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C-section clinical evidence

The PICO System may help reduce the risk of surgical site infections (SSIs) and may help improve healing times as part of a comprehensive clinical protocol.1

In women undergoing C-sections that have any of these high risk factors that could lead to complications, the use of PICO should be considered.

  • Smokers
  • Comorbidities including diabetes, obesity, hypertension, poor vascular status, immuno-compromised
  • Lengthy surgeries
  • Emergency procedures
  • Etiology of the problem

A recent study showed effects of PICO Single Use Negative Pressure Wound Therapy System (sNPWT) use on the incidence of surgical site infections in women with BMI ≥30 kg/m² undergoing C-section

Hyldig N, et al. BJOG (2018)1

Study overview

Open-label, pragmatic randomized study at five centers in Denmark

Who participated in the study?

Pregnant woman

Pregnant women

undergoing C-section
(elective or emergency)



BMI ≥30 kg/m²

5 days

PICO sNPWT (n=432)

Could stay in place for approximately 5 days*

24 hours

Standard dressings (n=444)

Could stay in place for ≥24 hours


*PICO dressings have a wear time of up to 7 days, depending on exudate levels


31 percent lower

Wound exudate (patient reported)

Relative reduction

(22.4% for PICO sNPWT vs 32.9% for standard dressings; p=0.001)

92 patients had wound exudate with PICO sNPWT (n=410) versus 137 patients with standard dressings (n=417)

Similar results for PICO sNPWT versus standard dressings in:


Health status questionnaires

Visual Analoge Score of 83 vs 82

Key conclusions

>In pregnant women undergoing C-section with a pre-pregnancy BMI ≥30 kg/m²:

Pump illustration, arrow up

PICO sNPWT helped to significantly reduce the incidence of SSIs versus standard dressings

droplet of water, down arrow

Wound exudate was also reduced with PICO sNPWT

Application on a C-section



  1. Hyldig N, Vinter CA, Kruse M, et al. Prophylactic incisional negative pressure wound therapy reduces the risk of surgical site infection after caesarean section in obese women: A pragmatic randomised clinical trial. BJOG. 2019 Apr;126(5):628-635.

*BMI ≥ 30 (p=0.007)