TY  - JOUR
T1  - Differences in fluid distribution during negative pressure wound therapy (NPWT) in a large-pored PU-foam dressing, drainage film, and a specialized NPWT dressing system
LA  - English
AU  - Wiegand, Cornelia
AU  - Springer, Steffen
AU  - Abel, Martin
AU  - Ruth, Peter
AU  - Hipler, Uta-Christina
AB  - Background: Negative pressure wound therapy (NPWT) has advanced the management of the open abdomen and other wounds. However, using the correct wound filler is essential as the material needs to convey a heterogeneous pressure distribution and create the pressure gradients required to drain interstitial fluid and remove wound exudate. This study compared the differences in fluid distribution during NPWT using a large-pore PU-foam dressing (Suprasorb1 CNP foam), drainage film (Suprasorb1 CNP drainage film) and a specialized NPT dressing system (KCI ABTheraTM NPT system) in vitro.

Methods: A tissue model was prepared from gelatine, powdered milk, and tissue marking dye. Each filler/dressing was placed on a tissue model which was connected to a fluid reservoir, linked to a TRACTM Pad and sealed. The TRACTM Pad was connected to a vacuum pump set to 120 mmHg for 8 h. An infrared camera was used to record fluid transport in the dressings.

Results: All fillers/dressings exhibited a fast fluid distribution and transport during the first hour (gradients 0.97–1.31) and steady state was reached after approximately 160 min. The NPT dressing system demonstrated a distribution limited to 70%, while the PU-foam and the drainage film presented a uniform and complete dispersal of fluid.

Conclusion: The results demonstrate that using an appropriate filler/dressing can facilitate effective wound fluid transport and drainage of interstitial fluid by producing heterogeneous pressures at the wound bed.
DO  - 10.1016/j.wndm.2014.09.004
PY  - 2014
SN  - 22139095
SP  - 22
EP  - 25
JF  - Wound Medicine
KW  - Suprasorb CNP P1
ER  -