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Strandkjær N, Jørgensen N, Hasselbalch RB, Kristensen J, Knudsen MSS, Kock TO, Lange T, Lindholm MG, Bruun NE, Holmvang L, Terkelsen CJ, Pedersen CK, Christensen MK, Lassen JF, Hilsted L, Ladefoged S, Nybo M, Bor MV, Dahl M, Hansen AB, Kamstrup PR, Bundgaard H, Torp‐Pedersen C, Iversen KK. DANSPOT: A Multicenter Stepped-Wedge Cluster-Randomized Trial of the Reclassification of Acute Myocardial Infarction: Rationale and Study Design. J Am Heart Assoc 2024; 13:e033493. [PMID: 38639348 PMCID: PMC11179950 DOI: 10.1161/jaha.123.033493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/13/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Cardiac troponins are the preferred biomarkers for the diagnosis of acute myocardial infarction. Although sex-specific 99th percentile thresholds of troponins are recommended in international guidelines, the clinical effect of their use is poorly investigated. The DANSPOT Study (The Danish Study of Sex- and Population-Specific 99th percentile upper reference limits of Troponin) aims to evaluate the clinical effect of a prospective implementation of population- and sex-specific diagnostic thresholds of troponins into clinical practice. METHODS This study is a nationwide, multicenter, stepped-wedge cluster-randomized trial of the implementation of population- and sex-specific thresholds of troponins in 22 of 23 clinical centers in Denmark. We established sex-specific thresholds for 5 different troponin assays based on troponin levels in a healthy Danish reference population. Centers will sequentially cross over from current uniform manufacturer-derived thresholds to the new population- and sex-specific thresholds. The primary cohort is defined as patients with symptoms suggestive of acute coronary syndrome having at least 1 troponin measurement performed within 24 hours of arrival with a peak troponin value between the current uniform threshold and the new sex-specific female and male thresholds. The study will compare the occurrence of the primary outcome, defined as a composite of nonfatal myocardial infarction, unplanned revascularization, and all-cause mortality within 1 year, separately for men and women before and after the implementation of the new sex-specific thresholds. CONCLUSIONS The DANSPOT Study is expected to show the clinical effects on diagnostics, treatment, and clinical outcomes in patients with myocardial infarction of implementing sex-specific diagnostic thresholds for troponin based on a national Danish reference population. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT05336435.
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Affiliation(s)
- Nina Strandkjær
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of Clinical MedicineUniversity of CopenhagenDenmark
| | - Nicoline Jørgensen
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
| | - Rasmus Bo Hasselbalch
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of Clinical MedicineUniversity of CopenhagenDenmark
| | - Jonas Kristensen
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of Clinical MedicineUniversity of CopenhagenDenmark
| | - Marie Sophie Sander Knudsen
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
| | - Thilde Olivia Kock
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
| | - Theis Lange
- Department of Public HealthUniversity of CopenhagenDenmark
| | | | - Niels Eske Bruun
- Department of Clinical MedicineUniversity of CopenhagenDenmark
- Department of CardiologyZealand University HospitalRoskildeDenmark
| | - Lene Holmvang
- Department of CardiologyCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | | | | | | | | | - Linda Hilsted
- Department of Clinical BiochemistryCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Søren Ladefoged
- Department of Clinical BiochemistryAarhus University HospitalAarhusDenmark
| | - Mads Nybo
- Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
| | - Mustafa Vakur Bor
- Department of Clinical BiochemistryUniversity of Hospital of South DenmarkEsbjergDenmark
| | - Morten Dahl
- Department of Clinical MedicineUniversity of CopenhagenDenmark
- Department of Clinical BiochemistryZealand University HospitalKøgeDenmark
| | | | - Pia Rørbæk Kamstrup
- Department of Clinical BiochemistryCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
| | - Henning Bundgaard
- Department of Clinical MedicineUniversity of CopenhagenDenmark
