Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Whole body--single frequency bioimpedance.

Antonio Piccoli1

  • 1Department of Medical and Surgical Sciences, Nephrology Clinic, University of Padova, Padova, Italy.

Contributions to Nephrology
|May 7, 2005
PubMed
Summary

Impedance vector analysis monitors tissue hydration in hemodialysis patients, offering a weight-independent method to optimize fluid status and restore normal electrical conductivity without complex equations.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Type-4 Phosphodiesterase (PDE4) Blockade Reduces NETosis in Cystic Fibrosis.

Frontiers in pharmacology·2021
Same author

Osteocalcin (bone GLA protein) levels, vascular calcifications, vertebral fractures and mortality in hemodialysis patients with diabetes mellitus.

Journal of nephrology·2019
Same author

Pulmonary Vein Flow Impedance: An Early Predictor of Cardiac Dysfunction in Intrauterine Growth Restriction.

Fetal diagnosis and therapy·2018
Same author

Total Body Water Dynamics Estimated with Bioelectrical Impedance Vector Analysis and B-Type Natriuretic Peptide After Exposure to Hypobaric Hypoxia: A Field Study.

High altitude medicine & biology·2017
Same author

Cigarette Smoking is Associated with Decreased Bone Gla-protein (BGP) Levels in Hemodialysis Patients.

Current vascular pharmacology·2017
Same author

Mechanisms of endothelial cell dysfunction in cystic fibrosis.

Biochimica et biophysica acta. Molecular basis of disease·2017

Area of Science:

  • Nephrology
  • Biomedical Engineering
  • Physiology

Background:

  • Postdialysis target weight is typically set at the lowest tolerable weight without intradialytic symptoms.
  • Tissue electrical properties offer direct fluid status monitoring, bypassing traditional body weight measurements.

Purpose of the Study:

  • To evaluate impedance vector analysis (IVA) for monitoring hemodialysis patient hydration.
  • To establish IVA as a weight-independent method for optimizing fluid management.

Main Methods:

  • Whole body impedance measured using skin electrodes on hand and foot.
  • Impedance (Z vector) analyzed for resistance (R) and reactance (Xc) at 50 kHz.
  • Impedance vector patterns assessed for tissue hydration status.

Main Results:

  • Cyclical tissue hydration changes in hemodialysis patients correlate with whole body impedance variations.
  • IVA effectively monitors hydration status, guiding optimal hydration prescription independent of body weight.
  • Impedance vector analysis aims to normalize abnormal vectors within a reference ellipse, restoring tissue electrical conductivity.

Conclusions:

  • Impedance vector patterns allow for identification and ranking of normal versus abnormal tissue hydration.
  • This method provides a way to assess hydration without relying on traditional equations.

Related Experiment Videos