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Biomarkers associated with rhythm status after cardioversion in patients with atrial fibrillation. Sci Rep 2022; 12:1680. [PMID: 35102265 PMCID: PMC8803959 DOI: 10.1038/s41598-022-05769-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/13/2022] [Indexed: 01/13/2023] Open
Abstract
Biomarkers may help to improve our knowledge about the complex pathophysiology of atrial fibrillation (AF). In this study we sought to identify significant changes in biomarkers and clinical measures in patients with and without AF recurrence after electrical cardioversion. We measured 21 conventional and new biomarkers before and 30 days after electrical cardioversion and assessed the associations of changes in biomarker levels with rhythm status at follow-up. Significant between-group changes were observed for bone morphogenetic protein 10 (BMP10), N-terminal pro-B-type natriuretic peptide (NT-proBNP) and total bilirubin. Their respective changes were − 10.4%, − 62.0% and − 25.6% in patients with sinus rhythm, and 3.1%, 1.1% and − 9.4% in patients with recurrent AF, for a between-group difference of − 13.5% (95% confidence interval [CI] − 19.3% to − 7.6%; P < 0.001), − 63.1% (95% CI − 76.6% to − 49.6%; P < 0.001) and − 16.3% (95% CI − 27.9% to − 4.7%; P = 0.007). In multivariable models, the reductions of BMP10 and NT-proBNP were significantly associated with follow-up rhythm status (β coefficient per 1 − SD decrease, − 3.85; 95% CI − 6.34 to − 1.35; P = 0.003 for BMP10 and − 5.84; 95% CI − 10.22 to − 1.47; P = 0.009 for NT-proBNP. In conclusion, changes in BMP10 und NT-proBNP levels were independently associated with rhythm status after cardioversion, suggesting that these markers may be dependent on the actual heart rhythm.
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2
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Shiba M, Kato T, Morimoto T, Yaku H, Inuzuka Y, Tamaki Y, Ozasa N, Seko Y, Yamamoto E, Yoshikawa Y, Kitai T, Yamashita Y, Iguchi M, Nagao K, Kawase Y, Morinaga T, Toyofuku M, Furukawa Y, Ando K, Kadota K, Sato Y, Nakagawa Y, Kuwahara K, Kimura T. Changes in BNP levels from discharge to 6-month visit predict subsequent outcomes in patients with acute heart failure. PLoS One 2022; 17:e0263165. [PMID: 35089974 PMCID: PMC8797237 DOI: 10.1371/journal.pone.0263165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/12/2022] [Indexed: 11/19/2022] Open
Abstract
Background This study aimed to investigate the association between changes in brain natriuretic peptide (BNP) from discharge to 6-month visit and subsequent clinical outcomes in patients with acute heart failure (AHF). Methods Among 1246 patients enrolled in the prospective longitudinal follow-up study nested from the Kyoto Congestive Heart Failure registry, this study population included 446 patients with available paired BNP data at discharge and 6-month index visit. This study population was classified into 3 groups by percent change in BNP from discharge to 6-month visit; the low tertile (≤-44%, N = 149), the middle tertile (>-44% and ≤22%, N = 149) and the high tertile (>22%, N = 148). Findings The cumulative 180-day incidence after the index visit of the primary outcome measure (a composite endpoint of all-cause death or hospitalization for HF) was significantly higher in the high and middle tertiles than in the low tertile (26.8% and 14.4% versus 6.9%, log-rank P<0.0001). The adjusted excess risk of the high tertile relative to the low tertile remained significant for the primary outcome measure (hazard ratio: 3.43, 95% confidence interval: 1.51–8.46, P = 0.003). Conclusions Percent change in BNP was associated with a subsequent risk for a composite of all-cause death and hospitalization for HF after adjustment of the absolute BNP values, suggesting that observing the change in BNP levels, in addition to absolute BNP levels themselves, helps us to manage patient with HF.