- Department of CardiologyCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Christian Torp‐Pedersen
- Department of Public HealthUniversity of CopenhagenDenmark
- Department of CardiologyCopenhagen University Hospital—North ZealandHillerødDenmark
| | - Kasper Karmark Iversen
- Department of Emergency MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of CardiologyCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
- Department of Clinical MedicineUniversity of CopenhagenDenmark
- Department of Internal MedicineCopenhagen University Hospital—Herlev and GentofteHerlevDenmark
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2
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Tiwari D, Aw TC. Optimizing the Clinical Use of High-Sensitivity Troponin Assays: A Review. Diagnostics (Basel) 2023; 14:87. [PMID: 38201396 PMCID: PMC10795745 DOI: 10.3390/diagnostics14010087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/14/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Ischemic heart diseases (IHDs) remain a global health concern. Many IHD cases go undiagnosed due to challenges in the initial diagnostic process, particularly in cases of acute myocardial infarction (AMI). High-sensitivity cardiac troponin (hs-cTn) assays have revolutionized myocardial injury assessment, but variations in diagnostic cut-off values and population differences have raised challenges. This review addresses essential laboratory and clinical considerations for hs-cTn assays. Laboratory guidelines discuss the importance of establishing standardized 99th-percentile upper reference limits (URLs) considering factors such as age, sex, health status, and analytical precision. The reference population should exclude individuals with comorbidities like diabetes and renal disease, and rigorous selection is crucial. Some clinical guidelines emphasize the significance of sex-specific URL limits while others do not. They highlight the use of serial troponin assays for AMI diagnosis. In addition, timely reporting of accurate hs-cTn results is essential for effective clinical use. This review aims to provide a clearer understanding among laboratory professionals and clinicians on how to optimize the use of hs-cTn assays in clinical settings in order to ensure accurate AMI diagnosis and thus improve patient care and outcomes.
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Affiliation(s)
- Dipti Tiwari
- Independent Researcher, Singapore 069046, Singapore;
| | - Tar Choon Aw
- Department of Laboratory Medicine, Changi General Hospital, Singapore 529889, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore 119228, Singapore
- Pathology Academic Clinical Program, Duke-NUS Graduate School of Medicine, Singapore 169857, Singapore
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3
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Min MK, Lee D, Shon SW, Ryu JH, Wang I, Lee MJ, Chun M, Hyun T. Russula subnigricans Poisoning Causes Severe Rhabdomyolysis That Could be Misdiagnosed as Non-ST Segment Elevation Myocardial Infarction. Wilderness Environ Med 2022; 33:324-328. [PMID: 35589501 DOI: 10.1016/j.wem.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 11/21/2022]
Abstract
Mushroom poisoning and subsequently the number of patients visiting emergency rooms are increasing, as well as the proportion of fatal mushroom poisonings. Myocytic mushroom poisoning is one of the new clinical classifications. This report documents the course of a family with Russula subnigricans poisoning complicated by severe rhabdomyolysis, including a case that was misdiagnosed as myocardial infarction. A 64-y-old man visited our hospital with symptoms including substernal chest discomfort, nausea, vomiting, and myalgia, lasting for 12 h. His laboratory tests showed elevated serum high-sensitive troponin I. He was diagnosed with non-ST segment elevation myocardial infarction. After that, 2 family members who ate mushrooms together were transferred from a local emergency room with the diagnosis of rhabdomyolysis. Consequently, rhabdomyolysis due to mushroom poisoning was diagnosed. They were hospitalized in the intensive care unit. After admission, conservative management, including primary fluid resuscitation, was performed, and the patients were discharged without complications. R subnigricans poisoning was revealed after investigation and should be considered in mushroom poisoning with rhabdomyolysis. Early recognition and intensive supportive care are important for mushroom poisoning patients.
