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- W2775467780 abstract "Background: Current guidelines recommend serial troponin measurements using a 3-hour or 1-hour algorithm to rule-out acute myocardial infarction (AMI). In this study we evaluate the diagnostic performance of a single high-sensitivity troponin I (hs-TnI) measurement combined with a non-ischaemic ECG directly at admission to exclude AMI. Methods: We measured baseline hs-TnI in 1,216 patients with suspected AMI. Patients with ST-elevation AMI were exlcuded from further analyses (n=60). Different hs-TnI cutoff concentrations were evaluated and combined with the information of a non-ischaemic ECG. We calculated the negative predictive value (NPV) to exclude AMI. All patients were followed for up to 2 years. The results were validated in 2 independent cohorts of patients with suspected AMI in 3,566 patients. Results: The mean age of our study population was 64 years, the median follow-up time was 525 days. 216 patients were diagnosed with non-ST-elevation AMI. Application of a baseline hs-TnI cutoff concentration of 3 ng/L resulted in a NPV of 99.4%. After additional application of a non-ischaemic ECG, the NPV increased to 100%. This translated into immediate rule-out of 21% of all patients. The mortality rate in this rule-out population was 0% after 12 months. 2 independent cohorts validated the high NPV of this approach (NPV 100% and 99.8%). Conclusion: Application of a baseline hs-TnI cutoff concentration of 3 ng/L combined with a non-ischaemic ECG excluded AMI safely without need for serial troponin testing." @default.
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- W2775467780 date "2016-11-11" @default.
- W2775467780 modified "2023-10-02" @default.
- W2775467780 title "Abstract 16833: Immediate Rule-out of Acute Myocardial Infarction Using Electrocardiogram and Baseline High-sensitivity Troponin I" @default.
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