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Landscape of antimicrobial stewardship programs in Ontario: a survey of hospitals.

ABSTRACT: BACKGROUND:Antimicrobial resistance is an important public health issue globally and in Canada. To understand the current state of antimicrobial stewardship programs in Ontario health care facilities, Public Health Ontario conducted a voluntary survey of hospitals in the province. METHODS:The Ontario Antimicrobial Stewardship Program Landscape Survey was distributed online to hospitals, targeting front-line antimicrobial stewardship clinicians. The survey was open for 5 weeks in fall 2016. We used email and telephone reminders to encourage response. We performed descriptive and inferential statistical analyses at an aggregate level and by hospital type. Mental health and ambulatory sites were excluded. RESULTS:The response rate was 74.0% (97/131 organizations). Of the 97, 90 (93%) reported having a formal antimicrobial stewardship program or were in the process of implementing a formal program. Just over half (50 [56%]) identified appropriate antibiotic use as part of the organization's quality-improvement plan, strategic goal or priority. Half (45 [50%]) of programs did not have designated resources; those that did are underresourced with respect to physician and pharmacist staffing. The scope of implementation of program strategies was variable. Fifty hospitals (56%) reported tracking antimicrobial expenditures, 47 (52%) reported tracking defined daily dose, and 35 (39%) reported tracking days of therapy. INTERPRETATION:Most Ontario hospitals have a formal antimicrobial stewardship program, but there are opportunities for improvement. Future efforts should increase the priority of and improve resource allocation for antimicrobial stewardship programs so that programs can continue to grow in scope and impact.

SUBMITTER: Leung V

PROVIDER: S-EPMC5878946 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ImportanceThe feasibility of core Infectious Diseases Society of America-recommended antimicrobial stewardship interventions in community hospitals is unknown.ObjectiveTo determine the feasibility and results of implementing 2 core stewardship intervention strategies in community hospitals.Design, setting, and participantsThree-stage, multicenter, prospective nonrandomized clinical trial with crossover design. The setting was 4 community hospitals in North Carolina (median bed size, 305; range, 102-425). Participants were all patients receiving targeted study antibacterial agents or alternative, nonstudy antibacterial agents. The study dates were October 2014 through October 2015. All statistical analyses were completed as of October 2016.InterventionsTwo antimicrobial stewardship strategies targeted vancomycin hydrochloride, piperacillin-tazobactam, and the antipseudomonal carbapenems on formulary at the study hospitals: (1) modified preauthorization (PA), in which the prescriber had to receive pharmacist approval for continued use of the antibiotic after the first dose, and (2) postprescription audit and review (PPR), in which the pharmacist would engage the prescriber about antibiotic appropriateness after 72 hours of therapy. Two hospitals performed modified PA for 6 months, then PPR for 6 months after a 1-month washout. The other 2 hospitals performed the reverse.Main outcomes and measuresThe primary outcome was the feasibility of implementing the interventions, determined by (1) approval by hospital administration and committees at each study hospital; (2) completion of pharmacist training; (3) initiation and implementation as determined by number, type, and outcomes of interventions performed; and (4) time required for interventions. Secondary outcomes included antimicrobial use (days of therapy) compared with matched historical periods and length of hospitalization.ResultsA total of 2692 patients (median age, 65 years; interquartile range, 53-76 years) underwent a study intervention; 1413 (52.5%) were female, 1323 (49.1%) were white, and 1047 (38.9%) were African American. Intervention approvals took a median of 95 days (range, 56-119 days); during these discussions, strict PA was deemed not feasible. Instead, the modified PA intervention was used throughout the study. Pharmacists performed 1456 modified PA interventions (median per hospital, 350 [range, 129-628]) and 1236 PPR interventions (median per hospital, 298 [range, 273-366]). Study antimicrobials were determined to be inappropriate 2 times as often during the PPR period (41.0% [435 of 1060] vs 20.4% [253 of 1243]; P < .001). Pharmacists recommended dose change more often during the modified PA intervention (15.9% [232 of 1456] vs 9.6% [119 of 1236]; P < .001) and de-escalation during PPR (29.1% [360 of 1236] vs 13.0% [190 of 1456]; P < .001). The median time dedicated to the stewardship interventions varied by hospital (range of median hours per week, 5-19). Overall antibiotic use decreased during PPR compared with historical controls (mean [SD] days of therapy per 1000 patient-days, 925.2 [109.8] vs 965.3 [109.4]; mean difference, -40.1; 95% CI, -71.7 to -8.6), but not during modified PA (mean [SD] days of therapy per 1000 patient-days, 931.0 [102.0] vs 926.6 [89.7]; mean difference, 4.4; 95% CI, -55.8 to 64.7).Conclusions and relevanceStrict PA was not feasible in the study hospitals. In contrast, PPR was a feasible and effective strategy for antimicrobial stewardship in settings with limited resources and expertise.Trial registrationClinicalTrials.gov identifier: NCT02212808.

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Landscape of antimicrobial stewardship programs in Ontario: a survey of hospitals.

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