, Volume 16, Issue 3, pp 448-455

The impact of ferritin fluctuations on stable hemoglobin levels in hemodialysis patients

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Hemoglobin (Hb) cycling in patients with renal anemia might be associated with a higher mortality rate. We investigated the association of factors relating serum ferritin and dose of erythropoiesis-stimulating agents (ESAs) with Hb levels.


We measured Hb and ferritin levels every month in 266 hemodialysis (HD) patients for 12 months.


The standard deviation (SD) and residual SD (RSD) (liner regression of Hb or ferritin SD values) values of Hb were significantly correlated with ferritin SD or RSD values, respectively. The percentage achievement of target Hb in the target-ferritin group was significantly higher than in the high-amplitude fluctuation ferritin group. Ferritin SD and RSD values in patients with oral or no iron supplementation were significantly lower than those who received intravenous iron.


Iron storage varies over a relatively wide range in HD patients, and this variation is closely associated with Hb cycling. The stability of iron storage and ESA dosage is important for maintaining stable Hb levels.