臨牀透析 Vol.17 No.4(5)


特集名 適正透析 -- kinetic modeling の最近の動向
題名 血液透析における urea kinetic modeling
発刊年月 2001年 04月
著者 石崎 允 永仁会永仁会病院腎センター
【 要旨 】 Kt/Vは正確な透析量を表さないとともに,生命予後予測因子としての信頼性も低い.日本透析医学会の統計によれば,その予測因子として,血清クレアチニン値やクレアチニン産生量が生命予後を大きく左右し,その予測指標として信頼性が高いとしている.このことは筋肉量すなわち栄養状態の良し悪しを表現しており,protein energy malnutrition(PEM)の抑制が生命予後を改善することを意味している.同じ透析条件での長期にわたる維持透析は溶質除去量が低下し,栄養障害が生ずる.透析処方の変更が必要な時点は何時かを溶質除去動態から検討し,運動療法を併用した,よく食べられる透析を処方することがQOLの高い透析ライフをもたらすと考える.
Theme Adequate Dialysis : Current Topics in Kinetic Modeling
Title Urea kinetic modeling in hemodialysis
Author Makoto Ishizaki Kidney Center, Eijinkai Hospital
[ Summary ] Not only does Kt/V not represent an accurate level of dialysis dosage, but it is not reliable as a predictor of mortality either. According to the statistics demonstated by the Japanese Society for Dialysis Therapy, serum creatinine and creatinine generation rates greatly affect mortality, and are highly reliable as its predictive indices. This information represents muscle mass, in other words, nutritional status, and demonstrates that restraint of protein energy malnutrition (PEM) improves the prognosis for hemodialysis patients. Long term dialysis treatment with the dialysis prescription using the same membrane results in malnutrition followed by decreased solute removal. Based upon the decrease in dialysis dosage, dialysis prescriptions should be changed, that is to say, other biocompartible high-flux membranes. and endotoxin-free dialysate ought to be applied. This procedure which improves nutritional status is believed to provide a high quality of life for patients.
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