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. 1992 Jul;36(7):1424–1426. doi: 10.1128/aac.36.7.1424

Removal of vancomycin by high-flux hemodialysis membranes.

J M Quale 1, J J O'Halloran 1, N DeVincenzo 1, R H Barth 1
PMCID: PMC191597  PMID: 1510437

Abstract

Levels of vancomycin in serum are traditionally believed to be unaffected by hemodialysis. By both in vivo and in vitro techniques, the effects of a newer, more permeable dialyzer membrane on vancomycin concentrations were investigated. Six patients who were receiving vancomycin and undergoing maintenance hemodialysis with polyacrylonitrile dialyzer membranes had postdialysis levels in serum that were 63% of predialysis levels; the intradialytic half-life was 5.7 h. Vancomycin concentrations in serum exiting the dialyzer were 68% of those simultaneously entering the dialyzer at the beginning of dialysis. When polyacrylonitrile and conventional cellulose membranes were perfused in vitro with a recirculating solution of vancomycin, vancomycin concentrations fell to 39 and 91%, respectively, of the original concentration. The vancomycin concentration in the ultrafiltrate collected from the polyacrylonitrile membranes was only 23% of the original perfusate concentration. A significant decrease in the serum vancomycin concentration may occur during hemodialysis with newer high-flux dialyzer membranes. It appears that vancomycin binds to polyacrylonitrile membranes; this binding does not require the presence of protein and is affected by the pH of the perfusate.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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