Esophageal function testing

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Presentation transcript:

Esophageal function testing Amy Wang, MD, Douglas K. Pleskow, MD, Subhas Banerjee, MD, Bradley A. Barth, MD, Yasser M. Bhat, MD, David J. Desilets, MD, PhD, Klaus T. Gottlieb, MD, MBA, John T. Maple, DO, Patrick R. Pfau, MD, Uzma D. Siddiqui, MD, Jeffrey L. Tokar, MD, Louis-Michel Wong Kee Song, MD, Sarah A. Rodriguez, MD Gastrointestinal Endoscopy Volume 76, Issue 2, Pages 231-243 (August 2012) DOI: 10.1016/j.gie.2012.02.022 Copyright © 2012 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 1 Cross-sectional and longitudinal view of a water-perfusion catheter. Gastrointestinal Endoscopy 2012 76, 231-243DOI: (10.1016/j.gie.2012.02.022) Copyright © 2012 American Society for Gastrointestinal Endoscopy Terms and Conditions

Figure 2 High-resolution manometry and impedance study. This is a single, normal swallow. Color bar along the left side shows that red depicts higher pressure contraction and blue is low pressure. Liquid swallow is propagated normally from proximal (upper esophageal sphincter [UES]) to distal (lower esophageal sphincter [LES]). Impedance line tracings are overlying the color and show that impedance is decreased as the liquid bolus passes each set of sensors on the catheter. Purple visually depicts the impedance and can be thought of as a column of barium: the swallowed water passes through from proximal to distal and clears. Gastrointestinal Endoscopy 2012 76, 231-243DOI: (10.1016/j.gie.2012.02.022) Copyright © 2012 American Society for Gastrointestinal Endoscopy Terms and Conditions