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Salari N, Morddarvanjoghi F, Abdolmaleki A, Rasoulpoor S, Khaleghi AA, Hezarkhani LA, Shohaimi S, Mohammadi M. The global prevalence of myocardial infarction: a systematic review and meta-analysis. BMC Cardiovasc Disord 2023; 23:206. [PMID: 37087452 PMCID: PMC10122825 DOI: 10.1186/s12872-023-03231-w] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/08/2023] [Indexed: 04/24/2023] Open
Abstract
BACKGROUND Myocardial infarction (MI) is one of the life-threatening coronary-associated pathologies characterized by sudden cardiac death. The provision of complete insight into MI complications along with designing a preventive program against MI seems necessary. METHODS Various databases (PubMed, Web of Science, ScienceDirect, Scopus, Embase, and Google scholar search engine) were hired for comprehensive searching. The keywords of "Prevalence", "Outbreak", "Burden", "Myocardial Infarction", "Myocardial Infarct", and "Heart Attack" were hired with no time/language restrictions. Collected data were imported into the information management software (EndNote v.8x). Also, citations of all relevant articles were screened manually. The search was updated on 2022.9.13 prior to the publication. RESULTS Twenty-two eligible studies with a sample size of 2,982,6717 individuals (< 60 years) were included for data analysis. The global prevalence of MI in individuals < 60 years was found 3.8%. Also, following the assessment of 20 eligible investigations with a sample size of 5,071,185 individuals (> 60 years), this value was detected at 9.5%. CONCLUSION Due to the accelerated rate of MI prevalence in older ages, precise attention by patients regarding the complications of MI seems critical. Thus, determination of preventive planning along with the application of safe treatment methods is critical.
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Affiliation(s)
- Nader Salari
- Department of Biostatistics, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Amir Abdolmaleki
- Department of Operating Room, Nahavand School of Allied Medical Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Shabnam Rasoulpoor
- Department of Psychiatric Nursing, Miandoab School of Nursing, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Asghar Khaleghi
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Leila Afshar Hezarkhani
- Neuroscience Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shamarina Shohaimi
- Department of Biology, Faculty of Science, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Masoud Mohammadi
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran.
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Kunz AL, Schönstein A, Bahrmann P, Giannitsis E, Wahl HW, Katus HA, Frey N, Bahrmann A. Exploring biomarkers in routine diagnostics for the risk stratification of older patients in the Chest Pain Unit: a prospective cohort study. BMJ Open 2022; 12:e056674. [PMID: 36572487 PMCID: PMC9806057 DOI: 10.1136/bmjopen-2021-056674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES This study aims to estimate the association of the often, in daily clinical practice, used biological age-related biomarkers high-sensitivity troponin-T (hs-TnT), C reactive protein (CRP) and haemoglobin (Hb) with all-cause mortality for the purpose of older patient's risk stratification in the emergency department (ED). DESIGN Exploratory, prospective cohort study with a follow-up at 2.5 years after recruitment started. For the predictors, data from the hospital files including the routinely applied biological age-related biomarkers hs-TnT, CRP and Hb were supplemented by a questionnaire. SETTING A cardiological ED, Chest Pain Unit, University Hospital Heidelberg, Germany. PARTICIPANTS N=256 cardiological ED patients with a minimum age of 70 years and the capability to informed consent. PRIMARY OUTCOME MEASURES The primary outcome of this study was all-cause mortality which was assessed by requesting registry office information. RESULTS Among N=256 patients 63 died over the follow-up period. Positive results in each of the three biomarkers alone as well as the combination were associated with increased all-cause mortality at follow-up. The number of positive age-related biomarkers appeared to be strongly indicative of the risk of mortality, even when controlled for major confounders (age, sex, body mass index, creatinine clearance and comorbidity). CONCLUSIONS In older ED patients, biomarkers explicitly related to biological ageing processes such as hs-TnT, CRP and Hb were to a certain degree independently of each other as well as combined associated with an increased risk of all-cause mortality. Thus, they may have the potential to be used to supplement the general risk stratification of older patients in the ED. Validation of the results in a large dataset is needed.
