Microorganisms on Reusable Tourniquets

NCT ID: NCT06566495

Last Updated: 2024-08-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

53 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-07-25

Study Completion Date

2024-12-31

Brief Summary

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The purpose of this study was to compare microbial contamination on the surface of reusable stasis after indefinite use, 2 weeks and 4 weeks. We investigated how the site - the operating theater and the emergency department, as well as the time of use - affects the number of organisms.

Detailed Description

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The cross-sectional study was conducted in the operating theater and emergency department of a tertiary referral hospital in Gdansk, Poland, in three part from March to April 2024. The study included reusable tourniquets used by the hospital's medical staff during vascular access generation.

After each stage of the in-hospital study, the stasis was collected and replaced with new ones. A total of 53 reusable stasis were collected in three phases of the study and were subjected to microbiological analysis at the Department of Immunobiology and Environmental Microbiology of the Medical University of Gdansk. The tourniquets were collected into disposable, sterile bags. In the first stage of the study, tourniquets were collected of indefinite use (n= 17). In the second and third stages of the study, stasis used for 14 (n=20) and 28 (n=16) days, respectively, were collected. All tourniquets were labeled and assigned to different rooms located within the surveyed wards. The trial was conducted separately, for the plastic fastener and the fabric band. The plastic parts of the tourniquets were placed in sterile glass dishes. Under laboratory conditions, the plastic parts of the stasis were cut off and placed in the dishes. Using sterile swabs soaked in 0.9% sodium chloride, the plastic was swabbed, after which the tip of the swab was cut off, placed in a tube with 0.9% sodium chloride (3ml), which was shaken in a Vortex device (30 seconds) and the obtained material was seeded on columbia Agar with 5% sheep blood. The material part of the stasis was placed in a sterile homogenization bag with the addition of 100ml of nutrient broth. The bag was then placed in a Stomacher Homogenizer for two minutes to detach the microorganisms from the porous surface of the material. The resulting homogenate was transferred in a concentrated state and diluted tenfold using 200 μl pipettes onto columbia Agar media supplemented with 5% sheep blood.200 μl of concentrated homogenate was seeded onto the quality growth media MacConkey Broth, King B Agar, CHROMagar E. coli and other coliforms. The protected material was incubated for 24 hours at 37°C, in an aerobic atmosphere. After this time, bacterial colonies were counted and counts were performed to determine the number of microorganisms on the surface of the stasis (CFU/cm2). Due to the assumptions of the experiment and the time frame, eight tourniquets were not included in the analysis. From the information obtained from the medical staff, this was due to significant soiling, making it impossible to use the tourniquets, and in a few cases the plastic fastener broke.

Conditions

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Microbial Colonization Infection, Bacterial HAI Nurse's Role Vascular Access Device Complications Vascular Access Complication CRBSI - Catheter Related Bloodstream Infection Catheter Infection Device Colonisation

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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reusable tourniquets used by indefinite time

6 tourniquets from emergency department and 11 tourniquets from operating theatre

collection of microbiological material from reusable tourniquets

Intervention Type DEVICE

Microbiological analysis

The material was collected in each group in the same way.

reusable tourniquets used by 14 days

6 tourniquets from emergency department and 14 tourniquets from operating theatre

collection of microbiological material from reusable tourniquets

Intervention Type DEVICE

Microbiological analysis

The material was collected in each group in the same way.

reusable tourniquets used by 28 days

6 tourniquets from emergency department and 10 tourniquets from operating theatre

collection of microbiological material from reusable tourniquets

Intervention Type DEVICE

Microbiological analysis

The material was collected in each group in the same way.

Interventions

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collection of microbiological material from reusable tourniquets

Microbiological analysis

The material was collected in each group in the same way.

Intervention Type DEVICE

Other Intervention Names

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sampling of microbiological material

Eligibility Criteria

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Inclusion Criteria

* reusable tourniquets used to make the vessel visible

Exclusion Criteria

* disposable tourniquets used to make the vessel visible
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University of Gdansk

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Medical Univeristy of Gdańsk

Gdansk, Dębinki Street, Poland

Site Status

Countries

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Poland

Other Identifiers

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KB/45/2024

Identifier Type: -

Identifier Source: org_study_id

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