An interventional study of Extended totally extraperitoneal repair and Intraperitoneal onlay mesh in Ventral Hernia and Abdominal Wall Defect, sponsored by University Hospital, Basel, Switzerland. Recruiting at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-24.
Sponsored by University Hospital, Basel, Switzerland · Not applicable, Interventional, and Treatment
This study investigates on the effect of two different operative techniques to treat abdominal wall hernias.
The goal of this clinical trial is to learn if the eTEP (Extended totally extraperitoneal repair) technique leads to a better outcome than the IPOM (Intraperitoneal onlay mesh) technique.
The main questions it aims to answer are:
Participants will:
Either be operated using the eTEP or the IPOM technique. Be followed up either in person or via email / phone call at day 1, day 7, day 14, 6 weeks, 6 months, 1, 3 and 5 years after the surgery to asses the above-stated main and some more outcomes.
230 studies on the registry are indexed under Hernia, Ventral; 45 are open to participants now.
This study's planned enrollment of 138 is above the median of 90 across 153 interventional studies indexed under Hernia, Ventral.
Browse Hernia, Ventral studies →University Hospital, Basel, Switzerland is the lead sponsor of 990 studies on the registry; 189 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion Criteria:
Criteria for participating surgeons
- Each participating surgeon has performed 20 or more laparoscopic IPOM procedures and 20 or more eTEP procedures.
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.
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.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The anterior rectus sheath is incised and the retromuscular space is entered through the rectus muscle fibres. The capnopreperitoneum is established and blunt dissection of the retromuscular space is performed. Two additional laparoscopic ports are established 8-10cm lateral to the linea alba caudally to the initial port. The medial border of the rectus sheath is incised and the preperitoneal space below the linea alba is dissected. The hernia orifice is also dissected from peritoneum and preperitoneal fatty tissue. The medial border of the right retromuscular space is then incised and blunt dissection is performed. The hernia orifice is closed with barbed suture and a synthetic mesh is placed on the posterior sheath of the dissected space (intended Mesh-defect ratio 16). The mesh is fixed non-traumatically using glubran glue or no fixation at all.
Procedure: Extended totally extraperitoneal repair
Capnoperitoneum is established through left sided subcostal Veress-Needle punction. Three laparoscopic ports are placed 8-10cm lateral to the linea alba usually on the patient's left side. The peritoneum is incised and detached from the umbilical and supraumbilical linea alba. The peritoneum including the hernia sac and preperitoneal fat is resected. The hernia orifice is then closed using a barbed suture. A coated mesh is than placed to the ventral abdominal wall covering the closed hernia orifices (intended mesh-defect-ratio: 16). The mesh is fixed with two transfacial absorbable sutures and several absorbable tackers placed in double crown technique around the hernia orifice. The capnoperitoneum is released, the trocars removed and the fascia closed with an absorbable suture. The skin is sutured with absorbable sutures.
Procedure: Intraperitoneal onlay mesh
The anterior rectus sheath is incised and the retromuscular space is entered through the rectus muscle fibres. The capnopreperitoneum is established and blunt dissection of the retromuscular space is performed. Two additional laparoscopic ports are established 8-10cm lateral to the linea alba caudally to the initial port. The medial border of the rectus sheath is incised and the preperitoneal space below the linea alba is dissected. The hernia orifice is also dissected from peritoneum and preperitoneal fatty tissue. The medial border of the right retromuscular space is then incised and blunt dissection is performed. The hernia orifice is closed with barbed suture and a synthetic mesh is placed on the posterior sheath of the dissected space (intended Mesh-defect ratio 16). The mesh is fixed non-traumatically using glubran glue or no fixation at all.
Capnoperitoneum is established through left sided subcostal Veress-Needle punction. Three laparoscopic ports are placed 8-10cm lateral to the linea alba usually on the patient's left side. The peritoneum is incised and detached from the umbilical and supraumbilical linea alba. The peritoneum including the hernia sac and preperitoneal fat is resected. The hernia orifice is then closed using a barbed suture. A coated mesh is than placed to the ventral abdominal wall covering the closed hernia orifices (intended mesh-defect-ratio: 16). The mesh is fixed with two transfacial absorbable sutures and several absorbable tackers placed in double crown technique around the hernia orifice. The capnoperitoneum is released, the trocars removed and the fascia closed with an absorbable suture. The skin is sutured with absorbable sutures.
primary outcome: pain numeric rating scale (NRS)
pain, measured on the numeric rating scale (NRS) 0 - 10 24 hours after the surgical procedure.
Time frame: 24 hours
pain outcome using the Patient-Reported Outcome Measurement Information System (PROMIS) Pain Intensity Short Form 3a
pain, measured using the Patient-Reported Outcome Measurement Information System (PROMIS) Pain Intensity Short Form 3a 24 hours after the surgical procedure
Time frame: 24 hours
pain mid-term
pain, measured on the visual analog scale (NRS) 0 - 10 and using the Patient-Reported Outcome Measurement Information System (PROMIS) Pain Intensity Short Form 3a after 7days, 14 days, 6 weeks, 6 and 12 months (NRS 0-10)
Time frame: 12 months
recurrence and reoperation
Long-term outcome at 3 and 5 years with assessment of the number of patients with clinical and / or radiological recurrences and with assessment of the number of patients who needed reoperations for either recurrences or other reasons such as mechanical bowel obstructions
Time frame: 5 years
LOS
Length of hospital stay
Time frame: 30 days
Functional recovery
Functional recovery measured using the European Quality of Life 5 Dimensions 5 Level (EQ-5D-5L) Questionnaire at 7 and 14 days, 6 weeks, 6 months, 1, 3 and 5 years. The questionnaire uses 5 questions describing the patients health \& abilities on that particular day and a visual analogue scale question (0 = worst, 100 = best) on the patients health on that particular day.
Time frame: 5 years
Adverse events
Intraoperative adverse events (Bleeding, conversion rate, injury to bowel structures) Postoperative adverse events (ileus, seroma, hematoma, Surgical site infections (SSI), pulmonary embolism) according to Clavien-Dindo Classification and scored according to the Comprehensive Complication Index (CCI) up to 30 days after surgery.
Time frame: 30 days
Quality of life (SF 12)
Quality of life using the short form-12 (SF-12) questionnaire at 7 and 14 days, 6 weeks, 6 months, 1, 3 and 5 years. The 12-item Short Form Survey (SF-12) is a general health questionnaire that was first published in 1995 as part of the Medical Outcomes Study (MOS). The SF-12 was constructed using questions drawn from each of the 8 dimensions of the MOS 36 item Short Form Survey (SF-36). Two summary scores are reported from the SF-12 - a mental component score (MCS-12) and a physical component score (PCS-12). The score ranges from 0 - 100, with a higher score indicating better physical and mental health functioning.
Time frame: 5 years
Plan to share: Undecided — IPD may be shared upon reasonable request. Only anonymised data shall be shared.
No publications or documents are linked to this record.
Started Jul 2024 (actual). Primary completion is estimated for Dec 2026, 29 months after the start.
Of 75 non-industry interventional studies with no phase under Hernia, Ventral, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 48. This study's planned 29 months is below that.
Counting every sponsor, half of 88 studies reached it within 37 months; a quarter within 19 and three quarters within 56.
How these figures are worked out, and which studies are left out of them.
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