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Affiliation(s)
- Masayuki Shiba
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- * E-mail:
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hidenori Yaku
- Department of Cardiology, Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - Yasutaka Inuzuka
- Cardiovascular Medicine, Shiga General Hospital, Moriyama, Japan
| | - Yodo Tamaki
- Division of Cardiology, Tenri Hospital, Tenri, Japan
| | - Neiko Ozasa
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuta Seko
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Erika Yamamoto
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yusuke Yoshikawa
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Kitai
- Division of Heart Failure, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yugo Yamashita
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Moritake Iguchi
- Department of Cardiology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Kazuya Nagao
- Department of Cardiology, Osaka Red Cross Hospital, Osaka, Japan
| | - Yuichi Kawase
- Department of Cardiology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Takashi Morinaga
- Department of Cardiology, Kokura Memorial Hospital, Kokura, Japan
| | - Mamoru Toyofuku
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Yutaka Furukawa
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kenji Ando
- Department of Cardiology, Kokura Memorial Hospital, Kokura, Japan
| | - Kazushige Kadota
- Department of Cardiology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Yukihito Sato
- Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Yasuaki Nakagawa
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koichiro Kuwahara
- Department of Cardiovascular Medicine, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Xiao P, Zhang F, Wang X, Song D, Li H. Analysis of B-type natriuretic peptide impurities using label-free data-independent acquisition mass spectrometry technology. ACTA ACUST UNITED AC 2020; 59:217-226. [DOI: 10.1515/cclm-2020-0012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 07/07/2020] [Indexed: 12/24/2022]
Abstract
Abstract
Objectives
Synthetic B-type natriuretic peptide (BNP) is employed in most clinical testing platforms as a raw material of calibrator. Characterization of impurities with structures similar (BNPstrimp compounds) to that of BNP is a reasonable way to decrease clinical measurement errors and improve drug safety.
Methods
A novel quantitative method targeted towards BNPstrimp compounds was developed. First, the peptide samples were separated and identified using ultra-performance liquid chromatography, coupled with high-resolution mass spectrometry (MS). To evaluate biological activity further, BNPstrimp immunoaffinity was investigated using western blot (WB) assays. Second, a quantitative label-free data-independent acquisition (DIA) MS approach was developed, and the internal standard peptide (ISP) was hydrolyzed. Absolute quantification was performed using an isotope dilution MS (ID-MS) approach. Third, method precision was investigated using the C-peptide reference material.
Results
Seventeen BNPstrimp compounds were identified in synthetic BNP, and 10 of them were successfully sequenced. The immunoassay results indicated that deaminated, oxidized, and isomerized BNPstrimp compounds exhibited weaker immunoaffinity than intact BNP1-32. The mass fraction of the synthetic solid ISP1-16, quantified by ID-MS, was 853.5 (±17.8) mg/g. Validation results indicated that the developed method was effective and accurate for the quantitation of the well-separated BNP impurities.
Conclusions
The developed approach was easy to perform, and it was suitable for the parallel quantification of low-abundance BNPstrimp compounds when they performed a good separation in liquid chromatography. The quantitative results were comparable and traceable. This approach is a promising tool for BNP product quality and safety assessment.
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Affiliation(s)
- Peng Xiao
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing , PR China
| | - Fan Zhang
- Hebei Key Laboratory of Active Components and Functions in Natural Products , Hebei Normal University of Science and Technology , Qinhuangdao , PR China
| | - Xinxue Wang
- Chemical Engineering Institute , Beijing University of Chemical Technology , Beijing , PR China
| | - Dewei Song
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing , PR China
| | - Hongmei Li
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing , PR China
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4
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Yoshioka K, Matsue Y, Okumura T, Kida K, Oishi S, Akiyama E, Suzuki S, Yamamoto M, Mizukami A, Kuroda S, Kagiyama N, Yamaguchi T, Sasano T, Matsumura A, Kitai T. Impact of brain natriuretic peptide reduction on the worsening renal function in patients with acute heart failure. PLoS One 2020; 15:e0235493. [PMID: 32589688 PMCID: PMC7319326 DOI: 10.1371/journal.pone.0235493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/16/2020] [Indexed: 12/28/2022] Open
Abstract
Aims The prognostic impact of worsening renal function (WRF) in patients with acute heart failure (AHF) remains under debate. Successful decongestion might offset the negative impact of WRF, but little is known about indicators of successful decongestion in the very acute phase of AHF. We hypothesized that decongestion as evaluated by the percent reduction in brain natriuretic peptide (BNP) could identify relevant prognostic implications of WRF in the very acute phase of AHF. Methods and results Data on 907 consecutive hospitalized patients with AHF in the REALITY-AHF study (age: 78±12 years; 55.1% male) were analyzed. Creatinine and BNP were measured at baseline and 48 hours from admission. WRF was defined as an increase in creatinine >0.3 mg at 48 hours from admission. The primary endpoint was 1-year all-cause mortality. Patients were divided into four groups according to the presence/absence of WRF and a BNP reduction higher/lower than the median: no-WRF/higher-BNP-reduction (n = 390), no-WRF/lower-BNP-reduction (n = 397), WRF/higher-BNP-reduction (n = 63), and WRF/lower-BNP-reduction groups (n = 57). Kaplan-Meier curve analysis showed that the WRF/lower-BNP-reduction group had a worse prognosis than the other groups. In a Cox regression analysis, only the WRF/lower-BNP-reduction group had higher mortality compared to the no-WRF/higher-BNP-reduction group (hazard ratio: 3.34, p<0.001). Conclusion In the very acute phase of AHF, BNP reduction may aid in identifying relevant prognostic significance of WRF.