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Affiliation(s)
- Mun Ki Min
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Daesup Lee
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea.
| | - Seung Woo Shon
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ji Ho Ryu
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Iljae Wang
- Department of Emergency Medicine, Pusan National University Hospital, Busan, Korea
| | - Min Jee Lee
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Mose Chun
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Taegyu Hyun
- Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
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4
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Rafiudeen R, Barlis P, White HD, van Gaal W. Type 2 MI and Myocardial Injury in the Era of High-sensitivity Troponin. Eur Cardiol 2022; 17:e03. [PMID: 35284006 PMCID: PMC8900132 DOI: 10.15420/ecr.2021.42] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/21/2021] [Indexed: 11/21/2022] Open
Abstract
Troponin has been the cornerstone of the definition of MI since its introduction to clinical practice. High-sensitivity troponin has allowed clinicians to detect degrees of myocardial damage at orders of magnitude smaller than previously and is challenging the definitions of MI, with implications for patient management and prognosis. Detection and diagnosis are no doubt enhanced by the greater sensitivity afforded by these markers, but perhaps at the expense of specificity and clarity. This review focuses on the definitions, pathophysiology, prognosis, prevention and management of type 2 MI and myocardial injury. The five types of MI were first defined in 2007 and were recently updated in 2018 in the fourth universal definition of MI. The authors explore how this pathophysiological classification is used in clinical practice, and discuss some of the unanswered questions in this era of availability of high-sensitivity troponin.
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Affiliation(s)
- Rifly Rafiudeen
- Department of Cardiology, The Northern Hospital, Melbourne, Australia; Department of Medicine, The University of Melbourne, Melbourne, Australia
| | - Peter Barlis
- Department of Cardiology, The Northern Hospital, Melbourne, Australia; Department of Medicine, The University of Melbourne, Melbourne, Australia
| | - Harvey D White
- Green Lane Cardiovascular Service, Auckland City Hospital, Auckland, New Zealand
| | - William van Gaal
- Department of Cardiology, The Northern Hospital, Melbourne, Australia; Department of Medicine, The University of Melbourne, Melbourne, Australia
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5
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Westwood M, Ramaekers B, Grimm S, Worthy G, Fayter D, Armstrong N, Buksnys T, Ross J, Joore M, Kleijnen J. High-sensitivity troponin assays for early rule-out of acute myocardial infarction in people with acute chest pain: a systematic review and economic evaluation. Health Technol Assess 2021; 25:1-276. [PMID: 34061019 PMCID: PMC8200931 DOI: 10.3310/hta25330] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Early diagnosis of acute myocardial infarction is important, but only 20% of emergency admissions for chest pain will actually have an acute myocardial infarction. High-sensitivity cardiac troponin assays may allow rapid rule out of myocardial infarction and avoid unnecessary hospital admissions. OBJECTIVES To assess the clinical effectiveness and cost-effectiveness of high-sensitivity cardiac troponin assays for the management of adults presenting with acute chest pain, in particular for the early rule-out of acute myocardial infarction. METHODS Sixteen databases were searched up to September 2019. Review methods followed published guidelines. Studies were assessed for quality using appropriate risk-of-bias tools. 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 associated with different troponin testing methods. The de novo model consisted of a decision tree and a state-transition cohort model. A lifetime time horizon (of 60 years) was used. RESULTS Thirty-seven studies (123 publications) were included in the review. The high-sensitivity cardiac troponin test strategies evaluated are defined by the combination of four factors (i.e. assay, number and timing of tests, and threshold concentration), resulting in a large number of possible combinations. Clinical opinion indicated a minimum clinically acceptable sensitivity of 97%. When considering single test strategies, only those using a threshold at or near to the limit of detection for the assay, in a sample taken at presentation, met the minimum clinically acceptable sensitivity