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Affiliation(s)
- Anna Lisa Kunz
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
| | - Anton Schönstein
- Network Aging Research, Heidelberg University, Heidelberg, Germany
| | - Philipp Bahrmann
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
| | - Evangelos Giannitsis
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
| | - Hans-Werner Wahl
- Network Aging Research and Institute of Psychology, Heidelberg University, Heidelberg, Germany
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
| | - Norbert Frey
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
| | - Anke Bahrmann
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany
- Network Aging Research, Heidelberg University, Heidelberg, Germany
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Ravanavena A, Ravindra C, Igweonu-Nwakile EO, Ali S, Paul S, Yakkali S, Teresa Selvin S, Thomas S, Bikeyeva V, Abdullah A, Radivojevic A, Abu Jad AA, Balani P. Absolute Versus Relative Changes in Cardiac Troponins in the Diagnosis of Myocardial Infarction: A Systematic Review and Meta-Analysis. Cureus 2022; 14:e27414. [PMID: 35915617 PMCID: PMC9338783 DOI: 10.7759/cureus.27414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/27/2022] [Indexed: 11/30/2022] Open
Abstract
Ischemic heart disease (IHD) is one of the leading causes of death globally. Rapid diagnosis of myocardial infarction (MI) will enable earlier initiation of the treatment and improve patient outcomes. Practice guidelines for non-ST-elevation acute coronary syndromes by the American College of Cardiology (ACC)/American Heart Association (AHA) had listed the diagnostic performance of absolute versus relative changes in evidence gaps. We aimed to address this evidence gap by examining the diagnostic accuracy of absolute versus relative changes in cardiac troponins at various time intervals in diagnosing MI. Grey literature, conference abstracts, animal studies, and reports published before 2009 and in languages other than English were excluded. We included reports that investigated absolute or relative changes in highly sensitive cardiac troponin T (hs-cTnT) or sensitive/highly sensitive cardiac troponin I (s/hs-cTnI) assays after specific time intervals (1, 2, or 3 h) in patients presenting with symptoms suggestive of the acute coronary syndrome. After screening, we arranged the reports in 12 separate groups based on the variables for which the data was reported. Quality assessment of the diagnostic accuracy studies-2 (QUADAS-2) was used to assess the risk of bias in the included studies. The weighted summary area under the curve (AUC) was calculated for each pool. We then performed two-sided (or two-tailed) tests to compare independent receiver operating characteristic (ROC) curves. MedCalc version 20.106 (MedCalc Software Ltd., Ostend, Belgium) was used for all statistical analysis. We included eight reports with 23,450 patients in the meta-analysis. Weighted summary estimates and their respective 95% confidence intervals (CI) under random-effects model for ROC-AUC are as follows: absolute hs-cTnI at 1 h - 0.94 (95% CI: 0.922 to 0.959, p < 0.001); absolute hs-cTnT at 1 h - 0.921 (95% CI: 0.902 to 0.941, p < 0.001); absolute s/hs-cTnI at 2 h - 0.953 (95% CI: 0.926 to 0.980, p < 0.001); absolute hs-cTnT at 2 h 0.951 (95% CI: 0.940 to 0.962, p < 0.001); relative hs-cTnT at 2 h - 0.818 (95% CI: 0.733 to 0.903, p < 0.001); relative s/hs-cTnI at 2 h - 0.762 (95% CI: 0.726 to 0.798, p < 0.001); absolute hs-cTnI at 3 h - 0.967 (95% CI: 0.95 to 0.984, p < 0.001); absolute hs-cTnT at 3 h - 0.959 (95% CI: 0.950 to 0.968, p < 0.001); and relative hs-cTnT at 3 h - 0.926 (95% CI: 0.907 to 0.945, p < 0.001). P-values of comparison of absolute and relative changes are as follows: hs-cTnT at 1 h: <0.0001; hs-cTnI at 1 h: <0.0001; hs-cTnT at 2 h: 0.0024; s/hs-cTnI at 2 h: <0.0001; hs-cTnT at 3 h: 0.0022; and hs-cTnI at 3 h: 0.0005. Our analysis found absolute changes to be superior to relative changes in both hs-cTnT and s/hs-cTnI at 1, 2, and 3 h in the diagnosis of MI. There was no statistically significant difference in comparing s/hs-cTnI vs. hs-cTnT using absolute or relative changes at any time interval. Our findings suggest that future research investigating a potential 0 h/30 min algorithm should use absolute Δ over relative Δ. A suboptimal number of reports in the groups limited our ability to establish the robustness of the results. We did not receive any funding for this review.
