Trial reportAntimicrobial resistance and infection control2025
The effect of five versus two personnel on bacterial air contamination during preparation of sterile surgical goods in the operating room: a randomised controlled trial.
Trial report in Antimicrobial resistance and infection control, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05597072 (Infection Control - Time-dependant Bacterial Air Contamination in the Operating Room), which is not on this map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Infection Control - Time-dependant Bacterial Air Contamination in the Operating Room
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Time-related changes in bacterial air contamination of sterile covered items in operating rooms: a systematic review and meta-analysis.Antimicrobial resistance and infection control · 2026Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSurgical site infection (SSI) and antimicrobial resistance are a worldwide problem affecting patient safety. It is lacking randomised controlled trials (RCT) regarding how the number of personnel in the operating room (OR) affects the air quality. We aimed to investigate the effect the number of personnel in the OR have on bacterial air contamination during the preparation of sterile surgical goods, to identify the species and antibiotic susceptibility of the bacteria isolated, and to describe the number of SSIs together with causative microorganisms.
methodsThis RCT used an intervention group in which two individuals prepared the surgical goods and a control group in which five individuals prepared the goods. Bacteria were isolated on aerobic and anaerobic plates, and bacterial growth was measured as colony forming units (CFU). All isolates were typed, and types known to cause SSI were tested for susceptibility to eight antibiotics. Data were analysed with the Mann-Whitney U test, the chi-square test, or Fisher's exact test.
resultsResults were based on 69 open-heart surgeries and 414 plates. When sterile surgical goods were prepared with two personnel, the median CFU was 2 with an IQR of 2, compared with five personnel, the median CFU was 5, with an IQR of 5 (p < 0.001). The 272 CFU represented 45 different bacterial species, with 38 species isolated in the control group and 21 in the intervention group. The most frequently isolated bacteria were Cutibacterium acnes (82/272, 30%), and Staphylococcus epidermidis (36/272, 13%). Of the 36 S. epidermidis isolates, 11 (31%) were drug-resistant, including three multidrug-resistant. One patient in the control group was infected by Staphyloccocus aureus and Staphylococcus lugdunensis, neither of which was isolated during the preparation of sterile goods. One patient in the intervention group developed an SSI caused by C. acnes, Corynebacterium kroppenstedtii, and S. epidermidis. C. acnes and S. epidermidis were isolated during the preparation.
conclusionsMinimising the number of personnel in the OR during preparation of sterile surgical goods is important to reduce the bacterial load.
trial registrationProspectively 15 May 2022 at FoU Sweden (275659) and retrospectively 22 October 2022 at ClinicalTrials.Gov (NCT05597072).
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