• Anesthesia and analgesia · Jul 2016

    The Influence of Arm Positioning on Ultrasonic Visualization of the Subclavian Vein: An Anatomical Ultrasound Study in Healthy Volunteers.

    • Meriem Sadek, Claire Roger, Sophie Bastide, Pascal Jeannes, Kamila Solecki, Audrey de Jong, Gautier Buzançais, Loubna Elotmani, Jacques Ripart, Jean Yves Lefrant, Xavier Bobbia, and Laurent Muller.
    • From the *Division of Anaesthesiology, Critical Care, Pain and Emergency Medicine, Nîmes University Hospital, Nîmes, France; †Department of Anaesthesia and Critical Care Medicine, Montpellier University Hospital - Hôpital Arnaud de Villeneuve, Montpellier, France; ‡Nîmes Faculty of Medicine, Montpellier University, Nîmes, France; §Department of Biostatistics and Clinical Epidemiology, Nîmes University Hospital, Nîmes, France; and ∥Department of Cardiology, Nîmes University Hospital, Nîmes, France.
    • Anesth. Analg. 2016 Jul 1; 123 (1): 129-32.

    AbstractWe hypothesized that placing the arm in 90° abduction, through 90° flexion and 90° external rotation, could improve ultrasound visualization of the subclavian vein. In 49 healthy volunteers, a single operator performed a view of the subclavian vein in neutral position and abduction position. A second blinded operator measured the cross-sectional area of the subclavian vein. Abduction position increased the cross-sectional area of the subclavian vein from 124 ± 46 (mean ± SD) to 162 ± 58 mm (P = 0.001). An increase of the cross-sectional area of ≥50% was observed in 41% volunteers (95% confidence interval, 27%-56%, n = 20); this technique offers an alternative approach (maybe safer) for ultrasound-guided catheterization of the subclavian vein.

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