Using Higher Cut-off Values to Diagnose Acute Myocardial Infarction in Patients With Elevated Hs-cTnT Concentrations
Study Details
Study Description
Brief Summary
High-sensitive cardiac troponin T (hs-cTnT) is a cornerstone for diagnosing acute myocardial infarction (AMI). However, it is often challenging to diagnose AMI in patients with elevated hs-cTnT before a rise or fall of hs-cTnT can be observed. The elevations of hs-cTnT are caused not only by AMI, but also by other cardiac or even non-cardiac diseases. Thresholds above the 99th percentile have been proposed to improve the specificity and to accelerate the rule in of myocardial infarction. This study aimed to find a more accurate cut-off value to rule in AMI in patients with elevated hs-cTnT.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
Acute myocardial infarction (AMI) is a major cause of morbidity and mortality worldwide. In real clinical practice, early and accurate recognition of AMI is crucial to accelerate effective reperfusion therapy. High-sensitivity cardiac troponin T (hs-cTnT) is an important protein that regulates cardiomyocytes excitability, which can be proliferated in cardiomyocytes and released into the blood after myocardial injury or infarction. According to the fourth universal definition of AMI, a rise and/or fall of cTn values with at least one value above the 99th percentile URL is the essential precondition for diagnosing AMI. However, it is challenging for clinicians to diagnose AMI in patients with elevated hs-cTnT levels before a rise and/or fall of hs-cTnT values can be observed, particularly for those who present atypical symptoms and non-significant changes in electrocardiograms (ECG). When the 99th percentile upper reference limit (URL) is referred, it happens frequently that the elevations of hs-cTnT are not caused by AMI, but by other cardiac or even non-cardiac diseases. Therefore, thresholds above the 99th percentile have been proposed to improve the specificity and to accelerate the rule in of myocardial infarction.
This study aimed to find a higher and more accurate cut-off value of hs-cTnT to rule in AMI in a large volume of patients with elevated hs-cTnT.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Elevated hs-cTnT group
|
Other: No Intervention
No Intervention
|
Outcome Measures
Primary Outcome Measures
- Number of patients diagnosed with acute myocardial infarction [Within 3 days of experiencing chest pain, electrocardiogram changes, or abnormal hs-cTnT values.]
Eligibility Criteria
Criteria
Inclusion Criteria:
- Patients hospitalized from January 1,2015 to May 31,2023 in the First Affiliated Hospital of Nanjing Medical University with hs-cTnT concentrations over 14.0 ng/L were enrolled.
Exclusion Criteria:
- Patients who underwent major cardiac surgeries during the hospitalization.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | The First Affiliated Hospital of Nanjing Medical University | Nanjing | Jiangsu | China | 210029 |
Sponsors and Collaborators
- The First Affiliated Hospital with Nanjing Medical University
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
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