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Related Experiment Video

Updated: Feb 11, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
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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

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Phase angle and mortality: a systematic review.

Luíza M Garlini1, Fernanda D Alves2, Luciane B Ceretta3

  • 1Post-Graduate Program in Cardiovascular Sciences, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.

European Journal of Clinical Nutrition
|April 27, 2018
PubMed
Summary
This summary is machine-generated.

Bioelectrical impedance phase angle is a potential prognostic marker. This systematic review found that phase angle correlates with mortality across diverse clinical settings, suggesting its utility in screening high-risk individuals.

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Area of Science:

  • Biomedical Engineering
  • Clinical Nutrition
  • Geriatrics

Background:

  • The prognostic value of phase angle, a measure derived from bioelectrical impedance, is debated across various health conditions.
  • Existing literature presents conflicting evidence regarding the correlation between phase angle and mortality.
  • A comprehensive evaluation is needed to clarify the relationship between phase angle and mortality in diverse clinical contexts.

Purpose of the Study:

  • To systematically review the existing literature.
  • To evaluate the relationship between phase angle and mortality.
  • To determine if phase angle serves as a reliable prognostic marker.

Main Methods:

  • Systematic literature search conducted across major electronic databases (PubMed, Embase, Cochrane, Lilacs, SciELO, Scopus).
  • Inclusion criteria focused on studies measuring phase angle and assessing mortality or survival outcomes.
  • Data extraction and review performed by multiple independent reviewers to ensure accuracy.

Main Results:

  • A total of 455 papers were initially identified, with 48 undergoing full assessment.
  • Out of the assessed studies, 42 demonstrated a significant correlation between phase angle and mortality.
  • The findings suggest a consistent association between lower phase angle values and increased mortality risk.

Conclusions:

  • Phase angle appears to be a valuable indicator of mortality across a wide range of clinical situations.
  • This parameter can potentially be utilized for screening individuals at higher risk of mortality.
  • Further research may explore the clinical application of phase angle in risk stratification and patient management.