1. Defining Pathogen and Susceptibility Patterns for Early Versus Late Ventilator Associated Pneumonia in Trauma Patients to Guide Empiric Treatment Decisions.
- Author
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Alexander KM, Davis SN, Butts CC, Morgan J, Croft LK, Lee YL, Kinnard CM, Polite NM, Mbaka MI, Williams AY, Barrington RA, Audia JP, and Simmons JD
- Subjects
- Adult, Humans, Sulbactam therapeutic use, Retrospective Studies, Ceftriaxone therapeutic use, Anti-Bacterial Agents therapeutic use, Ampicillin therapeutic use, Bacteria, Intensive Care Units, Pneumonia, Ventilator-Associated drug therapy, Pneumonia, Ventilator-Associated diagnosis, Methicillin-Resistant Staphylococcus aureus
- Abstract
Introduction: Studies have demonstrated that trauma patients with early-ventilator associated pneumonia (early-VAP, < 7 days) have decreased risk of methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa infections. We hypothesize that routinely using broad-spectrum antibiotics is unnecessary to treat trauma patients with the diagnosis of early-VAP., Methods: This retrospective cohort study included adult trauma patients with the diagnosis of VAP. The primary outcome was the presence of MRSA and/or P. aeruginosa in patients with early- and late-VAP. Secondary outcomes included the bacterial susceptibility of pathogens to methicillin, ampicillin/sulbactam, ceftriaxone, piperacillin/tazobactam, and cefepime. Intensive care unit (ICU) and hospital length of stay (LOS), ventilator-free days, and in-hospital mortality were also collected., Results: 164 patients met inclusion criteria, and 208 organisms (n = 90 early vs n = 118 late) were identified by respiratory culture. The incidence of MRSA and P. aeruginosa in early-VAP was 7.7% (7/90) and 5.6% (5/90), respectively. The susceptibility of bacteria causing early-VAP to ampicillin/sulbactam and ceftriaxone was 73.3% (66/90) and 83.3% (75/90), respectively. Ventilator-free days at 30 days was similar between groups ( P = .649). Patients with late-VAP spent more time in the ICU ( P = .040); however, in-hospital mortality was higher in the early-VAP group ( P = .012)., Conclusions: Ampicillin/sulbactam or ceftriaxone monotherapy did not provide reliable broad-spectrum coverage for early-VAP in our cohort. These findings highlight the importance of each institution performing a similar analysis to ensure adequate initial treatment of VAP., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2023
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