Patient Series with Negative Pressure Wound Therapy System That Exceeds the Standard

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Abstract

Introduction:

The standard of care for NPWT systems as defined by the European Wound Management Association (EWMA) in 2017 consensus review on NPWT systems states that NPWT devices have an electronically controlled feedback system to maintain the set NPWT pressure at the wound. This standard of care is essential to ensure the prescribed pressure is accurately delivered and maintained at the wound bed but is not implemented in all currently available systems1. The purpose of this patient series was to compare two systems, the Novel NPWT System and a Common NPWT System^, who both meet the standard of care consistent with the EWMA consensus and evaluate healing outcomes.

Methods:
Wound outcomes were compiled for 10 diabetic patients with neuropathy who had lower extremity wounds being treated with either the Novel NPWT System or a Common NPWT System^. Wound types included chronic wounds and dehisced wounds post- amputation.

Results:

Wound reduction for all patients using the Novel NPWT System and a Common NPWT System^ ranged from 100% - 83% and weeks on NPWT ranged from 31 weeks to 13 weeks. The Novel NPWT System‡ time on therapy was 14 weeks compared to 18 weeks for the Common NPWT System^.

Discussion:

The Novel NPWT System and Common NPWT System^ had comparable reduction in wound volume and time on therapy. However, staff noticed that patients utilizing the Novel NPWT System routinely came to the clinic with the system powered and working. Patients commented that it was easy to comply with treatment due to the light weight of the device and simple operation. This high level of compliance to the Novel NPWT System‡ was unusual, as staff reported that patients with the Common NPWT System^ were not as compliant.

Conclusions:

The Novel NPWT System and Common NPWT System^ both meet the standard of care consistent with the EWMA consensus review. Additionally, both demonstrated comparable reductions in wound volume and time on therapy. However, the patients utilizing the Novel NPWT System had increased patient adherence to therapy and improved perceived patient satisfaction. The impact that an improved patient experience has on healing outcomes should be the focus of further investigation and additional patient data from the diabetic patient population is needed to confirm these initial results.

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