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Life sciences · Journal article
Infection Prevention in Practice · August 1, 2026
Encouraging direction, but not yet definitive.
This single-centre retrospective cohort of 85 MRSA bacteraemia patients found that pharmacist-coordinated IDST participation was independently associated with higher bundle adherence (79.5% vs 39.1%) and lower mortality at both 28 and 90 days (hazard ratios 0.328 and 0.427, both p<0.05). The findings suggest potential benefit but are limited by retrospective conduct, single-site setting, and small sample size, requiring prospective validation before clinical adoption.
Single-centre retrospective cohort study. Adults with MRSA bacteraemia diagnosed at Yamanashi Prefectural Central Hospital between April 2020 and June 2025.. Intervention: Pharmacist-coordinated Infectious Disease Support Team (IDST) co-management, established in 2022, optimizing diagnostics, dosing, and treatment duration.. Compared with: Usual care without IDST participation. n = 85. Single centre: Yamanashi Prefectural Central Hospital, Japan.
Bundle adherence ≥75% achieved in 79.5% with IDST versus 39.1% without IDST (57.6% overall) 28-day mortality 30.6% overall; IDST associated with lower 28-day mortality (log-rank p=0.031; HR 0.328, 95% CI 0.136–0.792; p=0.013) 90-day mortality 49.4% overall; IDST associated with lower 90-day mortality (log-rank p=0.017; HR 0.427, 95% CI 0.215–0.846; p=0.015)
28-day mortality 30.6% overall; IDST associated with lower 28-day mortality (log-rank p=0.031; HR 0.328, 95% CI 0.136–0.792; p=0.013) 90-day mortality 49.4% overall; IDST associated with lower 90-day mortality (log-rank p=0.017; HR 0.427, 95% CI 0.215–0.846; p=0.015)
For clinicians in settings with limited infectious disease physician availability, a pharmacist-coordinated stewardship model may improve guideline adherence and reduce mortality in MRSA bacteraemia, but this single-centre finding requires prospective validation before widespread implementation. The independence of the IDST effect in multivariable models is encouraging but does not exclude unmeasured confounding in this retrospective cohort.
Single-centre retrospective cohort showing IDST intervention independently associated with reduced 28- and 90-day mortality in MRSA bacteraemia, with hazard ratios 0.328 and 0.427 respectively, but limited by retrospective design, small sample, and single-site conduct.
As stated by the source record.
Quoted from the source exactly as published.
For clinicians in settings with limited infectious disease physician availability, a pharmacist-coordinated stewardship model may improve guideline adherence and reduce mortality in MRSA bacteraemia, but this single-centre finding requires prospective validation before widespread implementation. The independence of the IDST effect in multivariable models is encouraging but does not exclude unmeasured confounding in this retrospective cohort.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
Background Methicillin-resistant Staphylococcus aureus (MRSA) bacteraemia carries high mortality. At Yamanashi Prefectural Central Hospital, antimicrobial stewardship has focused on appropriate drug use. In 2022, a pharmacist-coordinated Infectious Disease Support Team (IDST) was established to optimize management, including diagnostics, dosing, and treatment duration. We evaluated the effects of IDST participation on the adherence to a predefined Staphylococcus aureus bacteraemia treatment bundle and mortality. Methods We conducted a single-centre retrospective cohort study of adults with MRSA bacteraemia diagnosed between April 2020 and June 2025. Patients were categorized into IDST intervention or non-intervention groups. Bundle adherence (≥75% defined as ≥9/12 items) and 28- and 90-day mortality were analyzed using Kaplan–Meier analysis with log-rank tests and Cox proportional-hazards models; two-sided p<0.05 was considered significant. Results 85 patients were included in the study. Overall, bundle adherence ≥75% occurred in 57.6%; adherence was higher with IDST than without (79.5% vs 39.1%). 28-day mortality occurred in 26 (30.6%) and 90-day mortality in 42 (49.4%), respectively. Survival analysis showed lower 28-day (log-rank p=0.031) and 90-day mortality (p=0.017) with IDST. In multivariable models, IDST remained independently protective at 28-days (hazard ratio 0.328, 95% CI, 0.136–0.792; p=0.013) and 90-days (hazard ratio 0.427, 95% CI 0.215–0.846; p=0.015). Conclusions Pharmacist-coordinated IDST co-management significantly improved adherence to evidence-based care and was associated with reduced short- and intermediate-term mortality in patients with MRSA bacteraemia. This model may be applicable to hospitals with limited continuous on-site availability of infectious disease physicians, provided that specialist oversight remains accessible.
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