Association of Lower Serum Bilirubin With Loss of Residual Kidney Function in Peritoneal Dialysis Patients

Hiroaki Tsujikawa, Shigeru Tanaka, Masatoshi Hara, Yasuhiro Kawai, Yuta Matsukuma, Kumiko Torisu, Toshiaki Nakano, Kazuhiko Tsuruya, Takanari Kitazono

研究成果: ジャーナルへの寄稿記事

抜粋

Bilirubin is recognized as an endogenous antioxidant, and low serum bilirubin is reported to be associated with the progression of kidney disease. However, it is unclear whether serum bilirubin levels are associated with the loss of residual kidney function (RKF) in peritoneal dialysis (PD) patients. This study investigated the relationship between serum total bilirubin and loss of RKF. We prospectively followed 94 PD patients who started PD in our hospital between June 2006 and May 2016. Ten patients who had chronic liver disease or cirrhosis were excluded. Patients were divided into three groups based on serum total bilirubin concentration tertiles: tertile 1 (T1) < 0.3, T2 = 0.3, and T3 ≥ 0.4 mg/dL. We estimated the relationship between serum bilirubin and loss of RKF, defined as daily urine volume (<100 mL) within 3 years after starting PD, using a Cox proportional hazards model. During the 3-year observation period, 22 patients lost RKF. The incidence rate of loss of RKF increased linearly with the decrease in serum total bilirubin levels (P for trend < 0.05). After adjusting for confounding factors, low serum total bilirubin level was shown to be an independent predictor of loss of RKF (hazard ratio [HR] for every 0.1 mg/dL decrease, 1.50; 95% confidence interval [CI], 1.01–2.51; HR [95%CI] for T2 and T1 [vs. T3] 2.03 [0.65–7.88] and 3.70 [1.00–15.9]). This study suggests that low serum total bilirubin levels are associated with the loss of RKF in PD patients.

元の言語英語
ページ(範囲)202-207
ページ数6
ジャーナルTherapeutic Apheresis and Dialysis
24
発行部数2
DOI
出版物ステータス出版済み - 4 1 2020

All Science Journal Classification (ASJC) codes

  • Hematology
  • Nephrology

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