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Affiliation(s)
- Kenji Yoshioka
- Department of Cardiology, Kameda Medical Center, Chiba, Japan
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- * E-mail:
| | - Takahiro Okumura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keisuke Kida
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Shogo Oishi
- Department of Cardiology, Himeji Cardiovascular Center, Hyogo, Japan
| | - Eiichi Akiyama
- Division of Cardiology, Yokohama City University Medical Center, Kanagawa, Japan
| | - Satoshi Suzuki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masayoshi Yamamoto
- Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Akira Mizukami
- Department of Cardiology, Kameda Medical Center, Chiba, Japan
| | - Shunsuke Kuroda
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, United States of America
| | - Nobuyuki Kagiyama
- Department of Cardiology, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Tetsuo Yamaguchi
- Department of Cardiology, Cardiovascular Center, Toranomon Hospital, Tokyo, Japan
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Takeshi Kitai
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
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Collinson P. Cardiac biomarker measurement by point of care testing - Development, rationale, current state and future developments. Clin Chim Acta 2020; 508:234-239. [PMID: 32464138 DOI: 10.1016/j.cca.2020.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/08/2020] [Accepted: 05/08/2020] [Indexed: 11/28/2022]
Abstract
Cardiac biomarker measurements are integral to the diagnosis and management of patients presenting with breathlessness and chest pain. Measurement of B type natriuretic peptide either directly or of the N-terminal portion of the prohormone although possible by point of care testing (POCT) has largely become a laboratory test. Measurement of the cardiac troponins cardiac troponin T (cTnT) and cardiac troponin I (cTnI) can easily and accurately be performed by POCT. The situation has been complicated by the development of high sensitivity assays for cTnT and cTnI and the subsequent development of rapid rule out algorithms allowing patient categorisation and discharge on admission and 1 to 2 h following admission. This article reviews the development of POCT for cardiac biomarkers, the evidence base comparing POCT with central laboratory testing, its strengths and limitations, and how POCT fits into the world of high sensitivity troponin assays. It also discusses what evidence there is that POCT can form part of rapid decision-making strategies and how this applies in an era of algorithms based on and is derived from measurement of high sensitivity troponin in the central laboratory.
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Affiliation(s)
- Paul Collinson
- Departments of Clinical Blood Sciences and Cardiology, St George's University Hospitals NHS Foundation Trust and St George's University of London, Cranmer Terrace, London SW17 0QT, UK.
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6
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Nabeshima Y, Sakanishi Y, Otani K, Higa Y, Honda M, Otsuji Y, Takeuchi M. Estimation of B-type Natriuretic Peptide Values from N-Terminal proBNP Levels. J UOEH 2020; 42:1-12. [PMID: 32213738 DOI: 10.7888/juoeh.42.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Both brain natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) are established biomarkers that are necessary in the diagnosis and management of heart failure (HF). However, it is difficult to infer BNP concentration from NT-proBNP concentration for a clinician who is familiar with BNP. We investigated whether estimated BNP concentration from NT-proBNP has an equivalent prognostic strength compared with the actual BNP concentration in the prediction of future outcomes. We created a formula for estimating BNP concentration using multivariate analysis in a derivation cohort with known or suspected HF (n = 374). We determined whether the estimated BNP level had a similar prognostic power compared with the actual BNP and NT-proBNP levels in a validation cohort (n = 375). There was a strong correlation between log-transformed BNP and log-transformed NT-proBNP (r = 0.90) in the derivation cohort. We created two types of equation from the derivation cohort. During a median of 1 year of follow up, 49 major adverse cardiac events developed in the validation cohort. Cox proportional analysis revealed that the actual and estimated BNP levels represented equivalent and significant predictors of the future cardiovascular outcome. The estimated BNP levels calculated by our new formula showed a prognostic power similar to the actual BNP levels. This equation will be useful, especially for a physician who is not familiar with NT-proBNP testing.
