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Humming Is as Effective as Valsalva’s Maneuver and Trendelenburg’s Position for Ultrasonographic Visualization of the Jugular Venous System and Common Femoral Veins by Matthew R. Lewin; John Stein; Ralph Wang; Marsha M. Lee; Martin Kernberg; Milana Boukhman; In-Hei Hahn; Resa E. Lewiss is a Medicine article available to read on EtoBox.

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## Study objective: The purpose of this study is to compare ultrasonographic visualization of the jugular and common femoral veins by using a novel technique (humming) and 2 conventional techniques (valsalva's maneuver and trendelenburg's position). the valsalva's maneuver and trendelenburg's position are common methods for producing venous distention, aiding ultrasonographically guided identification and cannulation of the jugular and common femoral veins. we hypothesize that humming is as effective as either valsalva's maneuver or trendelenburg's position for distention and ultrasonographic visualization of these procedurally important blood vessels. herein, we investigate a new method of venous distension that may aid in the placement of central venous catheters by ultrasonographic guidance. ## Methods: Healthy, normal volunteers aged 28 to 67 years were enrolled. each subject's internal jugular, external jugular, and common femoral veins were measured in cross-section by ultrasonograph during rest (baseline), humming, valsalva's maneuver, and trendelenburg's position. three measurements were recorded per observation in each position. subjects were used as their own controls, an

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Author

Matthew R. Lewin; John Stein; Ralph Wang; Marsha M. Lee; Martin Kernberg; Milana Boukhman; In-Hei Hahn; Resa E. Lewiss

Publisher

Elsevier Science; Elsevier ; Mosby Inc.; Elsevier BV (ISSN 1097-6760)

Published

2007

Language

EN

Field

Medicine (Health Sciences)