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- Jason Johns, T Kyle Harrison, Lauren Steffel, Steven K Howard, T Edward Kim, Alex Kou, and Edward R Mariano.
- Department of Anesthesiology, Perioperative and Pain Medicine, VA Palo Alto Health Care System, Palo Alto, California USA; and Stanford University School of Medicine, Stanford, California USA.
- J Ultrasound Med. 2014 Dec 1;33(12):2197-200.
AbstractThe "air test" is used clinically to infer perineural catheter location and has been recently evaluated for use by experts. However, its utility for practitioners with less experience is unknown. We tested the hypothesis that the air test, when performed by a novice regional anesthesiologist, will improve assessment of perineural catheter tip position in a validated porcine-bovine model and determined the test's positive and negative predictive values, sensitivity, and specificity for a novice. In contrast to the results of the expert study, the air test did not improve the novice's assessment of perineural catheter tip location over chance.© 2013 by the American Institute of Ultrasound in Medicine.
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