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Chiang CH, Chiang CH, Pickering JW, Stoyanov KM, Chew DP, Neumann JT, Ojeda F, Sörensen NA, Su KY, Kavsak P, Worster A, Inoue K, Johannessen TR, Atar D, Amann M, Hochholzer W, Mokhtari A, Ekelund U, Twerenbold R, Mueller C, Bahrmann P, Buttinger N, Dooley M, Ruangsomboon O, Nowak RM, DeFilippi CR, Peacock WF, Neilan TG, Liu MA, Hsu WT, Lee GH, Tang PU, Ma KSK, Westermann D, Blankenberg S, Giannitsis E, Than MP, Lee CC. Performance of the European Society of Cardiology 0/1-Hour, 0/2-Hour, and 0/3-Hour Algorithms for Rapid Triage of Acute Myocardial Infarction : An International Collaborative Meta-analysis. Ann Intern Med 2022; 175:101-113. [PMID: 34807719 DOI: 10.7326/m21-1499] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The 2020 European Society of Cardiology (ESC) guidelines recommend using the 0/1-hour and 0/2-hour algorithms over the 0/3-hour algorithm as the first and second choices of high-sensitivity cardiac troponin (hs-cTn)-based strategies for triage of patients with suspected acute myocardial infarction (AMI). PURPOSE To evaluate the diagnostic accuracies of the ESC 0/1-hour, 0/2-hour, and 0/3-hour algorithms. DATA SOURCES PubMed, Embase, Cochrane Central Register of Controlled Trials, Web of Science, and Scopus from 1 January 2011 to 31 December 2020. (PROSPERO: CRD42020216479). STUDY SELECTION Prospective studies that evaluated the ESC 0/1-hour, 0/2-hour, or 0/3-hour algorithms in adult patients presenting with suspected AMI. DATA EXTRACTION The primary outcome was index AMI. Twenty unique cohorts were identified. Primary data were obtained from investigators of 16 cohorts and aggregate data were extracted from 4 cohorts. Two independent authors assessed each study for methodological quality. DATA SYNTHESIS A total of 32 studies (20 cohorts) with 30 066 patients were analyzed. The 0/1-hour algorithm had a pooled sensitivity of 99.1% (95% CI, 98.5% to 99.5%) and negative predictive value (NPV) of 99.8% (CI, 99.6% to 99.9%) for ruling out AMI. The 0/2-hour algorithm had a pooled sensitivity of 98.6% (CI, 97.2% to 99.3%) and NPV of 99.6% (CI, 99.4% to 99.8%). The 0/3-hour algorithm had a pooled sensitivity of 93.7% (CI, 87.4% to 97.0%) and NPV of 98.7% (CI, 97.7% to 99.3%). Sensitivity of the 0/3-hour algorithm was attenuated in studies that did not use clinical criteria (GRACE score <140 and pain-free) compared with studies that used clinical criteria (90.2% [CI, 82.9 to 94.6] vs. 98.4% [CI, 88.6 to 99.8]). All 3 algorithms had similar specificities and positive predictive values for ruling in AMI, but heterogeneity across studies was substantial. Diagnostic performance was similar across the hs-cTnT (Elecsys; Roche), hs-cTnI (Architect; Abbott), and hs-cTnI (Centaur/Atellica; Siemens) assays. LIMITATION Diagnostic accuracy, inclusion and exclusion criteria, and cardiac troponin sampling time varied among studies. CONCLUSION The ESC 0/1-hour and 0/2-hour algorithms have higher sensitivities and NPVs than the 0/3-hour algorithm for index AMI. PRIMARY FUNDING SOURCE National Taiwan University Hospital.
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Affiliation(s)
- Cho-Han Chiang
- Harvard Medical School, Boston, Massachusetts, and National Taiwan University College of Medicine, Taipei, Taiwan (Cho-Han Chiang)
| | - Cho-Hung Chiang
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Foundation, New Taipei City, Taiwan (Cho-Hung Chiang)
| | - John W Pickering
- Christchurch Hospital and University of Otago Christchurch, Christchurch, New Zealand (J.W.P.)
| | - Kiril M Stoyanov
- University Hospital of Heidelberg, Heidelberg, Germany (K.M.S., E.G.)
| | - Derek P Chew
- Flinders University of South Australia, Adelaide, Australia (D.P.C.)
| | - Johannes T Neumann
- Monash University, Melbourne, Australia, and University Heart & Vascular Center Hamburg, Hamburg, Germany (J.T.N.)
| | - Francisco Ojeda
- University Heart & Vascular Center Hamburg, Hamburg, Germany (F.O., N.A.S., D.W., S.B.)
| | - Nils A Sörensen
- University Heart & Vascular Center Hamburg, Hamburg, Germany (F.O., N.A.S., D.W., S.B.)
| | - Ke-Ying Su
- National Taiwan University Hospital, Taipei, Taiwan (K.S., G.H.L., P.T.)
| | - Peter Kavsak
- McMaster University, Hamilton, Ontario, Canada (P.K., A.W.)
| | - Andrew Worster
- McMaster University, Hamilton, Ontario, Canada (P.K., A.W.)
| | - Kenji Inoue
- Juntendo University Nerima Hospital, Tokyo, Japan (K.I.)
| | - Tonje R Johannessen
- University of Oslo and Oslo Accident and Emergency Outpatient Clinic, Oslo, Norway (T.R.J.)
| | - Dan Atar
- Oslo University Hospital, Ullevaal, and University of Oslo, Oslo, Norway (D.A.)
| | - Michael Amann
- University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany (M.A., W.H.)
| | - Willibald Hochholzer
- University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany (M.A., W.H.)
| | - Arash Mokhtari
- Skåne University Hospital, Lund University, Lund, Sweden (A.M., U.E.)
| | - Ulf Ekelund
- Skåne University Hospital, Lund University, Lund, Sweden (A.M., U.E.)
| | - Raphael Twerenbold
- University of Basel, Basel, Switzerland, University Heart and Vascular Center Hamburg, Hamburg, Germany, and German Center for Cardiovascular Research (DZHK) Partner Site Hamburg-Kiel-Lübeck (R.T.)
| | | | - Philipp Bahrmann
- Friedrich-Alexander-University Erlangen-Nuremberg, Nuremberg, Germany (P.B.)
| | - Nicolas Buttinger
- Brighton and Sussex University Hospitals NHS Trust, Brighton, United Kingdom (N.B., M.D.)
