ClinicalTrials.gg
CompletedNCT03293862Updated Apr 17, 2019

Prevention of Fascial Dehiscence With Prophylactic Onlay Mesh in Emergency Laparotomies

An interventional study of prophylactic polypropilene mesh and Midline Fascial Closure in Surgical Wound Dehiscence, sponsored by University of Sao Paulo General Hospital. Completed at 1 site in Brazil. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-04-17.

Sponsored by University of Sao Paulo General Hospital · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Jun 2015, registered Sep 2017).

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Not applicable
Study type
Interventional
Enrollment
145
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Facial dehiscence elicit high morbidity and mortality. This complication may arise in more than 8.5% of high-risk patients. Addressing risk factors and optimizing surgical technique are guarded as mainstay measures for prevention, but their efficacy is questionable. The aim of this study is to analyze the influence of using a polypropylene onlay prophylactic mesh on the incidence of fascial dehiscence in emergency surgery and associated complications.

Read the detailed description

Fascial dehiscence is associated with high morbidity and mortality rates. It occurs in more than 8.5% of high-risk patients. Current preventive measures described are control of risk factors and optimization of surgical technique. Despite that, the incidence of such complication remained stable in the last decades, highlighting the low efficacy of such measures. Polypropilene onlay mesh has been used to avoid incisional hernias in selected elective patients, and could be useful in the prevention of fascial dehiscence. In emergency situations, especially in contaminated and infected surgical procedures, safety and efficacy of mesh is controversial. In this study the investigators aimed to evaluate the influence of polypropilene prophylactic onlay mesh on the incidence of fascial dehiscence in high-risk patients undergoing midline emergency laparotomy. As secondary outcome, the associated morbidity, including surgical site occurence, will be analyzed. The study design will be a randomized controlled trial.

02

Conditions studied

  • Surgical Wound Dehiscence

Keywords

  • laparotomy
  • emergency surgery
  • abdominal wound dehiscence
  • prophylactic mesh
03

In context

Surgical Wound Dehiscence

48 studies on the registry are indexed under Surgical Wound Dehiscence; 14 are open to participants now.

This study's enrollment of 145 is above the median of 78 across 37 interventional studies indexed under Surgical Wound Dehiscence.

Browse Surgical Wound Dehiscence studies →

Lead sponsor

University of Sao Paulo General Hospital is the lead sponsor of 611 studies on the registry; 98 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
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

  • Emergency laparotomy by midline incision
  • High risk for abdominal wound dehiscence: Risk index** ≥ 4,0 or ≥ 2,2 in combination with at least one of the following: smoking, obesity, malnutrition or malignant neoplasia.

    • Risk index is the sum of values associated with high-risk characteristics, based in the risk score for abdominal wall dehiscence published by van Ramshorst et. al. in World Journal of Surgery, 2010 (Rotterdam risk model):

Age category (in years)

  • 40-49: 0.4
  • 50-59: 0.9
  • 60-69: 0.9
  • ≥70: 1.1

Male gender: 0.7

Chronic pulmonary disease: 0.7

Ascites: 1.5

Jaundice: 0.5

Anemia: 0.7

Emergency surgery: 0.6

Type of surgery:

  • Gallbladder/bile duct 0.7
  • Esophagus 1.5
  • Gastroduodenum 1.4
  • Small bowel 0.9
  • Large bowel 1.4
  • Vascular 1.3

Exclusion criteria

Exclusion Criteria:

  • Non-midline incisions or midline laparotomy measuring less than 1/4 the distance between the xyphoid and the pubis, including laparoscopic surgery.
  • Diagnosis of incisional hernia or presence of previous mesh on site.
  • Midline laparotomy performed in less than 30 days.
  • Pregnancy
  • Severe trauma with hemodynamic instability
  • Need for open abdomen or relaxing incisions
  • Need for re-laparotomy during the first 30 postoperative days, except cases in which an abdominal wall dehiscence was diagnosed.
  • Death during the first 30 postoperative days, except cases in which an abdominal wall dehiscence was diagnosed before the event.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
145 participants (actual)

Study arms

  • Active comparator
    Suture group

    Patients randomized to this arm will undergo midline laparotomy closure using a PDS 0 continuous suture only, without mesh, aiming a suture length to wound length ratio higher than four. Randomization occurs after fascial closure.

    Procedure: Midline Fascial Closure

  • Experimental
    Prophylactic mesh group

    Patients randomized to this arm will undergo midline laparotomy closure using a PDS 0 continuous suture aiming a suture length to wound length ratio higher than four AND further polypropilene onlay mesh. Randomization occurs after fascial closure.

    Device: prophylactic polypropilene mesh · Procedure: Midline Fascial Closure · Device: vacuum drainage system

Interventions

  • Deviceprophylactic polypropilene mesh

    Placement of onlay polypropilene prophylactic mesh after midline fascial closure.

  • ProcedureMidline Fascial Closure

    midline fascial closure using uninterrupted PDS 0 suture

  • Devicevacuum drainage system

    Placement of a subcutaneous vacuum drainage system

06

What researchers measure

Primary outcomes

  1. Fascial dehiscence incidence

    Time frame: 30 days

Secondary outcomes

  1. Surgical site occurence (SSO) incidence

    Time frame: 30 days or during hospital stay

  2. Surgical site occurrence requiring procedural intervention (SSOPI) incidence

    Time frame: 30 days or during hospital stay

  3. Operative time (minutes),

    Time frame: 30 days

  4. Hospital length of stay (days)

    Time frame: 30 days

  5. Intensive care unit length of stay (days)

    Time frame: 30 days

07

Study locations

1 site
  • Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
    São Paulo, São 05403000, Brazil
08

References and documents

Publications

  • Gomez Diaz CJ, Rebasa Cladera P, Navarro Soto S, Hidalgo Rosas JM, Luna Aufroy A, Montmany Vioque S, Corredera Cantarin C. [Validation of abdominal wound dehiscence's risk model]. Cir Esp. 2014 Feb;92(2):114-9. doi: 10.1016/j.ciresp.2012.12.008. Epub 2013 May 3. Spanish. PubMed 23648044 ↗
  • van Ramshorst GH, Nieuwenhuizen J, Hop WC, Arends P, Boom J, Jeekel J, Lange JF. Abdominal wound dehiscence in adults: development and validation of a risk model. World J Surg. 2010 Jan;34(1):20-7. doi: 10.1007/s00268-009-0277-y. PubMed 19898894 ↗
  • Lima HVG, Rasslan R, Novo FCF, Lima TMA, Damous SHB, Bernini CO, Montero EFS, Utiyama EM. Prevention of Fascial Dehiscence with Onlay Prophylactic Mesh in Emergency Laparotomy: A Randomized Clinical Trial. J Am Coll Surg. 2020 Jan;230(1):76-87. doi: 10.1016/j.jamcollsurg.2019.09.010. Epub 2019 Oct 28. PubMed 31672681 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2015 to primary completion in Mar 2017, 21 months.

Of 15 interventional studies with no phase under Surgical Wound Dehiscence, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 32. This study's 21 months is close to that.

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

Registered
Sep 20, 2017
First posted
Sep 26, 2017
StartActual
Jun 2015
Primary completionActual
Mar 2017
CompletionActual
Feb 2018
Last update
Apr 17, 2019
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 17, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03293862
Responsible party
Edivaldo Massazo Utiyama (MD, PhD, Full Professor of Surgery, University of Sao Paulo General Hospital) — Principal investigator
First posted
Sep 26, 2017
Start date
Jun 2015
Primary completion
Mar 2017
Completion
Feb 2018
Last update
Apr 17, 2019

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion