Sciences, University of New South Wales, Australia; Screening and Test Evaluation Program, School of Public Health, University of Sydney, Australia.
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Iversen K, Køber L, Gøtze JP, Dalsgaard M, Nielsen H, Boesgaard S, Bay M, Kirk V, Nielsen OW. Troponin T is a strong marker of mortality in hospitalized patients. Int J Cardiol 2013; 168:818-24. [DOI: 10.1016/j.ijcard.2012.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 06/21/2012] [Accepted: 10/07/2012] [Indexed: 10/27/2022]
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Nordenskjöld AM, Ahlström H, Eggers KM, Fröbert O, Venge P, Lindahl B. Short- and long-term individual variation in NT-proBNP levels in patients with stable coronary artery disease. Clin Chim Acta 2013; 422:15-20. [PMID: 23566928 DOI: 10.1016/j.cca.2013.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 03/22/2013] [Accepted: 03/23/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND In addition to diagnosis of heart failure (HF) natriuretic peptides (BNP and NT-proBNP) may be used for risk prediction in stable and acute coronary artery disease. The aim of the study was to evaluate the short- and long-term individual variation of NT-proBNP in patients with stable coronary artery disease. METHODS Twenty-four patients with suspected stable coronary artery disease and scheduled for elective coronary angiography were included. Blood samples were drawn at enrolment and, on average 3 weeks later, serially the day prior to coronary angiography. NT-proBNP was determined using Elecsys proBNP sandwich immunoassay (Roche Diagnostics). RESULTS The individual variation in NT-proBNP over 4h was 11.8%, over 20 h 12.4% and over 3 weeks 20.4%. The corresponding positive and negative lognormal reference change values (RCV) were +41/-29%, +42/-30% and +76/-43%, respectively. No significant circadian variation was found. CONCLUSIONS Our results suggest that an increase in NT-proBNP levels of >42% or a decrease of >30% is needed to indicate a reliable short-term change; and for a long-term change an increase of >76% or a decrease of >43% is required. This should be considered when interpreting changes in NT-proBNP levels.
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Combined measurement of copeptin, high-sensitivity troponin T, and N-terminal proBNP improves the identification of patients at risk of cardiovascular death. Cardiovasc Endocrinol 2012. [DOI: 10.1097/xce.0b013e32835bfb42] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bima A, Sikaris K. Towards appreciating appropriate clinical responses to highly sensitive cardiac troponin assays. Intern Med J 2012; 42 Suppl 5:16-22. [DOI: 10.1111/j.1445-5994.2012.02893.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - K. Sikaris
- Department of Chemical Pathology; Melbourne Pathology; Melbourne; Victoria; Australia
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Egstrup M, Schou M, Tuxen CD, Kistorp CN, Hildebrandt PR, Gustafsson F, Faber J, Goetze JP, Gustafsson I. Prediction of outcome by highly sensitive troponin T in outpatients with chronic systolic left ventricular heart failure. Am J Cardiol 2012; 110:552-7. [PMID: 22579083 DOI: 10.1016/j.amjcard.2012.04.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 04/17/2012] [Accepted: 04/17/2012] [Indexed: 11/29/2022]
Abstract
Our aim was to assess the prognostic impact of a high-sensitivity cardiac troponin T (hs-cTnT) assay in an outpatient population with chronic systolic left ventricular heart failure (HF). Four hundred sixteen patients with chronic HF and left ventricular ejection fraction ≤ 45% were enrolled in a prospective cohort study. In addition to hs-cTnT, plasma amino-terminal pro-B-type natriuretic peptide was measured at baseline. Mean age was 71 years, 29% were women, 62% had coronary artery disease (CAD), mean left ventricular ejection fraction was 31%, and 57% had abnormal level of hs-cTnT. During 4.4 years of follow-up, 211 (51%) patients died. In multivariate Cox regression models, hs-cTnT was categorized as quartiles or dichotomized by the 99th percentile of a healthy population. Adjusted hazard ratios for all-cause mortality for quartiles 2 to 4, with quartile 1 as reference, were 1.4 (95% confidence interval 0.9 to 2.4, p = 0.16) for quartile 2, 1.7 (0.9 to 2.5, p = 0.12) for quartile 3, and 2.6 (1.6 to 4.4, p <0.001) for quartile 4 and 1.7 (1.2 to 2.5, p = 0.003) for abnormal versus normal level of hs-cTnT. In patients without CAD, quartile 4 of hs-cTnT was associated with an adjusted hazard ratio of 6.8. In conclusion, hs-cTnT is increased in most outpatients with chronic systolic HF and carries prognostic information beyond clinical parameters and amino-terminal pro-B-type natriuretic peptide. Increased hs-cTnT indicated a particularly deleterious prognosis in patients without CAD.
