Tissue electrical properties in head and neck tumors before and after surgery: Preliminary observations

• DOI: 10.4103/0019-509x.146717
• Publication Date: 2014-12-10T13:59:30Z
• Authors: T Malecka-Massalska; A Smolen; K Morshed
• Keywords: Bioelectrical Impedance Analysis

<b>Context:</b> Bioelectrical impedance analysis (BIA) detects changes in tissue electrical properties and has been seen as a prognostic tool several chronic conditions, including cancer. AIMS: The study was conducted to investigate whether there are any differences patients with head neck cancer (H NC) before after surgery treatment. <b>Settings Design:</b> observational performed at the Otolaryngology Department, Head Neck Oncology. <b>Materials Methods</b> : Tissue were assessed 31 H NC 2 weeks Direct bioimpedance measures [resistance, reactance, phase angle (PA)] determined by BIA. <b>Statistical Analysis Used:</b> Shapiro-Wilk test used assess distribution conformity of examined parameters normal distribution; Fisher (F) variance homogeneity. For group comparisons metric data we Mann-Whitney U test. <i>P</i> value < 0.05 considered statistically significant. statistical for this using computer software STATISTICA v. 8.0 (StatSoft). <b>Results:</b> PA 50 kHz found be significantly (<i>P</i> = 0.000009) lower than treatment (4.69° ±0.71 vs. 4.22 ± 0.83, respectively). Resistance 0.0005) greater (596.24 96.31 ohm vs 647.64 276.11 ohm, <b>Conclusions:</b> There diagnosed NC. Further observations would useful feedback support therapy planning individual patients.