Combination of Superior Hypogastric Plexus Block and Transversus Abdominis Plane Block in Abdominal Hysterectomies

May 19, 2026 updated by: Mohammed Said ElSharkawy, Tanta University

Analgesic Effect of Combination of Superior Hypogastric Plexus Block and Transversus Abdominis Plane Block in Abdominal Hysterectomies: A Randomized Controlled Trial

This study aims to evaluate the analgesic effect of superior hypogastric plexus block combined with transversus abdominis plane block in abdominal hysterectomies.

Study Overview

Detailed Description

Abdominal hysterectomy is a major surgery that is often associated with pronounced postsurgical pain. Inadequate postoperative analgesia can lead to postoperative complications and can delay functional recovery. Accordingly, a multimodal regimen for postoperative pain management is recommended.

The transverse abdominis plane (TAP) block is a regional block anesthetizing the nerves (T10 to L1) hence covering the lower abdominal wall.

The superior hypogastric plexus (SHP), which lies retroperitoneally in front of the L5 and S1 vertebrae, provides innervation to the pelvic viscera. The blockade of SHP is well-recognized for the management of chronic pelvic pain.

Study Type

Interventional

Enrollment (Estimated)

44

Phase

  • 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 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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥ 18 years.
  • American Society of Anesthesiology (ASA) physical status I-II.
  • Undergoing abdominal hysterectomies under general anesthesia (GA).

Exclusion Criteria:

  • History of allergies to local anesthetics.
  • Body mass index (BMI) >35 kg/m2.
  • Opioid dependency.
  • Cognitive impairment.
  • Bleeding or coagulation disorders.
  • Psychiatric and neurological disorder.
  • Local infection at the site of injection.
  • Severe heart, lung, liver, and renal dysfunction.

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: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group S
Patients will receive superior hypogastric plexus block (SHPB) using 20ml of bupivacaine 0.25%+ transverse abdominis plane (TAP) block using 20ml of bupivacaine 0.25%.
Patients will receive superior hypogastric plexus block (SHPB) using 20ml of bupivacaine 0.25%+ transverse abdominis plane (TAP) block using 20ml of bupivacaine 0.25%.
Active Comparator: Group C
Patients will receive superior hypogastric plexus block (SHPB) using 20ml of saline 0.9% (sham)+ transverse abdominis plane (TAP) block using 20ml of bupivacaine 0.25%.
Patients will receive superior hypogastric plexus block (SHPB) using 20ml of saline 0.9% (sham)+ transverse abdominis plane (TAP) block using 20ml of bupivacaine 0.25%.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to the first request for the rescue analgesia
Time Frame: 24 hours postoperatively
Time to the first request for the rescue analgesia will be recorded from the end of surgery to first dose of morphine administrated.
24 hours postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total morphine consumption
Time Frame: 24 hours postoperatively
Rescue analgesia of morphine will be given as 3 mg bolus if the numeric rating scale (NRS) > 3 to be repeated after 30 min if pain persists until the NRS < 4.
24 hours postoperatively
Degree of pain
Time Frame: 24 hours postoperatively
Each patient will be instructed about postoperative pain assessment with the numeric rating scale (NRS). NRS (0 represents "no pain" while 10 represents "the worst pain imaginable"). NRS will be assessed at post-anesthesia care unit (PACU), 2, 4, 6, 8, 12, 18, and 24 h postoperatively.
24 hours postoperatively
Incidence of adverse events
Time Frame: 24 hours postoperatively
Incidence of adverse events such as bradycardia, hypotension, nausea, vomiting, respiratory depression, pruritus, or any other complication will be recorded.
24 hours postoperatively
Quality of recovery
Time Frame: 24 hours postoperatively
The quality of recovery (QoR-15) score will be assessed 24 hours postoperatively. This tool consists of 15 questions, each scored on a 10-point scale, yielding a maximum of 150. It encompasses five domains; physical comfort (questions 1-4, 13), emotional state (questions 9, 10, 14, 15), psychological support (questions 6, 7), physical independence (questions 5, 8), and pain (questions 11, 12).
24 hours postoperatively

Collaborators and Investigators

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

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 (Estimated)

May 25, 2026

Primary Completion (Estimated)

October 1, 2026

Study Completion (Estimated)

October 1, 2026

Study Registration Dates

First Submitted

May 19, 2026

First Submitted That Met QC Criteria

May 19, 2026

First Posted (Actual)

May 26, 2026

Study Record Updates

Last Update Posted (Actual)

May 26, 2026

Last Update Submitted That Met QC Criteria

May 19, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 36265PR2/4/26

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.

Clinical Trials on Transversus Abdominis Plane Block

Clinical Trials on Superior hypogastric plexus block + Transverse abdominis plane

Subscribe