title: A novel approach for assessing catheter position after ultrasound-guided placement of continuous interscalene block.
abstract: The increasing use of ultrasound has allowed anesthesiologists to perform nerve blocks with a high success rate and without nerve stimulation or eliciting a paresthesia. The ability to visualize peripheral nerve catheters using ultrasound is limited. We present a novel method to confirm the position of an interscalene catheter tip using injection of agitated contrast. The described technique is simple and allows timely assessment of catheter tip position.
authors.affiliation: Department of Anesthesiology, University of Utah, Health Sciences Center, Salt Lake City, UT 84132, USA. jeff.swenson@hsc.utah.edu
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Swenson
authors.forename: Jennifer J
authors.initials: JJ
authors.lastname: Davis
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: DeCou
mesh_terms: D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage*; D001917:Brachial Plexus / Q000000981:diagnostic imaging*; D002408:Catheters, Indwelling; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging; D009407:Nerve Block / Q000379:methods*; D010147:Pain Measurement; D010149:Postoperative Pain / Q000517:prevention & control*; D012677:Sensation / Q000187:drug effects; D014463:Ultrasonography
chemical_list: D000779:Anesthetics, Local