Transversus Abdominis Plane Block for Postoperative Analgesia in Living Donor Hepatectomy

January 5, 2016 updated by: Mehmet Ali Erdoğan, Inonu University

Ultrasound-guided Transversus Abdominis Plane Block for Postoperative Analgesia in Living Donor Hepatectomy: Randomized Controlled Double-blinded Trial

Living donor organ transplantation has increased in recent years due to an increased need for organs. The objective of this study was to investigate the effects of a TAP block on postoperative analgesia and opioid consumption in liver transplantation donors in whom a right lateral extending upper mid-line abdominal incision was used.

Study Overview

Detailed Description

This prospective randomized controlled double-blinded study was conducted with 50 liver transplantation donors between 18-65 years who were scheduled to undergo right hepatectomy surgery. Cases to whom TAP block with ultrasound was applied after standard general anesthesia were determined as Group 1 and cases to whom only standard general anesthesia was applied, were determined as Group 2.

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Phase 4

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

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Liver transplantation donors

Exclusion Criteria:

  • Patients with a history of allergy to the drugs used in the study protocol, coagulation pathology, opioid tolerance

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
Active Comparator: transversus abdominis plane block

Patients who received a tranversus abdominis plane block with ultrasound after standard general anesthesia represented Group 1.

The tranversus abdominis plane block was performed bilaterally by obtaining an image with real time ultrasound guidance with a 6-13 MHz linear probe.

The block was placed with a 22 G 80 mm needle while obtaining real-time images via an in-plane technique.

Two 20 mL syringes were prepared after preparing a local anesthetic concentration of 1.5 mg/kg of 0.5% bupivacaine to 40 mL with saline. These were administered to the left and right abdominal walls.

Postoperative analgesia was administered through a morphine the patient-controlled analgesia device.

Cases to whom used bupivacaine with ultrasound guided transversus abdominis plane block was applied after standard general anesthesia were determined as Group 1
Other Names:
  • Marcaine plain+morphine
Placebo Comparator: nonblocked
Patients who received standard general anesthesia alone made up Group 2. Postoperative analgesia was administered through a morphine the patient-controlled analgesia device.
Cases to whom applied alone standard general anesthesia were determined as Group 2
Other Names:
  • morphine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
pain scores (at movement and at rest)
Time Frame: postoperatively at 24 hours
Pain scores were assessed using a visual analog scale (0: No pain, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10: Excruciating pain).
postoperatively at 24 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
morphine consumption
Time Frame: postoperatively at 24 hours
morphine consumption were measured in postoperatively 24 hours
postoperatively at 24 hours

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Mehmet Ali Erdogan, Inonu University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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

May 1, 2015

Primary Completion (Actual)

October 1, 2015

Study Completion (Actual)

October 1, 2015

Study Registration Dates

First Submitted

December 24, 2015

First Submitted That Met QC Criteria

December 31, 2015

First Posted (Estimate)

January 5, 2016

Study Record Updates

Last Update Posted (Estimate)

January 6, 2016

Last Update Submitted That Met QC Criteria

January 5, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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