Confocal Endomicroscopy for Permeability of Esophageal Wall in Refractory Gastroesophageal Reflux Disease (GERD)
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
60
Confocal laser endomicroscopy (CLE) permits real-time in-vivo histologic analysis of esophageal mucosa at the time of upper endoscopy. The technology is based on the principle of illuminating a tissue with a low-power laser and then detecting fluorescent light reflected from the tissue. Because CLE relies upon tissue fluorescence, intravenous fluorescein is generally used to highlight the vasculature and intercellular spaces of the tissue being examined.
Additional biopsies will be obtained of the esophageal mucosa.These will be obtained with a standard biopsy forceps inserted through the channel in gastroscope.
MI balloon measures epithelial impedance along a 10 cm length of esophagus. The gastroscope will be withdrawn and the MI balloon will be advanced into the esophagus through the mouth. The balloon will be inflated so that the sensors contact the esophageal mucosa. After MI measurements are obtained, the balloon will be deflated and withdrawn.
Hunter Holmes McGuire VA Medical Center
Richmond, Virginia, United States
RECRUITINGCorrelation between the time from intravenous injection of fluorescein to visualization of fluorescein on probe based confocal endomicroscopy (pCLE) with esophageal permeability (i.e. - epithelial barrier function).
Time frame: Through study completion, an average of 1 year.
Compare the time from intravenous injection of fluorescein to visualization of fluorescein on probe based confocal endomicroscopy (pCLE) in patients with Barrett's esophagus and controls
Time frame: Through study completion, an average of 1 year.
Compare the time from intravenous injection of fluorescein to visualization of fluorescein on probe based confocal endomicroscopy (pCLE) in patients with symptoms of refractory GERD and Barrett's esophagus
Time frame: Through study completion, an average of 1 year.
Correlation between the Ussing's chamber findings (esophageal permeability) and confocal endomicroscopy findings of patients with symptoms of refractory GERD and Barrett's esophagus
Time frame: Through study completion, an average of 1 year.
Correlation between the Ussing's chamber findings (esophageal permeability) and confocal endomicroscopy findings of patients with symptoms of refractory GERD and controls
Time frame: Through study completion, an average of 1 year.
Correlation between the Ussing's chamber findings (esophageal permeability) and Mucosal impedance findings of patients with symptoms of refractory GERD and controls
Time frame: Through study completion, an average of 1 year.
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