“Inferior Vena Cava (IVC) Diameters Before & After Interscalene Block”
The purpose of this study is to understand how changes to breathing patterns in the chest affect blood flow to the heart from the inferior vena cava in the abdomen. Ultrasound of the upper abdomen will be used to visualize changes in breathing patterns in the chest and blood flow in the abdomen.
Procedure - Interscalene Brachial Plexus Block
Analgesic nerve block as part of routine care with pre- and post-block ultrasonographic imaging of the diaphragm and inferior vena cava
Evaluating the Mechanism of Changes to Inferior Vena Cava Diameter Using Point of Care Ultrasound in Patients Undergoing Interscalene Brachial Plexus Block