Abstract
Background
Standard of care of nonoperative appendicitis patients involves ongoing antibiotic therapy. Yet, there is variability regarding the decision to continue outpatient parenteral antibiotic treatment (OPAT) or transition to oral (PO) antibiotics. We review antibiotic susceptibility patterns aiming to help guide antibiotic choice and reduce the need for OPAT.
Methods
Single center retrospective study reviewing pediatric inpatients who underwent nonoperative management of perforated appendicitis with cultures obtained during drainage by Interventional Radiology (IR). We reviewed age, ethnicity, hospitalization length, antibiotic choice, route and duration, and culture data.
Results
Forty-six patients underwent nonoperative medical management for appendicitis (23[50%] 5-12 year olds (yo); 16[35%] 12-< 18yo; 23[50%] Latino;13[28%] White, 11[24%] Other; 5[11%] Asian; 1[2%] Black). Thirty-eight [83%] patients went home on OPAT, 6[13%] on PO, and 2[4%] completed therapy while inpatient. Time from admission to IR drainage was 1.9 ± 2.8 days (34[75%] within 24 hours of admission, 3[8%] within 24-48, and 2[5%] within 48-72). Duration of hospital stay was 9.7 ± 4 days (PO) and 5.9 ± 2.7 days (OPAT). Duration on antibiotics was 20 ± 9.3 (PO) and 18.4 ± 4.9 days (OPAT). Labs on admission and discharge are compared in Table 1. Eight [17%] patients were readmitted due to complications, 38[83%] went home with a drain, and 20[43%] had a fecalith on CT scan. Based on culture susceptibilities of the 38 OPAT patients, 29[76%] had oral antibiotics as an option. The three most common organisms in those sent home on OPAT included Enterococcus faecalis (38[100%]), Bacteroides spp (33[87%]) and Escherichia coli (27[71%]) (Figure 1). All patients who grew Pseudomonas aeruginosa had a PO option; similarly with 93% of E. coli, 81% of α-hemolytic Streptococcus spp, and 76% of E. faecalis.
Conclusion
Nearly 80% of patients sent home on OPAT had PO antibiotic regimens options based on the culture results & susceptibility profiles. This data indicates that using cultures and susceptibility data can help guide antibiotic management, significantly reducing PICC line placement and likely reduce healthcare costs and complications associated with central lines.
Disclosures
All Authors: No reported disclosures
1521. Evaluation of the Microbiology of Intraabdominal Infections in Children and Implications for Treatment and Outcomes
