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

Published online by Cambridge University Press:  09 September 2022

Jonathan H. Ryder*
Affiliation:
Division of Infectious Diseases, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
Trevor C. Van Schooneveld
Affiliation:
Division of Infectious Diseases, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
Elizabeth Lyden
Affiliation:
Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska
Razan El Ramahi
Affiliation:
Infectious Disease Doctors, PA, Fort Worth, Texas
Erica J. Stohs
Affiliation:
Division of Infectious Diseases, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
*
Author for correspondence: Jonathan H. Ryder, E-mail: jonathan.ryder@unmc.edu

Abstract

Objective:

To evaluate the need for mandatory infectious diseases consultation (IDC) for candidemia in the setting of antimicrobial stewardship guidance.

Design:

Retrospective cohort study from January 2016 to December 2019.

Setting:

Academic quaternary-care referral center.

Patients:

All episodes of candidemia in adults (n = 92), excluding concurrent bacterial infection or death or hospice care within 48 hours.

Methods:

Primary outcome was all-cause 30-day mortality. Secondary outcomes included guideline-adherence and treatment choice. Guideline-adherence was assessed with the EQUAL Candida score.

Results:

Of 186 episodes of candidemia, 92 episodes in 88 patients were included. Central venous catheters (CVCs) were present in 66 episodes (71.7%) and were the most common infection source (N = 38, 41.3%). The most frequently isolated species was Candida glabrata (40 of 94, 42.6%). IDC was performed in 84 (91.3%) of 92 candidemia episodes. Mortality rates were 20.8% (16 of 77) in the IDC group versus 25% (2 of 8) in the no-IDC group (P = .67). Other comparisons were numerically different but not significant: repeat blood culture (98.8% vs 87.5%; P = .17), echocardiography (70.2% vs 50%; P = .26), CVC removal (91.7% vs 83.3%; P = .45), and initial echinocandin treatment (67.9% vs 50%; P = .44). IDC resulted in more ophthalmology examinations (67.9% vs 12.5%; P = .0035). All patients received antifungal therapy. Antimicrobial stewardship recommendations were performed in 19 episodes (20.7%). The median EQUAL Candida score with CVC was higher with IDC (16 vs 11; P = .001) but not in episodes without CVC (12 vs 11.5; P = .81).

Conclusions:

In the setting of an active antimicrobial stewardship program and high consultation rates, mandatory IDC may not be warranted for candidemia.

Type
Original Article
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of The Society for Healthcare Epidemiology of America

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Footnotes

PREVIOUS PRESENTATION: These data were presented as a poster at IDWeek 2021 on September 29–October 3, 2021, held virtually. The abstract was previously published: Ryder JH, Van Schooneveld TC, Stohs EJ. Is there value of infectious diseases consultation in candidemia? A single-center retrospective review from 2016–2019. Open Forum Infect Dis 2021;8 supplement 1:S584–S585.

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