Development of a Pharmacist-Led Emergency Department Antimicrobial Surveillance Program

Future Directions

While minimal follow-up was required after a patient had left the ED, this study demonstrated a fundamental need for further refinements in antimicrobial stewardship activities within the ED. Duration of therapy, empiric selection, and proper dosing are key areas where the ED-based pharmacy resident was able to intervene during the time physically stationed in the ED. The data collected from this study demonstrated this and was ultimately combined with other ED-based interventions and utilized as supporting evidence in the pharmacy service business plan, outlining the necessity of a full-time pharmacy presence in the ED. The business plan submission, along with other ongoing RRVAMC initiatives, ultimately led to the approval for clinical pharmacy specialists to expand practice into the ED. These positions will continue to advance pharmacy practice within the ED, while affording opportunities for pharmacists to practice at the top of their licensure, provide individualized provider education, and deliver real-time antimicrobial stewardship interventions. Furthermore, as the majority of the study period was monitored outside of the ED, the project may provide a model for other VA institutions without full-time ED pharmacists to implement as a means to improve antimicrobial stewardship and further build an evidence base for expanding their pharmacy services to the ED.

Given the large number of fluoroquinolones utilized in the ED, this study has raised the question of what prescribing patterns look like with regards to outpatient UTI treatment within the realm of primary care at RRVAMC. Despite the great strides made with regards to antimicrobial stewardship at this facility on the inpatient side, no formal antimicrobial stewardship program exists for review in the outpatient setting, where literature suggests the majority of antibiotics are prescribed.^3,11 While more robust protocols are in place for follow-up of culture data in the primary care realm at this facility, the prescribing patterns are relatively unknown.

A recent study completed at a similar VA facility found that 60% of antibiotics prescribed for cystitis, pharyngitis, or sinusitis on an outpatient basis were guideline-discordant, and CDC guidance has further recommended specific focus should be undertaken with regards to outpatient stewardship practices in the treatment of genitourinary infections.^3,12 These findings highlight the need for outpatient antimicrobial stewardship and presents a compelling reason to further investigate outpatient prescribing within primary care at RRVAMC.

Strengths and Limitations

Strengths of the current study include the ability to monitor urine cultures in real time and to provide timely interventions in the event of a rare bug-drug mismatch. The evaluation of cultures in this study shows that the majority of cases had a drug selected with adequate coverage. The study did assure ED providers that, even though guidelines may suggest otherwise, urine cultures drawn in the ED at RRVAMC followed similar resistance patterns seen for the facility as a whole. Moreover, it is valuable as it captures data that are directly applicable to the VA patient population, in which there is little published data with regards to UTI treatment and no formal VA guidance.