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Association between phase angle and coronary artery calcium score in patients on peritoneal dialysis

Fabricio Moreira Reis1, Maryanne Zilli Canedo da Silva1, Nayrana Soares do Carmo Reis1

  • 1Department of Internal Medicine, Botucatu Medical School-UNESP, São Paulo State University, Botucatu, Brazil.

Frontiers in Nutrition
|August 22, 2022
PubMed

Insights

Phase angle (PhA) is linked to coronary artery calcium (CAC) scores in peritoneal dialysis (PD) patients. This finding suggests PhA may serve as a valuable nutritional and cardiovascular risk marker in PD populations.

Area of Science:

  • Nephrology
  • Cardiology
  • Nutritional Science

Background:

  • Phase angle (PhA) is a recognized nutritional marker and mortality predictor in peritoneal dialysis (PD) patients.
  • Coronary artery calcium (CAC) score predicts cardiovascular events and mortality in PD patients.
  • The relationship between PhA and CAC score in PD patients remains unclear.

Purpose of the Study:

  • To investigate the association between phase angle (PhA) and coronary artery calcium (CAC) score in patients undergoing peritoneal dialysis (PD).

Main Methods:

  • A cross-sectional study involving 44 PD patients at a University Hospital (March 2018 - August 2019).
  • Phase angle (PhA) assessed using unifrequency bioimpedance (BIA).
  • Coronary artery calcium (CAC) score determined by cardiovascular computed tomography (positive if ≥100 Agatston).

Main Results:

  • A significant association was found between the coronary artery calcium (CAC) score and phase angle (PhA) in the studied PD patient cohort.
  • The study included 44 patients with a mean age of 56 years and a median dialysis duration of 11.7 months.

Conclusions:

  • Phase angle (PhA) is associated with a positive coronary artery calcium (CAC) score in peritoneal dialysis (PD) patients.
  • PhA may function as a risk marker for coronary artery disease in this patient group, complementing other established risk factors.
Abstract

Keywords:
bioelectrical impedancecoronary artery calcium scorenutritionperitoneal dialysisphase angle

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