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Affiliation(s)
- Yosuke Nabeshima
- Second Department of Internal Medicine, University of Occupational and Environmental Health, Japan
- These authors contributed equally to this work
| | - Youko Sakanishi
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, Japan
- These authors contributed equally to this work
| | - Kyoko Otani
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, Japan
| | - Yukie Higa
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, Japan
| | - Masahisa Honda
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, Japan
| | - Yutaka Otsuji
- Second Department of Internal Medicine, University of Occupational and Environmental Health, Japan
| | - Masaaki Takeuchi
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, Japan
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7
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Klanderman RB, Bosboom JJ, Migdady Y, Veelo DP, Geerts BF, Murphy MF, Vlaar APJ. Transfusion-associated circulatory overload-a systematic review of diagnostic biomarkers. Transfusion 2018; 59:795-805. [PMID: 30488959 PMCID: PMC7379706 DOI: 10.1111/trf.15068] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/12/2018] [Accepted: 10/14/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Transfusion‐associated circulatory overload (TACO) is the leading cause of transfusion‐related major morbidity and mortality. Diagnosing TACO is difficult because there are no pathognomonic signs and symptoms. TACO biomarkers may aid in diagnosis, decrease time to treatment, and differentiate from other causes of posttransfusion dyspnea such a transfusion‐related acute lung injury. STUDY DESIGN AND METHODS A systematic review of literature was performed in EMBASE, PubMed, the TRIP Database, and the Cochrane Library, from inception to June 2018. All articles discussing diagnostic markers for TACO were included. Non‐English articles or conference abstracts were excluded. RESULTS Twenty articles discussing biomarkers for TACO were included. The majority investigated B‐type natriuretic peptide (BNP) and the N‐terminal prohormone cleavage fragment of BNP (NT‐proBNP), markers of hydrostatic pressure that can be determined within 1 hour. The data indicate that a post/pretransfusion NT‐proBNP ratio > 1.5 can aid in the diagnosis of TACO. Posttransfusion levels of BNP less than 300 or NT‐proBNP less than 2000 pg/mL, drawn within 24 hours of the reaction, make TACO unlikely. Cut‐off levels that exclude TACO are currently unclear. In critically ill patients, the specificity of natriuretic peptides for circulatory overload is poor. Other biomarkers, such as cytokine profiles, cannot discriminate between TACO and transfusion‐related acute lung injury. CONCLUSION Currently, BNP and NT‐proBNP are the primary diagnostic biomarkers researched for TACO. An NT‐proBNP ratio greater than 1.5 is supportive of TACO, and low levels of BNP or NT‐proBNP can exclude TACO. However, they are unreliable in critically ill patients. Other biomarkers, including cytokines and pulmonary edema fluid‐to‐serum protein ratio have not yet been sufficiently investigated for clinical use.
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Affiliation(s)
- Robert B Klanderman
- Department of Intensive Care Medicine, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands
| | - Joachim J Bosboom
- Department of Anesthesiology, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands
| | - Yazan Migdady
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Denise P Veelo
- Department of Anesthesiology, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands
| | - Bart F Geerts
- Department of Anesthesiology, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands
| | - Michael F Murphy
- NHS Blood & Transplant, Oxford University Hospitals and University of Oxford, Oxford, United Kingdom
| | - Alexander P J Vlaar
- Department of Intensive Care Medicine, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam University Medical Centers-AMC, Amsterdam, The Netherlands
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8
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Xiao P, Li H, Li X, Song D. Analytical barriers in clinical B-type natriuretic peptide measurement and the promising analytical methods based on mass spectrometry technology. ACTA ACUST UNITED AC 2018; 57:954-966. [DOI: 10.1515/cclm-2018-0956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 10/22/2018] [Indexed: 12/28/2022]
Abstract
Abstract
B-type natriuretic peptide (BNP) is a circulating biomarker that is mainly applied in heart failure (HF) diagnosis and to monitor disease progression. Because some identical amino acid sequences occur in the precursor and metabolites of BNP, undesirable cross-reactions are common in immunoassays. This review first summarizes current analytical methods, such as immunoassay- and mass spectrometry (MS)-based approaches, including the accuracy of measurement and the inconsistency of the results. Second, the review presents some promising approaches to resolve the current barriers in clinical BNP measurement, such as how to decrease cross-reactions and increase the measurement consistency. Specific approaches include research on novel BNP assays with higher-specificity chemical antibodies, the development of International System of Units (SI)-traceable reference materials, and the development of structure characterization methods based on state-of-the-art ambient and ion mobility MS technologies. The factors that could affect MS analysis are also discussed, such as biological sample cleanup and peptide ionization efficiency. The purpose of this review is to explore and identify the main problems in BNP clinical measurement and to present three types of approaches to resolve these problems, namely, materials, methods and instruments. Although novel approaches are proposed here, in practice, it is worth noting that the BNP-related peptides including unprocessed proBNP were all measured in clinical BNP assays. Therefore, approaches that aimed to measure a specific BNP or proBNP might be an effective way for the standardization of a particular BNP form measurement, instead of the standardization of “total” immunoreactive BNP assays in clinical at present.
