Dissecting the Role of Alcohol Flushes in Endoscope Reprocessing...

Alcohol flushing has been a part of endoscope reprocessing for years, as it has been thought to reduce the risk of microbial outgrowth during storage. However, recent findings published in the American Journal of Infection Control have caused many to rethink this step. The study showed that while alcohol flush did prevent Pseudomonas aeruginosa outgrowth, there are a number of drawbacks to using it, including its flammability, fixative properties and potential to be a tissue irritant. In addition, the study indicated that lower concentrations of isopropyl alcohol could be used, as well as shorter drying times with forced air, to still prevent microbial outgrowth.

Experts in the field have weighed in on the implications of the study late in 2022.

Michelle Nerandzic, lead author of the study, stressed the importance of retaining the alcohol flush step in reprocessing procedures, but noted that lower concentrations of alcohol and forced air drying could be effective alternatives.

Meanwhile, Cori Ofstead, MSPH, president and CEO of Ofstead & Associates, is unconvinced of alcohol’s utility, and believes the evidence suggests that alcohol does not work as hoped.

Michelle Alfa, PhD, president of AlfaMed Consulting, stressed the importance of evaluating the effectiveness of whatever drying method is being used, and noted that the priority should be on making sure all the steps of reprocessing are working properly, not trying to remediate contaminated final rinse water.

It is clear that more research is needed in this area to determine the best way of balancing the benefits and drawbacks of alcohol flushes when it comes to endoscope reprocessing. In the meantime, endoscopy practices should evaluate the effectiveness of their drying methods and ensure that all steps of reprocessing are effective in preventing contamination.

If you are an endoscopy practice, it is essential that you evaluate the effectiveness of your drying methods and ensure that all steps of reprocessing are effective in preventing contamination. Take action today to ensure the safety of your patients and staff by actively evaluating and improving your endoscope reprocessing procedures.