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Implications of Albumin Leakage for Survival in Maintenance Hemodialysis Patients: A 7‐year Observational Study

Albumin leakage during hemodialysis (HD) presents a clinical dilemma. However, protein‐binding uremic toxins are suggested to be responsible for increased mortality. No one has investigated the relationship between albumin leakage and mortality. Therefore, the purpose of this observational study was to analyze the association of albumin leakage with mortality in 690 HD patients who survived one year after enrollment. They were divided to three groups who received HD with large (3 g or more per HD session), middle (1 to 3 g) or small (less than 1 g) amount of albumin leakage, respectively. A propensity score analysis minimizing indication bias was performed. Consequently, in a 7‐year observation period, 212 patients died. Albumin leakage 3 g or more per HD session provided better prognosis than albumin leakage less than 3 g per HD session. In conclusion, clinically acceptable large albumin leakage provides beneficial effects on mortality in maintenance HD patients.