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  • Title: A pilot randomised controlled trial comparing reactive air and active alternating pressure mattresses in the prevention and treatment of pressure ulcers among medical ICU patients.
    Author: Malbrain M, Hendriks B, Wijnands P, Denie D, Jans A, Vanpellicom J, De Keulenaer B.
    Journal: J Tissue Viability; 2010 Feb; 19(1):7-15. PubMed ID: 20079647.
    Abstract:
    BACKGROUND: Data on the prevention and treatment of pressure ulcers (PU's) among ICU patients is sparse. OBJECTIVE: To compare PU outcomes in medial ICU patients nursed on either a reactive mattress overlay (ROHO, ROHO Inc, Belleville, IL, USA) or an active alternating pressure mattress (NIMBUS3, ArjoHuntleigh, Luton Bedfordshire, UK). DESIGN: Pilot prospective single blind randomised controlled clinical trial. INTERVENTION: Two types of pressure redistributing mattress. PATIENTS: Two groups of eight patients. METHODS: Patients included in the study were those at high risk (Norton scale <8) or with a PU on admission. RESULTS: The two groups had similar patient characteristics. However, the NIMBUS 3 group presented with more ulcers per patient on admission (62.5%) and more severe ulcers (20% category 3) while four patients (50%) presented with a single superficial ulcer in the ROHO group. HEALING: The progress of the ulcers showed significant decreases in PU surface area (p=0.05), total PUSH tool score (p=0.01) in the NIMBUS 3 group compared to the ROHO group. In the NIMBUS 3 group 82% of the ulcers improved versus none in the ROHO group (p=0.002) and 18% remained stable versus 33%. None of the ulcers deteriorated in the NIMBUS 3 group versus 67% in the ROHO group (p=0.006). Full thickness wounds (Category 3) were present in 22% of the NIMBUS 3 group versus 0% of the ROHO group on admission and in 0% versus 66.7% (p=0.008) respectively at the end of the pilot study. PREVENTION: Non-blanching erythema occurred equally in both arms at baseline; skin remained intact for the NIMBUS 3 group while 50% in the ROHO group worsened with superficial tissue loss. CONCLUSION: This small pilot study suggests that 'active' alternating therapy is a useful adjunct in the care of highly vulnerable patients, while the outcomes may be less favourable when using 'reactive', constant low pressure devices.
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