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Updated: May 23, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
Biomarker changes during acute heart failure treatment
Brent Boyer1, Kimberly W Hart, Matthew I Sperling
1Medical University of South Carolina, Charleston, SC, USA.
Biomarker levels for mid-regional-pro-atrial natriuretic peptide (MR-proANP), mid-regional-pro-adrenomedullin (MR-proADM), and C-terminal-pro-endothelin-1 (CT-pro-ET-1) change within 24 hours of acute decompensated heart failure therapy. These changes may offer objective evidence of treatment efficacy.
Area of Science:
- Cardiology
- Biomarker Research
- Acute Heart Failure Management
Background:
- Acute decompensated heart failure (ADHF) requires objective measures of treatment efficacy.
- Biomarkers can potentially indicate treatment response and facilitate early hospital discharge.
Purpose of the Study:
- To investigate changes in specific biomarkers during the initial 24 hours of ADHF therapy.
- To assess the dynamic changes of MR-proANP, MR-proADM, and CT-pro-ET-1 in ADHF patients.
Main Methods:
- Prospective study of 48 ADHF patients meeting modified Framingham criteria.
- Collection of clinical data and serum/plasma biomarker levels at baseline, 2-4 hours, and 12-24 hours.
- Statistical analysis of biomarker concentration changes using Fisher exact and Kruskal-Wallis tests.
Main Results:
- Mid-regional-pro-atrial natriuretic peptide (MR-proANP) showed changes in 36% of patients within 2-4 hours.
- By 12-24 hours, similar proportions of patients exhibited changes in MR-proANP (47%), MR-proADM (41%), and CT-pro-ET-1 (49%).
- All three biomarkers demonstrated measurable changes within 24 hours of ADHF treatment initiation.
Conclusions:
- Patients with ADHF experience measurable changes in MR-proANP, MR-proADM, and CT-pro-ET-1 within 24 hours of therapy.
- Further research is warranted to explore the association of these biomarker changes with clinical course and outcomes.
- These biomarkers may play a role in risk-stratification for ADHF patients.
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