Reusing sterile cotton fabric barriers in the clinical practice: an observational and longitudinal study.
Berendina Elsina Bouwman, Dayane de Melo Costa, Francesco Tessarolo and 1 others
PMID 37820214WHAT IT FOUND
Reusing cotton sterile barrier fields caused shrinkage, weight loss, and increased water absorption over 15 months.
However, the microbial barrier remained intact, with no significant increase in bacterial penetration compared to new fields.
Key findings
01Cotton fields used as sterile barriers showed significant physical degradation, including a 10.4% reduction in area and a 5.9% reduction in weight after 15 months of use.
02Water absorption increased significantly, rising by 792% at three months and remaining elevated through 15 months of use.
03Despite physical changes, microbial penetration did not increase significantly over time, with the German Standard Methodology test showing zero positive samples throughout the study.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was conducted in a single medium-sized hospital, which may limit generalizability to other settings or processing methods. The number of samples analyzed at each time point was small (three fields per test). The study used a specific brand and type of cotton fabric; results may not apply to other fabrics. The SEM test method was newly developed for this study and not standardized, potentially affecting comparability with other research.
Declared interests
The authors declare no conflicts of interest. The study was funded by the Federal University of Jataí and the Provincial Health Services Trust of Trento/Italy.
The easy way to misread this
Do not assume that physical integrity (no visible tears or holes) guarantees sterility in wet conditions. The study showed that while the microbial barrier held up in dry tests, the fabric's ability to repel water decreased significantly, meaning a wet field may allow microorganism passage even if it looks intact.