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Search All Research Studies
Topics
- Adverse Drug Events (ADE) (1)
- Adverse Events (1)
- Antibiotics (9)
- (-) Antimicrobial Stewardship (9)
- Children/Adolescents (4)
- Clostridium difficile Infections (1)
- Critical Care (5)
- Decision Making (1)
- Diagnostic Safety and Quality (1)
- Healthcare-Associated Infections (HAIs) (1)
- (-) Intensive Care Unit (ICU) (9)
- Medication (6)
- Newborns/Infants (2)
- Patient Safety (1)
- Prevention (1)
- Sepsis (1)
AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 9 of 9 Research Studies DisplayedQureshi N, Kroger J, Zangwill KM
Changes in perceptions of antibiotic stewardship among neonatal intensive care unit providers over the course of a learning collaborative: a prospective, multisite, mixed-methods evaluation.
The purpose of this study was to assess clinician perceptions towards the value and implementation of antibiotic stewardship (AS) in neonatal intensive care units (NICU). The researchers conducted a mixed-methods study of AS perceptions utilizing surveys and interviews in 30 California NICUs before and after a multicenter collaborative (Optimizing Antibiotic Use in California NICUs [OASCN]). The study found that pre-OASCN, 24% of respondents believed there was "a lot of" or "some" inappropriate prescribing, often driven by fear of a bad outcome or hesitation to change existing practices. Clinicians reported statistically significant increases in AS importance, perceived AS activity, and more openness to change after OASCN.
AHRQ-funded; HS026168.
Citation: Qureshi N, Kroger J, Zangwill KM .
Changes in perceptions of antibiotic stewardship among neonatal intensive care unit providers over the course of a learning collaborative: a prospective, multisite, mixed-methods evaluation.
J Perinatol 2024 Jan; 44(1):62-70. doi: 10.1038/s41372-023-01823-0..
Keywords: Antibiotics, Antimicrobial Stewardship, Newborns/Infants, Intensive Care Unit (ICU), Critical Care
Chiotos K, Blumenthal J, Boguniewicz J
Antibiotic indications and appropriateness in the pediatric intensive care unit: a 10-center point prevalence study.
The purpose of this study was to describe indications and appropriateness of antibiotic orders in pediatric intensive care unit (PICU) patients. The study found that of 1462 patients admitted to participating PICUs, 58% had at least 1 antibiotic order, with 1277 antibiotic orders being reviewed. Common indications were empiric therapy for suspected bacterial infections without sepsis or septic shock, nonoperative prophylaxis, empiric therapy for sepsis or septic shock, community-acquired pneumonia, and post-operative prophylaxis. Appropriateness was evaluated for 985 orders for which an evidence-based heading for appropriateness could be created. Of these, 34% were categorized as inappropriate. Indications with the most orders classified as inappropriate were empiric therapy for suspected bacterial infection without sepsis or septic shock, sepsis or septic shock, CAP, ventilator-associated infections, and post-operative prophylaxis. The proportion of antibiotics classified as inappropriate differed across institutions.
AHRQ-funded; HS026393.
Citation: Chiotos K, Blumenthal J, Boguniewicz J .
Antibiotic indications and appropriateness in the pediatric intensive care unit: a 10-center point prevalence study.
Clin Infect Dis 2023 Feb 8; 76(3):e1021-e30. doi: 10.1093/cid/ciac698..
Keywords: Children/Adolescents, Intensive Care Unit (ICU), Antibiotics, Medication, Antimicrobial Stewardship, Sepsis
Chiotos K, Marshall D, Kellom K
Mixed-methods process evaluation of a respiratory-culture diagnostic stewardship intervention.
