ClinicalTrials.gg
CompletedNCT01637870Updated Apr 18, 2018Results posted

Negative Pressure Wound Therapy After Cesarean Delivery

An interventional study of Prevena negative pressure wound system in Major Puerperal Infection, Postpartum, Wound Complications and Wound Seroma, sponsored by Abbey Hardy-Fairbanks. Completed at 1 site in United States. Open to female participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2018-04-18.

Sponsored by Abbey Hardy-Fairbanks · Not applicable, Interventional, and Prevention

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Phase
Not applicable
Study type
Interventional
Enrollment
110
Allocation
Not applicable
Ages
18 Years to 55 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 85 studies in Wound Infection with a site in United States — 8 open to participants now, 9 under way, 2 of them phase 3. Wound Infection · United States.

Enrollment
42nd of 78
110 · median 123
Started
2012
with 5 others
No phase
35 of 85
2 open now
Registered
35th of 85
by date

Among the 85 studies in Wound Infection with a site in United States, this one is the 42nd largest by enrollment of the 78 interventional ones that give a count, is one of 6 that started in 2012, is one of 35 with no phase, and was the 35th registered.

Wound Infection

270 studies on the registry are indexed under Wound Infection; 33 are open to participants now.

Browse Wound Infection studies →

Open to participants now

8 of the 85 studies in Wound Infection with a site in United States are open now. Recruiting first, the newest first:

3 more — sign in →

All 8 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 23 Wound Infection studies recruiting now, 17 (74%) set no upper age limit and 1 (4%) stops at 75 or younger; 2 take children under 18; 2 take healthy volunteers.

This study: 18 Years to 55 Years · female · no healthy volunteers.

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02

Study summary

This study is aimed at determining whether or not the use of a wound suction device placed on the cesarean incision instead of a standard sterile dressing will decrease the prevalence of wound complications and wound infections in women at high risk for post operative complications. The study will first look at the infection and wound complication rate in women 6 months prior to the start date of the study by reviewing charts of women who have undergone a cesarean section. The study involves placing a single use, portable wound vacuum over the cesarean section incision and keeping it in place for 72h. The investigators will then compare the rates of wound infection and wound complications between these two groups.

It is our hypothesis that negative pressure wound systems will decrease the wound infection and complication rate in this high risk population.

Read the detailed description

Infectious complications have been found to be five times higher in women undergoing a cesarean delivery compared to a vaginal delivery. Known risk factors for wound complications are obesity, premature rupture of membranes, diabetes mellitus, hypertensive disorders, emergency cesarean delivery, twin delivery, chorioamnionitis, increased surgical blood loss and preeclampsia.

This study is aimed at determining whether or not the use of a suction device placed on the wound instead of a standard sterile dressing will decrease the prevalence of wound complications and wound infections in women at high risk for post operative complications. The investigators will compare the results from the participants of this study to an existing data set of historical controls who underwent cesarean delivery. The study involves placing a single use, portable negative wound pressure system kept in place while in the hospital after surgery (on average 48-72 hours) in women who meet criteria for increased risk of wound complications. The investigators will then compare the rates of wound infection and wound complications between these two groups.

03

Conditions studied

  • Major Puerperal Infection, Postpartum
  • Wound Complications
  • Wound Seroma
  • Caesarean Section Wound Separation
  • Wound Infection

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Keywords

  • Cesarean delivery
  • Postpartum infection
  • Wound complications
  • Wound seroma
  • Wound separation
  • Wound infection
  • Negative pressure
04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years old or older
  • Having a cesarean delivery
  • Has one or more of the following conditions:
  • > 30
  • Anemia
  • Preeclampsia (sever or mild)
  • Hemolysis, elevated liver enzymes and low (HELLP)
  • Urgent procedure
  • Rupture of membranes prior to surgery for > 4 hours
  • Chorioamnionitis
  • Hypertension
  • Diabetes (Gestational or pre-gestational)
  • Dense adhesive disease

Exclusion criteria

Exclusion Criteria:

  • Age \< 18 years old
  • Unable to give
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
110 participants (actual)

Study arms

  • Experimental
    Negative pressure pump

    Will have the Prevena negative pressure wound system placed at the time of surgery.

    Device: Prevena negative pressure wound system

Interventions

  • DevicePrevena negative pressure wound system

    Placement of negative pressure wound system at the time of cesarean delivery for those at increased risk for wound complication

06

What researchers measure

Primary outcomes

  1. Wound Complication Rate

    Wound infection, separation or deep infection

    Time frame: Up to 6 weeks from time of surgery

07

Results

Posted Apr 18, 2018

Participant flow

Participant flow — Overall Study
MilestoneNegative Pressure Pump
Started110
Completed110
Not completed0

Outcome measures

PrimaryWound Complication Rate

Wound infection, separation or deep infection

Time frame:
Up to 6 weeks from time of surgery
Reported as:
Number · participants
Wound Complication Rate
participantsNegative Pressure Pump
wound infection3
Endometritis1
Wound separation3
All wound complications (separation and infection)6

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Negative Pressure Pump0/110 (0%)1/110 (0.9%)0/110 (0%)
Most frequent serious events
Most frequent serious events
EventNegative Pressure Pump
Skin irritationSkin and subcutaneous tissue disorders1/110

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Negative Pressure Pump
<=18 years0
Between 18 and 65 years110
>=65 years0
Age, Continuous
Age, Continuous(years)Negative Pressure Pump
Mean30.8 ± 6.0
Sex: Female, Male
Sex: Female, Male(Participants)Negative Pressure Pump
Female110
Male0
Region of Enrollment
Region of Enrollment(participants)Negative Pressure Pump
United States110
08

Study locations

1 site
  • University of Iowa Hospitals and Clinics
    Iowa City, Iowa 52242, United States
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Aug 2012, a primary completion of Feb 2013 and a completion of Feb 2013. It does not say whether these dates are actual or estimated.

Results were first posted in Apr 2018, 5 years 2 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 6, 2012
First posted
Jul 11, 2012
Start
Aug 2012
Primary completionActual
Feb 2013
CompletionActual
Feb 2013
Results first posted
Apr 18, 2018
Last update
Apr 18, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 18, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01637870
Lead sponsor
Abbey Hardy-Fairbanks
Collaborators
Kinetic Concepts, Inc.
Responsible party
Abbey Hardy-Fairbanks (Associate Professor, University of Iowa) — Sponsor-investigator
First posted
Jul 11, 2012
Start date
Aug 2012
Primary completion
Feb 2013
Completion
Feb 2013
Results posted
Apr 18, 2018
Last update
Apr 18, 2018

Study contacts

Sara Tikkanen, MD
principal investigator · University of Iowa

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2018. You cannot join it, but the record below documents what was studied.

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