• Evangelo Frigas, Miguel A Park, Bradly J Narr, Gerald W Volcheck, David R Danielson, Patricia J Markus, Kristin E Kloos Olson, Darrell R Schroeder, and Hirohito Kita.
• Division of Allergic Diseases, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. frigas.evangelo@mayo.edu
• Mayo Clin. Proc. 2008 Jun 1;83(6):651-62.

ObjectiveTo study whether allergy consultation and penicillin allergy skin testing affects the selection of antibacterial prophylaxis perioperatively in surgical patients with history of allergy to penicillin (HOAP).Patients And MethodsFrom January 1 through June 30, 2004, we compared 2 different models of practice at our institution. At the Preoperative Evaluation Clinic (POEC), all patients with HOAP are evaluated by an allergist and undergo skin testing for allergy to penicillin. At other (non-POEC) preoperative evaluation settings (OPES), patients with HOAP do not undergo allergy consultation and penicillin skin testing before surgery. Of the 4889 patients screened at the POEC during the study period, 412 consecutive patients with HOAP were included in the study. Of the 416 patients screened at OPES, 69 consecutive patients with HOAP were studied. Logistic regression was used to assess whether allergy consultation was associated with the choice of antibiotic for antibacterial prophylaxis perioperatively, after adjusting for age, sex, and type of surgery.ResultsPerioperative cephalosporin use was greater among patients screened at POEC vs those screened at OPES (70% vs 39%, P<.001 unadjusted; P=.04 adjusted for age, sex, and type of surgery). Vancomycin use was lower for patients screened at POEC vs those screened at OPES (10% vs 28%, P<.001 unadjusted; P=.03 adjusted).ConclusionFor patients with HOAP, evaluation at the POEC was associated with increased use of cephalosporin and decreased use of vancomycin.

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