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学科主题: 临床医学
题名:
Comparison of bioimpedance methods for estimating total body water and intracellular water changes during hemodialysis
作者: Dou, Yanna1,2,3; Liu, Li1,2,3; Cheng, Xuyang1,2,3; Cao, Liyun1,2,3; Zuo, Li1,2,3
关键词: bioimpedance method ; body fluid volume ; comparison
刊名: NEPHROLOGY DIALYSIS TRANSPLANTATION
发表日期: 2011-10-01
DOI: 10.1093/ndt/gfq854
卷: 26, 期:10, 页:3319-3324
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Transplantation ; Urology & Nephrology
研究领域[WOS]: Transplantation ; Urology & Nephrology
关键词[WOS]: BIOELECTRICAL-IMPEDANCE ANALYSIS ; FLUID ; SPECTROSCOPY ; VOLUMES ; VALIDATION ; ADIPOSITY ; MASS
英文摘要:

Background. The accurate assessment of body fluid volume is important in many clinical situations. Hannan et al. proposed a single-frequency bioimpedance equation (HE) to calculate extracellular water (ECW) and total body water (TBW). There are two equations based on the bioimpedance spectroscopy (BIS) method for the evaluation of body fluid volume: Xitron equations (XE) and body composition spectroscopy equations (BCSE). The aim of the study was to compare the accuracy of these three equations in body fluid volume point estimation in maintenance hemodialysis (MHD) patients.

Methods. The BIS method was performed in MHD patients before and after a hemodialysis (HD) session. TBW, ECW and intracellular water (ICW) were calculated by XE, BCSE and HE, respectively. Hydration status (HS) was calculated using inputs of XE, BCSE and HE. ICW before dialysis was compared to ICW after dialysis. The change of TBW and HS using different equations was compared to actual ultrafiltration volume (AUV) that was calculated as weight difference of pre- to postdialysis.

Results. Fifty MHD patients (27 females) were included in the study. Significant changes in ICW were observed using the XE and HE method with ultrafiltration (XE: 15.51 +/- 5.07 versus 16.17 +/- 5.34 L, P < 0.01; HE: 17.40 +/- 5.13 versus 16.55 +/- 4.71 L, P < 0.01). However, no significant ICW change was observed using BCSE (17.47 +/- 4.35 versus 17.54 +/- 4.36 L, P > 0.05). (sic)TBW_XE and (sic)TBW_HE were significantly different from AUV (XE 1.76 +/- 0.89 versus 2.46 +/- 0.89 L, P < 0.01; HE 4.16 +/- 1.36 versus 2.46 +/- 0.89 L, P < 0.01); however, (sic)TBW_BCSE was much closer to AUV (2.27 +/- 0.90 versus 2.46 +/- 0.89 L, P = 0.129). The change of HS using inputs of BCSE was also closer to AUV (2.41 +/- 0.86 versus 2.46 +/- 0.89 L, P = 1.0).

Conclusion. Our study indicated that BCSE provided a better point estimation of ICW and TBW.

语种: 英语
所属项目编号: D09050704310902
项目资助者: Beijing Municipal Science &amp ; Technology Commission
WOS记录号: WOS:000296349200043
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/50689
Appears in Collections:北京大学第一临床医学院_肾脏内科_期刊论文

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作者单位: 1.Peking Univ, Inst Nephrol, Beijing 100871, Peoples R China
2.Minist Hlth China, Key Lab Renal Dis, Beijing, Peoples R China
3.Peking Univ, Hosp 1, Dept Med, Div Renal, Beijing 100871, Peoples R China

Recommended Citation:
Dou, Yanna,Liu, Li,Cheng, Xuyang,et al. Comparison of bioimpedance methods for estimating total body water and intracellular water changes during hemodialysis[J]. NEPHROLOGY DIALYSIS TRANSPLANTATION,2011,26(10):3319-3324.
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