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lüll Cardiovascular biomarkers in acute Kawasaki disease Sato YZ; Molkara DP; Daniels LB; Tremoulet AH; Shimizu C; Kanegaye JT; Best BM; Snider JV; Frazer JR; Maisel A; Burns JCInt J Cardiol 2013[Mar]; 164 (1): 58-63BACKGROUND: Endomycocardial biopsies have demonstrated that subclinical myocarditis is a universal feature of acute Kawasaki disease (KD). METHODS: We investigated biochemical evidence of myocardial strain, oxidative stress, and cardiomyocyte injury in 55 acute KD subjects (30 with paired convalescent samples), 54 febrile control (FC), and 50 healthy control (HC) children by measuring concentrations of cardiovascular biomarkers. RESULTS: Levels of N-terminal pro-B-type natriuretic peptide (NT-proBNP) and soluble ST2 (sST2) were elevated in acute vs. convalescent KD, FC, and HC (p=0.002), while gamma-glutamyl transferase and alanine amino transferase as measures of oxidative stress were increased in acute vs. FC (p=0.0002). Cardiac troponin I (cTnI) levels, using a highly sensitive assay, were elevated in 30% and 40% of paired acute and convalescent KD subjects, respectively, and normalized within two years of disease onset. NT-proBNP and sST2 negatively correlated with deceleration time, but only NT-proBNP correlated with MV E:A ratio and internal diameter of the coronary arteries (RCA/LAD Zworst). CONCLUSIONS: NT-proBNP and sST2 were elevated in acute KD subjects and correlated with impaired myocardial relaxation. These findings, combined with elevated levels of cTnI, suggest that both cardiomyocyte stress and cell death are associated with myocardial inflammation in acute KD.|Acute Disease[MESH]|Adolescent[MESH]|Biomarkers/blood[MESH]|Child[MESH]|Child, Preschool[MESH]|Female[MESH]|Humans[MESH]|Infant[MESH]|Male[MESH]|Mucocutaneous Lymph Node Syndrome/*blood/complications[MESH]|Myocarditis/blood/etiology[MESH]|Natriuretic Peptide, Brain/blood[MESH]|Peptide Fragments/blood[MESH]|Troponin I/blood[MESH] |