Hemodialysis causes a rapid drop in blood eosinophils and neutrophils, likely due to pulmonary sequestration. Eosinophil counts then significantly increase by the end of the procedure.
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Hemodialysis is a vital treatment for end-stage renal disease.
The effects of hemodialysis on leukocyte counts, particularly eosinophils, are not fully understood.
Purpose of the Study:
To investigate the dynamic changes in blood eosinophil and neutrophil counts during hemodialysis.
To explore potential mechanisms underlying these hematological alterations.
Main Methods:
Blood samples were collected from 21 hemodialysis patients at baseline, 15 minutes, and 5 hours into dialysis.
Eosinophil and neutrophil counts were determined using the counting-chamber method.
Serum IgE concentrations were measured pre- and post-dialysis.
Main Results:
A significant decrease in eosinophil counts was observed within the first 15 minutes of hemodialysis (mean drop of 37.5%).
Eosinophil counts dramatically increased by the end of the 5-hour dialysis (mean rise of 521%).
Neutrophil counts followed a similar pattern, decreasing early and returning to baseline by 5 hours. Predialysis IgE levels were below normal and remained unchanged.
Conclusions:
Early hemodialysis-induced neutropenia and eosinopenia may result from pulmonary sequestration.
The significant late eosinophilia suggests the release of eosinophilotactic substances triggered by the dialysis procedure.