| | - Maureen Dooley
- Brighton and Sussex University Hospitals NHS Trust, Brighton, United Kingdom (N.B., M.D.)
| | | | | | | | | | - Tomas G Neilan
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Boston, Massachusetts (T.G.N.)
| | - Michael A Liu
- Warren Alpert Medical School of Brown University, Providence, Rhode Island (M.A.L.)
| | - Wan-Ting Hsu
- Harvard School of Public Health, Boston, Massachusetts (W.H.)
| | - Gin Hoong Lee
- National Taiwan University Hospital, Taipei, Taiwan (K.S., G.H.L., P.T.)
| | - Pui-Un Tang
- National Taiwan University Hospital, Taipei, Taiwan (K.S., G.H.L., P.T.)
| | - Kevin Sheng-Kai Ma
- Center for Global Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, and National Taiwan University, Taipei, Taiwan (K.S.M.)
| | - Dirk Westermann
- University Heart & Vascular Center Hamburg, Hamburg, Germany (F.O., N.A.S., D.W., S.B.)
| | - Stefan Blankenberg
- University Heart & Vascular Center Hamburg, Hamburg, Germany (F.O., N.A.S., D.W., S.B.)
| | | | - Martin P Than
- Christchurch Hospital and Christchurch Heart Institute, University of Otago Christchurch, Christchurch, New Zealand (M.P.T.)
| | - Chien-Chang Lee
- The Centre for Intelligent Healthcare, National Taiwan University Hospital, Taipei, Taiwan (C.L.)
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Arslan M, Dedic A, Boersma E, Dubois EA. Serial high-sensitivity cardiac troponin T measurements to rule out acute myocardial infarction and a single high baseline measurement for swift rule-in: A systematic review and meta-analysis. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2019; 9:14-22. [PMID: 30618277 PMCID: PMC7008551 DOI: 10.1177/2048872618819421] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aims: The purpose of this study was to determine (a) the ability of serial high-sensitivity cardiac troponin T measurements to rule out acute myocardial infarction and (b) the ability of a single high baseline high-sensitivity cardiac troponin T measurement to rule in acute myocardial infarction in patients presenting to the emergency department with acute chest pain. Methods and results: Embase, Medline, Cochrane, Web of Science and Google scholar were searched for prospective cohort studies that evaluated parameters of diagnostic accuracy of serial high-sensitivity cardiac troponin T to rule out acute myocardial infarction and a single baseline high-sensitivity cardiac troponin T value>50 ng/l to rule in acute myocardial infarction. The search yielded 21 studies for the systematic review, of which 14 were included in the meta-analysis, with a total of 11,929 patients and an overall prevalence of acute myocardial infarction of 13.0%. For rule-out, six studies presented the sensitivity of serial measurements <14 ng/l. This cut-off classified 60.1% of patients as rule-out and the summary sensitivity was 96.7% (95% confidence interval: 92.3–99.3). Three studies presented the sensitivity of a one-hour algorithm with a baseline high-sensitivity cardiac troponin T value<12 ng/l and delta 1 hour <3 ng/l. This algorithm classified 60.2% of patients as rule-out and the summary sensitivity was 98.9% (96.4–100). For rule-in, six studies reported the specificity of baseline high-sensitivity cardiac troponin T value>50 ng/l. The summary specificity was 94.6% (91.5–97.1). Conclusion: Serial high-sensitivity cardiac troponin T measurement strategies to rule out acute myocardial infarction perform well, and a single baseline high-sensitivity cardiac troponin T value>50 ng/l to rule in acute myocardial infarction has a high specificity.
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Affiliation(s)
- M Arslan
- Department of Cardiology, Erasmus Medical Centre, The Netherlands
| | - A Dedic
- Department of Cardiology, Erasmus Medical Centre, The Netherlands
| | - E Boersma
- Department of Cardiology, Erasmus Medical Centre, The Netherlands.,Department of Clinical Epidemiology, Erasmus Medical Centre, The Netherlands
| | - E A Dubois
- Department of Cardiology, Erasmus Medical Centre, The Netherlands
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Andruchow JE, Kavsak PA, McRae AD. Contemporary Emergency Department Management of Patients with Chest Pain: A Concise Review and Guide for the High-Sensitivity Troponin Era. Can J Cardiol 2017; 34:98-108. [PMID: 29407013 DOI: 10.1016/j.cjca.2017.11.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/23/2017] [Accepted: 11/23/2017] [Indexed: 11/17/2022] Open
Abstract
This article synthesizes current best evidence for the evaluation of patients with suspected acute coronary syndrome (ACS) using high-sensitivity troponin assays, enabling physicians to effectively incorporate them into practice. Unlike conventional assays, high-sensitivity assays can precisely measure blood cardiac troponin concentrations in the vast majority of healthy individuals, facilitating the creation of rapid diagnostic algorithms. Very low troponin concentrations on presentation accurately rule out acute myocardial infarction (AMI) and enable the discharge of approximately 20% of patients after a single test, whereas an additional 30%-40% of patients can be safely discharged after short-interval serial sampling in as little as 1 or 2 hours. In contrast, highly abnormal troponin concentrations on presentation (more than 5 times the upper reference limit) or rapidly rising levels on serial testing can rapidly rule in AMI with high specificity. However, approximately one-third of patients remain in a biomarker-indeterminate "observation zone" even after serial sampling. These patients pose a disposition challenge to clinicians because although the differential diagnosis of elevated troponin concentrations is broad, these patients have an increased risk for short-term major adverse cardiac events. Use of repeated serial troponin sampling and structured clinical prediction tools may assist disposition for these patients, because no validated pathways currently exist to guide clinicians. Ongoing research to tailor diagnostic thresholds to individual patient characteristics may enable improved diagnostic accuracy and usher in a new era of personalized medicine in the evaluation of suspected ACS.
