Tissue electrical properties in head and neck tumors before and after surgery: Preliminary observations.
Indian J Cancer
;
2014 Jul-Sep; 51(3): 209-213
Artigo
em Inglês
| IMSEAR
| ID: sea-154346
ABSTRACT
Context Bioelectrical impedance analysis (BIA) detects changes in tissue electrical properties and has been seen as a prognostic tool in several chronic conditions, including cancer. AIMS:
The study was conducted to investigate whether there are any tissue electrical differences in patients with head and neck cancer (H and NC) before and after surgery treatment. Settings andDesign:
The observational study was performed at the Otolaryngology Department, Head and Neck Oncology. Materials andMethods:
Tissue electrical properties were assessed in 31 patients with H and NC before and 2 weeks after surgery treatment. Direct bioimpedance measures [resistance, reactance, phase angle (PA)] were determined by BIA. Statistical Analysis Used The Shapiro-Wilk test was used to assess the distribution conformity of examined parameters with a normal distribution; the Fisher (F) test was used to assess variance homogeneity. For group comparisons of metric data we used the Mann-Whitney U test. P value < 0.05 was considered as statistically significant. The statistical analysis for this study was performed using the computer software STATISTICA v. 8.0 (StatSoft).Results:
PA at 50 kHz was found to be significantly (P = 0.000009) lower after surgery in patients with H and NC than before treatment (4.69° ±0.71 vs. 4.22 ± 0.83, respectively). Resistance was significantly (P = 0.0005) greater after surgery in patients with H and NC than before (596.24 ± 96.31 ohm vs 647.64 ± 276.11 ohm, respectively).Conclusions:
There are tissue electrical differences before and after surgery in patients diagnosed with H and NC. Further observations would be useful to feedback in support therapy planning of individual patients.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Tecidos
/
Idoso
/
Humanos
/
Masculino
/
Impedância Elétrica
/
Adulto
/
Neoplasias de Cabeça e Pescoço
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Idioma:
Inglês
Revista:
Indian J Cancer
Ano de publicação:
2014
Tipo de documento:
Artigo
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