Cited by 90Antifungal resistance and susceptibilityCentral Venous Catheters and HemodialysisInfective Endocarditis Diagnosis and Management

Time to blood culture positivity as a marker for catheter-related candidemia

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Ben-Ami, Ronen, Weinberger, Miriam, Orni-Wasserlauff, Ruth, Schwartz, David, Itzhaki, Avraham, Lazarovitch, Tzipora, Bash, Edna, Aharoni, Yuval +2 more·2008·Journal of Clinical Microbiology

Abstract

Candida spp. are important causes of nosocomial bloodstream infections. Around 80% of patients with candidemia have an indwelling central venous catheter (CVC). Determining whether the CVC is the source of candidemia has implications for patient management. We assessed whether the time to detection of Candida species in peripheral blood (time to positivity [TTP]) can serve as a marker for catheter-related candidemia. Prospective surveillance of Candida bloodstream infection was conducted in two medical centers. TTP was recorded by the BacT/Alert automated system. Sixty-four candidemia episodes were included. Fifty patients (78%) had an indwelling CVC. Thirteen patients (20.3%) had definite catheter-related candidemia. TTP was shorter for definite catheter-related candidemia (17.3 ± 2 h) than that for candidemia from other sources (38.2 ± 3 h; P < 0.001). A TTP cutoff of 30 h was 100% sensitive and 51.4% specific for catheter-related candidemia (area under the receiver-operator characteristic curve of 0.76). We conclude that TTP in peripheral blood is a sensitive but nonspecific marker for catheter-related candidemia and that a TTP of more than 30 h can help exclude an intravascular catheter as the possible source of candidemia.

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Authors
Ben-Ami, R., Weinberger, M., Orni-Wasserlauff, R., Schwartz, D., Itzhaki, A., Lazarovitch, T., Bash, E., Aharoni, Y., Moroz, I., & Giladi, M.
Affiliations
  • Infectious Diseases Unit
  • Tel Aviv University (IL)
  • Tel Aviv Sourasky Medical Center (IL)
  • Assaf Harofeh Medical Center (IL)
Venue
Journal of Clinical Microbiology
Published
2008-07
Volume
46
Issue
7
Pages
2222-2226
ISSN
  • 0095-1137 (ISSN-L)
  • 1098-660X
OpenAlex
W2105581912
Cited by
90
References
18
Citations by year
2026: 4 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 7 · 2020: 4 · 2019: 6 · 2018: 2 · 2017: 3 · 2016: 5 · 2015: 4 · 2014: 10 · 2013: 10 · 2012: 6
FWCI
4.95
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Health Sciences › Health Professions › Emergency Medical Services › Central Venous Catheters and Hemodialysis
  • Health Sciences › Medicine › Epidemiology › Infective Endocarditis Diagnosis and Management
Keywords
catheter-related candidemia, time to positivity, blood culture, candidemia, central venous catheters, nosocomial infections, infection source identification, diagnostic biomarkers, BacT/Alert
MeSH terms
Academic Medical Centers, Aged, Aged, 80 and over, Blood, Candida, Candidiasis, Catheters, Indwelling, Cross Infection, Female, Humans, Male, Middle Aged, Mycology, Prospective Studies, Sensitivity and Specificity, Time Factors, Fungemia

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