Anesthesia & Clinical Research
Open Access

Kathryn McFadden

Publications

• Research Article
  Pressures of Injection in a Cadaver Model of Peripheral Nerve Blockade
  Author(s): Scott Ross, Kelly Edwards, Kathryn McFadden, Paul E Bigeleisein and Steven L OrebaughScott Ross, Kelly Edwards, Kathryn McFadden, Paul E Bigeleisein and Steven L Orebaugh
  
  Objective: Pressure monitoring during injection has been suggested to help detect intrafascicle needle placement. We performed injections, guided by ultrasound, into the cervical nerve roots, peripheral nerves of the extremities, and perineural soft tissues of an unpreserved cadaver. We hypothesized that needle tip placement into these three sites would yield significantly different injection pressures, and that histologic analysis would allow comparison of intrafascicle vs. extrafascicle pressures of injection. Methods: Injections of 5 ml ropivacaine 0.5% were conducted at cervical roots (n=4), peripheral nerves of the extremities (n=10) and perineural soft tissues (n=9), at constant rate while monitoring pressure. Dye was instilled at the termination of the injection for histologic determination of needle position. Peak pressures and time to.. View More»
  DOI: 10.4172/2155-6148.1000445

  Abstract PDF

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