Modified External Oblique Intercostal Plane Block Versus Erector Spinae Plane Block for Open Nephrectomy
Comparison of Modified External Oblique Intercostal Plane Block and Erector Spinae Plane Block for Postoperative Analgesia in Patients Undergoing Open Nephrectomy: A Prospective Randomized Controlled Trial
- Postoperative Pain
- Open Nephrectomy
At a glance
- Phase
- Phase not stated
- Study type
- Interventional
- Sponsor
- Namik Kemal University
- Enrolment target
- 60
- Started
- 1 August 2026
- Main results due
- 1 February 2027
- Study sites
- 1
- Registry updated
- 25 September 2026
Can you take part?
- Ages 18 years to 65 years.
- Open to any sex.
- You need the condition being studied — healthy volunteers are not accepted.
These are the headline rules only. Every study has a longer list, and whether you are eligible is decided by the research team at the site — never by this page.
Read the full eligibility criteria
Inclusion Criteria: * Age between 18 and 65 years. * American Society of Anesthesiologists (ASA) physical status I or II. * Scheduled for elective open nephrectomy. * Able and willing to provide written informed consent. * Willing to comply with study procedures. Exclusion Criteria: * Refusal to participate or inability to provide informed consent. * Emergency surgery. * Body mass index (BMI) greater than 35 kg/m². * Known allergy or hypersensitivity to local anesthetics. * Infection at the planned block insertion site. * Coagulopathy or ongoing anticoagulant therapy. * Pregnancy or breastfeeding. * Prisoners or other vulnerable populations unable to provide independent consent.
What this study is about
In the sponsor’s own words, from the registry.
This prospective, randomized, assessor-blinded clinical trial aims to compare the postoperative analgesic efficacy of ultrasound-guided Erector Spinae Plane Block (ESPB) and Modified External Oblique Intercostal Plane Block (EOIPB) in patients undergoing elective open nephrectomy under general anesthesia. Sixty adult patients will be randomized to receive either ESPB or EOIPB before surgical incision. All participants will receive standardized general anesthesia and postoperative multimodal analgesia. Postoperative pain scores, opioid consumption, rescue analgesic requirements, and postoperative nausea and vomiting will be assessed during the first 24 hours after surgery. The study aims to determine whether one fascial plane block technique provides superior postoperative pain control and recovery following open nephrectomy.
Study sites(1)
Tekirdağ Namık Kemal University
Tekirdağ, Tekirdağ, Turkey (Türkiye)
Recruiting
Showing 1 of 1 sites. 1 of the 1 site on this study is recruiting right now — a site can stop enrolling while the study as a whole is still open.
Source: ClinicalTrials.gov record NCT07726550. Trialion does not run this study, is not paid to refer anyone to it, and cannot enrol you. Eligibility is always decided by the research team at the site.
Not the right study?
Answer three questions and see the studies recruiting near you, in plain language.
Find a study for me