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Almarzooqi F, Karin A, Mattman A, Easton A, Lee C, Gador A. Resolved Myositis, Normal Creatine Kinase, and Peaking Cardiac Troponin T. J Appl Lab Med 2024; 9:848-853. [PMID: 38712713 DOI: 10.1093/jalm/jfae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/05/2024] [Indexed: 05/08/2024]
Affiliation(s)
- Farida Almarzooqi
- Department of Internal Medicine, University of British Colombia, Vancouver, BC, Canada
- Department of Pediatrics, College of Medicine and Health Sciences, UAE University, Alain, United Arab Emirates
| | - Amir Karin
- Division of Clinical Chemistry, Vancouver General Hospital, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia and Providence Health Care, Vancouver, BC, Canada
| | - Andre Mattman
- Department of Pathology and Laboratory Medicine, University of British Columbia and Providence Health Care, Vancouver, BC, Canada
| | - Alexander Easton
- Department of Pathology and Laboratory Medicine, University of British Columbia and Vancouver General Hospital, Vancouver, BC, Canada
| | - Christopher Lee
- Division of Cardiology, Department of Medicine, Providence Health Care, Vancouver, BC, Canada
| | - Anthony Gador
- General Internal Medicine, Department of Medicine, University of British Columbia and Providence Health Care, Vancouver, BC, Canada
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Chaulin AM. False-Positive Causes in Serum Cardiac Troponin Levels. J Clin Med Res 2022; 14:80-87. [PMID: 35317362 PMCID: PMC8912997 DOI: 10.14740/jocmr4664] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/14/2022] [Indexed: 11/15/2022] Open
Abstract
Cardiac troponins (cTns) are the most valuable and specific markers of cardiovascular diseases, including acute myocardial infarction. These biomarkers can also be used to assess the degree of myocardial damage in non-cardiac diseases that can negatively affect the cells of cardiac muscle tissue. However, in everyday clinical practice, doctors often encounter with false-positive cases of increased cTns. False-positive cases of increased cTns can contribute to incorrect diagnosis and subsequent inadequate treatment, which causes significant harm to the patient. This review discusses some common causes of a false-positive increase in the level of cTns in the blood serum. Such causes are fibrin clots, heterophilic antibodies, alkaline phosphatase, rheumatoid factor, and cross-reactions of diagnostic (anti-cTn) antibodies with skeletal troponins. Detailed attention is focused on the mechanisms of false-positive increase, and ways to identify and combat these false-positive causes of increased cTns. This has an important practical significance in modern clinical practice.
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Affiliation(s)
- Aleksey Michailovich Chaulin
- Department of Cardiology and Cardiovascular Surgery, Faculty of Medicine, Samara State Medical University, Samara, Russia
- Department of Clinical Chemistry, Samara Regional Clinical Cardiological Dispensary, Samara, Russia
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Chaulin AM. Some Common Causes of False Positive Increases in Serum Levels of Cardiac Troponins. Curr Cardiol Rev 2022; 18:e130422203527. [PMID: 35422225 PMCID: PMC9893154 DOI: 10.2174/1573403x18666220413124038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/21/2022] [Accepted: 02/26/2022] [Indexed: 11/22/2022] Open
Abstract
Cardiac troponin molecules (cTnI and cTnT) are the most valuable and in-demand biomarkers for detecting various types of myocardial damage (reversible and irreversible, ischemic, inflammatory, toxic, etc.) in current clinical practice. These biomarkers are widely used for early diagnosis of acute myocardial infarction (AMI) and risk stratification of patients suffering from a number of cardiac (such as myocarditis, heart failure, cardiomyopathy, etc.) and extra-cardiac diseases (such as sepsis, renal failure, pulmonary embolism, neurological pathologies, etc.) that negatively affect the cells of cardiac muscle tissue. However, in daily routine clinical activities, internists and cardiologists often encounter cases of false increases in the concentrations of cardiospecific troponins. A false increase in the concentration of troponins contributes to an incorrect diagnosis and incorrect therapy, which can harm the patient. A false increase in the concentration of troponins contributes to an incorrect diagnosis and incorrect therapy, which can harm the patient, therefore, internists and cardiologists should be well aware of the main reasons and mechanisms for false-positive results cTnI and cTnT. This review article mainly focuses on the causes of falsepositive increases in serum levels of cTnI and cTnT, which provide helpful clues for the accurate diagnosis of AMI and evidence for the differential diagnosis.
