Blood flow measurements to predict nerve block success for arm surgery
Part of Blood & lymphatic, Brain & nervous system, Heart & circulation clinical trials.
This study looks at whether simple, noninvasive measurements of blood flow in your finger and arm can predict how well the numbing medicine (nerve block) works before your arm surgery for dialysis access. The goal is to make sure you get the best pain relief during the procedure.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 65 years old.
- You are having surgery on your arm to prepare a vein for dialysis (like an AV fistula).
- You do not have a bleeding disorder or take blood thinners that can't be stopped.
- You do not have an infection where the numbing medicine will be injected.
- You are not allergic to numbing medicines (local anesthetics).
- You are not taking certain blood pressure or heart medications (vasopressors or beta-blockers) and do not have severe poor blood flow in your limbs or severe obesity (BMI over 35).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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