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Affiliation(s)
- Michael Egstrup
- Department of Cardiology and Endocrinology, Frederiksberg University Hospital, Frederiksberg, Denmark.
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Popelová J, Kotaška K, Černý Š, Prokopová M, Rubáček M. Range and Distribution of NT-proBNP Values in Stable Corrected Congenital Heart Disease of Various Types. Can J Cardiol 2012; 28:471-6. [DOI: 10.1016/j.cjca.2012.01.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2011] [Revised: 01/19/2012] [Accepted: 01/24/2012] [Indexed: 11/17/2022] Open
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Vasikaran SD, Macdonald SPJ, Sikaris KA. High-sensitivity cardiac troponin assays for risk stratification and for the diagnosis of acute myocardial infarction. Ann Clin Biochem 2012; 49:209-10. [DOI: 10.1258/acb.2012.012058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Samuel D Vasikaran
- Department of Core Clinical Pathology and Biochemistry, PathWest – Royal Perth Hospital, Perth, WA 6000
| | - Stephen P J Macdonald
- Emergency Medicine, University of Western Australia, Armadale Health Service, Armadale, WA 6112
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Miller WL, Grill DE, Jaffe AS. Comparison of novel pro-BNP1–108 and standard BNP assays in heart failure patients. Clin Chim Acta 2012; 413:920-6. [DOI: 10.1016/j.cca.2012.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 02/07/2012] [Accepted: 02/07/2012] [Indexed: 10/28/2022]
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Mingels AM, Joosen IA, Versteylen MO, Laufer EM, Winkens MH, Wildberger JE, Van Dieijen-Visser MP, Hofstra L. High-sensitivity cardiac troponin T: risk stratification tool in patients with symptoms of chest discomfort. PLoS One 2012; 7:e35059. [PMID: 22558116 PMCID: PMC3338816 DOI: 10.1371/journal.pone.0035059] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 03/08/2012] [Indexed: 11/19/2022] Open
Abstract
Background Recent studies have demonstrated the association between increased concentrations of high-sensitivity cardiac troponin T (hs-cTnT) and the incidence of myocardial infarction, heart failure, and mortality. However, most prognostic studies to date focus on the value of hs-cTnT in the elderly or general population. The value of hs-cTnT in symptomatic patients visiting the outpatient department remains unclear. The aim of this study was to investigate the prognostic value of hs-cTnT as a biomarker in patients with symptoms of chest discomfort suspected for coronary artery disease and to assess its additional value in combination with other risk stratification tools in predicting cardiac events. Methods We studied 1,088 patients (follow-up 2.2±0.8 years) with chest discomfort who underwent coronary calcium scoring and coronary CT-angiography. Traditional cardiovascular risk factors and concentrations of hs-cTnT, N-terminal pro-brain-type natriuretic peptide (NT-proBNP) and high-sensitivity C-reactive protein (hsCRP) were assessed. Study endpoint was the occurrence of late coronary revascularization (>90 days), acute coronary syndrome, and cardiac mortality. Results Hs-cTnT was a significant predictor for the composite endpoint (highest quartile [Q4]>6.7 ng/L, HR 3.55; 95%CI 1.88–6.70; P<0.001). Survival analysis showed that hs-cTnT had significant predictive value on top of current risk stratification tools (Chi-square change P<0.01). In patients with hs-cTnT in Q4 versus <Q4, a 2- to 3-fold increase in cardiovascular risk was noticed, either when corrected for high or low Framingham risk score, coronary calcium scoring, or CT-angiography assessment (HR 3.11; 2.73; 2.47; respectively; all P<0.01). This was not the case for hsCRP and NT-proBNP. Conclusions Hs-cTnT is a useful prognostic biomarker in patients with chest discomfort suspected for coronary artery disease. In addition, hs-cTnT was an independent predictor for cardiac events when corrected for cardiovascular risk profiling, calcium score and CT-angiography results.
