Relationship between segmental and whole-body phase angle in peritoneal dialysis patients.

Abstract:

:The relation between the right-side (RS) electrical impedance phase angle (PA) and segmental PA in five configurations at 50 kHz was analyzed in 23 peritoneal dialysis male patients before complete drainage of the abdominal cavity. The impedance vector (Z/H) components were standardized by the height H of the subjects (R/H and Xc/H). BIVA software was used to analyze the individual RS vector. The Pearson correlation was used to analyze the correlation between RS and segmental configurations. Student's t test and Hotelling's T2 test were used to analyze the separation of groups obtained by BIVA. The highest significant Pearson correlation was between RS and right leg total (RLEGT) in a longitudinal direction (r=0.925, P<0.001). We obtained a significant difference (P<0.05) in R/H, Xc/H (for RS and RLEGT) using Hotelling's T2 test, and in PA using Student's t test. The transverse measurement in the leg (RTRLEG) showed the lowest correlation (r=0.261). In conclusion, we can obtain similar information through the phase angle, whether RS is measured or if we measure on RLEGT. The phase angle of the transverse measurements provides different information from the phase angle of the longitudinal measurements.

journal_name

Physiol Meas

authors

Nescolarde L,Rosell-Ferrer J,Doñate T

doi

10.1088/0967-3334/29/9/N01

subject

Has Abstract

pub_date

2008-09-01 00:00:00

pages

N49-57

issue

9

eissn

0967-3334

issn

1361-6579

pii

S0967-3334(08)81393-X

journal_volume

29

pub_type

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