The purpose of this study was to perform an evaluation of a diagnostic stewardship initiative for respiratory culture in the healthcare setting within a pediatric intensive care unit (PICU) in a tertiary-care center. The study found that the frequency of culture collection per day of service differed among attending physicians, ranging from 2.2 to 27 cultures per 100 days. A total of 14 interviews were conducted, and 87 clinicians (response rate: 47%) along with 77 nurses or respiratory therapists (response rate: 17%) participated in the survey. There was a variation in clinicians' stated practices concerning culture ordering, which was influenced by both their specialty and their perception of the respiratory culture's usefulness. Additionally, group "default" practices, fear, and hierarchy affected the decision to order cultures. Obstacles to standardization encompassed concerns about missing a diagnosis and the conflict between standardized practices and individual judgment.
AHRQ-funded; HS026393.
Citation: Chiotos K, Marshall D, Kellom K .
Mixed-methods process evaluation of a respiratory-culture diagnostic stewardship intervention.
Infect Control Hosp Epidemiol 2023 Feb; 44(2):191-99. doi: 10.1017/ice.2022.299..
Keywords: Children/Adolescents, Diagnostic Safety and Quality, Antibiotics, Medication, Antimicrobial Stewardship, Intensive Care Unit (ICU)
Sullivan BA, Panda A, Wallman-Stokes A
Antibiotic spectrum index: a new tool comparing antibiotic use in three NICUs.
This study looked at a new tool called the antibiotic spectrum index (ASI) which quantifies antibiotic exposure by relative antimicrobial activity, adding information to exposure measured by days of therapy (DOT). This index was tested with very low-birth-weight infants (VLBW, <1500g) in 3 level-4 NICUs for 2 years at 2 sites and for 1 year at a third site. The authors calculated the ASI per antibiotic days and DOT per patient days for all admitted VLBW infants <32 weeks gestational age. The site with the highest DOT per patient days was found to have the lowest ASI per antibiotic days and the site with the highest mortality and infection rates were found to have the highest ASI per antibiotic days. Antibiotic utilization varied by center.
AHRQ-funded; HS026742.
Citation: Sullivan BA, Panda A, Wallman-Stokes A .
Antibiotic spectrum index: a new tool comparing antibiotic use in three NICUs.
Infect Control Hosp Epidemiol 2022 Nov;43(11):1553-57. doi: 10.1017/ice.2021.467..
Keywords: Antibiotics, Medication, Newborns/Infants, Intensive Care Unit (ICU), Critical Care, Antimicrobial Stewardship
Chiotos K, Fitzgerald JC, Hayes M
Improving vancomycin stewardship in critically ill children.
The purpose of this study was to describe a quality improvement intervention to reduce the use of vancomycin in a tertiary care Pediatric Intensive Care Unit. Over a period of 3 years, the researchers conducted 3 quality improvement (QI) interventions including 1) stakeholder education, 2) development of a consensus-based guideline for empiric vancomycin use, and 3) implementation of the guideline through clinical decision support. The study found that of 1276 episodes of suspected bacterial infection, a total of 19 cases of bacteremia (1.5%) due to organisms requiring vancomycin therapy were identified, including 6 MRSA bacteremias. Over the 3-year period of the QI project, overall vancomycin DOT per 1000 patient days in the PICU decreased from a baseline mean of 182 DOT per 1000 patient days to 109 DOT per 1000 patient days (a 40% reduction). The study concluded that the intervention reduced overall vancomycin use in the Pediatric Intensive Care Unit without evidence of harm.
AHRQ-funded; HS026393.
Citation: Chiotos K, Fitzgerald JC, Hayes M .
Improving vancomycin stewardship in critically ill children.
Pediatrics 2022 Apr;149(4):e2021052165. doi: 10.1542/peds.2021-052165..
Keywords: Children/Adolescents, Critical Care, Antimicrobial Stewardship, Antibiotics, Medication, Intensive Care Unit (ICU)
Carayon P, Thuemling T, Parmasad V
Implementation of an antibiotic stewardship intervention to reduce prescription of fluoroquinolones: a human factors analysis in two intensive care units.