criterion. The majority of the multiple test strategies that met this criterion comprised an initial rule-out step, based on high-sensitivity cardiac troponin levels in a sample taken on presentation and a minimum symptom duration, and a second stage for patients not meeting the initial rule-out criteria, based on presentation levels of high-sensitivity cardiac troponin and absolute change after 1, 2 or 3 hours. Two large cluster randomised controlled trials found that implementation of an early rule-out pathway for myocardial infarction reduced length of stay and rate of hospital admission without increasing cardiac events. In the base-case analysis, standard troponin testing was both the most effective and the most costly. Other testing strategies with a sensitivity of 100% (subject to uncertainty) were almost equally effective, resulting in the same life-year and quality-adjusted life-year gain at up to four decimal places. Comparisons based on the next best alternative showed that for willingness-to-pay values below £8455 per quality-adjusted life-year, the Access High Sensitivity Troponin I (Beckman Coulter, Brea, CA, USA) [(symptoms > 3 hours AND < 4 ng/l at 0 hours) OR (< 5 ng/l AND Δ < 5 ng/l at 0 to 2 hours)] would be cost-effective. For thresholds between £8455 and £20,190 per quality-adjusted life-year, the Elecsys® Troponin-T high sensitive (Roche, Basel, Switzerland) (< 12 ng/l at 0 hours AND Δ < 3 ng/l at 0 to 1 hours) would be cost-effective. For a threshold > £20,190 per quality-adjusted life-year, the Dimension Vista® High-Sensitivity Troponin I (Siemens Healthcare, Erlangen, Germany) (< 5 ng/l at 0 hours AND Δ < 2 ng/l at 0 to 1 hours) would be cost-effective. CONCLUSIONS High-sensitivity cardiac troponin testing may be cost-effective compared with standard troponin testing. STUDY REGISTRATION This study is registered as PROSPERO CRD42019154716. FUNDING This project was funded by the National Institute for Health Research (NIHR) Evidence Synthesis programme and will be published in full in Health Technology Assessment; Vol. 25, No. 33. See the NIHR Journals Library website for further project information.
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Affiliation(s)
| | - Bram Ramaekers
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University, Maastricht, the Netherlands
| | - Sabine Grimm
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University, Maastricht, the Netherlands
| | | | | | | | | | | | - Manuela Joore
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University, Maastricht, the Netherlands
| | - Jos Kleijnen
- Kleijnen Systematic Reviews Ltd, York, UK
- School for Public Health and Primary Care, Care and Public Health Research Institute, Maastricht University, Maastricht, the Netherlands
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6
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Kim JW, Kim H, Yun YM, Lee KR, Kim HJ. Absolute Change in High-Sensitivity Cardiac Troponin I at Three Hours After Presentation is Useful for Diagnosing Acute Myocardial Infarction in the Emergency Department. Ann Lab Med 2020; 40:474-480. [PMID: 32539303 PMCID: PMC7295960 DOI: 10.3343/alm.2020.40.6.474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/30/2020] [Accepted: 06/01/2020] [Indexed: 11/22/2022] Open
Abstract
Background A rise and/or fall in cardiac troponin value with at least one value above the 99th percentile upper reference limit is essential for acute myocardial infarction (AMI) diagnosis. We evaluated the clinical usefulness of serial high-sensitivity cardiac troponin I (hs-cTnI) measurements in AMI diagnosis, in terms of the predictability of absolute and relative changes. Methods For this retrospective, forward observational study, we enrolled 281 patients older than 18 years who presented with chest pain at the emergency department (ED) between August 2015 and December 2016. The patients were grouped as AMI and non-AMI, and 73 (26%) were diagnosed as having AMI. Hs-cTnI (Abbott Diagnostics, Abbott Park, IL, USA) was measured at presentation and 3 hours later. We assessed the diagnostic performance of the absolute and relative changes in hs-cTnI. Results The cut-off values to predict AMI were 16.2 ng/L and 42.1% for the absolute and relative hs-cTnI changes, respectively. The area under the curve of hs-cTnI for AMI diagnosis was larger for absolute changes than for relative changes [0.96 (95% confidence interval [CI], 0.92–0.98) vs 0.89 (95% CI, 0.85–0.93)] (P=0.014). Conclusions The absolute hs-cTnI change at 3 hours after presentation was superior to the relative change, and a rise and/or fall in hs-cTnI of >16.2 ng/L at 3 hours after presentation was useful to identify AMI in patients presenting at the ED.
