Scottish infection control guidelines informed by evidence on aerosol-generating procedures
Scotland is the first country in the world to use evidence gathered during the pandemic to transform its guidelines on reducing the spread of respiratory disease in health care settings. The new approach has been influenced by findings from a University of Bristol and Bristol NHS Foundation Trust study.
Scotland has become the first country globally to revise its infection control guidelines based on recent research into aerosol transmission of respiratory diseases in healthcare settings. The pioneering study, known as AERATOR, investigated whether procedures like inserting breathing tubes generate significant aerosols. Led by clinicians and scientists from Southmead Hospital and the University of Bristol, the research utilized a state-of-the-art instrument called PLUME to measure aerosol production in real-time within hospital environments.
The findings revealed that many high-risk procedures actually produce fewer aerosols than normal breathing, coughing, or talking. As a result, Public Services Delivery Scotland has introduced an updated transmission-based precautions guidance that adopts a more consistent, risk-based approach to infection prevention across NHS Boards, care homes, and other health and care settings.
This new approach shifts the focus from individual procedures to the type of respiratory infection, patient symptoms, and the health care professional's exposure and risk factors. Consequently, the term "aerosol-generating procedure" has been removed from risk assessments. The updated guidelines will lead to a significant change in the deployment of personal protective equipment (PPE) in healthcare settings.
Wales has followed Scotland's lead, implementing the same risk-based approach. Dr. Andy Shrimpton, a key researcher involved in the AERATOR study, emphasized that the findings challenged long-held assumptions about aerosol generation during medical procedures. Tony Pickering, a co-author of the study, highlighted the rapid impact of scientific evidence on national health guidance.
James Dodd, another contributor, praised the collaborative effort of specialists from various fields who contributed to the study. The AERATOR research exemplifies how interdisciplinary collaboration can translate scientific discoveries into practical improvements in patient care and infection control measures.
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