Penicillin allergies: referral and management practices of anesthesiologists

Increasing Cefazolin Use for Perioperative Antibiotic Prophylaxis in Penicillin-Allergic Children

BACKGROUND AND OBJECTIVES

Cefazolin, a first-generation cephalosporin, is the most commonly recommended antibiotic for perioperative prophylaxis to reduce surgical site infections. Children with a reported penicillin allergy often receive an alternative antibiotic because of a common misunderstanding of the cross-reactivity between these antibiotics. This use of alternative antibiotics in surgical populations have been associated with increased infections, antibiotic resistance, and health care costs. We aimed to increase the percentage of patients with nonsevere penicillin-class allergies who receive cefazolin for antibiotic prophylaxis.

METHODS

A multidisciplinary team conducted this quality improvement initiative, with a series of 3 plan-do-study-act cycles aimed at children with nonsevere penicillin-class allergies undergoing surgical procedures that require antibiotic prophylaxis. The primary outcome measure was the percentage of surgical encounters among patients with nonsevere penicillin-class allergies who received cefazolin as antibiotic prophylaxis. Statistical process control charts were used to measure improvement over time.

RESULTS

Approximately 400 children were involved in this project. There was special cause variation and a shift in the center line from 60% to 80% of eligible patients receiving cefazolin for antibiotic prophylaxis, which was sustained for the duration of the project. In the last month, 90% of eligible patient received cefazolin, surpassing our goal of 85%. This improvement has been sustained in the 5 months after project completion. We had no cases of severe allergic reactions in the operating room.

CONCLUSIONS

Our multidisciplinary education-focused interventions were associated with a significant increase in the use of cefazolin for perioperative antibiotic prophylaxis in patient with penicillin allergies.

Management of a surgical patient with a label of penicillin allergy: narrative review and consensus recommendations

Unsubstantiated penicillin-allergy labels are common in surgical patients, and can lead to significant harm through avoidance of best first-line prophylaxis of surgical site infections and increased infection with resistant bacterial strains. Up to 98% of penicillin-allergy labels are incorrect when tested. Because of the scarcity of trained allergists in all healthcare systems, only a minority of surgical patients have the opportunity to undergo testing and de-labelling before surgery. Testing pathways can be modified and shortened in selected patients. A variety of healthcare professionals can, with appropriate training and in collaboration with allergists, provide testing for selected patients. We review how patients might be assessed, the appropriate testing strategies that can be used, and the minimum standards of safe testing.

Allergy alerts - The incidence of parentally reported allergies in children presenting for general anesthesia

BACKGROUND AND AIM

Pediatric patients increasingly report allergies, including allergies to food and medications. We sought to determine the incidence and, nature of parent-reported allergies in children presenting for surgery and its significance for anesthetists.

METHODS

We prospectively collected data on admissions through our surgical admission unit over a 2-month period at a pediatric tertiary care teaching hospital. Data collected included patient demographics, history of atopy, with more comprehensive information collected if an allergy was reported. A clinical immunologist and an anesthetist reviewed the documentation of all patients reporting an allergy.

RESULTS

We reviewed 1001 pediatric patients, 158 (15.8%) patients with parent-reported allergies; to medications/drugs (n = 73), food (n = 66), environmental allergens (dust/grasses, n = 35), tapes/dressings (n = 27), latex (n = 4), and venom (eg, bee, wasp, n = 9). Forty-one patients reported antibiotic allergies, with Beta-lactam antibiotics being the most common, with the majority presenting with rash alone (57%). Ten patients reported allergies to nonsteroidal anti-inflammatory drugs and eight to opioids. Twenty-four patients reported egg and/or peanut allergy. Only 3/1001 (0.3%) patients were deemed to have evidence of likely IgE-mediated drug allergy. Of the reported allergies, only 60 (38.2%) had been investigated prior, most likely to be followed up were food (53%) and environmental allergies (44.4%). Only 4/73 (5.5%) reported medication allergies had further follow-up. Just four patients (0.4% of the entire cohort) had drug sensitivities/allergies that were likely to majorly alter anesthesia practice.

CONCLUSION

Only the minority of parent-reported allergies in pediatric surgical patients were specialist confirmed and likely to be clinically relevant. Self-reported food allergy is commonly specialist verified whereas reactions to medications were generally not. Over-reporting of allergies is increasingly common and limits clinician choice of medications. Better education of patients and their families and more timely verification or dismissal of parent-reported reactions is urgently needed.