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OUTCOME OF FOAM VERSUS GAUZE DRESSINGS IN NEGATIVE PRESSURE WOUND THERAPY FOR THE MANAGEMENT OF ACUTE TRAUMATIC
J G Ondieki1, S O Khainga, F Owilla
1Department of Surgery, College of Health Sciences, University of Nairobi, Kenya.
Background:
Wounds have provided a challenge to the clinicians for centuries and this scenario persists to the 21st century. Negative pressure wound therapy (NPWT) is one of the latest additions in wound management. It has been widely adopted in developed countries with foam as the default wound dressing although it has some limitations.
Objective:
To determine the difference in outcomes between the use of gauze versus foam as wound dressing in NPWT for the management of acute traumatic wounds with soft tissue loss.
Design:
Prospective randomised comparative interventional study.
Setting:
Kenyatta National Hospital Orthopaedic and Surgical wards.
Subjects:
All patients aged above 12 years with Class III and Class IV acute traumatic wounds.
Outcome Measures:
The main outcome measure is the time taken to achieve 100% wound granulation. Comparisons were also made on the mean pain scores during dressing change and the percentage change in wound surface area.
Results:
Wounds took an average of 8.4 days in the gauze group and 8.1 days in the foam group (p = 0.698) to achieve full granulation. The percentage change in wound surface area was 5.3 versus 5.5 (P = 0.769) in the gauze and foam groups respectively. The infection rates were comparable between the two groups (28% for gauze and 23.1% for foam, p = 0.697) and there was no significant difference in the median pain scores (gauze = 4.5, foam = 4.8 with p = 0.174). However, outcomes with gauze dressing were influenced significantly by the time to application of NPWT, initial wound surface area and wound infection while with foam dressing outcomes tended to be affected less so by the above factors.
Conclusion:
In the use of NPWT for the management of acute traumatic wounds, there is no difference in terms of time to full wound granulation, change in wound surface area, wound infection and pain during dressing change whether gauze or foam is used as the wound dressing material.