ArticleHeart and vessels2025
Prognostic value of combining cardiac myosin-binding protein C and N-terminal pro-B-type natriuretic peptide in patients without acute coronary syndrome treated at medical cardiac intensive care units.
Article in Heart and vessels, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We investigated the prognostic value of cardiac myosin-binding protein C (cMyC), a novel cardiospecific marker, both independently and in combination with N-terminal pro-B-type natriuretic peptide (NT-proBNP), for predicting 6-month all-cause mortality in patients without acute coronary syndrome (ACS) treated at medical (nonsurgical) cardiac intensive care units (CICUs). Admission levels of cMyC, high-sensitivity cardiac troponin T (hs-cTnT), and NT-proBNP were measured in 1032 consecutive patients (mean age; 70 years) without ACS hospitalized acutely in medical CICUs for the treatment of cardiovascular disease. Serum cMyC was closely correlated with hs-cTnT and moderately with NT-proBNP (r = 0.92 and r = 0.49, respectively, p < 0.0001). During the 6-month follow-up period after admission, there were 109 (10.6%) all-cause deaths, including 72 cardiovascular deaths. Both cMyC and NT-proBNP were independent predictors of 6-month all-cause mortality (all p < 0.05). Combining cMyC and NT-proBNP with a baseline model of established risk factors improved patient classification and discrimination beyond any single biomarker (all p < 0.05) or the baseline model alone (both p < 0.0001). Moreover, patients were divided into nine groups using cMyC and NT-proBNP tertiles, and the adjusted hazard ratio (95% confidence interval) for 6-month all-cause mortality in patients with both biomarkers in the highest vs. lowest tertile was 9.67 (2.65-35.2). When cMyC was replaced with hs-cTnT, similar results were observed for hs-cTnT. In addition, the C-indices for addition of cMyC or hs-cTnT to the baseline model were similar (0.798 vs. 0.800, p = 0.94). In conclusion, similar to hs-cTnT, cMyC at admission may be a potent, independent predictor of 6-month all-cause mortality in patients without ACS treated at medical CICUs, and their prognostic abilities may be comparable. Combining cMyC or hs-cTnT with NT-proBNP may substantially improve early risk stratification of this population.
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