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Cited by 297

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Ninety-Minute Exclusion of Acute Myocardial Infarction By Use of Quantitative Point-of-Care Testing of Myoglobin and Troponin I

McCord, James, Nowak, Richard M., McCullough, Peter A., Foreback, Craig, Borzak, Steven, Tokarski, Glenn, Tomlanovich, Michael C., Jacobsen, Gordon, Weaver, W. Douglas·2001·Circulation

Abstract

Background Diagnostic strategies with ECG and serum cardiac markers have been used to rule out acute myocardial infarction in 6 to 12 hours. The present study evaluated whether a multimarker strategy that used point-of-care measurement of myoglobin, creatine kinase (CK)-MB, and troponin I could exclude acute myocardial infarction in ≤3 hours. Methods and Results We prospectively enrolled consecutive patients (n=817) in the emergency department who were evaluated for possible acute myocardial infarction. In patients with nondiagnostic ECGs, we measured CK-MB, troponin I, and myoglobin with a point-of-care device at presentation and at 90 minutes, 3 hours, and 9 hours. Standard central laboratory testing of CK-MB was done at the same time intervals, and triage decisions were made by emergency physicians who were unaware of point-of-care results. Sensitivity and negative predictive value were compared for both the multimarker, point-of-care approach and the central laboratory strategy. Sensitivity and negative predictive value for point-of-care combination of myoglobin and troponin I by 90 minutes was 96.9% and 99.6%, respectively. CK-MB measurements and blood sampling at 3 hours did not improve sensitivity or negative predictive value. Median time from sampling to reporting of results was 71.0 minutes for the central laboratory versus 24.0 minutes for the point-of-care device ( P <0.001). Conclusions Acute myocardial infarction can be excluded rapidly in the emergency department by use of point-of-care measurements of myoglobin and troponin I during the first 90 minutes after presentation.

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Metadata

Authors
McCord, J., Nowak, R. M., McCullough, P. A., Foreback, C., Borzak, S., Tokarski, G., Tomlanovich, M. C., Jacobsen, G., & Weaver, W. D.
Venue
Circulation
Published
2001-09-25
Volume
104
Issue
13
Pages
1483-1488
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2008644554
Cited by
297
References
16
FWCI
11.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Ninety-Minute Exclusion of Acute Myocardial Infarction By Use of Quantitative Point-of-Care Testing of Myoglobin and Troponin I. https://app.cochat.ai/papers/10.1161/hc3801.096336
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McCord, J., Nowak, R. M., McCullough, P. A., Foreback, C., Borzak, S., Tokarski, G., Tomlanovich, M. C., Jacobsen, G., & Weaver, W. D. (2001). Ninety-Minute Exclusion of Acute Myocardial Infarction By Use of Quantitative Point-of-Care Testing of Myoglobin and Troponin I. Circulation. https://doi.org/10.1161/hc3801.096336

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