External Oblique Intercostal Plane Block for Liver Transplantation Recipient

NCT ID: NCT07233083

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-22

Study Completion Date

2026-06-30

Brief Summary

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Postoperative pain management is one of the key factors in improving rehabilitation and accelerating recovery. The external oblique intercostal plane block can be used to provide abdominal wall analgesia for effective pain control in abdominal surgery.

The aim of this study is to investigate the postoperative analgesic efficacy of the external oblique intercostal plane block in liver transplant recipients.

The investigators will compare a group receiving the external oblique intercostal plane block with a control group to determine whether this block provides effective postoperative analgesia in liver transplant recipients.

Detailed Description

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Patients scheduled for liver transplantation will be separated into 2 groups: External Oblique Intercostal Plane Block Group and Control Group.

Patients in the External Oblique Intercostal Plane Block Group will be performed bilateral External Oblique Intercostal Plane Block at the end of the surgery and after skin closure and will receive patient controlled analgesia with morphine for postoperative analgesia.

Patients in the Control Group will not receive any block procedure and will receive patient controlled analgesia with morphine for postoperative analgesia.

Morphine consumption for first postoperative 48 hours, visual analog scale scores, time to need for first rescue analgesia, amount of rescue analgesic drug, incidence of postoperative nausea and vomiting, and Quality of Recovery-15 scores will be recorded.

Conditions

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Liver Transplantation Recipients of Liver Transplant Postoperative Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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External oblique intercostal plane block group

The patients in the External Oblique Intercostal Plane Block group will receive bilateral external oblique intercostal plane block and patient controlled analgesia (PCA) with morphine for postoperative analgesia.

Group Type ACTIVE_COMPARATOR

External Oblique Intercostal Plane Block

Intervention Type OTHER

External oblique intercostal plane block will be administered at the end of the surgery and after skin closure

Control Group

The patients in the Control group will not receive any regional block and will receive patient controlled analgesia (PCA) with morphine for postoperative analgesia.

Group Type SHAM_COMPARATOR

Sham Procedure

Intervention Type OTHER

Sham Block (Ultrasound probe placement without needle insertion or injection)

Interventions

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External Oblique Intercostal Plane Block

External oblique intercostal plane block will be administered at the end of the surgery and after skin closure

Intervention Type OTHER

Sham Procedure

Sham Block (Ultrasound probe placement without needle insertion or injection)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Adult patients aged 18 to 75 years
* Scheduled for elective orthotopic liver transplantation (living or deceased donor)
* J-shaped or Mercedes incision planned
* ASA physical status III-IV
* Normal or acceptable coagulation profile at the time of block application (INR ≤ 1.5, platelet count ≥ 50,000/mm³, fibrinogen ≥ 150 mg/dL)
* Able to provide written informed consent

Exclusion Criteria

* Coagulopathy at the time of block application (INR \> 1.5, platelet count \< 50,000/mm³, or fibrinogen \< 150 mg/dL)
* Known allergy or hypersensitivity to local anesthetics (amide group)
* Local infection or skin lesion at the block injection site
* Severe hemodynamic instability requiring high-dose vasopressor support
* Chronic opioid use (≥30 mg oral morphine equivalents per day for ≥30 days before surgery)
* Severe hepatic encephalopathy or cognitive impairment preventing use of PCA or pain scoring
* Emergency or re-transplantation surgery
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Istinye University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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istinye University

Istanbul, , Turkey (Türkiye)

Site Status RECRUITING

Countries

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Turkey (Türkiye)

Central Contacts

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Taylan Sahin

Role: CONTACT

+905452303111

Facility Contacts

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Taylan Sahin

Role: primary

905452303111

Other Identifiers

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anestezi 5

Identifier Type: -

Identifier Source: org_study_id

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