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Affiliation(s)
- James E Andruchow
- Department of Emergency Medicine, University of Calgary, Calgary, Alberta, Canada; Alberta Health Services, Calgary, Alberta, Canada.
| | - Peter A Kavsak
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Andrew D McRae
- Department of Emergency Medicine, University of Calgary, Calgary, Alberta, Canada; Alberta Health Services, Calgary, Alberta, Canada
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7
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Shah ASV, Sandoval Y, Noaman A, Sexter A, Vaswani A, Smith SW, Gibbins M, Griffiths M, Chapman AR, Strachan FE, Anand A, Denvir MA, Adamson PD, D'Souza MS, Gray AJ, McAllister DA, Newby DE, Apple FS, Mills NL. Patient selection for high sensitivity cardiac troponin testing and diagnosis of myocardial infarction: prospective cohort study. BMJ 2017; 359:j4788. [PMID: 29114078 PMCID: PMC5683043 DOI: 10.1136/bmj.j4788] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2017] [Indexed: 12/28/2022]
Abstract
Objective To evaluate how selection of patients for high sensitivity cardiac troponin testing affects the diagnosis of myocardial infarction across different healthcare settings.Design Prospective study of three independent consecutive patient populations presenting to emergency departments.Setting Secondary and tertiary care hospitals in the United Kingdom and United States.Participants High sensitivity cardiac troponin I concentrations were measured in 8500 consecutive patients presenting to emergency departments: unselected patients in the UK (n=1054) and two selected populations of patients in whom troponin testing was requested by the attending clinician in the UK (n=5815) and the US (n=1631). The final diagnosis of type 1 or type 2 myocardial infarction or myocardial injury was independently adjudicated.Main outcome measures Positive predictive value of an elevated cardiac troponin concentration for a diagnosis of type 1 myocardial infarction.Results Cardiac troponin concentrations were elevated in 13.7% (144/1054) of unselected patients, with a prevalence of 1.6% (17/1054) for type 1 myocardial infarction and a positive predictive value of 11.8% (95% confidence interval 7.0% to 18.2%). In selected patients, in whom troponin testing was guided by the attending clinician, the prevalence and positive predictive value were 14.5% (843/5815) and 59.7% (57.0% to 62.2%) in the UK and 4.2% (68/1631) and 16.4% (13.0% to 20.3%) in the US. Across both selected patient populations, the positive predictive value was highest in patients with chest pain, with ischaemia on the electrocardiogram, and with a history of ischaemic heart disease.Conclusions When high sensitivity cardiac troponin testing is performed widely or without previous clinical assessment, elevated troponin concentrations are common and predominantly reflect myocardial injury rather than myocardial infarction. These observations highlight how selection of patients for cardiac troponin testing varies across healthcare settings and markedly influences the positive predictive value for a diagnosis of myocardial infarction.
