The study aims to assess the accuracy and impact of rapid diagnosis and rapid diagnosis decision support on different aspects of antibiotic consumption when implemented alone or together.
This interventional study in two centers compares two groups with each other and with a pre-intervention control group. In group 1 rapid techniques for handling urine cultures will be the only intervention. In group 2 rapid diagnostics will be supplemented with real-time antimicrobial stewardship decision support (RADS). In each center two departments will be involved. Urine samples present at the laboratory at opening on weekdays will be screened using urine flow cytometry and microscopy of centrifuged gram stained urine. Samples found positive for significant mono microbial bacteriuria will be investigated further by using direct automated phenotypic identification and antimicrobial susceptibility determination and screened for inclusion in the interventional study. In one of the centers, rapid techniques will be coupled to real-time antimicrobial stewardship decision support (RADS). RADS will be given by telephone to a designated clinician with the aim of: 1. Switch to active treatment if non-working empirical treatment 2. De-escalate broad spectrum empiric treatment when feasible 3. Promote early intravenous to per oral switch 4. Shorten treatment duration
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
400
Urine samples present at the laboratory at opening on weekdays will be screened using urine flow cytometry and microscopy of centrifuged gram stained urine. Samples found positive for significant mono microbial bacteriuria will be investigated further by using direct automated phenotypic identification and antimicrobial susceptibility determination.
A clinical microbiologist will be give RADS by phone to a designated clinician with the aim of: 1. Switch to active treatment if non-working empirical treatment 2. De-escalate broad spectrum empiric treatment when feasible 3. Promote early intravenous to per oral switch 4. Shorten treatment duration
Ålesund Hospital
Ålesund, Norway
Molde Hospital
Molde, Norway
All-cause 30-day mortality
Time frame: 30 days
Adherence to guidelines for empirical therapy
Antibiotics given before results of microbiology diagnostics.
Time frame: Recorded at inclusion or within 30 days after admission/inclusion.
Total antibiotic consumption in intervention groups and control group compared
Total consumption of antibiotic during admission and prescribed oral antibiotics after discharge. Expressed in (DDD) "the assumed average maintenance dose per day for the drug used for its main indication in adults" / admission
Time frame: Recorded at inclusion or within 30 days after admission/inclusion.
Use of broad spectrum antibiotics - DDD/admission in intervention groups compared with control group.
Time frame: Recorded 30 days after admission/inclusion.
Time from admission to optimal antibiotic therapy
Optimal treatment is defined as the working treatment with the most narrow spectrum possible
Time frame: Recorded 30 days after admission/inclusion.
Frequency of errors by rapid diagnostics/errors in RADS leading to non-working treatment
Time frame: Recorded within 30 days after admission/inclusion.
Treatment duration - intravenous/per oral
Time frame: Recorded within 30 days after admission/inclusion.
Intensive care unit length of stay
Time frame: Recorded within 30 days after admission/inclusion.
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Hospital length of stay
Time frame: Recorded within 30 days after admission/inclusion.
Frequency of adherence to treatment suggestions given as RADS
Time frame: Recorded within 30 days after admission/inclusion.
Frequency of readmission for urinary tract infection within 30 days of discharge
Time frame: Recorded within 30 days after admission/inclusion.
Turnaround time of rapid diagnostic procedures compared to conventional diagnostics
Time frame: Recorded within 30 days after admission/inclusion.
Accuracy of rapid diagnostic procedures compared to conventional diagnostics
Time frame: Recorded within 30 days after admission/inclusion.