Segmental impedance thresholds for early detection of unilateral upper limb swelling

Svensson, B. J., Dylke, E. S., Ward, L. C. and Kilbreath, S.L. (2014) Segmental impedance thresholds for early detection of unilateral upper limb swelling. Lymphatic Research and Biology, 13 4: 253-259. doi:10.1089/lrb.2013.0050.

Author Svensson, B. J.
Dylke, E. S.
Ward, L. C.
Kilbreath, S.L.
Title Segmental impedance thresholds for early detection of unilateral upper limb swelling
Journal name Lymphatic Research and Biology   Check publisher's open access policy
ISSN 1557-8585
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1089/lrb.2013.0050.
Open Access Status
Volume 13
Issue 4
Start page 253
End page 259
Total pages 7
Place of publication New Rochelle, NY, United States
Publisher Mary Ann Liebert
Collection year 2015
Language eng
Formatted abstract
Background: Detection of early lymphedema is important for effective treatment outcome and reduction of disease burden. The aims of this study were to determine normal inter-limb variance in the hand and four segments of the arm using bioimpedance spectroscopy (BIS) to provide diagnostic thresholds for detection of early lymphedema development, to determine the intra-rater reliability of these measurements, and to compare the inter-limb BIS ratios to differences based on arm circumference measures.

Methods and results: One hundred women, aged 49.1 (SD 13.8) years without history of breast cancer or lymphedema participated. Impedance measures for the hand and four 10 cm length arm segments were used to determine the inter-limb segment BIS ratios. Circumference difference and segment volumes were calculated from circumference measures obtained with a tape measure. A subgroup of women was measured on two occasions, one week apart. Thresholds were determined for the dominant and nondominant limb, based on two and three standard deviations (SD) above the mean. The 2SD and 3SD thresholds for the dominant arm ranged from 1.121 to 1.150 and 1.172 to 1.209, respectively, and for the nondominant limb ranged from 1.057 to 1.107 and 1.103 to 1.169, respectively. Intra-rater reliability was high (ICC: 0.945–0.983). BIS ratio and circumference-based measures did not identify the same segments as being over threshold.

Conclusions: BIS diagnostic thresholds for the hand and four segments of the arm, based on normative data, taking into consideration arm dominance have been developed. Segmental BIS has been shown to be highly reliable.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 16 May 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Chemistry and Molecular Biosciences
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Created: Thu, 22 May 2014, 10:39:58 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences