Clinical trial Recruiting at 1 site Interventional Ages 18 and up

External oblique intercostal block versus erector spinae plane block for pain after laparoscopic radical gastrectomy

Official title: Effects of Ultrasound-guided External Oblique Intercostal Block Versus Erector Spinae Plane Block on Postoperative Pain in Laparoscopic Radical Gastrectomy

Run by General Hospital of Ningxia Medical University · NCT07396545 · Data updated 2026-11-12

This trial will see if the external oblique intercostal block relieves pain as well as the erector spinae plane block for adults having laparoscopic radical gastrectomy.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment184 (estimated)
SponsorGeneral Hospital of Ningxia Medical University
Academic / other
Locations1 site (Yinchuan, Ningxia)
StatusRecruiting
StartedMarch 12, 2026
Main results expectedFebruary 6, 2027
Study endsFebruary 9, 2027
Registry record updatedMarch 16, 2026
Trial IDNCT07396545 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged over 18 years with ASA physical status I–III who are scheduled for elective laparoscopic radical gastrectomy under general anesthesia and can provide informed consent are eligible.

Probably not a fit

Patients with chronic opioid dependence, severe renal or hepatic failure, central or peripheral nervous system disorders, allergy to local anesthetics, communication incapacity, or those expected to go to the ICU after surgery are excluded and unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This single-center, randomized non-inferiority trial compares the novel external oblique intercostal block (EOIB) with the established erector spinae plane block (ESPB) for postoperative analgesia after laparoscopic radical gastrectomy. Patients undergoing elective subtotal or total laparoscopic gastrectomy under general anesthesia are randomized to receive EOIB or ESPB and followed for postoperative pain outcomes and opioid consumption. EOIB delivers local anesthetic between the external oblique and intercostal muscles to block anterior rami and cutaneous branches of T6–T10, while ESPB targets the erector spinae plane with known variability in local anesthetic spread. The trial aims to determine whether EOIB provides pain relief that is not worse than ESPB and could offer a practical alternative for upper abdominal analgesia.

Why it matters

Potential benefit: If successful, EOIB could offer equivalent pain relief to ESPB while expanding options for regional analgesia after laparoscopic radical gastrectomy.

How similar studies have gone: Previous studies report that ESPB can reduce postoperative pain for upper abdominal surgery but shows variable spread and effect, while EOIB is a recently proposed technique with limited high-quality evidence to date.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients aged over 18 years
* Classified as ASA I-III
* Scheduled for elective laparoscopic radical gastrectomy under general anesthesia
* Voluntarily participated and provided written informed consent.

Exclusion Criteria:

* Chronic opioid dependence or prior use of analgesic medications for \>3 months;
* Inability to communicate due to severe dementia, language barriers, or terminal illness;
* History of central and/or peripheral nervous system disorders;
* Severe renal insufficiency (serum creatinine \>442 μmol/L or requiring renal replacement therapy) or severe hepatic insufficiency (Child-Pugh class C);
* Allergy to local anesthetics.
* Expected to be transferred to ICU after surgery.

Where it's running

  • General hospital of Ningxia medical university
    Yinchuan, Ningxia, China
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.