Journal of Capital Medical University ›› 2018, Vol. 39 ›› Issue (5): 747-751.doi: 10.3969/j.issn.1006-7795.2018.05.023

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Effects of bioelectrical impedance test frequency on quantitative assessment of breast cancer associated lymphedema

Xu Quan1, Liu Yujie2, Pan Yu1, Zheng Xiuyuan2, Liu Jingmin2, Sun Xiaohua1, Zou Lili1, Ma Lina1, Yan Hongsong1   

  1. 1. Department of Physical Medicine and Rehabilitation, Beijing Tsinghua Changgeng Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China;
    2. Department of Sports, Tsinghua University, Beijing 100084, China
  • Received:2018-05-25 Online:2018-09-21 Published:2018-10-20
  • Supported by:
    This study was supported by National Natural Science Foundation of China (31671190, 31771285,31871147), Scientific Research Project of Yanjing Medical College, Capital Medical University (18qdky06).

Abstract: Objective To detect the bioelectrical impedance at different frequencies of lateral upper limbs in patients with breast cancer associated lymphedema, analyzed the influence of bioelectrical impedance test frequency on quantitative evaluation of lymphedema,which provided the basis for the quantitative evaluation of bioelectrical impedance technology in clinical application in breast cancer associated lymphedema.Methods A total of 30 patients with breast cancer associated lymphedema were randomly selected, and the multifrequency bioelectrical impedance analyzer was used to detect the biological resistance values of upper extremity with different frequencies. The difference of mean circumference and bioelectrical impedance between the upper limb of the healthy side and the affected side were compared and the correlation between the mean circumference difference of the upper limbs and the impedance difference at different frequencies was analyzed.Results There was a significant difference of the circumferential diameter and the impedance under different frequency between the healthy side and the affected side (P<0.05);A significant positive correlation was found between the average circumferential diameter and the impedance difference under 50 kHz of the affected side and the healthy side of the upper limb (r=0.453,P=0.023).The percentage of affected limb impedance under 50 kHz increased significantly higher than the percentage of limb circumference increased (P<0.01).Low frequency bioelectrical impedance can be used for sensitive and quantitative evaluation of breast cancer associated lymphedema, which is consistent with traditional circumference measurement. Conclusion It indicates that low frequency bioelectrical impedance has important application value in quantitative assessment of lymphedema.

Key words: bioelectrical impedance technique, breast cancer associated lymphedema, frequency, circumferential diameter

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