Detectable troponin below the 99th percentile predicts survival in patients undergoing coronary angiography

Autor: Lars Michel, Stefanie Jehn, Iryna Dykun, Markus S. Anker, Peter Ferdinandy, Dobromir Dobrev, Tienush Rassaf, Amir A. Mahabadi, Matthias Totzeck
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: International Journal of Cardiology: Heart & Vasculature, Vol 52, Iss , Pp 101419- (2024)
Druh dokumentu: article
ISSN: 2352-9067
DOI: 10.1016/j.ijcha.2024.101419
Popis: Background: Cardiac troponin I (cTnI) above the 99th percentile is associated with an increased risk of major adverse events. Patients with detectable cTnI below the 99th percentile are a heterogeneous group with a less well-defined risk profile. The purpose of this study is to investigate the prognostic relevance of detectable cTnI below the 99th percentile in patients undergoing coronary angiography. Methods: The study included 14,776 consecutive patients (mean age of 65.4 ± 12.7 years, 71.3 % male) from the Essen Coronary Artery Disease (ECAD) registry. Patients with cTnI levels above the 99th percentile and patients with ST-segment elevation acute myocardial infarction were excluded. All-cause mortality was defined as the primary endpoint. Results: Detectable cTnI below the 99th percentile was present in 2811 (19.0 %) patients, while 11,965 (81.0 %) patients were below detection limit of the employed assay. The mean follow-up was 4.25 ± 3.76 years. All-cause mortality was 20.8 % for patients with detectable cTnI below the 99th percentile and 15.0 % for those without detectable cTnI. In a multivariable Cox regression analysis, detectable cTnI was independently associated with all-cause mortality with a hazard ratio of 1.60 (95 % CI 1.45–1.76; p
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