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Affiliation(s)
- Anoop S V Shah
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Yader Sandoval
- Division of Cardiology, Hennepin County Medical Center and Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, MN, USA
| | - Ala Noaman
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Anne Sexter
- Chronic Disease Research Group of Minneapolis Medical Research Foundation, Hennepin County Medical Center and University of Minnesota, Minneapolis, MN, USA
| | - Amar Vaswani
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Stephen W Smith
- Department of Emergency Medicine, Hennepin County Medical Center and University of Minnesota, Minneapolis, Minnesota, USA
| | - Mathew Gibbins
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Megan Griffiths
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Andrew R Chapman
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Fiona E Strachan
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Atul Anand
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Martin A Denvir
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Philip D Adamson
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Michelle S D'Souza
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Alasdair J Gray
- Emergency Medicine Research Group Edinburgh (EMeRGE) and Department of Emergency Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - David E Newby
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Fred S Apple
- Department of Laboratory Medicine and Pathology, Hennepin County Medical Center and University of Minnesota, Minneapolis, MN, USA
| | - Nicholas L Mills
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4SB, UK
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8
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Westwood M, van Asselt T, Ramaekers B, Whiting P, Thokala P, Joore M, Armstrong N, Ross J, Severens J, Kleijnen J. High-sensitivity troponin assays for the early rule-out or diagnosis of acute myocardial infarction in people with acute chest pain: a systematic review and cost-effectiveness analysis. Health Technol Assess 2016; 19:1-234. [PMID: 26118801 DOI: 10.3310/hta19440] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Early diagnosis of acute myocardial infarction (AMI) can ensure quick and effective treatment but only 20% of adults with emergency admissions for chest pain have an AMI. High-sensitivity cardiac troponin (hs-cTn) assays may allow rapid rule-out of AMI and avoidance of unnecessary hospital admissions and anxiety. OBJECTIVE To assess the clinical effectiveness and cost-effectiveness of hs-cTn assays for the early (within 4 hours of presentation) rule-out of AMI in adults with acute chest pain. METHODS Sixteen databases, including MEDLINE and EMBASE, research registers and conference proceedings, were searched to October 2013. Study quality was assessed using QUADAS-2. The bivariate model was used to estimate summary sensitivity and specificity for meta-analyses involving four or more studies, otherwise random-effects logistic regression was used. The health-economic analysis considered the long-term costs and quality-adjusted life-years (QALYs) associated with different troponin (Tn) testing methods. The de novo model consisted of a decision tree and Markov model. A lifetime time horizon (60 years) was used. RESULTS Eighteen studies were included in the clinical effectiveness review. The optimum strategy, based on the Roche assay, used a limit of blank (LoB) threshold in a presentation sample to rule out AMI [negative likelihood ratio (LR-) 0.10, 95% confidence interval (CI) 0.05 to 0.18]. Patients testing positive could then have a further test at 2 hours; a result above the 99th centile on either sample and a delta (Δ) of ≥ 20% has some potential for ruling in an AMI [positive likelihood ratio (LR+) 8.42, 95% CI 6.11 to 11.60], whereas a result below the 99th centile on both samples and a Δ of < 20% can be used to rule out an AMI (LR- 0.04, 95% CI 0.02 to 0.10). The optimum strategy, based on the Abbott assay, used a limit of detection (LoD) threshold in a presentation sample to rule out AMI (LR- 0.01, 95% CI 0.00 to 0.08). Patients testing positive could then have a further test at 3 hours; a result above the 99th centile on this sample has some potential for ruling in an AMI (LR+ 10.16, 95% CI 8.38 to 12.31), whereas a result below the 99th centile can be used to rule out an AMI (LR- 0.02, 95% CI 0.01 to 0.05). In the base-case analysis, standard Tn testing was both most effective and most costly. Strategies considered cost-effective depending upon incremental cost-effectiveness ratio thresholds were Abbott 99th centile (thresholds of < £6597), Beckman 99th centile (thresholds between £6597 and £30,042), Abbott optimal strategy (LoD threshold at presentation, followed by 99th centile threshold at 3 hours) (thresholds between £30,042 and £103,194) and the standard Tn test (thresholds over £103,194). The Roche 99th centile and the Roche optimal strategy [LoB threshold at presentation followed by 99th centile threshold and/or Δ20% (compared with presentation test) at 1-3 hours] were extendedly dominated in this analysis. CONCLUSIONS There is some evidence to suggest that hs-CTn testing may provide an effective and cost-effective approach to early rule-out of AMI. Further research is needed to clarify optimal diagnostic thresholds and testing strategies. STUDY REGISTRATION This study is registered as PROSPERO CRD42013005939. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
| | - Thea van Asselt
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Bram Ramaekers
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands
| | | | - Praveen Thokala
- Health Economics and Decision Science Group, School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Manuela Joore
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands
| | | | | | - Johan Severens
- Institute of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Jos Kleijnen
- School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, The Netherlands
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van Beek D, van Zaane B, Looije M, Peelen L, van Klei W. Typical rise and fall of troponin in (peri-procedural) myocardial infarction: A systematic review. World J Cardiol 2016; 8:293-301. [PMID: 27022461 PMCID: PMC4807318 DOI: 10.4330/wjc.v8.i3.293] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/18/2015] [Accepted: 01/07/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify the typical shape of the rise and fall curve of troponin (Tn) following the different types of myocardial infarction (MI).
METHODS: We conducted a systematic search in PubMed and Embase including all studies which focused on the kinetics of Tn in MI type 1, type 4 and type 5. Tn levels were standardized using the 99th percentile, a pooled mean with 95%CI was calculated from the weighted means for each time point until 72 h.
RESULTS: A total of 34 of the 2528 studies identified in the systematic search were included. The maximum peak level of the Tn was seen after 6 h after successful reperfusion of an acute MI, after 12 h for type 1 MI and after 72 h for type 5 MI. In type 1 MI there were additional smaller peaks at 1 h and at 24 h. After successful reperfusion of an acute MI there was a second peak at 24 h. There was not enough data available to analyze the Tn release after MI associated with percutaneous coronary intervention (type 4).
CONCLUSION: The typical rise and fall of Tn is different for type 1 MI, successful reperfusion of an acute MI and type 5 MI, with different timing of the peak levels and different slopes of the fall phase.