In this study, researchers conducted an in-depth analysis of an intervention aimed at limiting ICU prescriber access to fluoroquinolones (FQ) in the ICUs of two hospitals. Their results showed some differences in the implementation of the FQ intervention between the two studied ICUs, such as level and method of FQ restriction, and training and communication with physicians and pharmacists. In both ICUs, several organizational learning mechanisms helped quickly to identify problems with the intervention and to ensure that changes were made in a just-in-time manner. Despite their organizational differences, both sites developed strategies to implement the FQ intervention successfully.
AHRQ-funded; HS026226.
Citation: Carayon P, Thuemling T, Parmasad V .
Implementation of an antibiotic stewardship intervention to reduce prescription of fluoroquinolones: a human factors analysis in two intensive care units.
J Patient Saf Risk Manag 2021 Jul;26(4):161-71..
Keywords: Antimicrobial Stewardship, Antibiotics, Medication, Intensive Care Unit (ICU)
Safdar N, Parmasad V, Brown R
Decreasing ICU-associated Clostridioides difficile infection through fluoroquinolone restriction, the FIRST trial: a study protocol.
Clostridioides difficile infection (CDI) is one of the most common healthcare-associated infections in the USA, having high incidence in intensive care units (ICU). Antibiotic use increases risk of CDI, with fluoroquinolones (FQs) particularly implicated. In healthcare settings, antibiotic stewardship (AS) and infection control interventions are effective in CDI control, but there is little evidence regarding the most effective AS interventions. In this paper the investigators describe their multisite, stepped-wedge, cluster, effectiveness-implementation clinical trial.
AHRQ-funded; R01 HS026226.
Citation: Safdar N, Parmasad V, Brown R .
Decreasing ICU-associated Clostridioides difficile infection through fluoroquinolone restriction, the FIRST trial: a study protocol.
BMJ Open 2021 Jun 29;11(6):e046480. doi: 10.1136/bmjopen-2020-046480..
Keywords: Clostridium difficile Infections, Healthcare-Associated Infections (HAIs), Intensive Care Unit (ICU), Antimicrobial Stewardship, Antibiotics, Medication, Prevention
Woods-Hill CZ, Koontz DW, King AF
Practices, perceptions, and attitudes in the evaluation of critically ill children for bacteremia: a national survey.
Sending blood cultures in children at low risk of bacteremia can contribute to a cascade of unnecessary antibiotic exposure, adverse effects, and increased costs. In this study, the investigators aimed to describe practice variation, clinician beliefs, and attitudes about blood culture testing in critically ill children. They concluded that there is variation in blood culture practices in the pediatric ICU. Fear and reflexive habits are common drivers of cultures. These practices may contribute to over-testing for bacteremia.
AHRQ-funded; HS025642.
Citation: Woods-Hill CZ, Koontz DW, King AF .
Practices, perceptions, and attitudes in the evaluation of critically ill children for bacteremia: a national survey.
Pediatr Crit Care Med 2020 Jan;21(1):e23-e29. doi: 10.1097/pcc.0000000000002176..
Keywords: Children/Adolescents, Critical Care, Antimicrobial Stewardship, Antibiotics, Adverse Drug Events (ADE), Adverse Events, Patient Safety, Intensive Care Unit (ICU), Decision Making
Chiotos K, Tamma PD, Gerber JS
Antibiotic stewardship in the intensive care unit: challenges and opportunities.
This study examined unique considerations and knowledge gaps in antibiotic stewardship intervention in the intensive care unit (ICU). There is limited data available, but the available data was summarized and included the impact of prospective audit and feedback, diagnostic test stewardship, rapid molecular diagnostic tests, and procalcitonin-guided algorithms for antibiotic discontinuation.
AHRQ-funded; HS026393.
Citation: Chiotos K, Tamma PD, Gerber JS .
Antibiotic stewardship in the intensive care unit: challenges and opportunities.
Infect Control Hosp Epidemiol 2019 Jun;40(6):693-98. doi: 10.1017/ice.2019.74..
Keywords: Antimicrobial Stewardship, Antibiotics, Intensive Care Unit (ICU), Critical Care, Antibiotics