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Study identifier: NCT06892743 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Analgesic Efficacy of Ultrasound-guided External Oblique Intercostal Plane Block Versus Posterior Transversus Abdominis Plane Block in Patients Undergoing Open Nephrectomy

Condition: Postoperative Pain  ·  Sponsor: Cairo University

PhaseNA
Planned participants56
Who can joinAll sexes, 18 Years to 70 Years
Healthy volunteersNo

About this study

Renal cell carcinoma (RCC) accounts for 2-3% of all cancers and is a common malignancy of the genitourinary tract. Open nephrectomy, performed through midline, subcostal, or flank incisions, remains a standard treatment but often results in significant postoperative pain, leading to respiratory muscle dysfunction, increased pulmonary complications, and prolonged hospital stays. Acute surgical pain arises from inflammatory responses, activation of spinal pain pathways, and muscle spasms. While postoperative pain typically improves during recovery, some patients develop chronic postsurgical pain (CPSP), lasting at least two months postoperatively. Opioids and epidural analgesia are commonly used for pain control, but their side effects and invasiveness necessitate safer, effective alternatives. Ultrasound (US)-guided peripheral nerve and field blocks have become integral to multimodal analgesia. One such technique, the \*\*external oblique intercostal plane block (EOIPB)\*\*, was introduced as a modification of fascial plane blocks, targeting anterior and lateral cutaneous nerves (T6-T10). EOIPB offers advantages over quadratus lumborum block (QLB) and erector spinae plane block (ESPB) by being performed in the supine position and providing superior midline analgesia compared to serratus intercostal plane block (SIPB). Similarly, the transversus abdominis plane (TAP) block, particularly the posterior approach, delivers analgesia from T7 to T12 by anesthetizing anterior and l…

This description comes directly from the study's public registry record.

Talk to the study team

Abeer A Mohamed  ·  01005244590  ·  abeer_ahmed@kasralainy.edu.eg

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Locations (2)

Abeer Ahmed MohamedMaadi, Cairo Governorate, EgyptCompleted
Kasr Alainy Faculty of Medicine - Cairo universityCairo, EgyptRecruiting

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Source record: clinicaltrials.gov/study/NCT06892743