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Affiliation(s)
- Alma M. Mingels
- Department of Clinical Chemistry, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ivo A. Joosen
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Mathijs O. Versteylen
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Eduard M. Laufer
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Mark H. Winkens
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Joachim E. Wildberger
- Department of Radiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | | | - Leonard Hofstra
- Cardiology Center Netherlands, Utrecht, The Netherlands
- * E-mail:
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Vasikaran SD, Bima A, Botros M, Sikaris KA. Cardiac troponin testing in the acute care setting: Ordering, reporting, and high sensitivity assays—an update from the Canadian society of clinical chemists (CSCC); the case for age related acute myocardial infarction (AMI) cut-offs. Clin Biochem 2012; 45:513-4. [DOI: 10.1016/j.clinbiochem.2012.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Revised: 01/05/2012] [Accepted: 01/08/2012] [Indexed: 10/14/2022]
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Abstract
Understanding of chronic heart failure (HF) has progressed from a syndrome of disordered hemodynamics caused by alterations in the structure of the heart to one that involves intertwined molecular pathways in disarray. Accordingly, the assessment and treatment of patients with chronic HF has shifted from a focus on hemodynamics to modification of maladaptive molecular processes. Accumulating evidence shows that molecular biomarkers of disease could provide a unique window into the pathophysiology of chronic HF, potentially improving our ability to predict adverse outcomes, provide novel drug targets, and even help gauge therapeutic efficacy. The more 'traditional' biomarkers such as cardiac troponin, natriuretic peptides, and C-reactive protein have been studied in large cohorts of patients with chronic HF and have relatively established clinical applications. In this Review, we summarize the properties, clinical data, and potential applications of some emerging biomarkers that could uniquely indicate the level of biomechanical stretch, inflammation, ventricular remodeling, myocardial injury, and renal dysfunction that occurs in chronic HF. We will also discuss the potential role for these biomarkers within a multimarker-based strategy that could, in the future, lead to better care for these patients.
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Troponin T levels in patients with acute heart failure: clinical and prognostic significance of their detection and release during hospitalisation. Clin Res Cardiol 2012; 101:663-72. [DOI: 10.1007/s00392-012-0441-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
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Husby S, Lind B, Goetze JP. Practical use of natriuretic peptide measurement: questionnaire results from general practitioners and cardiologists. Biomark Med 2012; 6:13-8. [PMID: 22296193 DOI: 10.2217/bmm.11.101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIMS To elucidate the knowledge regarding B-type natriuretic peptide (BNP)/N-terminal proBNP (NT-proBNP) measurement among doctors using this biomarker. MATERIALS & METHODS We performed a questionnaire-based study on the use of BNP/NT-proBNP measurement among doctors; 21 general practitioners and 23 randomly chosen doctors at cardiology departments were interviewed. RESULTS 12 general practitioners (57%) answered 'yes', eight (38%) answered 'no' and one (5%) was 'undecided' for use of BNP/NT-proBNP measurement to exclude a diagnosis of heart failure. Among cardiologists, 11 (48%) answered 'yes', ten (43%) answered 'no' and two (9%) were 'undecided' (no difference between groups, p = 0.56). The majority of doctors were familiar with BNP/NT-proBNP being affected by age but were unaware of the impact of gender and obesity. CONCLUSION We propose that BNP/NT-proBNP measurement results should be supplied with age- and gender-related cut-off values, along with a notion of the negative predictive value and other parameters affecting the concentration in plasma.
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Affiliation(s)
- Simon Husby
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Denmark
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Abstract
Background—
Cardiac troponins are emerging as important prognostic markers in chronic cardiovascular conditions like stable coronary artery disease or chronic heart failure (HF). Less is known about the relation between serial measurements of high-sensitivity cardiac troponin T (hs-cTnT) and future events in HF. We determined the association between changes over time in hs-cTnT and outcome in patients with chronic HF.
Methods and Results—
We analyzed 5284 patients with chronic HF from 2 independent randomized clinical trials, the Valsartan Heart Failure Trial (Val-HeFT) (n=4053) and the Gruppo Italiano per lo Studio della Sopravvivenza nell'Insufficienza Cardiaca–Heart Failure (GISSI-HF) trial (n=1231). hs-cTnT was measured at randomization and after 3 months (GISSI-HF) or 4 months of follow-up (Val-HeFT). The association between changes over time of hs-cTnT and various outcomes was tested in multivariable models. In both studies, increases in hs-cTnT levels over time were associated with age, diabetes mellitus, worsening of renal function (reduction in estimated glomerular filtration rate), and baseline and increases in N-terminal pro-brain natriuretic peptide concentrations. Increases in hs-cTnT concentrations were associated with all-cause mortality (incidence rates, 8.19 [7.51–8.88] and 6.79 [5.98–7.61] per 100 person-years in Val-HeFT and GISSI-HF, respectively, with hazard ratios [95% confidence intervals] of 1.59 [1.39–1.82] and 1.88 [1.50–2.35]) after adjustment for conventional risk factors and baseline levels of hs-cTnT and N-terminal pro-brain natriuretic peptide. Changes in hs-cTnT concentration modestly improved prognostic discrimination beyond baseline values for fatal outcomes only.
Conclusions—
Despite very low circulating concentrations, changes in hs-cTnT concentrations over time are robust predictors of future cardiovascular events in patients with chronic HF but add limited prognostic discrimination.
Clinical Trial Registration—
http://www.clinicaltrials.gov
. Unique identifier: NCT00336336.
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