2011
DOI: 10.3174/ajnr.a2319
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CT-Guided Injection of the Anterior and Middle Scalene Muscles: Technique and Complications

Abstract: BACKGROUND AND PURPOSE:Anterior scalene block is a helpful diagnostic test for NTOS and a good predictor of surgical outcome. The purpose of this study was to describe the technique, success rate, and complications associated with CT-guided anesthetic and botulinum toxin injection of the ASM/ MSM in patients with NTOS symptoms.

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Cited by 20 publications
(23 citation statements)
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“…However, some have postulated that even this precision may not address the limitations of the test itself [4]. Current data indicate that CT guidance minimizes the rate of unwanted complications such as Horner's sign, dysphonia, brachial plexus block, and dysphagia compared to other localization techniques for scalene injections [20].…”
Section: Diagnostic Anterior Scalene Blockmentioning
confidence: 98%
“…However, some have postulated that even this precision may not address the limitations of the test itself [4]. Current data indicate that CT guidance minimizes the rate of unwanted complications such as Horner's sign, dysphonia, brachial plexus block, and dysphagia compared to other localization techniques for scalene injections [20].…”
Section: Diagnostic Anterior Scalene Blockmentioning
confidence: 98%
“…Mashayekh et al reported on 106 patients undergoing 146 scalene injections using CT guidance. In all cases, needle tip localization was satisfactory [42]. No major complications occurred, although 11% reported minor complications such as needle site pain, temporary brachial plexus block, undesired muscle weakness, dysphagia and Horner sign.…”
Section: The Role Of Imaging In Diagnosis Of Ntosmentioning
confidence: 99%
“…Deshalb ist die exakte Positionierung der Injektionsnadel relevant, um den maximalen Wirkstoffeffekt bei minimalen Nebenwirkungen mit einer möglichst geringen Dosis zu erzielen. Neben der konventionellen Methode der Nadelpositionierung mittels klinischer Inspektion, Palpation des Zielmuskels und Orientierung an anatomischen Landmarken werden elektromyografische und, teils invasive, bildgebende Verfahren (CT, Fluoroskopie) zur exakten Injektion eingesetzt [9][10][11][12]. Das Für und Wider dieser Verfahren im Vergleich zum US wurde hier in bereits einer früheren Übersicht ausführlich dargestellt [13].…”
Section: Introductionunclassified