Comparison between gauze, sponge and swab using for negative pressure wound therapy in patients with chronic wound at wound center, Nakhonphanom hospital

Abstract

Objectives : To study materials in Nakhonphanom hospital, including gauze, sponge and swab which were applied for negative pressure wound therapy, in term of granulation growth, time to granulation, pain during dressing change and cost in chronic wound patients at wound center, Nakhonphanom hospital. Materials and methods : This study was therapeutic research, randomized at wound center, Nakhonphanom hospital in 63 patients with chronic wound which were managed by negative pressure wound therapy between September 2017 to March 2018. The participants were divided into 3 groups, including gauze, sponge and swab using, 21 patients in each group. General data were analyzed by one-way ANOVA and exact probability test. Granulation growth, time to granulation, pain during dressing change and cost were analyzed by multivariable regression for type of wound and medical disease adjustment. Results : After adjustment of variation of wound type and medical disease, wound dressing by gauze applied negative pressure wound therapy was the most effective method to reduced pain and cost. (p < 0.001) The average time of wound healing was 13 days. Conclusion : Gauze applied negative pressure wound therapy was the most effective method to reduced pain and cost. Sponge applied method had the shortest time of granulation but pain the most. Materials selection should depend on hospital available. More data should be collected for more information.