Our weekly wrap-up of antimicrobial stewardship & antimicrobial resistance scans
BSAC launches global plan to accredit antimicrobial stewardship efforts
Yesterday, the British Society for Antimicrobial Chemotherapy (BSAC) launched the Global Antimicrobial Stewardship Accreditation Scheme (GAMSAS), which aims to support healthcare organizations globally by recognizing good practices to combat antimicrobial resistance, identifying areas for improvement, and supporting education and training.
BSAC said GAMSAS plans to establish centers of excellence around the world to support the spread of effective antimicrobial stewardship (AMS) programs, according to a BSAC news release.
BSAC President David Jenkins MBBS, said, "AMS is a collection of evidence-based tools that helps keep antimicrobial resistance at bay. AMS ensures best treatment for infected patients now and keeps antibiotics working for future patients. Accreditation is another evidence-based discipline that measures and drives up quality of healthcare.
"The BSAC GAMSAS is the first global scheme to combine these two methodologies to focus on antimicrobial prescribing," BSAC said in the release.
Sep 1 BSAC news release
GAMSAS website
Study finds antibiotic use high in kids' ICUs, with a third deemed improper
A point-prevalence study in 10 medical centers across the United States reveals that almost 60% of pediatric intensive care unit (PICU) patients receive antibiotics, and researchers estimate that a third of antibiotic orders in PICUs are inappropriate, according to a study yesterday in Clinical Infectious Diseases.
The group of scientists, led by researchers with the Children's Hospital of Philadelphia, conducted the study over 4 days in 2019. They call it the largest such study to date focused on PICU patients.
The researchers note that, of 1,462 PICU patients, 843 (58%) had at least one order for antibiotics. They reviewed 1,277 antibiotic orders and note that 260 orders (21%) were empiric therapy for suspected bacterial infections without sepsis or septic shock and 164 (13%) were for non-operative prophylaxis, followed by empiric therapy for sepsis or septic shock (155 orders; 12%), community acquired pneumonia (CAP; 118; 9%), and post-operative prophylaxis (94; 8%).
Of 985 orders assessed for appropriate prescribing, the investigators classified 331 (34%) as inappropriate. The most common of those were empiric therapy for suspected bacterial infection without sepsis or septic shock (78 orders; 24%), sepsis or septic shock (55; 17%), CAP (51; 15%), ventilator-associated infections (47; 14%), and post-operative prophylaxis (44; 14%). The proportion of antibiotics classified as inappropriate varied across PICUs, from 19% to 43%.
The authors conclude, "Tailoring empiric antibiotic choices, de-escalating antibiotics when no bacterial infection has been identified, limiting the duration of post-operative antibiotics, and ensuring antibiotic durations are aligned with national guidelines represent actionable stewardship targets in this population."
Sep 1 Clin Infect Dis abstract
Avails receives additional CARB-X funding for rapid susceptibility test
Originally published by CIDRAP News Sep 01
Diagnostics company Avails Medical announced today that it has received an additional $1.7 million in funding from CARB-X (the Combating Antibiotic-Resistant Bacteria Biopharmaceutical Accelerator) to continue developing a rapid electronic antibiotic susceptibility test (AST).
Company officials say the eAST system, which shortens the time to antibiotic susceptibility results from several days to an average of 5 hours, will enable healthcare providers to determine faster the best antibiotic treatment for patients with severe bloodstream infections. The system uses electronic biosensors that fit onto commercially available AST panels.
"Every hour counts for a patient with sepsis," Eszter Deak, PhD, director of scientific and medical affairs for Avails Medical, said in a company press release. "Avails' unique rapid eAST technology presents a meaningful opportunity to improve patient care by shortening the time to effective antibiotics at an affordable cost."
Avails, of Menlo Park, California, originally received $2.5 million in funding from CARB-X in February 2021.
Sep 1 Avails Medical press release
Stewardship tied to reduced inappropriate antibiotics for asymptomatic urinary issues
Originally published by CIDRAP News Aug 30
A single-center study in North Carolina showed that a multifaceted initiative was associated with a significant and sustainable decrease in inappropriate antibiotic prescribing for patients with asymptomatic bacteriuria (ASB; bacteria in the urine) and asymptomatic pyuria (ASP; elevated white blood cells in the urine), researchers reported today in Antimicrobial Stewardship & Healthcare Epidemiology.
The initiative, implemented in the emergency department (ED) of Wake Forest Baptist Medical Center in 2015, included verbal presentations for physicians and pharmacists, distribution of pocket cards and treatment algorithms, alerts embedded into order-entry software for urine cultures, and elimination of reflex urine-culture orders for positive urinalysis.
To determine the effectiveness, the researchers assessed the proportion of patients with ASP and ASB who were prescribed antibiotics within 72 hours of discharge from the ED in the preintervention period (August to October 2015) and two postintervention periods (December 2016 to February 2017, and November 2019 to January 2020).
The intervention was tied to a dramatic reduction in inappropriate prescribing for ASB and ASP, from 100% in the preintervention period to 32.4% in postintervention group 1. No change in the proportion of inappropriate prescribing was observed 3 years later, with 28% of patients receiving antibiotics for ASP and/or ASB in postintervention group 2. The analysis also found that withholding antibiotics for ASP or ASB did not increase the risk of returning to the ED with a symptomatic urinary tract infection within 30 days of discharge.
"These results suggest that there is no apparent harm from refraining from treatment of asymptomatic patients," the study authors wrote.
Aug 30 Antimicrob Steward Healthc Epidemiol study
Algorithm may aid appropriate antibiotic prescribing for kids with diarrhea
Originally published by CIDRAP News Aug 29
A randomized trial of children with diarrhea in two low-income countries found that use of an algorithm to predict the likelihood of viral etiology resulted in reduced antibiotic use in children who had a higher likelihood of viral illness, researchers reported today in JAMA Pediatrics.
To determine whether the diarrheal etiology prediction (DEP) algorithm improves prescribing in children with acute diarrhea, an international team of researchers conducted a randomized crossover study at 7 government hospitals in Bangladesh (3 sites) and Mali (4 sites). Physicians enrolled in the study were randomized into an intervention arm in which the DEP, which calculates the probability of viral etiology of diarrhea based on patient-specific and location-specific features, was incorporated into smartphone-based electronic clinical decision support tool (eCDS with the DEP), and a control arm (eCDS without DEP) for 4 weeks, followed by a 1-week washout period and 4-week crossover period. The primary outcome was the proportion of children who received an antibiotic.
A total of 30 physicians and 941 patients (57.1% male; median age, 12 months) were enrolled. Overall, 309 (69.8%) children in the DEP arm were prescribed antibiotics, compared with 381 (76.5%) in the control arm.
There was no evidence of a statistically significant difference in the proportion of children prescribed antibiotics by physicians using the DEP (risk difference [RD], −4.2%; 95% confidence interval [CI], −10.7% to 1.0%). A post hoc analysis, however, found that, in children who had a higher predicted probability of viral-only diarrhea, there was a small but statistically significant difference in risk of antibiotic prescription between the DEP and control arms (RD, −0.056; 95% CI, −0.128 to −0.01). No known adverse effects of the DEP were detected 10 days after discharge.
The study authors say the post hoc analysis suggests that providing physicians with an estimated probability of the cause of diarrheal illness can improve appropriateness of antibiotic use, particularly in low-resource settings where antibiotic treatment for diarrhea rarely follows international guidelines.
"These findings represent a technical and behavioral proof-of-concept that a probability-based eCDS in resource-limited settings can impact antibiotic use in pediatric patients," they wrote.
Aug 29 JAMA Pediatr study