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Prophylactic negative pressure wound therapy to improve wound healing rates following ileostomy closure: a randomized
Thomas Tiang1, Corina Behrenbruch1,2, Jawed Noori1
1Department of Colorectal Surgery, St Vincent's Hospital Melbourne, Fitzroy, Victoria, Australia.
Background:
Reversal of ileostomy is associated with morbidity including wound infection and prolonged wound healing. Negative pressure wound therapy (NPWT) has been shown to reduce time to wound healing by secondary intention. The aim of this study was to determine whether NPWT improved wound healing rates, compared with simple wound dressings, in patients undergoing reversal of ileostomy where the skin wound is closed with a purse-string suture.
Methods:
This was a dual-centre, open-label, randomized controlled trial with two parallel intervention arms. Patients undergoing elective loop ileostomy reversal were randomized 1:1 to receive NPWT or simple wound dressings. The primary endpoint of the study was assessment of complete wound healing at day 42 post reversal of ileostomy and the secondary endpoints were patient-reported wound cosmesis using a visual analogue scale and rates of surgical site infection (SSI).
Results:
The study was conducted from June 2018 to December 2021. The trial was approved by the local ethics committee. We enrolled 40 patients, 20 in each arm. One patient in each arm was lost to follow up. Nine patients (9/19, 47.36%) in the simple dressing group had wound healing vs. 13 patients (13/19, 68.42%) in the NPWT group (P = 0.188). There was no significant difference in patient- reported wound cosmesis or SSI.
Conclusion:
There was no difference in wound healing rates when comparing NPWT to simple wound dressings at early and late time points post reversal of ileostomy, where the skin wound was closed with a purse-string suture.
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