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  • Change in N-terminal pro-B-type natriuretic peptide at 1 year predicts mortality in wild-type transthyretin amyloid cardiomyopathy

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Heart failure and cardiomyopathies
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Change in N-terminal pro-B-type natriuretic peptide at 1 year predicts mortality in wild-type transthyretin amyloid cardiomyopathy
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  • Published on: 24 February 2022
    RE: Change in N-terminal pro-B-type natriuretic peptide at 1 year predicts mortality in wild-type transthyretin amyloid cardiomyopathy

    I read with great interest the report of Law et al [1]. The authors examined one-year mortality risk in 432 patients with wild-type transthyretin amyloid cardiomyopathy (wtATTR-CM) to detect useful biomarkers. The adjusted hazard ratio (HR) (95% confidence interval [CI]) of the change in N-terminal pro-B-type natriuretic peptide concentration (∆ NT-proBNP) per 500 ng/L increase for mortality was 1.04 (1.01 to 1.07). In addition, the adjusted HRs (95% CIs) of the increases in ∆ NT-proBNP of >500 ng/L, >1000 ng/L and >2000 ng/L for mortality were 1.65 (1.18-2.31), 1.92 (1.37-2.70), and 2.87 (1.93-4.27), respectively. They concluded that the change in NT-proBNP concentration during the first year was an independent predictor of mortality in patients with wtATTR-CM. I have a comment about this study.

    Ochi et al. examined two-year mortality risk in 47 patients with wtATTR-CM [2], and low serum albumin (≤3.75 g/dL), elevated high-sensitivity cardiac troponin T (hs-cTnT; >0.086 ng/mL), and low left ventricular ejection fraction (LVEF; <50%) are significantly associated with mortality in patients with wtATTR-CM. According to the total number of these 3 risk factors, patients were stratified into 4 subgroups: low risk (no risk factors), intermediate-low risk (1 risk factor), intermediate-high risk (2 risk factors), and high risk (3 risk factors). The estimated two-year survival rate of patients classified as low risk, intermediate-low risk, intermediate-high r...

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    Conflict of Interest:
    None declared.