Noncontact Low-Frequency Ultrasound Therapy

Noncontact Low-Frequency Ultrasound Therapy

UltraMIST® is a low-frequency ultrasound system that delivers ultrasound to the treatment site using a noncontact fluid such as saline. UltraMIST® is the next generation of MIST Therapy® and maintains the same mechanism of action as the MIST Therapy used in published clinical studies.

Clinical Overview

A retrospective analysis evaluated the effects of noncontact low-frequency ultrasound (NLFU) on the healing of suspected deep tissue injuries (SDTIs). Wound progression was assessed before and after treatment using three clinical characteristics: wound surface area, wound color and tissue assessment, and skin integrity.

 

If left unresolved, SDTIs may progress into full-thickness Stage 3 or Stage 4 pressure ulcers. Altering this progression is clinically important, as current standard of care alone results in favorable outcomes–defined as spontaneous resolution or progression to Stage 2 pressure ulcers–in only 22% of SDTIs.

Study Methodology

This retrospective study included 85 patients with a total of 127 suspected deep tissue injuries. Both groups received standard of care, which included repositioning schedules with assistive repositioning or turning devices, off-loading boots, and dietetic consultation.

A retrospective analysis evaluated the effects of noncontact low-frequency ultrasound (NLFU) on the healing of suspected deep tissue injuries (SDTIs). Wound progression was assessed before and after treatment using three clinical characteristics: wound surface area, wound color and tissue assessment, and skin integrity.

 

If left unresolved, SDTIs may progress into full-thickness Stage 3 or Stage 4 pressure ulcers. Altering this progression is clinically important, as current standard of care alone results in favorable outcomes–defined as spontaneous resolution or progression to Stage 2 pressure ulcers–in only 22% of SDTIs.

To evaluate healing progression, a severity scale ranging from 3 to 18 was developed, with higher scores indicating greater wound severity. Patients treated with MIST Therapy® in addition to standard of care demonstrated a reduction in wound severity, while patients receiving standard of care alone showed an increase in severity.

 

Severity score change observed in the study:

  • MIST Therapy® + standard of care: –1.45

  • Standard of care control group: +1.06

Final pressure ulcer staging at discharge demonstrated that substantially more suspected deep tissue injuries resolved spontaneously or improved to Stage 2 pressure ulcers with the addition of MIST Therapy®.

 

The treatment group also demonstrated a reduction in unstageable wounds. At discharge, 9% of wounds in the MIST Therapy® group were classified as unstageable, compared to 40% in the standard-of-care control group.

Documents and Downloads

Explore UltaMIST® resources for a deeper look into our wound care product solutions. Download the materials below to learn more.

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