Document Detail

Development and characterization of a rapid assay for bedside determinations of cardiac troponin T.
MedLine Citation:
PMID:  7586254     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The appearance of cardiac proteins in blood is the most specific and sensitive indicator of acute myocardial cell necrosis. The measurement of cardiac markers, however, is time consuming and requires sophisticated equipment. To facilitate the biochemical detection for acute myocardial cell necrosis, a whole-blood rapid assay device for cardiac troponin T detection was developed that provides a test result within 20 minutes. METHODS AND RESULTS: Monoclonal antibody M7 is labeled with gold particles, and antibody 1B10 is labeled with biotin. Both antibodies, as well as buffer substances and detergents, are adsorbed onto paper fleeces mounted below an application well. Heparinized blood (160 microL) applied to this well solubilizes the dry chemistry reagents. Blood cells are separated from plasma via a glass-fiber fleece. The immunocomplexes formed are concentrated within the reading zone by binding of the biotin-labeled antibody with streptavidine immobilized to the test device. Troponin T bound to the test device serves as a control. The detection limit of this assay is 0.18 microgram/L with a cross-reactivity with skeletal troponin T of 0.5%. In clinical analyses involving 25 healthy volunteers, 62 patients with chest pain but without myocardial ischemia, 35 patients with acute myocardial infarction, 24 patients with minor myocardial cell damage due to radiofrequency ablation, and 35 patients with unstable angina, the rapid assay was comparable to the troponin T enzyme immunoassay in regard to sensitivity and specificity. CONCLUSIONS: This newly developed assay allows accurate, rapid, and convenient diagnosis of acute myocardial cell necrosis.
M Müller-Bardorff; H Freitag; T Scheffold; A Remppis; W Kübler; H A Katus
Related Documents :
25100504 - Cardiovascular mri predicts 5-year adverse clinical outcome in heart transplant recipie...
24237794 - Pseudoaneurysm originating from left ventricle aneurysm: an autopsy case and review of ...
21211684 - Association of mortality with years of education in patients with st-segment elevation ...
21127744 - Spontaneous dissection of right coronary artery manifested with acute myocardial infarc...
10981454 - Plasma fibrinogen and coronary heart disease in urban japanese.
7949674 - Anticoagulation and hemostasis in cardiac surgical patients.
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Circulation     Volume:  92     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1995 Nov 
Date Detail:
Created Date:  1995-12-21     Completed Date:  1995-12-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2869-75     Citation Subset:  AIM; IM    
Medizinische Universitätsklinik, Heidelberg, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Angina, Unstable / blood,  diagnosis
Biological Markers / blood
Case-Control Studies
Enzyme-Linked Immunosorbent Assay
Immunoassay / methods
Myocardial Infarction / blood,  diagnosis*
Sensitivity and Specificity
Time Factors
Troponin / blood*
Troponin T
Wolff-Parkinson-White Syndrome / blood,  diagnosis
Reg. No./Substance:
0/Biological Markers; 0/Troponin; 0/Troponin T
Comment In:
Circulation. 1996 Nov 1;94(9):2313-4   [PMID:  8901698 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Comparison of myocardial contrast echocardiography and low-dose dobutamine stress echocardiography i...
Next Document:  Phenotypic patterns of mononuclear cells in dilated cardiomyopathy.