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Updated: Mar 8, 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
Elevation in systolic blood pressure during heart failure hospitalization is associated with increased short and
Omer Segal1, Gad Segal, Avshalom Leibowitz
1Sackler Faculty of Medicine, Tel Aviv University, Tel-Aviv Internal Medicine "T", Chaim Sheba Medical Center, Tel Hashomer Leviev Heart Center, Sheba Medical Center, Tel HaShomer, Ramat Gan, Israel Heart Research Follow-Up Program, University of Rochester Medical Center, Rochester, NY Internal Medicine D and Hypertension Unit, The Chaim Sheba Medical Center, Tel-Hashomer Cardiac Rehabilitation Institute, Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.
Abstract:
The relationship between systolic blood pressure (SBP) change during hospitalization of patients with heart failure (HF) and clinical outcomes has never been thoroughly investigated.A total of 3393 patients hospitalized with HF, from 25 hospitals in Israel, were enrolled. The SBP change was calculated by subtracting the discharge SBP values from the admission values and then divided into quartiles of SBP change. We compared the group with upper quartile SBP change to the lower 3 quartiles of change. Both groups had largely similar demographics and clinical characteristics. All-cause mortality rate was 24% at 1-year and 82.6% at 10-years, whereas patients in the upper SBP change group had significantly higher cumulative mortality probability at 1-year (30% vs 22%; log-rank P <0.001), and at 10-years (86% vs 82%; log-rank P <0.001). Multivariate Cox proportional hazard analysis adjusted for comorbidities demonstrated that patients in the upper SBP change quartile have an independent 17% higher mortality risk at 10-years [hazard ratio (HR) 1.17; 95% confidence interval (CI) 1.08-1.28]. Subgroup analysis demonstrated that mortality risk was more pronounced in patients with preserved ejection fraction and in the subgroup with admission SBP ≥140 mm Hg.SBP change is significantly associated with 1- and 10-year all-cause mortality, as an increased SBP change is associated with worse prognosis. We believe that this readily available marker might facilitate risk stratification of patients and possibly improve care.
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Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Hypertension I: Introduction
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