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Annals of Surgical Oncology

, Volume 22, Supplement 3, pp 370–375 | Cite as

A Prospective Validation Study of Bioimpedance with Volume Displacement in Early-Stage Breast Cancer Patients at Risk for Lymphedema

  • Andrea V. BarrioEmail author
  • Anne Eaton
  • Thomas G. Frazier
Breast Oncology

Abstract

Background

Although volume displacement (VD) is considered the gold standard for diagnosing breast cancer-related lymphedema, it is inconvenient. We compared bioimpedance (L-Dex) and VD measurements in a prospective cohort of breast cancer patients at risk for lymphedema.

Methods

Between 2010 and 2014, a total of 223 breast cancer patients were enrolled. Following exclusions (n = 37), 186 received baseline VD and L-Dex; follow-up measurements were performed at 3–6 months intervals for 3 years. At each visit, patients fitted into one of three categories: normal (normal VD and L-Dex); abnormal L-Dex (L-Dex > 10 or increase in 10 from baseline and normal VD); or lymphedema (relative arm volume difference of >10 % by VD ± abnormal L-Dex). Change in L-Dex was plotted against change in VD; correlation was assessed using the Pearson correlation.

Results

At a median follow-up of 18.2 months, 152 patients were normal, 25 had an abnormal L-Dex, and 9 developed lymphedema without a prior L-Dex abnormality. Of the 25 abnormal L-Dex patients, 4 progressed to lymphedema, for a total of 13 patients with lymphedema. Evaluating all time points, 186 patients had 829 follow-up measurements. Sensitivity and specificity of L-Dex compared with VD were 75 and 93 %, respectively. There was no correlation between change in VD and change in L-Dex at 3 months (r = 0.31) or 6 months (r = 0.21).

Conclusions

VD and bioimpedance demonstrated poor correlation with inconsistent overlap of measurements considered abnormal. Of patients with an abnormal L-Dex, few progressed to lymphedema; most patients with lymphedema did not have a prior L-Dex abnormality. Further studies are needed to understand the clinical significance of bioimpedance.

Keywords

Positive Predictive Value Sentinel Lymph Node Biopsy Negative Predictive Value Lymphedema Axillary Lymph Node Dissection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors thank Dr. Kimberly J. Van Zee and Dr. Hiram S. Cody III for their critical review of this manuscript.

Disclosure

This study was a podium presentation at the Society of Surgical Oncology 2015 Annual Cancer Symposium, and was supported by a grant from The Sharpe–Strumia Research Foundation at The Bryn Mawr Hospital, and in part by a National Institutes of Health/National Cancer Institute Cancer Center Support Grant (No. P30 CA008748).

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Copyright information

© Society of Surgical Oncology 2015

Authors and Affiliations

  • Andrea V. Barrio
    • 1
    • 3
    Email author
  • Anne Eaton
    • 2
  • Thomas G. Frazier
    • 3
  1. 1.Breast Service, Department of SurgeryMemorial Sloan Kettering Cancer CenterNew YorkUSA
  2. 2.Department of Epidemiology and BiostatisticsMemorial Sloan Kettering Cancer CenterNew YorkUSA
  3. 3.Department of SurgeryThe Bryn Mawr HospitalBryn MawrUSA

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