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Affiliation(s)
- Aleksey Michailovich Chaulin
- Department of Cardiology and Cardiovascular Surgery, Medical Faculty, Samara State Medical University, Samara, Russia
- Department of Clinical Chemistry, Samara Regional Clinical Cardiological Dispensary, Samara, Russia
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Mitaritonno M, Lupo M, Greco I, Mazza A, Cervellin G. Severe rhabdomyolysis induced by co-administration of cocaine and heroin in a 45 years old man treated with rosuvastatin: a case report. ACTA BIO-MEDICA : ATENEI PARMENSIS 2021; 92:e2021089. [PMID: 33944852 PMCID: PMC8142779 DOI: 10.23750/abm.v92is1.8858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 01/04/2023]
Abstract
The term rhabdomyolysis describes a damage involving striated muscle cells or fibers, often complicated by acute kidney injury. This syndrome can have different causes, but it is generally divided into two main categories: traumatic and non-traumatic rhabdomyolysis. Among medical causes, drugs and abuse substances play a pivotal role, being opioids, alcohol, cocaine and other substances of abuse. Among drugs, the case of statins is certainly the best known. Here we describe a paradigmatic case of a man treated with success and good tolerance for years with rosuvastatin, who developed a severe rhabdomyolysis complicated by AKI needing hemodialysis, after the assumption of two substances of abuse (cocaine and heroin). Emergency physicians need to be aware of this syndrome, since it must be clinically suspected in order to ask the Laboratory for appropriate tests. Given that troponins are now widely accepted as the unique biochemical "gold standard" for diagnosing acute coronary syndromes, CK and myoglobin (the "gold standard" tests for diagnosing rhabdomyolysis) have been erased from admission test panels of the vast majority of emergency departments.
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Affiliation(s)
| | | | - Ivana Greco
- Emergency Department, "S.S. Annunziata" Hospital, Cosenza, Italy.
| | - Angela Mazza
- Emergency Department, "S.S. Annunziata" Hospital, Cosenza, Italy.
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Hsu CK, Wu IW, Chen YT, Peng CH, Tseng YJ, Chen YC, Hung MJ, Kao YC. Value of the high-sensitivity troponin T assay for diagnosis of acute myocardial infarction in patients with and without renal insufficiency. Ren Fail 2020; 42:1142-1151. [PMID: 33183098 PMCID: PMC7671591 DOI: 10.1080/0886022x.2020.1845732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND Cardiac troponins are important markers for diagnosis of acute myocardial infarction (AMI) in general population; however, chronically-elevated troponins levels are often seen in patients with renal insufficiency, which reduce their diagnostic accuracy. The aim of our study was to access the diagnostic values of initial high-sensitive cardiac troponin T (hs-cTnT) and relative change of hs-cTnT for AMI in patients with and without renal insufficiency. METHODS Cardiac care unit patients with elevated hs-cTnT levels in 2017-2018 were enrolled. Receiver operating characteristic (ROC) curves were used to evaluate initial hs-cTnT levels and relative changes after 3 h of enrollment for diagnosis of AMI in patients with estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 (low), and eGFR ≥ 60 mL/min/1.73 m2 (normal). RESULTS Of 359 patients, 240 patients had low eGFR, and 119 patients had normal eGFR. The area under the ROC curve (AUC) for the initial hs-cTnT levels was 0.58 (95% CI, 0.5-0.65, p = 0.053) among patients with low eGFR and 0.54 (95% CI, 0.4-0.67, p = 0.612) among patients with normal eGFR. AUCs for relative changes of hs-cTnT were 0.82 (95% CI, 0.76-0.88, p < 0.001) in patients with low eGFR and 0.82 (95% CI, 0.71-0.91, p < 0.001) in patients with normal eGFR. Optimal cutoff values for the relative changes in hs-cTnT were 16% and 12% in patients with low eGFR and normal eGFR, respectively. CONCLUSIONS Relative changes in hs-cTnT levels had better diagnostic accuracy than initial hs-cTnT levels.
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Affiliation(s)
- Cheng-Kai Hsu
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - I-Wen Wu
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yih-Ting Chen
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chia-Huei Peng
- Department of Pediatric Gastroenterology and Nutrition, Mackay Children's Hospital, Taipei, Taiwan
| | - Yi-Ju Tseng
- Department of Information Management, Chang Gung University, Taoyuan, Taiwan.,Department of Laboratory Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Chang Chen
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ming-Jui Hung
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Departments of Cardiology and Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung
| | - Yu-Cheng Kao
- Departments of Cardiology and Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung
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Habte ML, Melka DS, Degef M, Menon MKC, Yifter H, Feyisa TO. Comparison of Lipid Profile, Liver Enzymes, Creatine Kinase and Lactate Dehydrogenase Among Type II Diabetes Mellitus Patients on Statin Therapy. Diabetes Metab Syndr Obes 2020; 13:763-773. [PMID: 32256093 PMCID: PMC7090212 DOI: 10.2147/dmso.s234382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/16/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM) is an epidemic disease affecting millions worldwide; the majority being type 2 diabetes mellitus (T2DM). Diabetes mellitus has been shown to be an important risk factor for the development of a variety of cardiovascular diseases, which are becoming common in Ethiopia. Consequently, risk-reducing statin therapy is recommended for nearly all patients with T2DM at 40 years of age or older regardless of cholesterol level. However, some controversies exist regarding its safety. OBJECTIVE The aim of this study was to assess and compare the levels of lipid profile, liver enzymes, creatine kinase-MB (CK-MB) and lactate dehydrogenase (LDH) among T2DM patients on statin therapy. METHODOLOGY A hospital-based cross-sectional study was conducted on a total of 100 T2DM patients. The study participants were divided into four groups consisting of equal numbers of participants (n = 25). Group I, II, and III were T2DM patients who were on statin therapy for 14 days-6 months, 6-18 months and ˃18 months, respectively. Group IV consisted of T2DM patients who were not on statin therapy. Convenient sampling technique was implemented till the required number had been achieved. Sociodemographic data was collected by using a standardized questionnaire. Fasting blood was collected and lipid profile, liver enzymes, CK-MB, LDH and fasting blood sugar were analyzed. Data was entered using epi-data and analyzed by one way ANOVA followed by Tukey post hoc multiple comparison tests using SPSS V. 20.00. A P-value < 0.05 was considered statistically significant. RESULTS The mean values of total cholesterol and TAG were significantly lower among group III as compared to group I (P-values = 0.019 & 0.01). Similarly, LDL-c was significantly lower among group III as compared to group I (P = 0.022) and group IV (P = 0.027). Serum liver enzymes, CK-MB and LDH were not significantly different among the study groups (P > 0.05). The mean values of alanine aminotransferase (ALT) and AST were found within normal range while mean ALP was higher in all study groups. Fasting blood glucose value was not significantly different among the study groups, but higher than normal cut-off value in all groups. CONCLUSION Statin therapy taken for a longer time has an effect in lowering total cholesterol, LDL- c and TAG in T2DM patients. Statin therapy has not brought significant change on CK-MB, LDH, liver enzymes and other parameters among T2DM patients.
