Abstract

Postoperative complications have been associated with low pre-operative endotoxin core antibody (EndoCAb) status. Seventy-three patients scheduled to undergo elective cardiac surgery were screened for IgG EndoCAb levels 1 week prior to admission. Of these 73 patients, 39 had levels below the median of a healthy population (100 MU = median units/ml). Only 6 received an infusion of IgG EndoCAb hyperimmune fresh frozen plasma (FFP) due to surgical rescheduling or unavailability of compatible hyperimmune FFP. The 6 patients demonstrated significant elevation (p < 0.0001) of their IgG EndoCAb levels from a mean level of 43 MU/ml (range: 26-75) to a posttransfusion mean of 267 MU/ml (range: 227-300), which persisted until at least immediately prior to the operative period. We conclude that passive immunisation with EndoCAb hyperimmune FFP is possible prior to elective surgery and that the kinetic profile of such an administration will allow the FFP to be given the night prior to surgery and still maintain significantly elevated levels for surgery planned the following morning.

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