Abstract

Background

Staphylococcus aureus bacteremia (SAB) is a heterogeneous disease with changing epidemiology due to changing demographics and evolving clinical management. SAB is associated with high mortality, but the current fraction of infection-related mortality is less well quantified.

Methods

In a multicenter prospective cohort study of consecutive patients with SAB, we determined clinical features of SAB and determined 90-day mortality and risk factors of all-cause and infection-related mortality. Infection-related mortality was based on an adjudication committee evaluation.

Results

Four hundred ninety patients with SAB were included, with community-acquired (n = 166), health care–associated (n = 163), and hospital-acquired SAB (n = 161). Endocarditis (n = 90, 18.3%), peripheral intravenous catheter infection (n = 80, 16.3%), and septic arthritis (n = 58, 11.8%) were the most frequent diagnoses, but proportions differed for community, health care, and hospital acquisition. One hundred ninety-two patients (39%) had permanent implanted prosthetic material (eg, prosthetic joint, heart valve, pacemaker). Day 90 all-cause mortality was 33% (n = 161), with 60% adjudicated as infection-related, and 90% of infection-related deaths occurring in the first 30 days post-SAB. Infection-related deaths after 30 days were rare and mainly related to endocarditis. Determinants associated with day 90 infection-related mortality were age (odds ratio [OR], 1.09; 95% CI, 1.06–1.11), Charlson comorbidity index (OR, 1.13; 95% CI, 1.01–1.26), septic shock (OR, 9.78; 95% CI, 4.56–20.95), endocarditis (OR, 3.4; 95% CI, 1.75–6.61), and persistent SAB at 48 hours (OR, 2.36; 95% CI, 1.27–4.37).

Conclusions

Mortality due to S. aureus infection remains high and mainly occurs in the first 30 days, which could guide end points in future studies.

Details

Title
All-Cause and Infection-Related Mortality in Staphylococcus aureus Bacteremia, a Multicenter Prospective Cohort Study
Author
Thomas W van der Vaart 1 ; Prins, Jan M 2 ; Soetekouw, Robin 3 ; Gitte van Twillert 4 ; Veenstra, Jan 5 ; Herpers, Bjorn L 6 ; Rozemeijer, Wouter 7 ; Jansen, Rogier R 8 ; Bonten, Marc J M 1 ; Jan T M van der Meer 2 

 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University , Utrecht , the Netherlands 
 Division of Infectious Diseases, Department of Internal Medicine, Amsterdam UMC, University of Amsterdam , Amsterdam , the Netherlands 
 Department of Internal Medicine, Spaarne Gasthuis , Haarlem , the Netherlands 
 Department of Internal Medicine, Noordwest Ziekenhuisgroep , Alkmaar , the Netherlands 
 Department of Internal Medicine, OLVG , Amsterdam , the Netherlands 
 Regional Public Health Laboratory Kennemerland , Haarlem , the Netherlands 
 Department of Medical Microbiology, Noordwest Ziekenhuisgroep , Alkmaar , the Netherlands 
 Department of Medical Microbiology, OLVG , Amsterdam , the Netherlands 
Publication year
2022
Publication date
Dec 2022
Publisher
Oxford University Press
e-ISSN
23288957
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3171173992
Copyright
© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.