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Affiliation(s)
- Peng Xiao
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing 100029 , P.R. China , Phone: +86-10-64228896, Fax: +86-10-64271639
| | - Hongmei Li
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing 100029 , P.R. China , Phone: +86-10-64228896, Fax: +86-10-64271639
| | - Xianjiang Li
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing , P.R. China
| | - Dewei Song
- Division of Chemical Metrology and Analytical Science , National Institute of Metrology , Beijing , P.R. China
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9
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Fu S, Ping P, Zhu Q, Ye P, Luo L. Brain Natriuretic Peptide and Its Biochemical, Analytical, and Clinical Issues in Heart Failure: A Narrative Review. Front Physiol 2018; 9:692. [PMID: 29922182 PMCID: PMC5996066 DOI: 10.3389/fphys.2018.00692] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/17/2018] [Indexed: 12/11/2022] Open
Abstract
Heart failure (HF) is a primary cause of morbidity and mortality worldwide. As the most widely studied and commonly applied natriuretic peptide (NP), B-type natriuretic peptide (BNP) has the effects of diuresis, natriuresis, vasodilation, anti-hypertrophy, and anti-fibrosis and it inhibits the renin-angiotensin-aldosterone and sympathetic nervous systems to maintain cardiorenal homeostasis and counteract the effects of HF. Both BNP and N-terminal pro B-type natriuretic peptide (NT-proBNP) are applied as diagnostic, managing, and prognostic tools for HF. However, due to the complexity of BNP system, the diversity of BNP forms and the heterogeneity of HF status, there are biochemical, analytical, and clinical issues on BNP not fully understood. Current immunoassays cross-react to varying degrees with pro B-type natriuretic peptide (proBNP), NT-proBNP and various BNP forms and cannot effectively differentiate between these forms. Moreover, current immunoassays have different results and may not accurately reflect cardiac function. It is essential to design assays that can recognize specific forms of BNP, NT-proBNP, and proBNP to obtain more clinical information. Not only the processing of proBNP (corin/furin) and BNP (neprilysin), but also the effects of glycosylation on proBNP processing and BNP assays, should be targeted in future studies to enhance their diagnostic, therapeutic, and prognostic values.
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Affiliation(s)
- Shihui Fu
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China.,Department of Cardiology and Hainan Branch, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Ping Ping
- Department of Pharmaceutical Care, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Qiwei Zhu
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Ping Ye
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Leiming Luo
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
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10
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Clerico A, Zaninotto M, Passino C, Plebani M. New issues on measurement of B-type natriuretic peptides. Clin Chem Lab Med 2017; 56:32-39. [PMID: 28809748 DOI: 10.1515/cclm-2017-0433] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 07/16/2017] [Indexed: 12/11/2022]
Abstract
The measurement of the active hormone of B-type natriuretic peptide (BNP) system actually has several analytical limitations and difficulties in clinical interpretations compared to that of inactive peptide N-terminal proBNP (NT-proBNP) because of the different biochemical and pathophysiological characteristics of two peptides and quality specifications of commercial immunoassay methods used for their measurement. Because of the better analytical characteristics of NT-proBNP immunoassays and the easier pathophysiological and clinical interpretations of variations of NT-proBNP levels in patients with heart failure (HF), some authors claimed to measure the inactive peptide NT-proBNP instead of the active hormone BNP for management of HF patients. The measurement of the active peptide hormone BNP gives different, but complementary, pathophysiological and clinical information compared to inactive NT-proBNP. In particular, the setup of new more sensitive and specific assays for the biologically active peptide BNP1-32 should give better accurate information on circulating natriuretic activity. In conclusion, at present time, clinicians should accurately consider both the clinical setting of patients and the analytical characteristics of BNP and NT-proBNP immunoassays in order to correctly interpret the variations of natriuretic peptides measured by commercially available laboratory methods, especially in patients treated with the new drug class of angiotensin receptor-neprilysin inhibitors.
