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Updated: Apr 3, 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
AHEAD score--Long-term risk classification in acute heart failure
Jindrich Spinar1, Jiri Jarkovsky2, Lenka Spinarova3
1Department of Cardiology, University Hospital Brno, Brno, Czech Republic; Medical Faculty, Masaryk University, Brno, Czech Republic; Department of Cardiovascular Disease, International Clinical Research Center, University Hospital St Anne's, Brno, Czech Republic.
The AHEAD score, utilizing comorbidities like atrial fibrillation and diabetes, effectively predicts mortality risk in acute heart failure patients. This simple tool aids in assessing both short-term and long-term prognosis for hospitalized individuals.
Area of Science:
- Cardiology
- Clinical Medicine
- Biostatistics
Background:
- Comorbidities significantly impact prognosis in patients hospitalized for acute heart failure (AHF).
- The AHEAD (Atrial fibrillation, Haemoglobin, Elderly, Abnormal renal parameters, Diabetes mellitus) scoring system was developed to assess these impacts.
- Understanding the role of comorbidities is crucial for managing AHF patients.
Purpose of the Study:
- To evaluate the prognostic value of the AHEAD scoring system in patients hospitalized for AHF.
- To establish a simple tool for estimating short-term and long-term mortality risk.
- To validate the AHEAD score using an independent international cohort.
Main Methods:
- The AHEAD score was derived from a multicentre prospective Czech registry of 5846 AHF patients.
- Each of the five risk factors (atrial fibrillation, anemia, elderly status, abnormal renal parameters, diabetes mellitus) contributed one point to the score.
- External validation was performed using the international GREAT registry, comprising 6315 AHF patients.
Main Results:
- The study analyzed 5846 patients from the AHEAD registry and 6315 from the GREAT registry.
- Key comorbidities included atrial fibrillation (30.7%), anemia (38.2%), abnormal renal parameters (30.1%), and diabetes mellitus (44.0%).
- Increasing AHEAD scores correlated significantly with higher one-year (13.6% to 58.2%) and 90-month (35.1% to 91.7%) all-cause mortality rates (p<0.001).
Conclusions:
- The AHEAD scoring system is a simple and effective tool for assessing prognosis in AHF patients.
- It accurately estimates both short-term and long-term mortality risk based on comorbidities.
- The AHEAD score aids clinicians in risk stratification and management planning for hospitalized AHF patients.
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