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Affiliation(s)
- Jong Won Kim
- Department of Emergency Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Hanah Kim
- Department of Laboratory Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Yeo-Min Yun
- Department of Laboratory Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Kyeong Ryong Lee
- Department of Emergency Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Hyun Joong Kim
- Division of Cardiology, Department of Internal Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
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7
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Tan WCJ, Inoue K, AbdelWareth L, Giannitsis E, Kasim S, Shiozaki M, Aw TC, Cheng F, Dung HT, Li YH, Lim SH, Lukito AA, Than M, Chu FY, Devasia T, Lee CC, Phrommintikul A, Youn JC, Chew DP. The Asia-Pacific Society of Cardiology (APSC) Expert Committee Consensus Recommendations for Assessment of Suspected Acute Coronary Syndrome Using High-Sensitivity Cardiac Troponin T in the Emergency Department. Circ J 2019; 84:136-143. [PMID: 31852863 DOI: 10.1253/circj.cj-19-0874] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The Asia-Pacific Society of Cardiology (APSC) high-sensitivity troponin T (hs-TnT) consensus recommendations and rapid algorithm were developed to provide guidance for healthcare professionals in the Asia-Pacific region on assessing patients with suspected acute coronary syndrome (ACS) using a hs-TnT assay. Experts from Asia-Pacific convened in 2 meetings to develop evidence-based consensus recommendations and an algorithm for appropriate use of the hs-TnT assay. The Expert Committee defined a cardiac troponin assay as a high-sensitivity assay if the total imprecision is ≤10% at the 99th percentile of the upper reference limit and measurable concentrations below the 99th percentile are attainable with an assay at a concentration value above the assay's limit of detection for at least 50% of healthy individuals. Recommendations for single-measurement rule-out/rule-in cutoff values, as well as for serial measurements, were also developed. The Expert Committee also adopted similar hs-TnT cutoff values for men and women, recommended serial hs-TnT measurements for special populations, and provided guidance on the use of point-of-care troponin T devices in individuals suspected of ACS. These recommendations should be used in conjunction with all available clinical evidence when making the diagnosis of ACS.
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Affiliation(s)
- Wei Chieh Jack Tan
- Department of Cardiology, National Heart Centre Singapore.,Department of Cardiology, Sengkang General Hospital
| | - Kenji Inoue
- Department of Cardiology, Juntendo University Nerima Hospital
| | | | - Evangelos Giannitsis
- Departments of Cardiology, Angiology and Pulmonology, University Hospital Heidelberg
| | | | | | - Tar Choon Aw
- Department of Laboratory Medicine, Changi General Hospital
| | | | - Ho Thuong Dung
- Cardiovascular Center and Interventional Cardiology, Thong Nhat Hospital
| | - Yi-Heng Li
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University
| | - Swee Han Lim
- Department of Emergency Medicine, Singapore General Hospital
| | | | - Martin Than
- Department of Emergency Medicine, Christchurch Public Hospital
| | - Fang-Yeh Chu
- Department of Clinical Pathology, Far Eastern Memorial Hospital.,Graduate School of Biotechnology and Bioengineering, Yuan Ze University.,Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology
| | - Tom Devasia
- Department of Cardiology, Kasturba Medical College, Manipal Academy of Higher Education
| | - Chien-Chang Lee
- Department of Emergency Medicine, National Taiwan University Hospital
| | | | - Jong-Chan Youn
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea
| | - Derek P Chew
- Department of Cardiovascular Medicine, Flinders University
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8
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Li S, Li Z, Hou X, Sun J, Kang L, Cheng Y, Tao Y, Li Z, Chen X, Zhang D, Yan X, Wang S, Gao Y, Wang Q, Lin Y, Yin C, Zhang J, Gao Y, Huang J, Wu X, Li N, Su W, Liu H, Sun T. Safety and cost analysis of early discharge following percutaneous coronary intervention for acute coronary syndrome in patients with diabetes mellitus. J Int Med Res 2019; 47:3905-3917. [PMID: 31189388 PMCID: PMC6726824 DOI: 10.1177/0300060519842777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 03/18/2019] [Indexed: 11/28/2022] Open
Abstract
Objective To evaluate the safety and cost of early discharge compared with ordinary discharge in patients with diabetes mellitus (DM) following percutaneous coronary intervention (PCI) for acute coronary syndrome. Methods We performed a retrospective analysis of prospectively collected data from 474 patients with DM who were discharged from hospital following PCI at a regional center between 2012 and 2015. Results A total of 192 patients (40.5%) were included in the early discharge group and 282 patients (59.5%) were included in the ordinary group. Mortality and morbidity after PCI were recorded. Kaplan–Meier analysis showed similar prognosis between the two groups at 30 days and at 1 year after discharge. However, hospitalization expenses for the regular discharge group were significantly higher than those of the early discharge group (RMB65,750 vs. RMB50,983). Conclusion Our findings demonstrate that early discharge of patients with DM following PCI for acute coronary syndrome is safe compared with ordinary discharge, and may reduce hospitalization costs.
