The purpose and aim of this study are to compare changes in pulse volume to non-invasively predict active bleeding or high-risk stigmata in patients undergoing a gastrointestinal endoscopy to assess feasibility of the flow meter clinically.
The maximum change in volume of a limb segment during the cardiac cycle - pulse volume - will be monitored non-invasively along with standard vitals in patients with a suspected gastrointestinal bleed undergoing endoscopy. Pulse volume and vitals will be collected prior to and following endoscopy up to the point of dismissal from the endoscopy unit so that the data may be correlated with the endoscopic and clinical findings.
Study Type
OBSERVATIONAL
Enrollment
13
Measures peripheral pulse volumes by an electrode applied non-invasively to the lower extremity (left or right) at the beginning of the endoscopic evaluation for the duration of the procedure, and up to 2 hours after the completion of the procedure.
Mayo Clinic Minnesota
Rochester, Minnesota, United States
Changes in peripheral pulse volume with and without active bleeding
Peripheral pulse volume as measured by pulse flowmeter (uL/cm) pre and post endoscopic evaluation
Time frame: Baseline, approximately 2 hours post endoscopy
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