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Borna C, Frostred KL, Ekelund U. Predictive role of high sensitivity troponin T within four hours from presentation of acute coronary syndrome in elderly patients. BMC Emerg Med 2016; 16:1. [PMID: 26728878 PMCID: PMC4700698 DOI: 10.1186/s12873-015-0064-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 12/07/2015] [Indexed: 11/10/2022] Open
Abstract
Background Previous studies indicate that the introduction of high-sensitivity troponin T (HsTnT) as a diagnostic tool for chest pain patients in the emergency department (ED) creates a high rate of false-positive tests. In the present study, we aimed to evaluate if the diagnostic performance of HsTnT for acute coronary syndrome (ACS) up to 3–4 h after presentation in elderly patients can be improved. Methods A total of 477 consecutive patients ≥ 75 years, admitted to in-hospital care for chest pain suspicious of ACS, were retrospectively included. HsTnT values at presentation (0 h) and at 3–4 h were analysed. Receiver operating characteristic (ROC) curves were created for absolute and relative changes from 0 to 3–4 h. ACS, non-elective percutaneous coronary intervention, coronary artery bypass grafting and death of all causes were recorded for all patients during a follow-up of 60 days. Sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV) were analysed for different HsTnT cut-off values at 0 and 3–4 h and for the combination of a HsTnT at presentation and an absolute change from 0 to 3–4 h. Results Twenty-seven percent of the patients had ACS and 21 % acute myocardial infarction (AMI) during the hospital stay. The standard cut-off 14 ng/L gave sensitivity and NPV for ACS of 88 and 90 % at 3–4 h. Specificity and PPV was 38 and 32 % respectively. Analysing for non-ST elevation myocardial infarction (NSTEMI) alone gave a sensitivity and NPV of 100 % but did not improve specificity and PPV. The area under the ROC-curve was larger for absolute than relative HsTnT changes from 0 to 3–4 h. A combination of HsTnT at presentation > 30 ng/L and/or a change > 5 ng/L up to 3–4 h gave a 63 % specificity and a PPV of 46 %, a 99 % sensitivity and a NPV of 99 % for NSTEMI. Conclusion Our study indicates that HsTnT can neither exclude nor confirm ACS within 3–4 h from presentation in patients ≥ 75 years. NSTEMI can be excluded with HsTnT within 3–4 h, but HsTnT cannot be used to rule in NSTEMI during the first 3–4 h, not even by using a combination of the initial HsTnT result and the change from 0 to 3–4 h. With combined criteria, the majority of the positive tests were still false positive. Our results indicate that in patients > 75 years, HsTnT should be used primarily as an early rule-out tool for AMI.
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Affiliation(s)
- Catharina Borna
- Department of Clinical Sciences at Lund, Section of Emergency Medicine, Lund University, Lund, Sweden.
| | - Katarina Lockman Frostred
- Department of Clinical Sciences at Lund, Section of Emergency Medicine, Lund University, Lund, Sweden.
| | - Ulf Ekelund
- Department of Clinical Sciences at Lund, Section of Emergency Medicine, Lund University, Lund, Sweden.
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Bahrmann P, Bertsch T, Sieber CC, Christ M. Management of patients with chest pain presenting to the emergency department: in need for the implementation of the 1 h rapid rule-out algorithm using high-sensitivity troponin I assays in clinical practice. ANNALS OF TRANSLATIONAL MEDICINE 2016; 4:18. [PMID: 26855954 PMCID: PMC4716952 DOI: 10.3978/j.issn.2305-5839.2015.12.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 12/09/2015] [Indexed: 11/14/2022]
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Christ M, Geier F, Popp S, Singler K, Smolarsky A, Bertsch T, Müller C, Greve Y. Diagnostic and prognostic value of high-sensitivity cardiac troponin T in patients with syncope. Am J Med 2015; 128:161-170.e1. [PMID: 25447619 DOI: 10.1016/j.amjmed.2014.09.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/07/2014] [Accepted: 09/08/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVE We examined the diagnostic and predictive value of high-sensitivity cardiac troponin T (cTnThs) in patients with syncope. METHODS We performed an analysis of consecutive patients with syncope presenting to the emergency department. The primary end point was the accuracy to diagnose a cardiac syncope. In addition, the study explored the prognostic relevance of cTnThs in patients with cardiac and noncardiac syncope. RESULTS A total of 360 patients were enrolled (median age, 70.5 years; male, 55.8%; 23.9% aged >80 years). Cardiac syncope was present in 22% of patients, reflex syncope was present in 40% of patients, syncope due to orthostatic hypotension was present in 20% of patients, and unexplained syncope was present in 17.5% of patients. A total of 148 patients (41%) had cTnThs levels above the 99% confidence interval (CI) (cutoff point). The diagnostic accuracy for cTnThs levels to determine the diagnosis of cardiac syncope was quantified by the area under the curve (0.77; CI, 0.72-0.83; P < .001). A comparable area under the curve (0.78; CI, 0.73-0.83; P < .001) was obtained for the predictive value of cTnThs levels within 30 days: Patients with increased cTnThs levels had a 52% likelihood for adverse events, patients with cTnThs levels below the cutoff point had a low risk (negative predictive value, 83.5%). Increased cTnThs levels indicate adverse prognosis in patients with noncardiac causes of syncope, but not in patients with cardiac syncope being a risk factor for adverse outcome by itself. CONCLUSIONS Patients with syncope presenting to the emergency department have a high proportion of life-threatening conditions. cTnThs levels show a limited diagnostic and predictive accuracy for the identification of patients with syncope at high risk.
