日本透析医学会雑誌に論文が掲載されました
本院院長の菅沼、技士長の正木ら3名の技士によって作成された、
この雑誌は、一般社団法人 日本透析医学会が発行している雑誌です。日本透析医学会は約5,
和文〈要旨〉
【目的】本院では代謝性アシドーシス補正効果の高いクエン酸含有無酢酸透析液を用いているが,一部の患者でアシドーシス補正が十分でない.そこで,血清重炭酸濃度上昇作用を有するリン吸着薬クエン酸第二鉄製剤(FC)の影響を後ろ向きに調査した.
【対象と方法】本院通院外来維持透析患者で既存薬からFCに変更または追加した72名を対象に,FC投与開始前,投与3か月後のCKD‒MBD,貧血指標と週中日の透析前血清重炭酸濃度を比較した.
【結果】透析前重炭酸濃度は,全例ではFC投与後変化はなかったが,22mEq/L未満の患者30例では有意に上昇した.FC投与に伴いFC 由来の鉄が吸収され,TSAT20%未満かつ血清フェリチン値100ng/mL 未満の絶対的鉄欠乏の患者が著減し,ESA投与量が有意に減少した.
【結語】FCはリン吸着および鉄補充に伴う貧血改善作用に加え代謝性アシドーシス補正作用を有し,特に異所性石灰化等のリスクとなる代謝性アシドーシス患者において有用なリン吸着薬になり得る.
〈Abstract〉
【Aim】Hemodialysis(HD)using citrate‒containing acetate‒free dialysate had a strong ameliorating effect on metabolic acidosis in our clinic, but metabolic acidosis was not sufficiently improved in some HD patients. Ferric citrate(FC)is an iron‒containing phosphate binder, and was reported to increase serum bicarbonate concentrations. The acidosis‒ameliorating effect of FC was retrospectively investigated.
【Patients and Methods】Chronic kidney disease‒mineral and bone disorder parameters, the anemia‒related index, and the pre‒dialysis serum bicarbonate concentration were compared in 72 outpatient maintenance HD patients who were changed from existing phosphate binders to FC or had FC added to their existing phosphate binders.
【Results】The data obtained before and 3 months after the initiation of FC treatment were compared. Although the mean pre‒dialysis bicarbonate concentration was not affected by the administration of FC in all patients, it increased significantly in 30 patients with pre‒dialysis bicarbonate concentrations of <22 mEq/L. The absorption of FC‒derived iron led to the number of patients with absolute iron deficiency(defined as a transferrin saturation value of <20% and a serum ferritin level of <100 ng/mL)markedly decreasing, and the mean erythropoiesis‒stimulating agent dose decreased significantly.
【Conclusion】FC is a phosphate binder, which ameliorates renal anemia and metabolic acidosis. It is particularly useful for HD patients with metabolic acidosis, who are at risk of ectopic calcification.