High-sensitivity cardiac troponins: circadian rhythms
Open Access
- 19 February 2021
- journal article
- Published by Silicea - Poligraf, LLC in Cardiovascular Therapy and Prevention
- Vol. 20 (1), 2639
- https://doi.org/10.15829/1728-8800-2021-2639
Abstract
High-sensitivity cardiac troponins (hs-cTnI and hs-cTnT) contribute to a progression in the diagnosis and treatment of cardiovascular diseases: acceleration of diagnosis of acute myocardial infarction (early diagnostic algorithms: 0-1 h, 0-3 h), and earlier initiation of optimal treatment, expansion of diagnostic and prognostic potential (earlier detection of myocardial damage during chemotherapy, endocarditis, myocarditis and other diseases). However, increased sensitivity slightly reduced the specificity and created the need for a more thorough interpretation of elevated levels of hs-cTnI and hs-cTnT in a number of pathologies that damage cardiomyocytes. In addition, there was a need to introduce reference levels of hs-cTnI and hs-cTnT (99 percentile), taking into account sex. Recently, there has also been information about circadian (diurnal) variations in hs-cTnT and hs-cTnI levels. We analyze in detail the results of clinical studies that found circadian changes in hs-cTnI and hs-cTnT. Possible mechanisms underlying these changes in hs-cTnT and hs-cTnI concentrations are discussed.Keywords
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