Sphygmomanometer cuffs: a potential source of infection!

Area of Science:

• Medical Microbiology
• Hospital Infection Control
• Public Health

Background:

• Sphygmomanometer blood pressure cuffs (BPCs) are frequently used in clinical settings.
• The potential for BPCs to act as reservoirs for pathogenic microorganisms is a concern for patient safety.

Purpose of the Study:

• To assess the prevalence of bacterial contamination on BPCs in a London hospital.
• To identify specific bacterial species colonizing BPCs in different hospital departments.

Main Methods:

• Prospective evaluation of 120 BPCs from 14 medical wards and outpatient clinics.
• Swabs from the inner cuff surface were cultured using standard microbiological techniques.

Main Results:

• Bacterial organisms were detected on 85% (102/120) of the assessed BPCs.
• Outpatient departments exhibited the highest contamination rate (90%).
• Coagulase-negative Staphylococcus and diphtheroids were the most prevalent species in wards and outpatient clinics, respectively.

Conclusions:

• A high percentage of BPCs are contaminated with bacteria, indicating a potential risk of healthcare-associated infections.
• Differences in bacterial flora between wards and outpatient clinics suggest varying transmission dynamics.
• Enhanced cleaning and disinfection strategies for BPCs are crucial to mitigate infection hazards.