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Affiliation(s)
- Shihong Li
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Zhizhong Li
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Xuejian Hou
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Junping Sun
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Lihui Kang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yutong Cheng
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Ying Tao
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Zhao Li
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Xuanzu Chen
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Donghua Zhang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Xianliang Yan
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Su Wang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yulong Gao
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Qian Wang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yun Lin
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Chengqian Yin
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Jingmei Zhang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yun Gao
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Ji Huang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Xiangyu Wu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Nan Li
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Wang Su
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Honghong Liu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Tao Sun
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
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9
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Zheng W, Ma J, Wu S, Wang G, Zhang H, Zheng J, Xu F, Wang J, Chen Y. Effective combination of isolated symptom variables to help stratifying acute undifferentiated chest pain in the emergency department. Clin Cardiol 2019; 42:467-475. [PMID: 30834545 PMCID: PMC6712332 DOI: 10.1002/clc.23170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Symptom is still indispensable for the stratification of chest pain in the emergency department. However, it is a sophisticated aggregation of several aspects of characteristics and effective combination of those variables remains deficient. We aimed to develop and validate a chest pain symptom score (CPSS) to address this issue. HYPOTHESIS The CPSS may help stratifying acute undifferentiated chest pain in ED. METHODS Patients with non-ST segment elevation chest pain and negative cardiac troponin (cTn) over 3 hours after symptom onset were consecutively recruited as the derivation cohort. Logistic regression analyses identified statistical predictors from all symptom aspects for 30-day acute myocardial infarction (AMI) or death. The performance of CPSS was compared with the symptom classification methods of the history variable in the history, electrocardiograph, age, risk factors, troponin (HEART) score. This new model was validated in a separated cohort of patients with negative cTn within 3 hours. RESULTS Seven predictors in four aspects of chest pain symptom were identified. The CPSS was an independent predictor for 30-day AMI or death (P < 0.001). In the derivation (n = 1434) and validation (n = 976) cohorts, the expected and observed event rates were well calibrated (Hosmer-Lemeshow test P > 0.30), and the c-statistics of CPSS were 0.72 and 0.73, separately, significantly better than the previous history classifications in HEART score (P < 0.001). Replacing the history variable with the CPSS improved the discrimination and risk classification of HEART score significantly (P < 0.001). CONCLUSIONS The effective combination of isolated variables was meaningful to make the most stratification value of symptoms. This model should be considered as part of a comprehensive strategy for chest pain triage.
