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Interferential therapy machines as possible vehicles for cross-infection
1Department of Clinical Microbiology, Queen Elizabeth Hospital, Edgbaston, Birmingham, B15 2TH, UK.
The Journal of Hospital Infection
|January 14, 2000
Summary
Interferential therapy machines can transfer skin microbes between patients. Disinfecting machine parts with 70% isopropyl alcohol after each use is recommended to prevent cross-contamination.
Area of Science:
- Medical Devices
- Infection Control
- Dermatology
Background:
- Interferential therapy is a common treatment for musculoskeletal issues.
- The use of shared equipment raises concerns about pathogen transmission.
- Current disinfection protocols for interferential therapy machines require evaluation.
Purpose of the Study:
- To investigate the potential for interferential therapy machines to transfer skin microflora between patients.
- To assess the effectiveness of existing disinfection procedures for these machines.
Main Methods:
- Laboratory and clinical studies were conducted.
- Microbial transfer was monitored during interferential treatment involving direct electrode application to the skin.
- Efficacy of disinfection was evaluated.
Main Results:
- Interferential therapy treatment facilitated the transfer of micro-organisms from one patient's skin to another.
- The study confirmed microbial transmission in both controlled and real-world settings.
- Existing disinfection methods were found to be potentially insufficient.
Conclusions:
- Interferential therapy machines pose a risk of transmitting skin microflora between patients.
- Routine disinfection of suction cups and sponges with 70% isopropyl alcohol after each patient treatment is advised.
- Consideration of disposable electrodes may further reduce the risk of cross-infection.