Is prolonged antibiotic prophylaxis after major surgery associated with an increased risk of nosocomial bloodstream infection?

Abstract
We read with great interest the study by Namias and associates, 1 Namias N. Harvill S. Ball S. et al. Cost and morbidity associated with antibiotic prophylaxis in the ICU. J Am Coll Surg. 1999; 188 : 225-230 Abstract Full Text Full Text PDF PubMed Scopus (53) Google Scholar suggesting that the common practice of extending antibiotic prophylaxis (ABP) after major surgery is associated with a significantly increased risk of nosocomial bloodstream infection (BSI). The authors observed 6 cases of BSI among 180 patients receiving short ABP, compared with 16 BSI cases in 94 patients with extended ABP (crude odds ratio 5.9, 95% confidence interval [CI 95] 2.1 to 17.8, p < 0.001).

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