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Method of esophageal function testing with a standardized thixotropic swallow challenge medium

  • US 7,764,992 B2
  • Filed: 06/01/2007
  • Issued: 07/27/2010
  • Est. Priority Date: 01/29/2003
  • Status: Active Grant
First Claim
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1. A method of testing peristalsis and bolus transit in a person'"'"'s esophagus, comprising:

  • positioning a plurality of electrodes in longitudinally spaced relation to each other in a person'"'"'s esophagus;

    having the person swallow a thixotropic swallow challenge medium that has low shear viscosity in a range of 391,000 to 529,000 centipoises, medium shear viscosity in a range of 76,500 to 103,500 centipoises, and high shear viscosity in a range of 11,475 to 15,525 centipoises; and

    measuring impedance across the electrodes as the swallow challenge medium moves through the esophagus, wherein the impedance measurements are indicative of peristalsis or bolus transit.

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