Staphylococcus aureus bacteremia (SAB) is a serious and sometimes devastating infection. There are established guidelines for optimal management, and more recently, numerous studies have shown the benefits of Infectious Diseases consultation, including improving guideline-adherent management, and reducing hospital stays, 30-day readmissions, and in-hospital mortality. Pharmacist-driven initiatives embedded within the Antimicrobial Stewardship Program (ASP) have also been shown to improve quality of care for patients with SAB.
In this study, Remtulla et al. described the impact of combining unsolicited prospective audit and feedback (PAF) a standardized SAB bundle on SAB management. ASP pharmacists used the SAB bundle once per patient, to make PAF recommendations to teams whose patients developed SAB. The SAB patients were identified to the ASP by twice-daily microbiology laboratory emails, only during normal business hours on non-holiday weekdays. The SAB checklist recommendations included ID consultation, repeat blood cultures, empiric therapy recommendation (vancomycin unless MSSA known), echocardiogram, duration of therapy guidance, and source control recommendations.
In their analysis of 199 patients, PAF recommendations were accepted at a rate of 92.6%, and 44% of the recommendations were for ID consultation. SAB bundle adherence increased from 29.0% to 72.8% (p<0.001) in the intervention group, with statistically significant (p<0.001) increases in ID consultation (56.5% vs 93.4%), guideline-adherent therapy (83.9% vs 99.3%), echocardiography (72.6% vs 95.6%), and duration of therapy (87.0% vs 100%). Reductions in 30 day readmission and 30 day mortality rates were not statistically significant, likely owing to the small study size.
Implementation of this SAB bundle seemed to augment the impact of ID consultation, because even in the intervention groups without ID consultation, the adherence to the bundle elements approached that of the pre-intervention groups with ID consultation.
This is yet another study demonstrating the ease of implementation of checklists/bundles for improving quality of patient care. Other studies have shown that automatic ID consultation for SAB can lead to better patient outcomes. However, the resources needed for automatic consultation may not be available to all hospitals, and this study provides another pharmacist-driven protocol that can also improve outcomes. Further improvements in an approach like this should include a mechanism for weekend/holiday notification in the absence of pharmacist presence, or inclusion of rapid diagnostic testing such as detection of mecA gene to facilitate earlier definitive treatment during uncovered periods.
Citation: Shahileen Remtulla, Karen Zurek, Carlos Cervera, Cristina Hernandez, Mao-Cheng Lee, Holly L Hoang, Impact of an Unsolicited, Standardized Form–Based Antimicrobial Stewardship Intervention to Improve Guideline Adherence in the Management of Staphylococcus aureus Bacteremia, Open Forum Infectious Diseases, Volume 6, Issue 4, April 2019, ofz098, https://doi.org/10.1093/ofid/ofz098





As Dr. Cawcutt wrote in her review, “De-escalation in culture-negative pneumonia may result in lower AKI and ICU and hospital LOS. There is clear potential benefit for patients and overall health care systems in advocating for earlier de-escalation, regardless of whether or not nares swabs were completed.”
My thesis research focused on trying to understand how orthopedic implant associated S. aureus biofilms modulates the metabolism of monocytes in order to promote the establishment and persistence of infection. Though my current research is on a fairly specific ailment, it may not directly inform my clinical practice in the future (unless of course I go into orthopedics). However, I have had a lot of opportunities to work on both the clinical and basic science side of a clinical study on orthopedic implant infections. It has helped me to understand how important communication is when trying to develop and carry out a clinical study. In my future, it will be essential for me to bridge the gap between the clinical and research teams.
Jonathan (Yoni) Herskovitz is an MD/PhD student working with Dr. Howard Gendelman studying therapies for HIV. We were excited to talk to him about his work and his plans for the future!
Laboratory research has instilled within me a number of disciplines that I hope to carry with me to clinical practice. I have learned how to formulate and test scientific hypotheses, just as I plan to create differential diagnoses and utilize labs to evaluate possible etiologies for illness. Although HIV infects individual cells, it has the potential to cause damage in almost every major organ system. This notion has taught me that it is important to remember that as clinicians, we treat people, not strictly diseases. Additionally, HIV impacts certain patient populations (e.g. communities in Africa, MSM, and IV drug users) with higher frequencies. It is therefore imperative to seek out opportunities to volunteer in at-risk and medically underserved areas so that I can best understand potential treatment complexities in my regular practice. Finally, my project has taught me to always think about how a particular product or finding can be improved upon. Frequently the answer to these questions requires help from others and it is this dynamic teamwork for the betterment of patients that excites me most about becoming a doctor.
I am an avid amateur stargazer / space enthusiast. Looking at our universe through my telescope and learning about various technologies to explore it inspires me too look past my immediate concerns towards something greater. Plus, my wife usually joins me for these astronomy outings, which is always a bonus.
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