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Affiliation(s)
- Wen Zheng
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Jingjing Ma
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Shuo Wu
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Guangmei Wang
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - He Zhang
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Jiaqi Zheng
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Feng Xu
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Jiali Wang
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
| | - Yuguo Chen
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.,Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Qilu Hospital, Shandong University, Jinan, China.,Institute of Emergency and Critical Care Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan, China
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10
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Kost GJ, Zadran A, Duong TT, Pham TT, Ho AVD, Nguyen NV, Ventura IJ, Zadran L, Sayenko MV, Nguyen K. Point-of-Care Diagnosis of Acute Myocardial Infarction in Central Vietnam: International Exchange, Needs Assessment, and Spatial Care Paths. POINT OF CARE 2018; 17:73-92. [PMID: 30245595 PMCID: PMC6135481 DOI: 10.1097/poc.0000000000000167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Objectives were to (a) advance point-of-care (POC) education, international exchange, and culture; (b) report needs assessment survey results from Thua Thien Hue Province, Central Vietnam; (c) determine diagnostic capabilities in regional health care districts of the small-world network of Hue University Medical Center; and (d) recommend Spatial Care Paths that accelerate the care of acute myocardial infarction (AMI) patients. METHODS We organized progressively focused, intensive, and interactive lectures, workshops, and investigative teamwork over a 2-year period. We surveyed hospital staff in person to determine the status of diagnostic testing at 15 hospitals in 7 districts. Questions focused on cardiac rapid response, prediabetes/diabetes, infectious diseases, and other serious challenges, including epidemic preparedness. RESULTS Educational exchange revealed a nationwide shortage of POC coordinators. Throughout the province, ambulances transfer patients primarily between hospitals, rarely picking up from homes. No helicopter rescue was available. Ambulance travel times from distant sites to referral hospitals were excessive, longer in costal and mountainous areas. Most hospitals (92.3%) used electrocardiogram and creatine phosphokinase-MB isoenzyme to diagnose AMI. Cardiac troponin I/T testing was performed only at large referral hospitals. CONCLUSIONS Central Vietnam must improve rapid diagnosis and treatment of AMI patients. Early upstream POC cardiac troponin testing on Spatial Care Paths will expedite transfers directly to hospitals capable of intervening, improving outcomes following coronary occlusion. Point-of-care coordinator certification and financial support will enhance standards of care cost-effectively. Training young physicians pivots on high-value evidence-based learning when POC cardiac troponin T/cardiac troponin I biomarkers are in place for rapid decision making, especially in emergency rooms.
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Affiliation(s)
- Gerald J. Kost
- School of Medicine, University of California, Davis; and
| | | | - Thuan T.B. Duong
- Hue University of Medicine and Pharmacy, University of Hue, Vietnam
| | - Tung T. Pham
- Hue University of Medicine and Pharmacy, University of Hue, Vietnam
| | - An V. D. Ho
- Hue University of Medicine and Pharmacy, University of Hue, Vietnam
| | - Nhan V. Nguyen
- Hue University of Medicine and Pharmacy, University of Hue, Vietnam
| | - Irene J. Ventura
- From the Point-of-Care Testing Center for Teaching and Research (POCT•CTR) and
| | - Layma Zadran
- From the Point-of-Care Testing Center for Teaching and Research (POCT•CTR) and
| | - Mykhaylo V. Sayenko
- From the Point-of-Care Testing Center for Teaching and Research (POCT•CTR) and
| | - Kelly Nguyen
- From the Point-of-Care Testing Center for Teaching and Research (POCT•CTR) and
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11
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Dahn CM, Wijesekera O, Garcia GE, Karasek K, Jacquet GA. Acute care for the three leading causes of mortality in lower-middle-income countries: A systematic review. Int J Crit Illn Inj Sci 2018; 8:117-142. [PMID: 30181970 PMCID: PMC6116305 DOI: 10.4103/ijciis.ijciis_22_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
According to the World Health Organization, the three leading causes of mortality in lower-middle-income countries (LMIC) are ischemic heart disease (IHD), stroke, and lower respiratory infections (LRIs), causing 111.8, 68.8, and 51.5 annual deaths per 100,000, respectively. Due to barriers to healthcare, patients frequently present in critical stages of these diseases. Measured implementations in critical care in LMIC have been published; however, the literature has not been formally reviewed. We performed a systematic review of the literature indexed in PubMed as of October 2017. Abstracts were limited to human studies in English, French, and Spanish, conducted in LMIC, and containing quantitative data on acute care of IHD, stroke, and LRI. The search resulted in 4994 unique abstracts. Through multiple rounds of screening using criteria determined a priori, 161 manuscripts were identified: 38 for IHD, 20 for stroke, 26 for adult LRI, and 78 for pediatric LRI. These studies, predominantly from Asia, demonstrate successful diagnostic and treatment measures used in providing acute care for patients in LMIC. Given that, only four manuscripts originated in Central or South America, original research from these areas is lacking. IHD, stroke, and LRIs are significant causes of mortality, especially in LMIC. Diagnostic and therapeutic interventions for IHD (monitoring, medications, thrombolytics, percutaneous intervention, coronary artery bypass graft), stroke (therapeutic hypothermia, medications, and thrombolytics), and LRI (oxygen saturation measurement, diagnostic ultrasound, administration of oxygen, appropriate antibiotics, and other medications) have been studied in LMIC and published.
