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The Annals of Thoracic Surgery, Vol 43, 544-549, Copyright © 1987 by The Society of Thoracic Surgeons
W van Oeveren, J Dankert, W Wildevuur and CR Wildevuur
The effect of two prophylactic antibiotic regimens during cardiopulmonary
bypass (CPB) was investigated in dogs. Airborne contamination was
determined by spraying two different bacterial strains (Staphylococcus
aureus and Serratia marcescens) into the air of the operating room. Dogs
were operated on and underwent CPB with a bubble oxygenator. Pericardial
suction, either conventional (blood-air) or selective (only blood), was
used. Particularly in the first situation, an impaired humoral host defense
is induced. In dogs given the regimen consisting of penicillin G
(benzylpenicillin), gentamicin sulfate, and flucloxacillin, the number of
contaminated sites for both bacteria was reduced (p less than .01) compared
with those given cefuroxime. The effectiveness of the combined antibiotic
regimen could be ascribed to increased serum bactericidal activity and
polymorphonuclear leukocyte (PMN) killing capacity. Cefuroxime enhanced the
PMN respiratory burst. As a result, two weeks postoperatively the rate of
infection was small in both groups. We conclude that prior to CPB,
antibiotics should be administered prophylactically to overcome a period of
impaired humoral host defense during CPB.
ARTICLES
Prophylactic antibiotic treatment prevents infection after cardiopulmonary bypass: a study in dogs
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