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Transabdominal Preperitoneal Inguinal Hernia Repair

Short-term Outcome and Inflammatory Stress Response Following Transabdominal Preperitoneal Inguinal Hernia Repair (TAPP) - A Prospective, Randomized Trial Comparing Laparoscopy to the Robotic-assisted Approach

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05839587
Acronym
TAPP
Enrollment
150
Registered
2023-05-03
Start date
2022-11-11
Completion date
2025-05-31
Last updated
2026-05-14

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

Conditions

Hernia, Inguinal, Laparoscopy

Keywords

Adult, Robotic surgical procedures, Abdomen

Brief summary

The present study seeks to determine whether improved visual acuity and enhanced flexibility of the robotic platform results in a reduced surgical stress response and an improvement in indices of surgical outcome measures for simple and complex inguinal hernia repair

Detailed description

Complex inguinal hernia repair is challenging and requires both advanced skills in laparoscopic surgery and knowledge about the complex anatomy of the inguinal area. Whereas the repair of a small inguinal hernia usually is simple and straightforward, complex hernias (large inguinoscrotal and recurrent hernias) constitute a surgical challenge due to the risk of damage of the neurovascular structures in the inguinal area. It requires advanced laparoscopic skills to reduce the hernial sac in patients with large lateral hernias, where the hernial sac often extends deep into the scrotum in close vicinity to the spermatic cord and the testicular artery. This dissection is difficult with conventional laparoscopy, which may explain the risk of chronic pain, testicular hypotrophy and hernia recurrence. The aim of the study is to determine whether rTAPP of complex inguinal hernias is associated with a lower surgical stress response and a lower risk of postoperative complications compared to laparoscopic TAPP.

Interventions

PROCEDURELaparoscopic TAPP

Laparoscopic TAPP consists of four different procedures. Part 2 and 3 will be the same for both procedures and will consist of hernia reduction and preparation of the preperitoneal space where the mesh is placed (part 2), mesh placement and suturing of the peritoneum (part 3). Part 1 consists of port placement only and part 4 consists of skin closure only.

PROCEDURERobotic TAPP

Robotic TAPP consists of four different procedures. Part 2 and 3 will be the same for both procedures and will consist of hernia reduction and preparation of the preperitoneal space where the mesh is placed (part 2), mesh placement and suturing of the peritoneum (part 3). Part 1 consists of docking of the robot and port placement and part 4 consists of de-docking and skin closure

Sponsors

University of Southern Denmark
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* ASA 1- 3 * Clinical or radiologic diagnosis of inguinal hernia (unilateral, bilateral, recurrent, inguinoscrotal) * Eligible for a laparoscopic procedure * Informed concent

Exclusion criteria

* Incarcerated inguinal hernia requiring emergency surgery * Pregnancy * Patients with chronic pain due to arthritis, migraine or other illness requiring regular intake of pain relieve (paracetamol, NSAID etc) * Active cancer * History of psychiatric or additive disorder that prevent the patient from participating in the trial * Co-existing inflammatory disease * Co-existing immunological disease that requires medication of any kind

Design outcomes

Primary

MeasureTime frameDescription
Surgical stress response (CRP)CRP will be measured preoperatively at baseline, 1 day postoperatively and 3 days postoperativelyChange of serum CRP over time.

Secondary

MeasureTime frameDescription
Estimated intraoperative blood lossintraoperative (From first incision until last suture has been placed)The amount of intraoperative blood loss measured in mL, estimated by the primary surgeon
Intraoperative need of blood transfusionintraoperative (From first incision until last suture has been placed)The amount of blood transfused during surgery measured in mL
Length of hospital stayUp to 3 monthsThe number of days patients spend in the hospital following the procedure.
Hernia defect sizeDuring surgeryThe area of the hernial defect in cm2 measured at 8 mmHg
Total surgical timeDuring surgeryThe procedure will be divided into 4 parts. Part 1 will be different for the 2 procedures. In rTAPP it will consist of docking of the robot and port placement while it only will consist of port placement in TAPP. Part 2 and 3 will be the same for both procedures and will consist of hernia reduction and preparation of the preperitoneal space where the mesh is placed (part 2), mesh placement and suturing of the peritoneum (part 3). Part 4 will also be different for the 2 procedures. In rTAPP it will consist of de-docking and skin closure while it only will consist of skin closure in TAPP. Total surgical time and each part will be measured individually in minutes and the 2 procedures will be compared
Postoperative complicationsFrom surgery until 6 months postoperativelyClassified into grades (I-V) according to the Clavien-Dindo classification
Life-qualityFrom inclusion until 6 months postoperativelyAccording to the EUropean Registry for Abdominal wall HerniaS Quality Of Life questionnaire (Eura-HS QoL). The total score ranges from 0 (best quality of life) to 90 (worst quality of life)
Sexual dysfunctionFrom inclusion until 6 months postoperativelyAccording to the Sexual Inguinal Hernia Questionnaire (SexIHQ) a 1-page, 8-question questionnaire including visual analogue scales and tick-boxes used to asses sexual dysfunction following inguinal hernia repair
Surgical stress response (IL1-β)IL1-β will be measured preoperatively at baseline, 30 minutes after extubation and 120 minutes after extubationThe change of serum IL1-β over time.
Surgical stress response (IL-6)IL-6 will be measured preoperatively at baseline, 30 minutes after extubation and 120 minutes after extubationThe change of serum IL-6 over time.
Surgical stress response (IL-8)IL-8 will be measured preoperatively at baseline, 30 minutes after extubation and 120 minutes after extubationThe change of serum IL-8 over time.
Surgical stress response (IL-10)IL-10 will be measured preoperatively at baseline, 30 minutes after extubation and 120 minutes after extubationThe change of serum IL-10 over time.
Surgical stress response (TNF-α)TNF-α will be measured preoperatively at baseline, 30 minutes after extubation and 120 minutes after extubationThe change of serum TNF-α over time.

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 15, 2026