Evaluating a new surgical method for reducing pain after ventral hernia repair

ISRCTN ISRCTN11379598
DOI https://doi.org/10.1186/ISRCTN11379598
Secondary identifying numbers UTN is U1111-1314-6764
Submission date
17/10/2024
Registration date
21/10/2024
Last edited
21/10/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Ventral hernia, often linked with a condition called diastasis rectus abdominis, is a common issue in general surgery. The e-TEP technique is a promising method for fixing this problem, but it can cause significant pain after surgery. This study aims to test a new pain relief method and compare it to existing ones to see which works best.

Who can participate?
Adults aged between 18 and 65 years old who have a ventral hernia associated with diastasis rectus abdominis can participate in this study.

What does the study involve?
Participants will undergo surgery using the e-TEP technique to correct their hernia. They will be randomly assigned to one of three pain relief methods: general anesthesia alone, general anesthesia with an ultrasound-guided TAP block, or general anesthesia with a TAP block guided by direct laparoscopic view. Pain levels will be measured at 2, 6, and 24 hours after surgery.

What are the possible benefits and risks of participating?
The potential benefit is finding a more effective way to manage pain after hernia surgery. However, there are risks associated with surgery and anesthesia, including pain, complications, and the usual risks of surgical procedures.

Where is the study run from?
The study is being conducted at Gafrée e Guinle University Hospital (Brazil)

When is the study starting and how long is it expected to run for?
February 2023 to March 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Daniel Mariano de Andrade at danielmarianodeandrade@gmail.com

Contact information

Dr Daniel Mariano de Andrade
Public, Scientific, Principal Investigator

Mariz e Barros Street, n 775 - Maracanã
Rio de Janeiro
20270-004
Brazil

ORCiD logoORCID ID 0009-0007-9779-3404
Phone +55 (21)98272-8272
Email daniel.andrade@ebserh.gov.br

Study information

Study designInterventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleE-TEP surgery for ventral hernias: a novel and effective approach to postoperative analgesia
Study objectivesCompare the effectiveness of direct visualization TAP block to ultra-sound guided TAP block and general anesthesia alone for pain control after ventral hernia and diastasis rectus abdominis correction surgery using laparoscopic e-TEP, as well as their administration times.
Ethics approval(s)

Approved 28/02/2023, Research Ethics Committee of the Gaffréé e Guinle University Hospital (Mariz e Barros Street, n 775 - Maracanã, Rio de Janeiro, 20270-004, Brazil; +55 (21)97246-8917; cep.hugg@unirio.br), ref: Version 2; CAAE: 66449322.4.0000.5258; Project Approval Number: 5.915.842

Health condition(s) or problem(s) studiedStudy of the effectiveness provided by Direct Visualization TAP Block analgesia in patients submitted to Diastasis Rectus Abdominis (DRA) associated with Ventral Hernia (VH) correction surgery.
InterventionA total of 30 patients, aged between 18 and 65 years, were selected to undergo surgery to correct Diastasis Rectus Abdominis associated Ventral Hernia using the laparoscopic e-TEP technique. The patients were randomly divided into three groups based on the analgesia protocol: direct visualization TAP Block, ultrasound-guided TAP Block, and general anesthesia alone. The randomization technique used was alternate allocation, ensuring an equal number of patients in each group.

The duration of the treatment was the time spent in performing the surgeries (156 - 218 minutes on average per surgery) and Local Anesthetic administration (1 minute and 53 seconds on average), since it was an on time intervention.

The follow-up of the 3 arms studied was 1 year in duration.
Intervention typeProcedure/Surgery
Primary outcome measurePostoperative pain was assessed at 2h, 6h and 24h post-surgery, by direct verbal questioning, using the numeric rating scale, from 0 (no pain) to 10 (worst imaginable pain)
Secondary outcome measuresLocal anesthetic administration time was also ascertained at 2h, 6h and 24h post-surgery, comparing the GA, US-TAPB and DV-TAPB groups
Overall study start date28/02/2023
Completion date17/03/2024

Eligibility

Participant type(s)Health professional
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants30
Total final enrolment30
Key inclusion criteriaPatients, aged between 18 and 65 years old, who presented with Ventral Hernia associated with Diastasis Rectus Abdominis.
Key exclusion criteria1. Age <18 or >65 years
2. Allergy to local anesthetic
3. History of chronic pain
4. Continuous use of analgesics and corticosteroids
5. Presence of sensory peripheral neuropathies
6. Glycated hemoglobin >6.5%
7. Body mass index (BMI) >40 kg/m²
8. Hernia and/or diastasis >8 cm
9. Surgical risk ASA >II
10. Patients who required Transversus Abdominis Release (TAR) during surgery were also excluded
Date of first enrolment28/02/2023
Date of final enrolment31/10/2023

Locations

Countries of recruitment

  • Brazil

Study participating centre

Gafrée e Guinle University Hospital - HUGG - UNIRIO
Mariz e Barros Street, n 775
Rio de Janeiro
20270-004
Brazil

Sponsor information

Gafrée e Guinle University Hospital
Hospital/treatment centre

Mariz e Barros Street, n 775 - Maracanã
Rio de Janeiro
22210-085
Brazil

Phone +55 (21)982728272
Email cep.hugg@unirio.br
Website https://www.gov.br/ebserh/pt-br/hospitais-universitarios/regiao-sudeste/hugg-unirio

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date15/11/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe datasets generated during and/or analyzed during the current study will be available upon request from Daniel Mariano de Andrade (main author)
danielmarianodeandrade@gmail.com

Editorial Notes

21/10/2024: Trial's existence confirmed by Research Ethics Committee of the Gaffréé e Guinle University Hospital.