Assessing tissue impedance to improve nerve block precision
Official title: Assessing the Enhanced Precision: The Value of Impedance in Ultrasound-Guided Nerve Blocks, an Exploratory Prospective Observational Study
Run by Lebanese American University · NCT06620471 · Data updated 2026-11-12
This study is testing how the resistance of different tissues can help doctors place needles more accurately during nerve blocks to improve success rates and reduce complications.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 90 Years |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Lebanese American University Academic / other |
| Locations | 1 site (Beirut, Beirut) |
| Status | Recruiting |
| Started | June 10, 2024 |
| Main results expected | November 2026 |
| Study ends | December 2026 |
| Registry record updated | May 20, 2026 |
| Trial ID | NCT06620471 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include individuals aged 18 to 90 who require an axillary nerve block and meet specific health criteria.
✕Probably not a fit
Patients with bleeding disorders, those on anticoagulation therapy, pregnant individuals, or those with severe medical conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study evaluates how impedance varies across different tissue types during an axillary peripheral nerve block. By measuring the resistance to electrical current flow in tissues such as skin, fat, fascia, muscle, and nerve, the study aims to enhance the accuracy of needle placement. Improved precision in needle placement could lead to higher success rates for nerve blocks and a reduction in complications like intraneural or intravascular injections. The findings could provide valuable insights for clinicians performing loco-regional anesthesia.
Why it matters
Potential benefit: If successful, this study could significantly improve the success rates of axillary nerve blocks and reduce complications for patients.
How similar studies have gone: While the approach of assessing tissue impedance is innovative, similar studies have shown promise in improving nerve block techniques.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Individuals aged 18 years to 90 years old * No infection at the injection site * Patient signed the study consent form * No contraindications for nerve block * No allergies to any of the drugs used * Patient able to communicate effectively Exclusion Criteria: * Patients not meeting the inclusion criteria * Patients with bleeding disorders or undergoing anticoagulation therapy * Pregnant patients * Patients with mental incapacity * Any medical conditions posing severe risks during the procedure
Where it's running
-
Lebanese American University Rizk Hospital
Beirut, Beirut, Lebanon Recruiting
Study contacts
- Study coordinator: Assaf, M.D. anesthesiology
- Email: georges.assaf@laumcrh.com
- Phone: +961 3 970 762
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.