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CompletedNCT06783036Updated Oct 1, 2026

Long-term Recurrence and Other Complications Requiring Surgery Following Primary Ventral Hernia Repair

An observational study in Umbilical Hernia and Epigastric Hernia, sponsored by Bispebjerg Hospital. Completed at 1 site in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-01.

Sponsored by Bispebjerg Hospital · Observational

Updated Oct 1, 2026Now CompletedEnrollment updatedGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
7,200
Ages
18 Years and older
Sex
All
01

Study summary

Nationwide, registry based cohort studies on all complications requiring surgery following primary ventral hernia repair

Read the detailed description

Cohort based on patients registered in the Danish Ventral Hernia Database. Through cross-linking at an individual level, all subsequent operations will be identified in the Danish National Patient Registry. For all potentially related reoperations, patient charts will be retrieved and manually reviewed. Furthermore cross-linkage with the Danish Civil Registration System to retrieve information on civil status. Follow up from time of operation for primary ventral hernia repair (index operation) until reoperation, death, emigration or end of follow up (December 31, 2023), whichever comes first.

02

Conditions studied

  • Umbilical Hernia
  • Epigastric Hernia

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03

In context

Hernia, Umbilical

67 studies on the registry are indexed under Hernia, Umbilical; 13 are open to participants now.

This study's enrollment of 7,200 is above the median of 118 across 25 observational studies indexed under Hernia, Umbilical.

Browse Hernia, Umbilical studies →

Lead sponsor

Bispebjerg Hospital is the lead sponsor of 289 studies on the registry; 29 are open to participants now.

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
Sampling method
Non-probability sample

Study population

Nationwide population of patients registered in the Danish Ventral Hernia Database

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

  • Operation for primary ventral hernia repair registered in Danish Ventral Hernia Database
  • Known and smoking status at time of surgery, as registered in the Danish Ventral Hernia Database

Exclusion criteria

Exclusion Criteria:

  • Hernia type misclassification (based on manual medical file review)
Terms in these criteria, in plain language(1)

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.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
7,200 participants (actual)
Patient registry
No

Groups and cohorts

  • Emergency umbilical hernia repair

    no study intervention

  • Elective umbilical hernia repair

    no study intervention

  • Emergency epigastric hernia repair

    no study intervention

  • Elective epigastric hernia repair

    no study intervention

06

What researchers measure

Primary outcomes

  1. Operation for hernia recurrence

    Time frame: Until december 31, 2023

Secondary outcomes

  1. Operation for non-recurrence complication

    Time frame: Until december 31, 2023

07

Study locations

1 site
  • Digestive Disease Center, Bispebjerg Hospital
    Copenhagen, 2400, Denmark
08

Updates

1 registry update since Sep 25, 2026
Status
Active, not recruiting→Completed
changed Oct 1, 2026
Show all 1 update
  1. Oct 1, 2026
    Active, not recruiting→Completed
    + 3 other changes: verification date, date precision and index terms

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT06783036
Responsible party
Erling Oma (Principal Investigator, Bispebjerg Hospital) — Principal investigator
First posted
Jan 20, 2025
Start date
Feb 1, 2024
Primary completion
Nov 1, 2024
Completion
Dec 31, 2025
Last update
Oct 1, 2026

Oversight

Data monitoring committee
No
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 Sep 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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