NCT07311525

Brief Summary

The aim of this study is to compare the effect of ultrasound-guided retro-SCTL space block and EOI block on opioid consumption within 24 hours after LSG.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
90

participants targeted

Target at P50-P75 for not_applicable

Timeline
9mo left

Started Feb 2026

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress26%
Feb 2026Feb 2027

First Submitted

Initial submission to the registry

December 10, 2025

Completed
21 days until next milestone

First Posted

Study publicly available on registry

December 31, 2025

Completed
1 month until next milestone

Study Start

First participant enrolled

February 1, 2026

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2027

Last Updated

January 6, 2026

Status Verified

January 1, 2026

Enrollment Period

1 year

First QC Date

December 10, 2025

Last Update Submit

January 1, 2026

Conditions

Keywords

Sleeve GastrectomyPostoperative AnalgesiaExternal Oblique Intercostal Plane BlockRetro superior costotransverse ligament space block

Outcome Measures

Primary Outcomes (1)

  • cumulative morphine consumption within the first 24 hours.

    cumulative morphine consumption within the first 24 hours.

    24 hours post operative

Secondary Outcomes (2)

  • Visual analogue scale (VAS) score for pain

    30 minutes, 1, 3, 6, 12, 24 hours postoperatively

  • A Sedation scale

    Initial 24 hours postoperatively

Study Arms (2)

retro-SCTL block

ACTIVE COMPARATOR

Participants in the (group retro-SCTL) will receive ultrasound-guided retro-SCTL space block after intubation. Following hydrodissection with 2 ml of 0.9% saline to confirm the correct needle tip position, 20 ml 0.25% bupivacaine was injected. The same procedure was then repeated with 20 ml 0.25% bupivacaine on the contralateral side.

Procedure: ultrasound-guided Retro superior costotransverse ligament space block

EOI block

ACTIVE COMPARATOR

Participants in the (group EOI) will receive ultrasound-guided EOI block after intubation. Following hydrodissection with 2 ml of 0.9% saline to confirm the correct needle tip position, 20 ml 0.25% bupivacaine was injected. The same procedure was then repeated with 20 ml 0.25% bupivacaine on the contralateral side.

Procedure: ultrasound-guided External Oblique Intercostal Plane Block

Interventions

Participants will receive ultrasound-guided External Oblique Intercostal Plane Block after intubation.Following hydrodissection with 2 ml of 0.9% saline to confirm the correct needle tip position, 20 ml 0.25% bupivacaine was injected. The same procedure was then repeated with 20 ml 0.25% bupivacaine on the contralateral side.

EOI block

Participants will receive ultrasound-guided Retro superior costotransverse ligament space block after intubation. Following hydrodissection with 2 ml of 0.9% saline to confirm the correct needle tip position, 20 ml 0.25% bupivacaine was injected. The same procedure was then repeated with 20 ml 0.25% bupivacaine on the contralateral side.

retro-SCTL block

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged between 18 to 65 years
  • Both genders
  • American Society of Anesthesiologists (ASA) physical status I-II
  • Body mass index (BMI) \> 40 kg m-2,

You may not qualify if:

  • Obesity secondary to an endocrine disorder
  • known allergic diathesis to any drugs used in the study
  • Presence of serious systemic illness (e.g., severe cardiac, pulmonary, renal, or hepatic dysfunction),
  • Coagulation dysfunction
  • Pre-existing psychological disorders
  • Current use of analgesic or psychotropic medications
  • Infection at a potential injection site
  • Ahistory of chronic pain
  • Conversion to laparotomy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beni-Suef University hospital

Banī Suwayf, Beni Suweif Governorate, 62511, Egypt

RECRUITING

MeSH Terms

Conditions

Patient Satisfaction

Condition Hierarchy (Ancestors)

Treatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Dina M Fakhry, MD

    Beni-Suef University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Lecturer of Anesthesiology, Surgical Intensive Care and Pain Management

Study Record Dates

First Submitted

December 10, 2025

First Posted

December 31, 2025

Study Start

February 1, 2026

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

February 1, 2027

Last Updated

January 6, 2026

Record last verified: 2026-01

Locations