Altered tissue electrical properties in women with breast cancer – Preliminary observations.

Teresa Małecka-Massalska 1, Krzysztof Chara 1, Paweł Gołębiowski 1, Magdalena Władysiuk 2, Agata Smolen 3, Andrzej Kurylcio 4, Beata Zuchora 4, Jarosław Zubrzycki 5, Grażyna Orłowska-Kowalik 6, Krystyna Lupa-Zatwarnicka 1, Wojciech Polkowski 4
1 - Department of Physiology, Medical University, Lublin, Poland
2 - HTA Consulting Kraków, Poland
3 - Department of Mathematics and Biostatistics, Medical University, Lublin, Poland
4 - Department of Surgical Oncology, Medical University, Lublin, Poland
5 - Institute of Technological Systems of Information, University of Technology, Lublin, Poland
6 - Department of Nephrology, Medical University, Lublin, Poland
Ann Agric Environ Med
2013; 20 (3):
ICID: 1067433
Article type: Original article
Introduction and objectives: In the United States, breast cancer (BC) is the most common non-skin cancer. In Poland, it is estimated that the number of new breast cancer cases affects about 13,500 women each year. There are many methods for nutritional status assessment. One of them is bioimpedance analysis (BIA). Direct bioimpedance measures (resistance, reactance, phase angle (PA)) determined by bioelectrical impedance analysis (BIA) detectf changes in tissue electrical properties. The study was conducted to investigate whether there are any tissue electrical differences in patients with breast cancer.
Materials and methods: The direct bioimpedance measures determined by bioelectrical impedance analysis (BIA) were performed on 34 patients with BC and 34 healthy volunteers. The measurements were made with ImpediMed bioimpedance analysis SFB7 BioImp v1.55 (Pinkenba Qld 4008, Australia).
Results: Reactance and resistance at 50 kHz was found to be significantly greater in patients with BC than in the control group (53.59° ± 1.53 vs. 47.26° ± 1.25, respectively, p=0.0031; 603.24° ± 15.38 ohm vs. 515.87° ± 11.48 ohm, respectively, p=0.00004).
Conclusion: Pre-surgical patients diagnosed with BC have altered tissue electrical properties. Further observations of a larger patient group would be valuable to calculate survival, validate the prognostic significance of PA, and monitor nutritional and therapeutic interventions in this patient population.
PMID 24069858 - click here to show this article in PubMed

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