(CS-033) The Use of Pure Hypochlorous Acid (pHA) Preserved Cleansing Solution with the Low Frequency Ultrasound Technology in Maintenance Debridement and Wound Healing

The use of pure hypochlorous acid based wound cleansing solution is now accepted practice in removal of germs and necrotic tissue, and this practice is evidence based. Similarly evidence based in the use of low frequency ultrasound in the maintenance of the wound bed, in keeping it free of adherent germs and necrotic tissue. We describe here the synergistic use of these two technologies, as a fluid, usually saline, is used for low energy ultrasound therapy.


Methods:

 As we are frequent users of both technologies, we chose a convenience sample of 6 patients whose wounds were ideally treatable with low frequency non-contact ultrasound. We monitored patient experience, and the wound health over the time the patients were treated with this combination therapy (Low frequency non-contact ultrasound + pure hypochlorous acid), with the ultrasound energy carrying fluid being the pure hypochlorous acid solution. 

There were several different wound etiologies- deep tissue pressure injury from a medical device, acute radiation injury, and threatened flaps after breast reconstruction. 


Results:

We found that the patients were very comfortable with this new way of the use of low frequency non-contact ultrasound technology to stimulate angiogenesis and promote wound healing. The wound response, over time, is shown in the descriptions and images in the Results section. Anecdotally, patient’s reported improved pain immediately after the treatment when compared to the use of saline.  The patients used a numerical rating scale (NRS).


Discussion:

Though not comparative in scope, this small study shows that the use of the low frequency non-contact ultrasound is compatible with the use of pure hypochlorous acid solution wound cleanser.  Larger studies are required in this area.