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NoPro - Norwegian Hernia Prophylaxis Study

NoPro - Norwegian Hernia Prophylaxis Study: Onlay Mesh Versus Small Bite Suture Technique Closure of Midline Laparotomies

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06858020
Acronym
NoPro
Enrollment
150
Registered
2025-03-05
Start date
2025-02-17
Completion date
2028-12-31
Last updated
2025-03-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Burst Abdomen, Incisional Hernia After Midline Laparotomy, Quality of Life (QOL), Surgical Site Infections

Keywords

prophylactic mesh, onlay, incisional hernia, midline laparotomy

Brief summary

A multicenter randomized controlled trial comparing midline laparotomy closures using the small-bite suture technique alone to those using the small-bite suture technique with an additional onlay prophylactic polypropylene mesh. The primary endpoint is the incidence of incisional hernias in both groups after one year.

Detailed description

An incisional hernia (IH) is a defect in the abdominal wall at the site of a surgical scar, leading to the protrusion of abdominal contents through the defect. It is a common complication following midline laparotomy, with incidence rates ranging from 9% to 40% in the general population, and up to 69% in high-risk patients. Several studies have been conducted on the prevention of IH, and one established intervention is the use of a synthetic mesh to reinforce the suture closure of the abdomen after midline laparotomy. However, the use of mesh in this context is not widespread in Norway, and there are no Norwegian studies on IH prevention following midline laparotomy. This study aims to contribute to the broader knowledge base and encourage Norwegian surgeons to consider using prophylactic meshes. The study will involve three Norwegian hospitals: Hamar Hospital, Gjøvik Hospital, and Lillehammer Hospital. Participants will be patients scheduled for midline laparotomy at these hospitals who consent to participate, meet the inclusion criteria, and do not meet any exclusion criteria. Participants will be randomly assigned to two groups, each receiving a different variation of fascia closure during laparotomy. One group will undergo closure using the standard small-bites technique only, while the other group will undergo closure with the small-bites technique in addition to an onlay polypropylene mesh. The primary outcome is the occurrence of incisional hernia one year after surgery, identified through clinical examination and CT scan. Additionally, surgical site occurrences (e.g., hematoma, infection, seroma, wound dehiscence) will be recorded four to six weeks post-surgery. Quality of life and pain levels will also be assessed at both four to six weeks and one year after surgery.

Interventions

PROCEDUREProphylactic polypropylene onlay mesh

The patients in the mesh group are closed with small bites technique and in addition receiving an onlay polypropylene mesh when closing the fascia in midline laparotomies.

Sponsors

Sykehuset Innlandet HF
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Masking description

The radiologists who interpret the CT scans after 12 months evaluating if the patient has developed an incisional hernia

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Surgery predominantly done my midline laparotomy * Age 18 years old or older * Written consent by patient/family * Midline laparotomy with delayed closure * No

Design outcomes

Primary

MeasureTime frameDescription
Incisional hernia12 monthsIncisional hernia occurrence will be evaluated clinically and by CT examination after 12 months

Secondary

MeasureTime frameDescription
Quality of Life4-6 weeks and 1 yearQuality of life will be measured preoperatively for elective patients and after 4-6 weeks and after 1 year for all patients. Quality of life will be measured using 5-level EQ-5D version (EQ-5D-5L) provided by the EuroQol group. The system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state.
Level of pain4-6 weeks and 1 yearPain level will be measured preoperatively for elective patients and after 4-6 weeks and after 1 year for all patients. The level will be measured using VAS-scale from 0 to 10 where 0 is explained as no pain and 10 is explained as the worst pain you can possibly imagine.
Symptomatic surgical site occurrence (SSO)4-6 weeksSymptomatic surgical site occurrence (SSO)when the patient it discharged and after 4-6 weeks. Surgical site occurence including seroma, hematoma, wound dehiscence and infection.

Countries

Norway

Contacts

Primary ContactGjertrud H Kjostolfsen, MD
gjertrud.hole.kjostolfsen@sykehuset-innlandet.no0047 90236405
Backup ContactJorunn Skattum, MD PhD
jorunn.skattum@sykehuset-innlandet.no0047 90236680

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026