Guo, S., Schwab, A., McLeod, G., Corner, G., Cochran, S. , Eisma, R. and Soames, R. (2012) Echogenic regional anaesthesia needles: a comparison study in thiel cadavers. Ultrasound in Medicine and Biology, 38(4), pp. 702-707. (doi: 10.1016/j.ultrasmedbio.2012.01.001) (PMID:22390992)
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Abstract
Ultrasound guidance is now the standard procedure for regional nerve block in anesthesiology. However, ultrasonic visualisation of needle manipulation and guidance within tissues remains a problem. Two new echogenic needles (Pajunk and Braun) have been introduced to anesthesiology clinical practice but evaluation has been restricted to preserved animal tissue. In this study, the visibility of both echogenic needles was compared with a standard nonechogenic needle in a Thiel cadaver model. A total of 144 intramuscular injections were made in the upper arm in-plane and out-of-plane to the ultrasound beam at four angles (30°, 45°, 60° and 75°). The visibility of the needle was assessed by two independent, blinded observers using a 5-point Likert ordinal scale. Weighted κ for interobserver agreement was 0.77 (95% confidence interval [CI]: 0.68–0.86). The Pajunk echogenic needle was more visible than the Braun standard needle in-plane (p = 0.04), and the Braun standard and Braun echogenic needles out-of-plane (p = 0.02). Independent predictors of visibility using logistic regression were needle (p lt; 0.001) and plane of insertion (p = 0.08), receiver operator characteristic (ROC) area under the curve 0.90. In conclusion, the Pajunk echogenic needle offers the best visibility for ultrasound-guided regional anesthesia.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Cochran, Professor Sandy |
| Authors: | Guo, S., Schwab, A., McLeod, G., Corner, G., Cochran, S., Eisma, R., and Soames, R. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Ultrasound in Medicine and Biology |
| Publisher: | Elsevier |
| ISSN: | 0301-5629 |
| ISSN (Online): | 1879-291X |
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