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논문분류	춘계학술대회 초록집
제목	Association of Vascular Access Flow and Volume Status on Fistula Arm by Bio-impedance Analysis in Hemodialysis
저자	Eun Jung Ko* 1, Younhee Lee1, Hyung Jong Kim1
출판정보	2016; 2016(1):
키워드	bioimpedance, Hemodialysis, Vascular access, arteriovenous fistula, arteriovenous graft, patency, elderly
초록	Background: Multi-frequency bioimpedance is a tool of body composition measure and can monitor changes in extracelluar volume during dialysis. Arterio-venous fistula(aVF) could potentially affect fluid retention in the arm. We investigated whether multi-frequency bio-impedance could detect AVF stenosis or associaten of AVF with fluid retention in the AVF arm. Methods: We measured the extracelluar water(ECW) and total body water(TBW) in AVF arm following hemodialysis by multi-freqeuncy bio-impedance (Inbody S10®) using an eight-electrode contact technique. We measured AVF or AVG flow by transonic ultrasonography using an ultrasound dilution technology (HD 03®) in hemodialysis. Results: Total 73 patients (male 39 patients) were enrolled and the mean age of 58.20 ± 13.74 years. ECF/TBW ratio of fistula arm was a significantly higher than ECW/TBW ratio of non-fistula arm (0.387 ± 0.01 vs 0.379 ± 0.01; p<0.05). ECW/TBW ratio of fistula arm was a significantly negative correlation with access flow lwvel (mL/min) on fistula (p<0.05). The 5kHz reactance of fistula arm was a significantly positive correlation with access flow level (mL/min) in fistula (p<0.05). Conclusion: Absolute and also relative extracelluar fluid volumes are increased in the fistula arm of hemodialysis. We thought that extracelluar fluid volumes in the fistula arm were associated with access flow level (mL/min) and/or relative fistula stenosis. We suffest that multi-frequency bio-impedance can be a useful assistant tool of vascular access flow measure.
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