Incidence, outcomes, and predictors of Acinetobacter infection in Saudi Arabian critical care units.
Acinetobacter
Incidence
Intensive care
Outcomes
Risk factors
Seasonality
Journal
Journal of critical care
ISSN: 1557-8615
Titre abrégé: J Crit Care
Pays: United States
ID NLM: 8610642
Informations de publication
Date de publication:
12 2021
12 2021
Historique:
received:
08
04
2021
revised:
17
08
2021
accepted:
17
08
2021
pubmed:
12
9
2021
medline:
28
10
2021
entrez:
11
9
2021
Statut:
ppublish
Résumé
Acinetobacter is an increasingly-problematic organism, especially in intensive care units (ICUs). In this study, we compared its incidence, outcomes, and predictors spanning eight ICUs in five geographically and climatologically-diverse cities in Saudi Arabia. Geographic, climatologic, hospital-related, and patient-related factors were collected prospectively on 3179 patients admitted to eight Saudi ICUs from June 2018 through June 2019. These data then underwent both bivariable and multivariable analysis, the latter vis hierarchical logistic regression to identify predictors of clinically-manifest Acinetobacter infection. Overall incidence of Acinetobacter infection was 3.9% (n = 124). Of these 124 infections, 122 (98.4%) were cultured as A. baumannii. Incidence ranged from 1.0 to 7.9% across the eight ICUs. On bivariable analysis, incident Acinetobacter infection was more common in university and military hospitals, in hospitals with more total beds and ICU isolation rooms, and in 2018 versus 2019, incidence steadily declining over the 13 study months. Mechanically-ventilated patients had ten-fold increased odds of infection. Adjusted (multivariable) analysis revealed the risk of clinically-manifest Acinetobacter infection to increase the longer patients were on mechanical ventilation. Increased risk also existed at certain hospitals over others, especially in university-affiliated and military hospitals, larger hospitals with more isolation rooms, and hospitals with fewer ICU beds. In our study of eight ICUs across Saudi Arabia, inter-hospital differences did appear to account for inter-hospital differences in Acinetobacter incidence rates. Patients requiring mechanical ventilation for longer periods of time were particularly at risk.
Sections du résumé
BACKGROUND
Acinetobacter is an increasingly-problematic organism, especially in intensive care units (ICUs). In this study, we compared its incidence, outcomes, and predictors spanning eight ICUs in five geographically and climatologically-diverse cities in Saudi Arabia.
METHODS
Geographic, climatologic, hospital-related, and patient-related factors were collected prospectively on 3179 patients admitted to eight Saudi ICUs from June 2018 through June 2019. These data then underwent both bivariable and multivariable analysis, the latter vis hierarchical logistic regression to identify predictors of clinically-manifest Acinetobacter infection.
RESULTS
Overall incidence of Acinetobacter infection was 3.9% (n = 124). Of these 124 infections, 122 (98.4%) were cultured as A. baumannii. Incidence ranged from 1.0 to 7.9% across the eight ICUs. On bivariable analysis, incident Acinetobacter infection was more common in university and military hospitals, in hospitals with more total beds and ICU isolation rooms, and in 2018 versus 2019, incidence steadily declining over the 13 study months. Mechanically-ventilated patients had ten-fold increased odds of infection. Adjusted (multivariable) analysis revealed the risk of clinically-manifest Acinetobacter infection to increase the longer patients were on mechanical ventilation. Increased risk also existed at certain hospitals over others, especially in university-affiliated and military hospitals, larger hospitals with more isolation rooms, and hospitals with fewer ICU beds.
CONCLUSION
In our study of eight ICUs across Saudi Arabia, inter-hospital differences did appear to account for inter-hospital differences in Acinetobacter incidence rates. Patients requiring mechanical ventilation for longer periods of time were particularly at risk.
Identifiants
pubmed: 34508982
pii: S0883-9441(21)00182-9
doi: 10.1016/j.jcrc.2021.08.010
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
109-116Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no competing interests.