A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis

Introduction: Candidemia is a severe condition associated with high mortality, and fungi are often not covered by empiric antimicrobial regimes for sepsis. Therefore, the shortest possible time to detection of yeast in the blood is of the essence. Materials and methods: We performed a cohort study o...

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Main Authors: Magnus G. Ahlström, Valeria S. Antsupova, Michael Pedersen, Helle Krogh Johansen, Dennis Schrøder Hansen, Inge Jenny Dahl Knudsen
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/9/4/441
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author Magnus G. Ahlström
Valeria S. Antsupova
Michael Pedersen
Helle Krogh Johansen
Dennis Schrøder Hansen
Inge Jenny Dahl Knudsen
author_facet Magnus G. Ahlström
Valeria S. Antsupova
Michael Pedersen
Helle Krogh Johansen
Dennis Schrøder Hansen
Inge Jenny Dahl Knudsen
author_sort Magnus G. Ahlström
collection DOAJ
description Introduction: Candidemia is a severe condition associated with high mortality, and fungi are often not covered by empiric antimicrobial regimes for sepsis. Therefore, the shortest possible time to detection of yeast in the blood is of the essence. Materials and methods: We performed a cohort study of blood culture flasks drawn from patients aged 18 or older in the capital region of Denmark. In 2018 a blood cultures set consisted of two aerobic and two anaerobic flasks. This was changed in 2020 to two aerobic, one anaerobic, and one mycosis flask. We used time-to-event statistics to model time to positivity and compared 2018 with 2020; further, we stratified analyses on the blood culture system used (BacTAlert™ vs. BACTEC™) and high-risk vs. low-risk departments. Results: We included 175,416 blood culture sets and 107,077 unique patients. We found an absolute difference in the likelihood of identifying fungi in a blood culture set of 1.2 (95% CI: 0.72; 1.6) pr. 1.000 blood culture sets corresponding to the number needed to treat 853 (617; 1382). In high-risk departments, the absolute difference was profound, whereas it was negligible and statistically non-significant in low-risk departments 5.2 (95% CI: 3.4; 7.1) vs. 0.16 (−0.17; 0.48) pr. 1.000 blood culture sets. Conclusions: We found that including a mycosis flask in a blood culture set increases the likelihood of identifying candidemia. The effect was mainly seen in high-risk departments.
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spelling doaj.art-ac295fa10f5c441ba00c7965e6ac934d2023-11-17T19:58:11ZengMDPI AGJournal of Fungi2309-608X2023-04-019444110.3390/jof9040441A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia SepsisMagnus G. Ahlström0Valeria S. Antsupova1Michael Pedersen2Helle Krogh Johansen3Dennis Schrøder Hansen4Inge Jenny Dahl Knudsen5Department of Clinical Microbiology, Herlev & Gentofte Hospital, 2730 Herlev, DenmarkDepartment of Clinical Microbiology, Herlev & Gentofte Hospital, 2730 Herlev, DenmarkDepartment of Clinical Microbiology, Amager & Hvidovre Hospital, 2650 Hvidovre, DenmarkDepartment of Clinical Microbiology, Rigshospitalet, 2100 Copenhagen, DenmarkDepartment of Clinical Microbiology, Herlev & Gentofte Hospital, 2730 Herlev, DenmarkDepartment of Clinical Microbiology, Rigshospitalet, 2100 Copenhagen, DenmarkIntroduction: Candidemia is a severe condition associated with high mortality, and fungi are often not covered by empiric antimicrobial regimes for sepsis. Therefore, the shortest possible time to detection of yeast in the blood is of the essence. Materials and methods: We performed a cohort study of blood culture flasks drawn from patients aged 18 or older in the capital region of Denmark. In 2018 a blood cultures set consisted of two aerobic and two anaerobic flasks. This was changed in 2020 to two aerobic, one anaerobic, and one mycosis flask. We used time-to-event statistics to model time to positivity and compared 2018 with 2020; further, we stratified analyses on the blood culture system used (BacTAlert™ vs. BACTEC™) and high-risk vs. low-risk departments. Results: We included 175,416 blood culture sets and 107,077 unique patients. We found an absolute difference in the likelihood of identifying fungi in a blood culture set of 1.2 (95% CI: 0.72; 1.6) pr. 1.000 blood culture sets corresponding to the number needed to treat 853 (617; 1382). In high-risk departments, the absolute difference was profound, whereas it was negligible and statistically non-significant in low-risk departments 5.2 (95% CI: 3.4; 7.1) vs. 0.16 (−0.17; 0.48) pr. 1.000 blood culture sets. Conclusions: We found that including a mycosis flask in a blood culture set increases the likelihood of identifying candidemia. The effect was mainly seen in high-risk departments.https://www.mdpi.com/2309-608X/9/4/441candidemiablood culturetime to detectionmycosis flasksepsis
spellingShingle Magnus G. Ahlström
Valeria S. Antsupova
Michael Pedersen
Helle Krogh Johansen
Dennis Schrøder Hansen
Inge Jenny Dahl Knudsen
A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
Journal of Fungi
candidemia
blood culture
time to detection
mycosis flask
sepsis
title A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
title_full A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
title_fullStr A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
title_full_unstemmed A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
title_short A Dedicated Mycosis Flask Increases the Likelihood of Identifying Candidemia Sepsis
title_sort dedicated mycosis flask increases the likelihood of identifying candidemia sepsis
topic candidemia
blood culture
time to detection
mycosis flask
sepsis
url https://www.mdpi.com/2309-608X/9/4/441
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