The interplay of infectious diseases consultation and antimicrobial stewardship in candidemia outcomes: A retrospective cohort study from 2016 to 2019

Factors influencing outcomes in candidemia: A retrospective study of patients in a Swedish county

BACKGROUND

Candidemia is a diverse condition and associated with a broad spectrum of clinical presentation. As mortality is high, timely diagnosis of candidemia and start of correct therapeutic treatment are essential.

OBJECTIVES

To investigate characteristics and factors influencing outcomes for patients with candidemia in a Swedish setting.

METHOD

All positive blood cultures for any Candida species in Östergötland County from 2012 to 2016 were screened. Medical records of patients fulfilling all inclusion criteria and no exclusion criteria were retrospectively reviewed to obtain data on risk factors, diagnostic and therapeutic procedures and at what wards candidemia was diagnosed. Univariate logistic regression and multivariable regression analysis were used to obtain odds ratio to determine risk factors for 30-day all-cause mortality associated with candidemia. A p-value <.05 was considered statistically significant.

RESULTS

Of all analysed risk factors, increasing age, renal failure with haemodialysis, immunosuppressant treatment, and severity of the infection (i.e. if septic shock was present) were significantly associated with 30-day mortality in univariate analysis (p < .05). Removal of a central venous catheter or an infectious diseases consultant was associated with a significantly lower odds ratio for death at 30 days (p < .05). With multivariable analysis, age, time to start of treatment and infectious disease consultant remained significant (p < .05).

CONCLUSION

In conclusion, this study provides an update of the epidemiology and outcomes of candidemia in a Swedish setting, highlighting that patients with candidemia are present at various departments and indicates the importance of an infectious disease consultant when candidemia is present.

Antifungal Stewardship in Invasive Fungal Infections, a Systematic Review

INTRODUCTION

Invasive fungal infections (IFI) are a group of life-threatening diseases associated with significant morbidity, mortality and high healthcare costs. Some modern management programs known as AFS (antifungal stewardship programs) have now been developed. The purpose of this systematic review is to evaluate the different declinations of antifungal stewardship programs (AFPs).

METHODS

Articles were systematically reviewed using the PRISMA checklist 2020. EMBASE and MEDLINE/PubMED were searched using the term "antifungal stewardship" (2012-2022 data) on 2 January 2023. Eligible studies were those that described an AFS and included an intervention, performance evaluation and outcome measures.

RESULTS

A total of 22/796 studies were included. Approximately two-thirds (16) were published between 2018 and 2022. 16 (72.7%) stated a minimal complete AFS team. 12 (54.5%) adopted a non-compulsory AFS approach, 6(27.3%) had an Educational AFS and 4(18.2%) a compulsory AFS. Cost analyses of 12 studies showed a decrease for 7 (31.8%) compared to an increase for 5 (22.7%). In terms of outcomes, 18 studies showed a lower (10;45.5%) or the same (8;36.4%) pre-post intervention mortality rate.

CONCLUSION

AFS programs seem to be related to lower costs and better outcomes and should thus be implemented in tandem with antimicrobial stewardship programs.

Impact of Infectious Diseases Consultation in Patients With Candidemia at a Multisite Health Care System With Established Antimicrobial Stewardship and Telemedicine Services

Background

Infectious diseases consultation improves outcomes in patients with candidemia, although some facilities lack access to consultation. This multisite health care system study compared in-hospital mortality in patients with candidemia across 3 groups-those who received on-site consultation, telemedicine consultation, or no consultation. All patients were reviewed by an antimicrobial stewardship pharmacist.

Methods

A retrospective observational cohort study was performed of adult hospitalized patients with candidemia from January 2018 to October 2021. The primary outcome was in-hospital mortality. Secondary outcomes included receipt and duration of antifungals, removal of central venous lines if present, ophthalmologic examination, echocardiography, and determination of infection source.

Results

A total of 265 patients were evaluated: 187 in the on-site consultation group, 49 in the telemedicine consultation group, and 29 in the nonconsultation group. Although in-hospital mortality did not differ significantly between the on-site and nonconsultation groups, it was significantly lower in the telemedicine group when compared with the nonconsultation group (10.2% vs 34.5%, P = .009). Patients who received on-site or telemedicine consultation had significantly more antifungal therapy initiated, appropriate therapy duration, central lines removed, and echocardiography performed, as well as fewer unknown candidemia sources, vs those in the nonconsultation group.

Conclusions

This is the first study of a multisite health care system providing telemedicine services to evaluate the impact of infectious diseases consultation on candidemia mortality. These findings suggest that when on-site consultation is unavailable, infectious diseases telemedicine consultation and antimicrobial stewardship can improve outcomes and should be considered for all patients with candidemia at resource-limited sites.