Anaphylaxis: an unusual complication of hemodialysis.

Anaphylaxis is a rare complication of hemodialysis. Unless there is a high index of suspicion, symptoms may not be immediately recognized as a manifestation of hypersensitivity and prompt attention may be delayed. To improve physician awareness of this problem we report a patient who developed a severe anaphylactic reaction within minutes of beginning dialysis. Review of the literature indicates that hypersensitivity reactions are most commonly associated with Cuprophan dialyzers. Although the etiology has not been established, recurrence can be prevented by selection of a different type of dialysis membrane.