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Updated: Jan 19, 2026
A Permeable Membrane Insert-Based Infection System to Study the Impact of Bacterial Toxins
Catheter-related infections: A Scandinavian observational study on the impact of a simple hygiene insertion bundle
Hulda Rosa Thorarinsdottir1,2, Mika Rockholt1,2, Bengt Klarin1,2
1Department of Intensive and Perioperative Care, Skåne University Hospital, Lund, Sweden.
Background:
Catheter-related infections (CRIs) and catheter-related bloodstream infections (CRBSIs) are among the most frequent hospital acquired infections. CRI/CRBSI studies in Scandinavian cohorts are scarce. The primary aim of this study was to investigate the CRI/CRBSI incidence and the association between potential risk factors, including the introduction of a simple hygiene insertion bundle and CRIs at a large university hospital in Sweden.
Methods:
We retrospectively included all patients aged 12 and above who received a central venous catheter (CVC) or a central dialysis catheter during a 2-year period, 1 year before and 1 year after the implementation of a simple hygiene insertion bundle. Microbiological data, including catheter tip cultures and blood cultures, were merged with CVC insertion data.
Results:
A total of 1722 catheter insertions in 1428 patients were included. CRI and CRBSI incidence were 1.86/1000 and 0.62/1000 catheter days, respectively. In a multivariable regression model, the implementation of a simple hygiene insertion bundle was the independent factor most strongly associated with significantly lower CRI-incidence (95% confidence interval [CI] of odds ratio [OR] 0.23-0.92, P = .029). Choosing multiple lumen catheters was associated with increasing CRI-incidence (95% CI of OR 1.11-2.39, P = .013).
Conclusion:
The incidence of catheter-related infections and catheter-related bloodstream infections in this Scandinavian cohort was low. The implementation of a simple hygiene insertion bundle seems to be an effective intervention for reducing catheter-related infections. The use of multiple-lumen catheters is associated with increased risk of catheter-related infections.
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