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Affiliation(s)
- Mezgebu Legesse Habte
- Department of Biochemistry, School of Medicine, College of Health and Medical Sciences, Harmaya University, Harar, Ethiopia
- Correspondence: Mezgebu Legesse Habte Department of Biochemistry, School of Medicine, College of Health and Medical Sciences, Harmaya University, EthiopiaTel +251 934095576 Email
| | - Daniel Seifu Melka
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Maria Degef
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - M K C Menon
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Helen Yifter
- Department of Medical Endocrinology, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Teka Obsa Feyisa
- Department of Biochemistry, School of Medicine, College of Health and Medical Sciences, Harmaya University, Harar, Ethiopia
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Szczykowska J, Hryszko T, Naumnik B. Cardiac troponins in chronic kidney disease patients with special emphasis on their importance in acute coronary syndrome. Adv Med Sci 2019; 64:131-136. [PMID: 30641274 DOI: 10.1016/j.advms.2018.08.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 06/04/2018] [Accepted: 08/31/2018] [Indexed: 11/27/2022]
Abstract
Troponin measurement is one of crucial assessments facilitating diagnosis of acute coronary syndrome. Patients with chronic kidney disease are decimated by cardiovascular disease. Unfortunately, elevated concentration of serum troponin is commonly faced in clinical practice creating a challenge to rule out acute cardiac ischaemia in this vulnerable population. This review presents current knowlegde on analytical differences in troponin T and I measurements, their prognostic significance and their application in diagnosing acute coronary syndrome in chronic kidney disease patients. It also points out poorly known aspects and suggests directions for future research.
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Affiliation(s)
- Joanna Szczykowska
- 1st Department of Nephrology and Transplantation with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland.
| | - Tomasz Hryszko
- 2nd Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland
| | - Beata Naumnik
- 1st Department of Nephrology and Transplantation with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland
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Cervellin G, Comelli I, Benatti M, Sanchis-Gomar F, Bassi A, Lippi G. Non-traumatic rhabdomyolysis: Background, laboratory features, and acute clinical management. Clin Biochem 2017; 50:656-662. [PMID: 28235546 DOI: 10.1016/j.clinbiochem.2017.02.016] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/20/2017] [Accepted: 02/20/2017] [Indexed: 12/11/2022]
Abstract
Rhabdomyolysis is a relatively rare condition, but its clinical consequences are frequently dramatic in terms of both morbidity and mortality. Although no consensus has been reached so far about the precise definition of this condition, the term rhabdomyolysis describes a rapid breakdown of striated, or skeletal, muscle. It is hence characterized by the rupture and necrosis of muscle fibers, resulting in release of cell degradation products and intracellular elements within the bloodstream and extracellular space. Notably, the percentage of patients with rhabdomyolysis who develop acute kidney injury, the most dramatic consequence, varies from 13% to over 50% according to both the cause and the clinical and organizational setting where they are diagnosed. Despite direct muscle injury (i.e., traumatic rhabdomyolysis) remains the most common cause, additional causes, frequently overlapping, include hypoxic, physical, chemical or biological factors. The conventional triad of symptoms includes muscle pain, weakness and dark urine. The laboratory diagnosis is essentially based on the measurement of biomarkers of muscle injury, being creatine kinase (CK) the biochemical "gold standard" for diagnosis, and myoglobin the "gold standard" for prognostication, especially in patients with non-traumatic rhabdomyolysis. The essential clinical management in the emergency department is based on a targeted intervention to manage the underlying cause, combined with infusion of fluids and eventually sodium bicarbonate. We will present and discuss in this article the pathophysiological and clinical features of non-traumatic rhabdomyolysis, focusing specifically on Emergency Department (ED) management.
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Affiliation(s)
| | - Ivan Comelli
- Emergency Department, Academic Hospital of Parma, Parma, Italy
| | - Mario Benatti
- Emergency Department, Academic Hospital of Parma, Parma, Italy
| | - Fabian Sanchis-Gomar
- NYU Langone Medical Center, Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, USA; Department of Physiology, Faculty of Medicine, University of Valencia and Fundación Investigación Hospital Clínico Universitario de Valencia, Instituto de Investigación INCLIVA, Valencia, Spain
| | - Antonella Bassi
- Laboratory of Clinical Chemistry and Hematology, University Hospital of Verona, Verona, Italy
| | - Giuseppe Lippi
- Section of Clinical Chemistry, University of Verona, Verona, Italy
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