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논문분류	춘계학술대회 초록집
제목	Alterations of Bioelectrical Impedance Analysis-derived Variables in the Early Period of Kidney Transplantation
저자	JIHYUN YEOM
출판정보	2024; 2024(1):
키워드
초록	Objectives: Bioelectrical impedance analysis (BIA) is a simple, non-invasive, and practical method of measuring body composition. PhA, among several bioelectrical parameters, has demonstrated its role as a diagnostic and predictive factor in various diseases. In particular, studies have reported that low PhA predicts malnutrition and mortality in kidney transplant recipients. We aimed to look at changes in BIA parameters within two weeks after kidney transplantation (KT), which is the early period when there are many metabolic and nutritional changes. Methods: This study was a retrospective observational study conducted by extracting medical records. It included 24 patients who underwent KT at Jeonbuk National University Hospital (JBUH) from May 2021 to September 2023. Body compositions were assessed by the InBody 970 (InBody Co., Ltd., Seoul, Korea). Results: Table 1A displays the baseline characteristics and clinical outcomes. The average age of the KT recipients was 53.33±10.93. During the median follow-up period, the patient's survival rate was 100%, and only one patient experienced graft failure due to acute rejection. We compared BIA variables for two weeks after KT (Table 1B). Weight and BMI measured by BIA two weeks after surgery significantly decreased compared to before surgery as renal function recovered. The ECW ratio, measured one week after KT, exhibited a significant increase compared to the pre-surgery values, believed to be associated with substantial hydration. No significant change in the mean value of raw PhA at the beginning of surgery could be confirmed. However, the histogram of standardized PhA adjusted by age and BMI (Figure 1) confirmed that more positive SPhA values were seen two weeks after surgery. Conclusions: BIA can help assess volume status early after kidney transplant surgery. Additionally, SPhA was confirmed to have a more positive value than the baseline two weeks after surgery.
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