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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 4 of 4 Research Studies DisplayedChiotos 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)
Woods-Hill CZ, Colantuoni EA, Koontz DW
Association of diagnostic stewardship for blood cultures in critically ill children with culture rates, antibiotic use, and patient outcomes: results of the Bright STAR Collaborative.
The purpose of this AHRQ-funded prospective study was to assess the relationship between a 14-site PICU blood culture collaborative, the Bright STAR (Testing Stewardship for Antibiotic Reduction) collaborative, and culture rates, antibiotic use, and patient outcomes. The researchers collected data from each participating PICU across the United States and from the Children’s Hospital Association Pediatric Health Information System. The main outcome was blood culture rates, with secondary outcomes including: broad-spectrum antibiotic use and PICU rates of central line-associated bloodstream infection (CLABSI), Clostridioides difficile infection, readmission, length of stay, sepsis, severe sepsis/septic shock, and mortality. The study found that the blood culture rate preimplementation across the 14 PICUs was 149.4 per 1000 patient days per month, and the rate postimplementation was 100.5 for a 33% relative reduction postimplementation. For those same periods, the rate of antibiotic use decreased from 506 days per 1000 patient-days per month preimplementation to 440 days per 1000 patient-days per month postimplementation, which reflects a 13% relative reduction. Rates of CLABSI decreased from 1.8 to 1.1 per 1000 central venous line days per month, a 36% relative reduction. The variables of length of stay, readmission, sepsis, severe sepsis/septic shock, and mortality were similar before and after implementation. The researchers concluded that collaborative interventions can reduce blood culture and antibiotic use in the PICU.
AHRQ-funded; HS025642.
Citation: Woods-Hill CZ, Colantuoni EA, Koontz DW .
Association of diagnostic stewardship for blood cultures in critically ill children with culture rates, antibiotic use, and patient outcomes: results of the Bright STAR Collaborative.
JAMA Pediatr 2022 Jul;176(7):690-98. doi: 10.1001/jamapediatrics.2022.1024..
Keywords: Children/Adolescents, Sepsis, Critical Care, Antibiotics, Medication, Diagnostic Safety and Quality, Antimicrobial Stewardship
Beeber AS, Kistler CE, Zimmerman S
Nurse decision-making for suspected urinary tract infections in nursing homes: potential targets to reduce antibiotic overuse.
This study’s goal was to determine what information is most important to registered nurses (RNs) decisions to call clinicians about suspected urinary tract infections (UTIs) in nursing home residents. An online survey was conducted with a convenience sample of 881 RNs recruited from a health care research panel. Clinical scenarios from 10 categories of resident characteristics were used: UTI risk, resident type, functional status, mental status, lower urinary tract status, body temperature, physical exam, urinalysis, antibiotic request, and goals of care. Participants were randomized into 2 deliberation conditions: self-paced (n=437) and forced deliberation (n=444). Painful or difficult urinary, obvious blood in urine and temperature at 101.5° had the highest odds of a RN calling a clinician by the forced-deliberation group. For the self-paced group, painful or difficult urination had the highest odds.
AHRQ-funded; HS024519.
Citation: Beeber AS, Kistler CE, Zimmerman S .
Nurse decision-making for suspected urinary tract infections in nursing homes: potential targets to reduce antibiotic overuse.
J Am Med Dir Assoc 2021 Jan;22(1):156-63. doi: 10.1016/j.jamda.2020.06.053..
Keywords: Urinary Tract Infection (UTI), Antibiotics, Antimicrobial Stewardship, Medication, Nursing Homes, Long-Term Care, Decision Making, Diagnostic Safety and Quality
Furuno JP, Comer AC, Johnson JK
Using antibiograms to improve antibiotic prescribing in skilled nursing facilities.
The researchers describe the design and implementation of a skilled nursing facility (SNF) specific antibiogram to improve empirical antibiotic prescribing. They estimated the frequency of inappropriate antibiotic prescribing in 3 Maryland SNFs and measured the effectiveness of the antibiograms on antibiotic prescribing in 1 of the SNFs.
AHRQ-funded; 290200600020I
Citation: Furuno JP, Comer AC, Johnson JK .
Using antibiograms to improve antibiotic prescribing in skilled nursing facilities.
Infect Control Hosp Epidemiol. 2014 Oct;35 Suppl 3:S56-61. doi: 10.1086/677818..
Keywords: Long-Term Care, Antimicrobial Stewardship, Nursing Homes, Diagnostic Safety and Quality