In vitro evaluation of a hybrid negative pressure system for wound therapy.

Autor: Davey JS; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia.; School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, New South Wales, Australia., Chong WL; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia., Fountain J; School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, New South Wales, Australia., Heller J; School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, New South Wales, Australia., Sul R; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia., Jermyn K; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia., Michelsen J; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia., Ho Eckart L; Animal Referral Hospital Canberra, Pialligo, Australian Capital Territory, Australia.
Jazyk: angličtina
Zdroj: Veterinary surgery : VS [Vet Surg] 2024 Aug; Vol. 53 (6), pp. 1093-1101. Date of Electronic Publication: 2024 May 15.
DOI: 10.1111/vsu.14101
Abstrakt: Objective: The objective of this study was to assess whether negative pressure could be maintained accurately and repeatably with a wall-suction-based hybrid negative pressure wound therapy (h-NPWT) system by comparing it with a commercial negative pressure wound therapy (NPWT) device.
Study Design: In vitro experimental study.
Methods: A commercial NPWT device (control) and three h-NPWT devices, with 0, 3, and 6 meters of additional tubing using the hospital-wall suction (groups 1, 2, and 3 respectively), were applied sequentially to a commercial NPWT dressing on a silicone skin substrate and set to run at a continuous pressure of -125 mmHg. The pressure within the wound space was monitored at 10 second intervals for 24 h. The process was repeated five times for each group.
Results: The commercial NPWT device produced an average pressure variance of 3.02 mmHg, and the h-NPWT produced average variances of 4.38, 4.24 and 4.20 mmHg for groups 1, 2 and 3, respectively. All groups produced an average pressure within 0.15 mmHg of -125 mmHg over the 24-hour period, and the h-NPWT systems produced the smallest range with all values remaining within a ±5% variation from -125 mmHg.
Conclusion: The h-NPWT system achieved negative pressures that were comparable to those of a commercial control NPWT device. The addition of tubing between the skin substrate and the canister did not affect the pressure applied at the wound site.
Clinical Significance: The h-NPWT device tested in this study can be considered as an alternative for negative wound therapy when a commercial device cannot be used.
(© 2024 The Authors. Veterinary Surgery published by Wiley Periodicals LLC on behalf of American College of Veterinary Surgeons.)
Databáze: MEDLINE
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