Comparing two anesthesia techniques for pain relief after kidney surgery

External Oblique Intercostal Plane Block Versus Ultrasound Guided Transversus Abdominis Plane Block for Postoperative Analgesia in Adult Patients Undergoing Open Nephrectomy

Not applicable Interventional Tanta University · NCT06452238

This study is testing which of two anesthesia techniques can provide better pain relief after kidney surgery for adults.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment40 (estimated)
Ages18 Years and up
SexAll
SponsorTanta University Academic / other
Locations1 site (Tanta, El-Gharbia)
Trial IDNCT06452238 on ClinicalTrials.gov

What this trial studies

This study aims to compare the effectiveness of the external oblique intercostal plane block (EOIPB) and the ultrasound-guided transversus abdominis plane block (TAP) for providing postoperative analgesia in adult patients undergoing open nephrectomy. Patients often experience significant pain after nephrectomy, and traditional pain management methods may not be sufficient. By evaluating these two regional anesthesia techniques, the study seeks to determine which method offers better pain relief with fewer side effects. The study will include patients aged 18 and older who meet specific health criteria and are scheduled for the surgery.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older scheduled for open nephrectomy with ASA physical status I-II.

Not a fit: Patients with bleeding disorders, skin infections at the injection site, or severe cardiovascular problems may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients undergoing open nephrectomy.

How similar studies have performed: Previous studies have shown that ultrasound-guided TAP blocks are effective for postoperative analgesia, suggesting potential success for the EOIPB approach as well.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years.
* Both sexes.
* American Society of Anesthesiology (ASA) physical status I-II.
* Scheduled for open nephrectomy.

Exclusion Criteria:

* Bleeding disorders.
* Skin lesions or infection at the site of proposed needle insertion.
* Allergy to local anesthetics.
* Neurological disorders.
* Drug abuse.
* BMI \> 30 kg/m2.
* Pregnancy.
* Diabetic neuropathy.
* Severe cardiovascular problems.

Where this trial is running

Tanta, El-Gharbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions External Oblique Intercostal Plane BlockTransversus Abdominis Plane BlockPostoperative AnalgesiaNephrectomy
Last reviewed 2026-06-13 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.