The Disposition of Radiocontrast in the Interscalene Space in Healthy Volunteers. (May 2015)

• Record Type: Journal Article
• Authors: Gautier, Philippe; Vandepitte, Catherine; Schaub, Isabelle; Fourneau, Kristof; Kuroda, Maxine M.; De Merlier, Yvan; Hadzic, Admir
• Is Part Of: Anesthesia & analgesia. Volume 120:Number 5(2015)
• Publication Date: 2015-05
• Subjects: Anesthesiology -- Periodicals; Anesthesia; Anesthesiology; Analgesia; Analgesics; Anesthesiology -- Periodicals; 617.9605
• DOI: 10.1213/ANE.0000000000000649
• Languages: English
• ISSNs: 0003-2999

Abstract

Abstract : BACKGROUND: We measured the spread of radiocontrast in the interscalene space after injection under low (<15 psi) and high (>20 psi) pressures. METHODS: Nine healthy volunteers received ultrasound-guided injections of 10 mL radio-opaque NaCl 0.9% in both interscalene spaces. Spread of injectate as assessed by computed tomography scan and discomfort on injection were recorded. RESULTS: Under both opening pressure conditions, injectate contacted 3 brachial plexus roots and spilled over the surface of the anterior and/or middle scalene muscles underneath the cervical fascia. CONCLUSIONS: Regardless of injection pressure, the interscalene space was filled with 10 mL of radiocontrast injectate. Abstract : Published ahead of print March 4, 2015