Exploring the impact of comorbidities and drug resistance on mortality in ICU-acquired bloodstream infections

Hospital-acquired bloodstream infections (BSIs) seriously challenge critically ill patients. These infections in the ICU lead to significant morbidity, mortality, increased costs, and prolonged hospital stays. Therefore, the present study investigated this condition's prevalence and risk factor...

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Vydáno v:AMB Express Ročník 15; číslo 1; s. 70 - 9
Hlavní autoři: Sharifzadeh Kermani, Mahdieh, Pouradeli, Shiva, Sadeghian, Reihaneh, Momen Abadi, Zahra
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin/Heidelberg Springer Berlin Heidelberg 02.05.2025
Springer Nature B.V
SpringerOpen
Témata:
Bacteremia
Biomedical and Life Sciences
Biotechnology
Comorbidity
Diabetes
Diabetes mellitus (non-insulin dependent)
Drug addiction
Drug resistance
Hematological diseases
Hospitals
Hypertension
ICU-acquired bloodstream infection
Infections
Klebsiella
Life Sciences
Microbial Genetics and Genomics
Microbiology
Morbidity
Mortality
Multidrug resistance
Multiple drug resistance
Original
Original Article
Patients
Renal failure
Risk factors
Trauma
Vancomycin
Mortality
Bacteremia
ICU-acquired bloodstream infection
Multiple drug resistance
ISSN:2191-0855, 2191-0855
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Shrnutí:Hospital-acquired bloodstream infections (BSIs) seriously challenge critically ill patients. These infections in the ICU lead to significant morbidity, mortality, increased costs, and prolonged hospital stays. Therefore, the present study investigated this condition's prevalence and risk factors. This cross-sectional study was conducted on patients with neurological and nephrological issues admitted to general ICUs and trauma patients in two large hospitals in southeastern Iran. Bacteremia prevalence and mortality effects in ICU patients were analyzed from March 2020 to September 2022 during the COVID period. The results identified 127 patients with positive blood cultures, including 59 from the general ICU and 68 from the trauma ICU, yielding prevalences of 3.02% and 1.93%, respectively. The most common comorbidities included drug addiction (36.2%), chronic hypertension (35.4%), and type 2 diabetes (25.2%). Klebsiella pneumoniae was the most frequently isolated organism, followed by Staphylococcus epidermidis, Staphylococcus aureus , and Acinetobacter . The mortality rate was 93.2% in the general ICU and 60.3% in the trauma ICU. Risk factors associated with mortality included diabetes, hypertension, renal failure, drug addiction, a history of surgery in the last 30 days, ineffective experimental antibiotic treatment, and the administration of vasopressors. The prevalence of multiple drug resistance (MDR) was 33%, while Vancomycin-Resistant Enterococcus (VRE) was found in 9.4% of cases. These findings suggest that identifying and controlling risk factors associated with bacteremia in ICU patients is essential for reducing mortality.
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ISSN:2191-0855
2191-0855
DOI:10.1186/s13568-025-01874-w