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11
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Florkowski C, Don-Wauchope A, Gimenez N, Rodriguez-Capote K, Wils J, Zemlin A. Point-of-care testing (POCT) and evidence-based laboratory medicine (EBLM) - does it leverage any advantage in clinical decision making? Crit Rev Clin Lab Sci 2017; 54:471-494. [PMID: 29169287 DOI: 10.1080/10408363.2017.1399336] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Point-of-care testing (POCT) is the analysis of patient specimens outside the clinical laboratory, near or at the site of patient care, usually performed by clinical staff without laboratory training, although it also encompasses patient self-monitoring. It is able to provide a rapid result near the patient and which can be acted upon immediately. The key driver is the concept that clinical decision making may be delayed when samples are sent to the clinical laboratory. Balanced against this are considerations of increased costs for purchase and maintenance of equipment, staff training, connectivity to the laboratory information system (LIS), quality control (QC) and external quality assurance (EQA) procedures, all required for accreditation under ISO 22870. The justification for POCT depends upon being able to demonstrate that a more timely result (shorter turnaround times (TATs)) is able to leverage a clinically important advantage in decision making compared with the central laboratory (CL). In the four decades since POCT was adapted for the self-monitoring of blood glucose levels by subjects with diabetes, numerous new POCT methodologies have become available, enabling the clinician to receive results and initiate treatment more rapidly. However, these instruments are often operated by staff not trained in laboratory medicine and hence are prone to errors in the analytical phase (as opposed to laboratory testing where the analytical phase has the least errors). In some environments, particularly remote rural settings, the CL may be at a considerable distance and timely availability of cardiac troponins and other analytes can triage referrals to the main centers, thus avoiding expensive unnecessary patient transportation costs. However, in the Emergency Department, availability of more rapid results with POCT does not always translate into shorter stays due to other barriers to implementation of care. In this review, we apply the principles of evidence-based laboratory medicine (EBLM) looking for high quality systematic reviews and meta-analyses, ideally underpinned by randomized controlled trials (RCTs), looking for evidence of whether POCT confers any advantage in clinical decision making in different scenarios.
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Affiliation(s)
| | | | | | | | - Julien Wils
- e Department of Pharmacology , University Hospital of Rouen , Rouen , France
| | - Annalise Zemlin
- f University of Stellenbosch and National Health Laboratory Service (NHLS), Tygerberg Hospital , Cape Town , South Africa
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Torma AF, Groves K, Biesenbruch S, Mussell C, Reid A, Ellison S, Cramer R, Quaglia M. A candidate liquid chromatography mass spectrometry reference method for the quantification of the cardiac marker 1-32 B-type natriuretic peptide. Clin Chem Lab Med 2017; 55:1397-1406. [PMID: 28426429 DOI: 10.1515/cclm-2016-1054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 03/09/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND B-type natriuretic peptide (BNP) is a 32 amino acid cardiac hormone routinely measured by immunoassays to diagnose heart failure. While it is reported that immunoassay results can vary up to 45%, no attempt of standardization and/or harmonization through the development of certified reference materials (CRMs) or reference measurement procedures (RMPs) has yet been carried out. METHODS B-type natriuretic peptide primary calibrator was quantified traceably to the International System of Units (SI) by both amino acid analysis and tryptic digestion. A method for the stabilization of BNP in plasma followed by protein precipitation, solid phase extraction (SPE) and liquid chromatography (LC) mass spectrometry (MS) was then developed and validated for the quantification of BNP at clinically relevant concentrations (15-150 fmol/g). RESULTS The candidate reference method was applied to the quantification of BNP in a number of samples from the UK NEQAS Cardiac Markers Scheme to demonstrate its applicability to generate reference values and to preliminary evaluate the commutability of a potential CRM. The results from the reference method were consistently lower than the immunoassay results and discrepancy between the immunoassays was observed confirming previous data. CONCLUSIONS The application of the liquid chromatography-mass spectrometry (LC-MS) method to the UK NEQAS samples and the correlation of the results with the immunoassay results shows the potential of the method to support external quality assessment schemes, to improve understanding of the bias of the assays and to establish RMPs for BNP measurements. Furthermore, the method has the potential to be multiplexed for monitoring circulating truncated forms of BNP.
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Clerico A, Passino C, Franzini M, Emdin M. Natriuretic peptides as biomarkers of cardiac endocrine function in heart failure: new challenges and perspectives. Future Cardiol 2016; 12:573-84. [DOI: 10.2217/fca-2016-0013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Several studies indicated that B-type natriuretic peptide (BNP) assay is able to detect patients even in the early phases of heart failure (HF), when the myocardial remodeling process may be still reversible. BNP assay may assist the physician to initiate appropriate and prompt pharmacological treatments. However, clinical relevance and result interpretation of BNP assay for the guide of therapy or in particular clinical conditions, such as renal failure or treatment with inhibitors of enzymes degrading BNP in HF patients, are still debated. The aim of this article is to discuss some still controversial issues concerning the clinical use of measurement of cardiac natriuretic peptides, and also to provide a general overview and some perspectives related to pathophysiological mechanisms of HF.
