Low Level Disinfection Risk

Research Studies

There are several studies that show Low Level Disinfection wipes are not as effective as automated High Level Disinfection methods.1

A recent study in a clinical setting confirmed that the LLD procedure alone is unsafe compared to using a HLD method such as UV-C that can reliably inactivate pathogens (HPV). The study stated that automated HLD method is strongly recommended to ensure patient safety. 2

LLD has been proven to be insufficient, as demonstrated by the results of a retrospective cohort study using linked national datasets from Scotland. 3

Various global guidelines recommend High Level disinfection, preferred over LLD for probes classified as semi-critical and critical probes.

  1. Bloc S1, Mercadal L, Garnier T, Komly B, Leclerc P, Morel B, Ecoffey C, Dhonneur G. (2011) Evaluation of a new disinfection method for ultrasound probes used for regional anesthesia: ultraviolet C light. J Ultrasound Med. 2011 Jun;30(6):785-8. https://www.ncbi.nlm.nih.gov/pubmed/21632992
  2. Clinical Guidelines COVID-19 in Australasian Emergency https://ace.mn/aac81
  3. Health Protection Scotland (HPS), NHS National Services Scotland (2017). NHS Scotland Risk Based Recommendations for the Decontamination of SemiInvasive Ultrasound Probes: Risk of infection following semi-invasive ultrasound procedures in Scotland, 2010 to 2016. Version 1.0.
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