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Prophylactic incisional negative pressure wound therapy reduces the risk of surgical site infection after caesarean section in obese women: A pragmatic randomised clinical trial

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  • Nana Hyldig
  • Christina Anne Vinter
  • Marie Kruse
  • Ole Mogensen
  • Camilla Bille
  • Jens Ahm Sorensen
  • Ronald Francis Lamont
  • Chunsen Wu
  • Lene Nyhoj Heidemann
  • Mette Holm Ibsen
  • Jacob Brink Laursen
  • Per Glud Ovesen
  • Christina Rorbye
  • Mette Tanvig
  • Jan Stener Joergensen
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OBJECTIVE: To evaluate the reduction of surgical site infections by prophylactic incisional Negative Pressure Wound Therapy compared with standard postoperative dressings in obese women giving birth by caesarean section.

DESIGN: Randomised multicentre controlled trial.

SETTING: Five hospitals in Denmark.

POPULATION: Obese women (pre-pregnancy BMI ≥30kg/m2 ) undergoing elective or emergency caesarean section.

METHOD: The participants were randomly assigned to incisional Negative Pressure Wound Therapy or a standard dressing after caesarean section and analysed by intention-to-treat. Blinding was not possible due to the nature of the intervention.

MAIN OUTCOME MEASURES: The primary outcome was surgical site infection requiring antibiotic treatment within the first 30 days after surgery. Secondary outcomes included wound exudate, dehiscence, and health-related quality of life.

RESULTS: Incisional Negative Pressure Wound Therapy was applied to 432 women and 444 women had a standard dressing. Demographics were similar between groups. Surgical site infection occurred in 20 (4.6%) women treated with incisional Negative Pressure Wound Therapy and in 41 (9.2%) women treated with a standard dressing (relative risk 0.50, 95% CI 0.30-0.84; number needed to treat 22; P=0.007). The effect remained statistically significant when adjusted for BMI and other potential risk factors. Incisional Negative Pressure Wound Therapy significantly reduced wound exudate whereas no difference was found for dehiscence and quality of life between the two groups.

CONCLUSION: Prophylactic use of incisional Negative Pressure Wound Therapy reduced the risk of surgical site infection in obese women giving birth by caesarean section. This article is protected by copyright. All rights reserved.

OriginalsprogEngelsk
TidsskriftBJOG : an international journal of obstetrics and gynaecology
ISSN1470-0328
DOI
StatusUdgivet - 1 aug. 2018

ID: 54880145