An observational study in Impedance, Axillary Nerve Block and Ultrasound-Guided Nerve Blocks, sponsored by Lebanese American University. Recruiting at 1 site in Lebanon. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2026-05-20.
Sponsored by Lebanese American University · Observational
Impedance can have an impact on nerve block during loco-regional anesthesia, particularly when using techniques such as nerve stimulation or ultrasound guidance to locate and block specific nerves. Impedance refers to the resistance to electrical current flow within tissue, and it can affect the ability to stimulate nerves or visualize them using ultrasound. The aim of this research is to assess the impedance across different tissue type during an axillary peripheral nerve block (skin, fat, fascia, muscle, nerve proximity). The results of this study would help clinicians performing nerve block to enhance the precision of needle placement, thus increase the success rate of nerve block and reduce adverse events such as intraneural or intravascular injections.
Lebanese American University is the lead sponsor of 16 studies on the registry; 6 are open to participants now.
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Community sample
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Assess the impedance across different type of tissue during axillary, popliteal and interscalene nerve block
Measure impedance at different locations, different tissue types and different distances from the nerve (as recorded on the nerve stimulator)
Time frame: Two years
Plan to share: Undecided
No publications or documents are linked to this record.
Started Jun 2024 (actual). Primary completion is estimated for Nov 2026, 29 months after the start.
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Lebanese American University