False-Positive Causes in Serum Cardiac Troponin Levels

作者：Aleksey Michailovich Chaulin · 发表于：Journal of Clinical Medicine Research · 年份：2022 · DOI：10.14740/jocmr4664 · 被引用次数：50 · 研究领域：Acute Myocardial Infarction Research、Cardiac Imaging and Diagnostics、Cardiac Structural Anomalies and Repair

Cardiac troponins (cTns) are the most valuable and specific markers of cardiovascular diseases, including acute myocardial infarction. These biomarkers can also be used to assess the degree of myocardial damage in non-cardiac diseases that can negatively affect the cells of cardiac muscle tissue. However, in everyday clinical practice, doctors often encounter with false-positive cases of increased cTns. False-positive cases of increased cTns can contribute to incorrect diagnosis and subsequent inadequate treatment, which causes significant harm to the patient. This review discusses some common causes of a false-positive increase in the level of cTns in the blood serum. Such causes are fibrin clots, heterophilic antibodies, alkaline phosphatase, rheumatoid factor, and cross-reactions of diagnostic (anti-cTn) antibodies with skeletal troponins. Detailed attention is focused on the mechanisms of false-positive increase, and ways to identify and combat these false-positive causes of increased cTns. This has an important practical significance in modern clinical practice.