Ultrasound Guided- Chemical Rectus Sheath Block for Chronic Pain After Abdominal Midline Incision in Cancer Surgeries

September 28, 2026 updated by: Ahmed Salah Ahmed Abd Elgalil, National Cancer Institute, Egypt

Evaluation of Ultrasound Guided- Chemical Rectus Sheath Block for Chronic Pain After Abdominal Midline Incision in Cancer Surgeries: A Prospective Randomized Controlled Study

The aim of this study is to evaluate peri-operative analgesia efficacy of ultrasound guided transversalis fascia plane block in cancer patients undergoing inguinal lymph node dissection

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Inguinal lymph node dissection is the surgical removal of lymph nodes from your groin (where your legs meet your lower abdomen). Inguinal lymph node dissection is used to see if cancer has spread from certain areas (usually your penis, vulva, anus or the skin on your legs or torso), remove lymph nodes that may be cancerous or have a high chance of becoming cancerous, reduce the risk that cancer will come back in the future and help providers understand the options for treating your cancer and help you know what to expect.

Transversalis fascia plane block (TFPB) used in patients undergoing various surgeries like iliac crest bone harvesting, appendicectomy, cecostomy and inguinal hernia repair, often in combination with TAP block.

The initial description of TFPB was with patients in the supine position, with a linear array or curvilinear probe placed between the iliac crest and the costal margin. The external oblique, internal oblique and transversus abdominis muscles and the transversus aponeurosis are identified.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
90

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • American Society of Anesthesiologists (ASA) class I and II.
  • Age ≥ 18 and ≤ 65 Years.
  • Cancer patients for inguinal lymph node dissection.
  • Body mass index (BMI): > 20 kg/m2 and < 40 kg/m2.

Exclusion Criteria:

  • Patient refusal.
  • Local infection at the puncture site.
  • Coagulopathies with platelet count below 50,000 or an INR>1.6.
  • Unstable cardiovascular disease.
  • History of psychiatric and cognitive disorders.
  • Patients allergic to medication used.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Sham Comparator: Group 1

Patients will receive a sham block was performed using an equivalent volume of normal saline 0.9%.
Drug: Saline 0.9%

Patients will receive a sham block was performed using an equivalent volume of normal saline 0.9%.
Experimental: Group 2

Patients will receive ultrasound guided transversalis fascia plane block.
Drug: Transversalis fascia plane block

Patients will receive ultrasound guided transversalis fascia plane block.

Other Names:
  • 20 ml of bupivacaine 0.25%

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Degree of pain
Time Frame: 24 hours postoperatively

Each patient will be instructed about postoperative pain assessment with the numeric rating scale (NRS) score. NRS (0 represents "no pain" while 10 represents "the worst pain imaginable").
24 hours postoperatively

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Total fentanyl consumption
Time Frame: Intraoperatively

When elevation of Heart rate (HR) or mean arterial blood pressure (MAP) ≥ 20% of the baseline will be treated by fentanyl 0.5 μg / kg.
Intraoperatively
Total opioid consumption
Time Frame: 24 hours postoperatively

The patients will be observed in the postoperative care unit for 2 h, and rescue analgesia will be provided in the form of intravenous morphine 3 mg with maximum dose of 0.1 mg/kg/dose (max 0.3 mg/kg/day) boluses if the pain score >3. The total amount of morphine given in 24 h will be recorded for every patient.
24 hours postoperatively
Mean arterial pressure
Time Frame: 24 hours postoperatively

Mean arterial pressure will be recorded before injection of the local anesthetics to be defined as a baseline reading and after injection then will be recorded immediately before and after surgical incision, at 30 min intervals intraoperatively, and immediately postoperative and at 2, 4, 6, 12 and 24 h postoperatively.
24 hours postoperatively
Heart rate
Time Frame: 24 hours postoperatively

Heart rate will be recorded before injection of the local anesthetics to be defined as a baseline reading and after injection then will be recorded immediately before and after surgical incision, at 30 min intervals intraoperatively, and immediately postoperative and at 2, 4, 6, 12 and 24 h postoperatively.
24 hours postoperatively
Incidence of complications
Time Frame: 24 hours postoperatively

Incidence of complications such as hemodynamic instability, nausea, vomiting, failed block, unintentional intravascular injection of local anesthesia and local anesthetic toxicity will be recorded
24 hours postoperatively

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
National Cancer Institute, Egypt

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 28, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 28, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 2, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 28, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 04-2026-300865

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

IPD Sharing Time Frame

After the end of study for one year.

IPD Sharing Access Criteria

The data will be available upon a reasonable request from the corresponding author.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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