Abstract:
BACKGROUND:N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a potential biomarker for monitoring the status of heart failure. However, the optimal monitoring interval of NT-proBNP is unknown. This study sought to investigate the minimal informative monitoring interval of NT-proBNP in patients with stable chronic heart failure. METHODS:This retrospective cohort study included patients who were admitted due to heart failure and subsequently followed with serial NT-proBNP measurements in a tertiary hospital. We analyzed NT-proBNP measured between six months after discharge and the earliest timepoint of: an alteration of medication regimen, readmission due to worsening of heart failure, or all-cause death. To distinguish progression of the disease from biological variability and measurement error, the signal-to-noise ratio method was applied with a random-effects model. RESULTS:In the 368 patients included, NT-proBNP was measured for a median 6 times. In the random-effects model, signal (progression of disease) exceeded noise (biological variability and measurement error) at 7.9 months (95% confidence interval [CI]: 5.1-9.6), while noise corresponded to a 61% increase from baseline. In stratified analysis using the AHEAD risk score, the minimal informative monitoring interval shortened as the risk score increased (0-1 point: 12.2 months [95%CI: 10.3-14.4]; 2-3 points: 8.0 months [95%CI: 6.8-9.7]; 4-5 points: 3.3 months [95%CI: 3.0-3.8]). CONCLUSIONS:In patients with stable chronic heart failure, the minimal informative monitoring interval of NT-proBNP measurement was 7.9 months in the current population, which varied with underlying risks. The optimal monitoring interval could be lengthened for patients at lower risks.
journal_name
BMC Cardiovasc Disordjournal_title
BMC cardiovascular disordersauthors
Dai Z,Asano T,Takahashi O,Komiyama N,Ohde Sdoi
10.1186/s12872-020-01537-7subject
Has Abstractpub_date
2020-06-01 00:00:00pages
262issue
1issn
1471-2261pii
10.1186/s12872-020-01537-7journal_volume
20pub_type
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