509 Use of a burn sepsis screening protocol results in lower antibiotic usage rates

Abstract

Abstract Introduction Antibiotic stewardship is widely recognized as being a necessary component of modern hospital care but remains difficult to put into practice particularly on burn services where the risk of infection is known to be higher than the general hospital population. Our burn service instituted a protocol for sepsis screening triggers and antibiotic usage, becoming the only unit in our hospital to do so. In-house quality metrics have shown this protocol to be successful in reducing utilization. Methods With the opening of our burn unit in April 2018, a burn sepsis screening protocol was put in place (see accompanying image). Briefly, the first level of screening consists of threshold hemodynamic and physiologic parameters. If these are met the pathway leads to drawing of basic laboratory tests plus lactate and procalcitonin. Group A findings consist of either Serum Lactic Acid >2.2mmol/Lor Procalcitonin >0.69ng/ml, and Group B findings consist of: Platelets < 100,000/mmorGlucose >150 mg/dL or New Insulin Requirement. If one finding from each of groups A and B are present, antibiotics are started, and a source work up is initiated. De-identified aggregate data on antibiotic usage are routinely tracked as a quality metric by our hospital’s Infection Control Committee. The results from calendar year 2019 are presented here for all antibiotics, vancomycin usage, and beta-lactam usage. One-way Analysis of Variance with Tukey’s post-hoc testing was used to analyze the differences in intravenous antibiotic usage rates between the Burn Intensive Care Unit (BICU), the Trauma ICU (TICU), and the remainder of the hospital. Results The BICU used significantly fewer IV antibiotics than the TICU across all examined parameters and fewer than the remainder of the hospital for all antibiotics and vancomycin usage. Data is presented as antibiotic days/1000 patient days. Conclusions Initiation of a formal protocol for sepsis screening and IV antibiotic initiation significantly lowers antibiotic utilization. Future work will focus on this protocol’s impact on clinical outcomes.