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Affiliation(s)
- Aldo Clerico
- Scuola Superiore Sant'Anna & Fondazione CNR – Regione Toscana, Pisa, Italy
| | - Claudio Passino
- Scuola Superiore Sant'Anna & Fondazione CNR – Regione Toscana, Pisa, Italy
| | - Maria Franzini
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, University of Pisa, Pisa, Italy
| | - Michele Emdin
- Scuola Superiore Sant'Anna & Fondazione CNR – Regione Toscana, Pisa, Italy
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Chan WW, Waltman Johnson K, Friedman HS, Navaratnam P. Association between cardiac, renal, and hepatic biomarkers and outcomes in patients with acute heart failure. Hosp Pract (1995) 2016; 44:138-45. [PMID: 27292609 DOI: 10.1080/21548331.2016.1197760] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Myocardial injury, worsening renal function, and hepatic impairment are independent risk factors for poor patient acute heart failure (AHF) outcomes. Biomarkers of organ damage may be useful in identifying patients at risk for poor outcomes. The objective of this analysis was to assess the relationship between abnormal AHF biomarkers and outcomes in AHF patients. METHODS AHF admissions (N = 104,794) data from the Cerner Health Facts® inpatient database were analyzed retrospectively. Multivariate predictive models determined the impact of biomarkers on mortality, readmission, length of stay (LOS), and cost from index admission through 180 days post discharge. Thirty and 60 day time windows are reported but 180 day results were consistent with 60 day outcomes. Biomarkers evaluated were aspartate transaminase (AST), estimated glomerular filtration rate (eGFR), high sensitivity cardiac troponin, bilirubin, alanine transaminase (ALT), sodium, high sensitivity C-reactive protein (hs-CRP), uric acid, B-type natriuretic peptide (BNP), NT-ProBNP, blood urea nitrogen (BUN), serum creatinine (SCr), and hemoglobin. RESULTS All biomarkers evaluated except hs-CRP, uric acid, and NT-ProBNP were significant (p < 0.0001) predictors of mortality at all timepoints; non-significance for these 3 biomarkers is likely due to low patient counts (1%-2%). Odds ratios for significant biomarkers of mortality ranged from 1.168-2.076 at index admission, 1.205-1.946 at 30 days post-discharge, and 1.233-1.991 at 60 days post-discharge. AST, eGFR, troponin, ALT, BNP, BUN, SCr, and hemoglobin were significant (p < 0.0001) predictors of readmission risk at all timepoints. AST, eGFR, troponin, bilirubin, BUN, SCr, and hemoglobin were significant (p < 0.0001) predictors of cumulative LOS at all timepoints. AST, eGFR, troponin, ALT, sodium, BUN, and hemoglogin were significant (p < 0.0001) cost predictors at 30 and 60 days post-discharge. CONCLUSIONS Renal function measures were associated with outcomes in patients hospitalized for AHF. Increased vigilance of renal biomarkers may be warranted to assess risk and promote proactive clinical management to improve outcomes.
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Affiliation(s)
- Wing W Chan
- a Novartis Pharmaceuticals Corporation , East Hanover , NJ , USA
| | | | - Howard S Friedman
- b DataMed Solutions LLC , New York , NY , USA.,c School of International and Public Affairs , Columbia University , New York , NY , USA
| | - Prakash Navaratnam
- b DataMed Solutions LLC , New York , NY , USA.,d College of Pharmacy , The Ohio State University , Columbus , OH , USA
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Cantinotti M. B-Type Cardiac Natriuretic Peptides in the Neonatal and Pediatric Intensive Care Units. J Pediatr Intensive Care 2016; 5:189-197. [PMID: 31110904 DOI: 10.1055/s-0036-1583543] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 11/11/2015] [Indexed: 01/29/2023] Open
Abstract
During the last decade, interest in the brain natriuretic peptide (BNP) and N-terminal probrain natriuretic peptide (NT-proBNP) in the pediatric population has progressively increased. The aim of this article is to provide an up to date review of evidences regarding the use of BNP/NT-proBNP in pediatrics, with a particular focus on neonatal intensive care and congenital heart disease. The potentialities of the BNP have been demonstrated in multiple settings, particularly: the screening of congenital/acquired heart disease (CHD) versus pulmonary disease; the evaluation of CHD severity (grade of heart failure, degree of left-to-right shunts); the management of children undergoing cardiac surgery; and monitoring premature infants with patent arterial duct. BNP/NT-proBNP values may be considered an easy and relatively low cost additional diagnostic and prognostic tool. Interpretation of BNP values in children requires attention to important factors, including: laboratory methods, the type of cardiac defect, its severity, and the presence of extracardiac conditions. Of these, the hemodynamic characteristic of CHD and physiologic variations of BNP values occurring during the first weeks of life play a major role. The current evidences in favor of BNP use are mainly derived from single-center, nonrandomized studies, and cost-effectiveness analysis are still lacking. As such, despite sufficient evidences supporting the diagnostic and prognostic potentialities of BNP, these findings should be reinforced by multicenter, randomized studies specifically designed to evaluate outcomes and cost-effectiveness. In addition, standard consensus documents/guidelines, that are currently lacking, are warranted for a more systematic use of BNP in the pediatric age.