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Affiliation(s)
- Michael Christ
- Department of Emergency and Intensive Care Medicine, Paracelsus Medical University, Nuremberg, Germany.
| | - Felicitas Geier
- Department of Emergency and Intensive Care Medicine, Paracelsus Medical University, Nuremberg, Germany
| | - Steffen Popp
- Department of Emergency and Intensive Care Medicine, Paracelsus Medical University, Nuremberg, Germany
| | - Katrin Singler
- Institute for Biomedicine of Aging, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Alexander Smolarsky
- Center of Trauma and Orthopaedic Surgery, Helios Vogtland-Klinikum Plauen, Plauen, Germany
| | - Thomas Bertsch
- Department of Clinical Chemistry and Laboratory Medicine, Paracelsus Medical University, Nuremberg, Germany
| | - Christian Müller
- Department of Cardiology, University Hospital Basel, Basel, Switzerland
| | - Yvonne Greve
- Department of Emergency and Intensive Care Medicine, Paracelsus Medical University, Nuremberg, Germany
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Zhelev Z, Hyde C, Youngman E, Rogers M, Fleming S, Slade T, Coelho H, Jones-Hughes T, Nikolaou V. Diagnostic accuracy of single baseline measurement of Elecsys Troponin T high-sensitive assay for diagnosis of acute myocardial infarction in emergency department: systematic review and meta-analysis. BMJ 2015; 350:h15. [PMID: 25646632 PMCID: PMC4300724 DOI: 10.1136/bmj.h15] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To obtain summary estimates of the accuracy of a single baseline measurement of the Elecsys Troponin T high-sensitive assay (Roche Diagnostics) for the diagnosis of acute myocardial infarction in patients presenting to the emergency department. DESIGN Systematic review and meta-analysis of diagnostic test accuracy studies. DATA SOURCES Medline, Embase, and other relevant electronic databases were searched for papers published between January 2006 and December 2013. STUDY SELECTION Studies were included if they evaluated the diagnostic accuracy of a single baseline measurement of Elecsys Troponin T high-sensitive assay for the diagnosis of acute myocardial infarction in patients presenting to the emergency department with suspected acute coronary syndrome. STUDY APPRAISAL AND DATA SYNTHESIS The first author screened all titles and abstracts identified through the searches and selected all potentially relevant papers. The screening of the full texts, the data extraction, and the methodological quality assessment, using the adapted QUADAS-2 tool, were conducted independently by two reviewers with disagreements being resolved through discussion or arbitration. If appropriate, meta-analysis was conducted using the hierarchical bivariate model. RESULTS Twenty three studies reported the performance of the evaluated assay at presentation. The results for 14 ng/L and 3-5 ng/L cut-off values were pooled separately. At 14 ng/L (20 papers), the summary sensitivity was 89.5% (95% confidence interval 86.3% to 92.1%) and the summary specificity was 77.1% (68.7% to 83.7%). At 3-5 ng/L (six papers), the summary sensitivity was 97.4% (94.9% to 98.7%) and the summary specificity was 42.4% (31.2% to 54.5%). This means that if 21 of 100 consecutive patients have the target condition (21%, the median prevalence across the studies), 2 (95% confidence interval 2 to 3) of 21 patients with acute myocardial infarction will be missed (false negatives) if 14 ng/L is used as a cut-off value and 18 (13 to 25) of 79 patients without acute myocardial infarction will test positive (false positives). If the 3-5 ng/L cut-off value is used, <1 (0 to 1) patient with acute myocardial infarction will be missed and 46 (36 to 54) patients without acute myocardial infarction will test positive. CONCLUSIONS The results indicate that a single baseline measurement of the Elecsys Troponin T high-sensitive assay could be used to rule out acute myocardial infarction if lower cut-off values such as 3 ng/L or 5 ng/L are used. However, this method should be part of a comprehensive triage strategy and may not be appropriate for patients who present less than three hours after symptom onset. Care must also be exercised because of the higher imprecision of the evaluated assay and the greater effect of lot-to-lot reagent variation at low troponin concentrations. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration number CRD42013003926.
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Affiliation(s)
- Zhivko Zhelev
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Christopher Hyde
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Emily Youngman
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Morwenna Rogers
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Simon Fleming
- Clinical Chemistry, Royal Cornwall Hospital, Treliske, Truro TR1 3LQ, UK
| | - Toby Slade
- Emergency Department, Royal Cornwall Hospital, Truro TR1 3LJ, UK
| | - Helen Coelho
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Tracey Jones-Hughes
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
| | - Vasilis Nikolaou
- Institute of Health Research, University of Exeter Medical School, Exeter EX2 4SG, UK
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