Proximal and distal esophageal sensitivity is decreased in patients with Barrett’s esophagus

Figure 1 Probe design and probe placement in the esophagus during the study. After stimulation 4 cm above the esophago-gastric junction (EGJ) the probe was retracted 10 cm and the remaining protocol completed. Inlet and an outlet channels were used for circulation of water during mechanical and thermal stimulation. Electrodes were used for electrical stimulation (see text for details).