Study on Improving Precision in Ultrasound-Guided Nerve Blocks Using Impedance Measurement in Axillary, Interscalene, and Popliteal Sciatic Blocks

What this Trial Is About

This research focuses on understanding impedance across different tissue types during ultrasound-guided nerve blocks, including the axillary, interscalene, and popliteal sciatic nerve blocks. The study aims to evaluate how tissue resistance to electrical current affects nerve stimulation and visualization, which could help improve needle placement precision and reduce complications like intraneural or intravascular injections. This observational study is sponsored by Lebanese American University and will run over two years. Participants will undergo nerve blocks guided by ultrasound to measure impedance in various tissues such as skin, fat, fascia, muscle, and near nerves. The study is exploratory and does not involve any additional interventions beyond standard nerve block procedures. The focus is on collecting data on tissue impedance during these procedures to better understand its impact on nerve block accuracy. During the study, participants will be monitored while receiving these nerve blocks, with impedance measurements taken throughout the procedure. Researchers will assess the impedance levels across different tissue types during axillary, popliteal, and interscalene nerve blocks. The primary outcome is to understand impedance variation across tissues over two years. Participants safety will be monitored, and the total duration of involvement will align with the time needed for these measurements within the study period.

Assessing the Enhanced Precision: The Value of Impedance in Ultrasound-Guided Nerve Blocks (Axillary, Interscalene, Popliteal Sciatic), an Exploratory Prospective Observational Study