Are ECG Welsh cup electrodes effectively cleaned?
Re-usable Welsh electrocardiograph (ECG)-electrodes are potential vehicles for cross infection. This study confirmed that in-use ECG-electrodes are frequently contaminated with organisms such as coagulase-negative staphylococci and Gram-negative bacilli. The efficacy of five cleaning procedures was evaluated. Immersing the electrodes in water at 60 degrees C for one hour was the most effective method of decontamination tested, following challenge with a standardised suspension of Staphylococcus saprophyticus. Significant contamination persisted following simple cleaning measures. It is suggested that this was promoted by the inadequate removal of electrode gel which provided a protective environment for microorganisms.
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Department of Clinical Microbiology, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
Hale
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Elliott
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D002710:Chlorhexidine / Q000494:pharmacology; D003030:Coagulase / Q000032:analysis; D003428:Cross Infection / Q000209:etiology; D004562:Electrocardiography / Q000009:adverse effects / Q000295:instrumentation*; D004566:Electrodes; D004866:Equipment Contamination; D005260:Female; D005782:Gels / Q000009:adverse effects; D006090:Gram-Negative Bacteria / Q000032:analysis; D006801:Humans; D008297:Male; D013210:Staphylococcus / Q000032:analysis; D013242:Sterilization / Q000379:methods*
D003030:Coagulase; D005782:Gels; D002710:Chlorhexidine