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Affiliation(s)
- Cassidy M Dahn
- Department of Critical Care Medicine, Einstein/Montefiore Medical Center, Bronx, NY, USA
| | | | - Grace E. Garcia
- Department of Emergency Medicine, Boston Medical Center, Boston, MA, USA
| | - Konrad Karasek
- Department of Emergency Medicine, Boston Medical Center, Boston, MA, USA
| | - Gabrielle A. Jacquet
- Boston University School of Medicine, Boston, MA, USA
- Department of Emergency Medicine, Boston Medical Center, Boston, MA, USA
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12
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Multi-centre evaluation of recent troponin assays for the diagnosis of NSTEMI. Pract Lab Med 2018; 11:23-32. [PMID: 30014015 PMCID: PMC6045566 DOI: 10.1016/j.plabm.2018.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 02/16/2018] [Accepted: 02/17/2018] [Indexed: 11/25/2022] Open
Abstract
Objectives We aimed to compare the use of nine different cardiac troponin (cTn) assays (2 cTnT and 7 cTnI) for the diagnosis of NSTEMI in a single multi-centre population. Design and methods One hundred and fifty-eight patients were included (mean age 60 years, SD 17 years), including 23 patients (14%) with NSTEMI. Results The analytical comparison highlighted a large heterogeneity of cTn assays, as reflected by percentages of patients with detectable cTn, correlation coefficients, Passing-Bablok comparisons and concordance coefficients. Correlations within cTnI assays were good and correlation within cTnT assays was excellent. Diagnostic performances demonstrated that each cTn assay has specific threshold values. Furthermore, some assays (HS-cTnI and T, cTnI-Pathfast and cTnI-Centaur) indicated high sensitivity and negative predictive value using the limit of detection (LoD) diagnostic strategy. For the latter assays, a significant increase in specificity was found when using the 99th percentile or the H0-H3 strategies, in comparison to the LoD strategy. When applying the European Society of Cardiology H0-H3 algorithm, comparable diagnostic performances were obtained. Conclusion All 9 cTn assays indicated overall good diagnostic performances for the diagnosis of NSTEMI in emergency departments when the recommended algorithm based on the variation of cTn value between two measurements at admission and 3 h later was used. We compare nine troponin assays for the diagnosis of NSTEMI. Each cTn assay owns specific thresholds for the ESC H0-H3 algorithm. All assays present high specificity for NSTEMI diagnosis using H0-H3 algorithm. Assay-specific threshold and delta change values for each cTn assays are mandatory.
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13
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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: 88] [Impact Index Per Article: 12.6] [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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14
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Chapman AR, Newby DE, Mills NL. High-sensitivity cardiac troponin I assays in the diagnosis of acute myocardial infarction. HEART ASIA 2017; 9:88-89. [PMID: 28462952 PMCID: PMC5388928 DOI: 10.1136/heartasia-2016-010867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Andrew R Chapman
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - David E Newby
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Nicholas L Mills
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
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