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Affiliation(s)
- Massimiliano Cantinotti
- Fondazione Toscana G. Monasterio, Massa, Pisa, Italy.,Insititute of Clinical Physiology, IFC_CNR, Pisa, Italy
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Abstract
Interest in brain natriuretic peptide (BNP) and N-terminal pro-brain natriuretic peptide (NT-proBNP) in the management of children with CHD has increased. There are, however, no current guidelines for their routine use. The aim of this review article is to provide an update on the data regarding the use of BNP/NT-proBNP in the evaluation and surgical treatment of children with CHD. BNP/NT-proBNP levels in children with CHD vary substantially according to age, laboratory assay methods, and the specific haemodynamics associated with the individual congenital heart lesion. The accuracy of BNP/NT-proBNP as supplemental markers in the integrated screening, diagnosis, management, and follow-up of CHD has been established. In particular, the use of BNP/NT-proBNP as a prognostic indicator in paediatric cardiac surgery has been widely demonstrated, as well as its role in the subsequent follow-up of surgical patients. Most of the data, however, are derived from single-centre retrospective studies using multivariable analysis; prospective, randomised clinical trials designed to evaluate the clinical utility and cost-effectiveness of routine BNP/NT-proBNP use in CHD are lacking. The results of well-designed, prospective clinical trials should assist in formulating guidelines and expert consensus recommendations for its use in patients with CHD. Finally, the use of new point-of-care testing methods that use less invasive sampling techniques - capillary blood specimens - may contribute to a more widespread use of the BNP assay, especially in neonates and infants, as well as contribute to the development of screening programmes for CHD using this biomarker.
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Clerico A, Passino C, Franzini M, Emdin M. Cardiac biomarker testing in the clinical laboratory: Where do we stand? General overview of the methodology with special emphasis on natriuretic peptides. Clin Chim Acta 2015; 443:17-24. [DOI: 10.1016/j.cca.2014.06.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 05/28/2014] [Accepted: 06/04/2014] [Indexed: 01/11/2023]
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Markers of fibrosis, inflammation, and remodeling pathways in heart failure. Clin Chim Acta 2015; 443:29-38. [DOI: 10.1016/j.cca.2014.09.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/22/2014] [Accepted: 09/03/2014] [Indexed: 01/13/2023]
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Clerico A, Franzini M, Masotti S, Prontera C, Passino C. State of the art of immunoassay methods for B-type natriuretic peptides: An update. Crit Rev Clin Lab Sci 2014; 52:56-69. [PMID: 25547534 DOI: 10.3109/10408363.2014.987720] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this review article is to give an update on the state of the art of the immunoassay methods for the measurement of B-type natriuretic peptide (BNP) and its related peptides. Using chromatographic procedures, several studies reported an increasing number of circulating peptides related to BNP in human plasma of patients with heart failure. These peptides may have reduced or even no biological activity. Furthermore, other studies have suggested that, using immunoassays that are considered specific for BNP, the precursor of the peptide hormone, proBNP, constitutes a major portion of the peptide measured in plasma of patients with heart failure. Because BNP immunoassay methods show large (up to 50%) systematic differences in values, the use of identical decision values for all immunoassay methods, as suggested by the most recent international guidelines, seems unreasonable. Since proBNP significantly cross-reacts with all commercial immunoassay methods considered specific for BNP, manufacturers should test and clearly declare the degree of cross-reactivity of glycosylated and non-glycosylated proBNP in their BNP immunoassay methods. Clinicians should take into account that there are large systematic differences between methods when they compare results from different laboratories that use different BNP immunoassays. On the other hand, clinical laboratories should take part in external quality assessment (EQA) programs to evaluate the bias of their method in comparison to other BNP methods. Finally, the authors believe that the development of more specific methods for the active peptide, BNP1-32, should reduce the systematic differences between methods and result in better harmonization of results.
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Affiliation(s)
- Aldo Clerico
- Scuola Superiore Sant'Anna and Fondazione G. Monasterio CNR - Regione Toscana , Pisa , Italy
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Savarese G, Musella F, D’Amore C, Vassallo E, Losco T, Gambardella F, Cecere M, Petraglia L, Pagano G, Fimiani L, Rengo G, Leosco D, Trimarco B, Perrone-Filardi P. Changes of Natriuretic Peptides Predict Hospital Admissions in Patients With Chronic Heart Failure. JACC-HEART FAILURE 2014; 2:148-58. [DOI: 10.1016/j.jchf.2013.11.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 11/25/2013] [Accepted: 11/28/2013] [Indexed: 10/25/2022]
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