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Comparative Effects of ESP Block and EOIP Block on Postoperative Respiratory Recovery Following Liver Resection

NCT07740382 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 116

Last updated 2026-07-31

No results posted yet for this study

Summary

This study evaluates respiratory recovery as a multidimensional construct using clinically relevant and measurable parameters, including LUS, diaphragmatic excursion, oxygen requirement, and PPCs.

The investigators hypothesize that bilateral ESP block improves postoperative respiratory function compared with EOIP block following open hepatic surgery. The investigators further hypothesize that this improvement is mediated, in part, by superior analgesia.

Conditions

  • Liver Resection
  • Upper Abdominal Surgeries

Interventions

PROCEDURE

Ultrasound-guided bilateral external oblique intercostal plane (EOIP) block

Bilateral ESP block * after induction of general anesthesia and before surgical incision. * T7 or T8 transverse process, selected consistently by protocol. * high-frequency linear probe when feasible; curvilinear probe in larger habitus. In-plane cranial-to-caudal or caudal-to-cranial approach to the fascial plane deep to erector spinae muscle and superficial to the transverse process. * Injectate: 20 mL of 0.25% bupivacaine per side after negative aspiration; hydrodissection used to confirm correct plane. Bilateral EOIP block * after induction of general anesthesia and before surgical incision. * ultrasound-guided injection into the fascial plane between the external oblique muscle and the intercostal muscle/external intercostal membrane near the 6th-8th intercostal spaces on each side, following the institutional standardized approach. * Injectate: 20 mL of 0.25% bupivacaine per side Safter negative aspiration.

PROCEDURE

Ultrasound-guided bilateral erector spinae plane (ESP) block

An ultrasound-guided bilateral ESP block will be performed after induction of general anaesthesia and before surgical incision. The block will be administered at the T7 or T8 transverse process using an in-plane ultrasound-guided approach. Twenty millilitres of 0.25% bupivacaine will be injected on each side into the fascial plane deep to the erector spinae muscle and superficial to the transverse process after negative aspiration. Correct spread of local anaesthetic will be confirmed by hydrodissection.

Sponsors & Collaborators

  • National Liver Institute, Egypt

    collaborator OTHER

  • Menoufia University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2027-01-01
Completion
2027-01-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07740382 on ClinicalTrials.gov