期刊
NEPHROLOGY DIALYSIS TRANSPLANTATION
卷 24, 期 9, 页码 2792-2796出版社
OXFORD UNIV PRESS
DOI: 10.1093/ndt/gfp191
关键词
fibroblast growth factor-23; long haemodialysis; phosphataemia; survival
资金
- Korea government (MOST) [R13-2002-054-04001-0]
- Ministry for Health, Welfare & Family Affairs, Republic of Korea [A084001]
- National Research Foundation of Korea [R13-2002-054-04001-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Methods. All patients treated in one haemodialysis centre from September 2006 were included in the study. Standard laboratory values, medical history, cardiovascular events and risk factors, medication and FGF-23 levels [ELISA (C-Term) Immutopics] were recorded. Patients received haemodialysis three times a week, on a 5- to 8-h schedule. Patient data were analysed according to FGF-23 quartiles. The effect of FGF-23 on the 2-year survival rate was assessed using the Cox proportional hazard model, adjusted for confounding variables and according to the serum phosphate tertiles. Results. The study included 219 patients. Serum FGF-23 levels were high: 7060 +/- 13 500 RU/mL (median, 2740 RU/mL). In logistical regressions, only calcaemia (P = 0.002), phosphataemia (P = 0.008) and warfarin use (P = 0.04) were associated with the highest FGF-23 quartile. In the subgroup of patients with an estimated VC score, the third and fourth quartiles of the FGF-23 levels were associated with more severe VC. In multivariate linear regressions, only phosphataemia remained significantly correlated with FGF-23 (P = 0.04). The 2-year mortality rate was significantly higher for haemodialysis patients with serum FGF-23 levels in the higher quartile [P = 0.007; hazard ratio, 2.5 (1.3-5)] than in the first quartile, whereas within the phosphataemia tertiles, the lowest serum FGF-23 quartile was associated with lowered mortality. Conclusion. This study demonstrated a high level of circulating FGF-23 in LHD patients, despite infrequent hyperphosphataemia. However, phosphataemia is still the main factor correlating with serum FGF-23. The association of higher serum FGF-23 levels with mortality and VC, regardless of the serum phosphate levels, has thus been confirmed.
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